CN202595683U - Road sweeper - Google Patents
Road sweeper Download PDFInfo
- Publication number
- CN202595683U CN202595683U CN 201220168036 CN201220168036U CN202595683U CN 202595683 U CN202595683 U CN 202595683U CN 201220168036 CN201220168036 CN 201220168036 CN 201220168036 U CN201220168036 U CN 201220168036U CN 202595683 U CN202595683 U CN 202595683U
- Authority
- CN
- China
- Prior art keywords
- hole
- casing
- guide
- rear end
- main valve
- 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 - Lifetime
Links
Images
Landscapes
- Actuator (AREA)
Abstract
The utility model discloses a road sweeper which comprises a box-toppled oil cylinder, the box-toppled oil cylinder comprises a cylinder barrel, a front end cover, a rear end cover, a piston and a piston rod, one end, provided with a through hole, of the rear end cover is provided with a thread cartridge valve body, the internal upper part of the thread cartridge valve body is provided with a non-magnetic sleeve, the internal lower part of the thread cartridge valve body is provided with an armature, the center of the top of the armature is provided with a pilot spring hole and filled with a pilot spring, the internal upper part of the non-magnetic sleeve is provided with a non-magnetic cover, the outer sides of the non-magnetic sleeve and the non-magnetic cover are provided with a coil, a valve bush is arranged below the thread cartridge valve body and in the through hole, a main valve core is arranged in a circular truncated cone body at the internal upper part of the valve bush, the internal center of the main valve bush is provided with a cavity, a pilot valve core is arranged in the main valve core, the pilot valve core is connected with the lower part of the armature, the lower part of the pilot valve core is provided with a main spring through penetrating, a circular truncated cone shaped cylinder at the upper part of the valve bush is provided with an oil hole, and the oil hole corresponds to a hole II formed in the main valve core and a branch channel on the rear end cover.
Description
Technical field
The utility model relates to a kind of sweeping machine.
Background technology
Existing a kind of sweeping machine, it contains chassis, subframe, casing, clearing apparatus, casing and topples over oil cylinder.Subframe is fixed on the chassis ridgepole; The rear end of subframe is provided with the casing bearing; The rear end of casing is hinged on the casing bearing, and the bottom that casing is toppled over bottom earrings and the subframe of oil cylinder constitutes hinged, and it is hinged with the bottom formation of casing that casing is toppled over the tailpiece of the piston rod earrings of oil cylinder.The main effect that casing is toppled over oil cylinder is to promote to fill the casing of rubbish to turn an angle around the bearing center of casing, and rubbish is poured out from casing.The casing that existing sweeping machine contains is toppled over oil cylinder and is not had explosion stack locking security function usually; Therefore when toppling over the oil pipe accident explosion of the outside connection of oil cylinder; Can't carry out safe locking, thereby have security incident hidden danger when after toppling over operation or overturning cabinet, carrying out repair and maintenance.
The utility model content
The technical problem that the utility model will solve provides a kind of sweeping machine, and this sweeping machine has locking function after its casing is toppled over the explosion of oil cylinder external oil pipe, thereby avoids casing to fall and the generation security incident suddenly.
For solving the problems of the technologies described above, a kind of sweeping machine of the utility model contains chassis, subframe, casing, clearing apparatus, casing and topples over oil cylinder; Subframe is fixed on the chassis ridgepole, and the rear end of subframe is provided with the casing bearing, and the rear end of casing is hinged on the casing bearing; The bottom that casing is toppled over bottom earrings and the subframe of oil cylinder constitutes hinged, and it is hinged with the bottom formation of casing that casing is toppled over the tailpiece of the piston rod earrings of oil cylinder, and said casing is toppled over oil cylinder and contained cylinder barrel, drive end bearing bracket, rear end cap, piston, piston rod; Drive end bearing bracket and rear end cap are separately positioned on the front-end and back-end of cylinder barrel, and piston is positioned at cylinder barrel, in the centre bore that an end is arranged on the piston, the other end is installed on drive end bearing bracket of piston rod; Offer the rod chamber hydraulic fluid port near drive end bearing bracket on the cylinder barrel, rear end cap is provided with through hole, and this through hole interlinks through the rodless cavity of a subchannel and cylinder barrel; One end of the through hole that said rear end cap is provided with is provided with the thread cartridge valve body, and the central authorities of this thread cartridge valve body are provided with centre bore, and the top of this centre bore is provided with non-magnetosheath; Armature is equipped with in the interior bottom of this non-magnetosheath, and this armature can move in non-magnetosheath, and the center of top of this armature is provided with guide's spring eye; In this guide's spring eye guide's spring is housed, the internal upper part of said non-magnetosheath is provided with non-magnetic lid, and the outside of non-magnetosheath and non-magnetic lid is provided with coil; Locking nut is equipped with in the upper end of non-magnetic lid, and the below of thread cartridge valve body and the through hole that is positioned at said rear end cap are provided with valve pocket, and the inner chamber body of this valve pocket is the diameter of the diameter of second order round platform column structure shape, its underpart Rotary-table less than top round platform cylinder; The end opening of bottom Rotary-table is the rodless cavity hydraulic fluid port in this valve pocket, in the valve pocket internal upper part Rotary-table main valve plug is housed, and the diameter of this main valve plug lower external face is less than the diameter of outer surface of upper; This main valve plug bottom is the cone table planform, and this cone table is arranged in the suitable for reading of said valve pocket bottom Rotary-table, and central authorities are provided with cavity in the said main valve plug; The bottom of this main valve plug is provided with hole I, and the bottom side face of this main valve plug is provided with hole II, and guide's spool is housed in this main valve plug; The middle part of this guide's spool is provided with boss; This boss is being axially arranged with fluting, and the valve point of this guide's spool is arranged in the hole I of said main valve plug bottom, and this guide's spool is connected with the bottom of armature; The top of this guide's spool is provided with hole III; This resistance hole III is connected with the end of the hole IV that armature is provided with, and the other end of hole IV is connected with guide's spring eye that armature is provided with, and the bottom of said guide's spool is coated with main spring; This main spring upper end withstands on the raised head face that is provided with in the middle part of this guide's spool; This main spring lower end withstands on the inner bottom part of said main valve plug, and the top round platform cylinder of said valve pocket is provided with oilhole, and this oilhole is corresponding with hole II and the subchannel on the said rear end cap that said main valve plug is provided with.
Piston rod the inner that said casing is toppled over oil cylinder is provided with buffer plunger, and said rear end cap is provided with and the corresponding buffer plunger of buffer plunger chamber, and the subchannel on the said rear end cap is provided with damper.
The main spring stiffness factor that said casing is toppled over oil cylinder is littler than the stiffness factor of guide spring.
The diameter that said casing is toppled over the hole II on the main valve plug of oil cylinder is littler than the diameter of said hole I.
Above-mentioned sweeping machine is in toppling over operation process or behind the overturning cabinet; When casing is toppled over the explosion of oil cylinder external oil pipe and is made the unexpected oil-break of rodless cavity hydraulic fluid port; Its valve point is pushed down the hole I of main valve plug bottom under the effect of guided missile spring formerly of guide's spool; The oilhole place fluid of valve pocket is higher in casing deadweight effect downforce, and pressure oil enters into the main valve plug cavity of resorption through via hole II, and gets into the valve pocket epicoele through guide's spool fluting; And the pressure of valve pocket epicoele, main valve plug cavity of resorption is equal to the pressure at the oilhole place of valve pocket; The oil pressure of valve pocket epicoele, main valve plug cavity of resorption is pressed in bottom Rotary-table in the valve pocket suitable for reading the cone table of main valve plug lower end, closes the passage of rodless cavity hydraulic fluid port, and the fluid in this moment cylinder barrel rodless cavity can't let out; Externally have locking function after the oil pipe explosion thereby make casing topple over oil cylinder, avoided casing to descend suddenly and the generation security incident.
Description of drawings
Fig. 1 is the structural representation of a kind of sweeping machine of the utility model.
Fig. 2 is the structure enlarged diagram that casing is toppled over oil cylinder.
Fig. 3 is the structure enlarged diagram that casing shown in Figure 2 is toppled over oil cylinder.
Fig. 4 is the partial structurtes enlarged diagram of Fig. 3.
1. locking nuts among the figure, 2. non-magnetic covers 3. coils, 4. guide's spring, 5. non-magnetosheath, 6. hole IV, 7. armature, 8. thread cartridge valve body, 9. hole III; 10. epicoele, 11. rear end caps, 12. main valve plugs, l3. main spring, 14. cavity of resorptions, bottom Rotary-tables in 15., 16. valve pockets; 17. the rodless cavity hydraulic fluid port, 18. through holes, 19. hole I, 20. valves point, 21. hole II, 22. subchannels, 23. oilholes; 24. guide's spool, 25. drive end bearing brackets, 26. cylinder barrels, 27. rod chamber hydraulic fluid ports, 28. piston rods, 29. pistons, 30. buffer plungers; 31. damper, 32. buffer plunger chambeies, 33. chassis, 34. clearing apparatus, 35. subframes, 36. casings, 37. bottom earrings.
The specific embodiment
Among Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of sweeping machine contains chassis 33, clearing apparatus 34, subframe 35, casing 36, casing topples over oil cylinder.Subframe 35 is fixed on 33 crossbeams of chassis, and the rear end of subframe 35 is provided with the casing bearing, and the rear end of casing 36 is hinged on the casing bearing.It is hinged that the bottom earrings 37 that casing is toppled over oil cylinder and subframe 35 bottoms constitute, and it is hinged with the bottom formation of casing 36 that casing is toppled over the piston rod 28 rod end earrings of oil cylinder.Casing is toppled over oil cylinder and is contained cylinder barrel 26, drive end bearing bracket 25, rear end cap 11, piston 29, piston rod 28.Drive end bearing bracket 25 and rear end cap 11 are separately positioned on the front-end and back-end of cylinder barrel 26.Piston 29 is positioned at cylinder barrel 26, and an end of piston rod 28 is connected with piston 29, the other end is installed in the centre bore of drive end bearing bracket 25.Offer rod chamber hydraulic fluid port 27 on the cylinder barrel 26 near drive end bearing bracket 25.Rear end cap 11 is provided with through hole 18, and this through hole 18 interlinks through the rodless cavity of a subchannel 22 with cylinder barrel 26.One end of the through hole 18 that said rear end cap 11 is provided with is provided with thread cartridge valve body 8; The central authorities of this thread cartridge valve body 8 are provided with centre bore; The top of this centre bore is provided with non-magnetosheath 5, and armature 7 is equipped with in the interior bottom of this non-magnetosheath 5, and this armature 7 can move in non-magnetosheath 5.The center of top of this armature 7 is provided with guide's spring eye, in this guide's spring eye guide's spring 4 is housed.The internal upper part of said non-magnetosheath 5 is provided with non-magnetic lid 2, and non-magnetosheath 5 is provided with coil 3 with the outside of non-magnetic lid 2, and locking nut 1 is equipped with in the upper end of non-magnetic lid 2.The below of electromagnetic core 7 and the through hole 18 that is positioned at said rear end cap 11 are provided with valve pocket 16; The inner chamber body of this valve pocket 16 is the diameter of the diameter of second order round platform column structure shape, its underpart Rotary-table 15 less than top round platform cylinder, and the end opening of bottom Rotary-table 15 is a rodless cavity hydraulic fluid port 17 in this valve pocket 16.In the valve pocket 16 internal upper part Rotary-tables main valve plug 12 is housed, the diameter of these main valve plug 12 lower external face is less than the diameter of outer surface of upper, and these main valve plug 12 bottoms are the cone table planform, and this cone table is arranged in the suitable for reading of said valve pocket 16 bottom Rotary-tables 15.Central authorities are provided with cavity in the said main valve plug 12, and the bottom of this main valve plug 12 is provided with hole I19, and the bottom side face of this main valve plug 12 is provided with hole II21; In this main valve plug 12 guide's spool 24 is housed; The middle part of this guide's spool 24 is provided with boss, and this boss is being axially arranged with fluting, and the valve point 20 of this guide's spool 24 is arranged in the hole I19 of said main valve plug 12 bottoms; This guide's spool 24 is connected with the bottom of electromagnetic core 7; The top of this guide's spool 24 is provided with hole III9, and this hole III9 is connected with the end of the hole IV6 that electromagnetic core 7 is provided with, and the other end of hole IV6 is connected with guide's spring eye that electromagnetic core 7 is provided with.The bottom of said guide's spool 24 is coated with main spring 13, and these main spring 13 upper ends withstand on the raised head face that these guide's spool 24 middle parts are provided with, and these main spring 13 lower ends withstand on the inner bottom part of said main valve plug 12.The top round platform cylinder of said valve pocket 12 is provided with oilhole 23, and this oilhole 23 is corresponding with hole II21 and the subchannel 22 on the said rear end cap 11 that said main valve plug 12 is provided with.More steady in order to reset after the sweeping machine casing is toppled over, the inner of said piston rod 28 is provided with buffer plunger 30, and said rear end cap 11 is provided with and buffer plunger 30 corresponding buffer plunger chambeies 32, and the subchannel 22 of said rear end cap 11 is provided with damper 31.For further strengthening locking property, improving safety factor, the stiffness factor of said main spring 13 is littler than the stiffness factor of guide spring 4.For improving the unlatching performance of main valve plug 12, said hole II21 diameter is very little, and said hole I19 diameter is bigger than hole II21 diameter.Above-mentioned sweeping machine is in operation process, and the coil 3 that casing is toppled over oil cylinder is no power generally, and when only after casing 36 is dumped rubbish, returning, coil 3 is just switched on.During rubbish in needs are toppled over 36 casings, its valve point 20 is pushed down the hole I19 of main valve plug 12 bottoms under guide's spool 24 that casing is toppled over oil cylinder effect of guided missile spring 4 formerly, after rodless cavity hydraulic fluid port 17 gets into hydraulic oil; Rodless cavity hydraulic fluid port 17 hydraulic fluid port pressure raise; Hydraulic oil overcomes the elastic force of guide's spring 4, promotes main valve plug 12, upwards opens together with guide's spool 24; Hydraulic oil gets in the rodless cavity of cylinder barrel 26 through oil-through hole 23, subchannel 22; When the pressure of hydraulic oil generation can overcome the resistance of piston rod 28 ends, piston 29 moved, and toppled over thereby casing is risen.When after casing 36 is dumped rubbish, returning; Casing is toppled over coil 3 energisings of oil cylinder; Under the effect of electromagnetic force, armature 7 overcomes the elastic force of guide's spring 4 and drives guide's spool 24 and moves up, and the valve point 20 of guide's spool 24 leaves the hole I19 of main valve plug 12 bottoms; This moment, the guide via hole II21 that flows through got into cavity of resorption 14, flowed out to rodless cavity hydraulic fluid port 17 through via hole I19 again.Because hole II21 is very little; The pressure of epicoele 10, cavity of resorption 14 is far below oilhole 23 place's pressure; Therefore the pressure oil at oilhole 23 places promotes main valve plug 12 through the ring surface at main valve plug 12 middle parts is exerted pressure and moves upward; At this moment the passage of the rodless cavity hydraulic fluid port 17 of valve pocket 16 is opened, and the fluid in the rodless cavity of cylinder barrel 26 is got back in the fuel tank from rodless cavity hydraulic fluid port 17 under casing 36 deadweights and the effect of rod chamber inner fluid pressure.Above-mentioned sweeping machine is in toppling over operation process or behind the overturning cabinet; When casing is toppled over the explosion of oil cylinder external oil pipe and is made the unexpected oil-break of rodless cavity hydraulic fluid port 17, push down the hole I19 of main valve plug 12 bottoms under guide's spool 24 effect of guided missile spring 4 formerly, oilhole 23 place's fluid are higher in casing deadweight effect downforce; Pressure oil enters into cavity of resorption 14 through via hole II21; And get into epicoeles 10 through guide's spool 24 fluting, and and the pressure of epicoele 10, cavity of resorption 14 is equal to the pressure at oilhole 23 places, the oil pressure of epicoele 10, cavity of resorption 14 is pressed in bottom Rotary-tables 15 in the valve pocket 16 suitable for reading the cone table of main valve plug 12 lower ends; Close the passage of rodless cavity hydraulic fluid port 17; Fluid in this moment cylinder barrel 26 rodless cavities can't let out, and topples over oil cylinder and externally has locking function after the oil pipe explosion thereby make, and has avoided casing 36 to descend suddenly and security incident takes place.
Claims (4)
1. sweeping machine contains chassis, subframe, casing, clearing apparatus, casing and topples over oil cylinder, and subframe is fixed on the chassis ridgepole; The rear end of subframe is provided with the casing bearing, and the rear end of casing is hinged on the casing bearing, and casing is toppled over the bottom earrings of oil cylinder and the bottom of subframe constitutes hinged; The bottom that casing is toppled over tailpiece of the piston rod earrings and the casing of oil cylinder constitutes hinged, and it is characterized in that: said casing is toppled over oil cylinder and contained cylinder barrel, drive end bearing bracket, rear end cap, piston, piston rod, and drive end bearing bracket and rear end cap are separately positioned on the front-end and back-end of cylinder barrel; Piston is positioned at cylinder barrel, in the centre bore that an end is arranged on the piston, the other end is installed on drive end bearing bracket of piston rod, offers the rod chamber hydraulic fluid port near drive end bearing bracket on the cylinder barrel; Rear end cap is provided with through hole, and this through hole interlinks through the rodless cavity of a subchannel and cylinder barrel, and an end of the through hole that said rear end cap is provided with is provided with the thread cartridge valve body; The central authorities of this thread cartridge valve body are provided with centre bore, and the top of this centre bore is provided with non-magnetosheath, and armature is equipped with in the interior bottom of this non-magnetosheath; This armature can move in non-magnetosheath, and the center of top of this armature is provided with guide's spring eye, in this guide's spring eye guide's spring is housed; The internal upper part of said non-magnetosheath is provided with non-magnetic lid, and the outside of non-magnetosheath and non-magnetic lid is provided with coil, and locking nut is equipped with in the upper end of non-magnetic lid; The below of thread cartridge valve body and the through hole that is positioned at said rear end cap are provided with valve pocket, and the inner chamber body of this valve pocket is the diameter of the diameter of second order round platform column structure shape, its underpart Rotary-table less than top round platform cylinder, and the end opening of bottom Rotary-table is the rodless cavity hydraulic fluid port in this valve pocket; In the valve pocket internal upper part Rotary-table main valve plug is housed, the diameter of this main valve plug lower external face is less than the diameter of outer surface of upper, and this main valve plug bottom is the cone table planform; This cone table is arranged in the suitable for reading of said valve pocket bottom Rotary-table, and central authorities are provided with cavity in the said main valve plug, and the bottom of this main valve plug is provided with hole I; The bottom side face of this main valve plug is provided with hole II; Guide's spool is housed in this main valve plug, and the middle part of this guide's spool is provided with boss, and this boss is being axially arranged with fluting; The valve point of this guide's spool is arranged in the hole I of said main valve plug bottom; This guide's spool is connected with the bottom of armature, and the top of this guide's spool is provided with hole III, and this resistance hole III is connected with the end of the hole IV that armature is provided with; The other end of hole IV is connected with guide's spring eye that armature is provided with; The bottom of said guide's spool is coated with main spring, and this main spring upper end withstands on the raised head face that is provided with in the middle part of this guide's spool, and this main spring lower end withstands on the inner bottom part of said main valve plug; The top round platform cylinder of said valve pocket is provided with oilhole, and this oilhole is corresponding with hole II and the subchannel on the said rear end cap that said main valve plug is provided with.
2. a kind of sweeping machine according to claim 1; It is characterized in that: piston rod the inner that said casing is toppled over oil cylinder is provided with buffer plunger; Said rear end cap is provided with and the corresponding buffer plunger of buffer plunger chamber, and the subchannel on the said rear end cap is provided with damper.
3. a kind of sweeping machine according to claim 1 is characterized in that: the main spring stiffness factor that said casing is toppled over oil cylinder is littler than the stiffness factor of guide spring.
4. a kind of sweeping machine according to claim 1 is characterized in that: the diameter that said casing is toppled over the hole II on the main valve plug of oil cylinder is littler than the diameter of said hole I.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220168036 CN202595683U (en) | 2012-04-18 | 2012-04-18 | Road sweeper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220168036 CN202595683U (en) | 2012-04-18 | 2012-04-18 | Road sweeper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202595683U true CN202595683U (en) | 2012-12-12 |
Family
ID=47313234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220168036 Expired - Lifetime CN202595683U (en) | 2012-04-18 | 2012-04-18 | Road sweeper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202595683U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105350476A (en) * | 2015-11-24 | 2016-02-24 | 广西玉柴重工有限公司 | Connecting locking mechanism of multifunctional city cleaning vehicle |
-
2012
- 2012-04-18 CN CN 201220168036 patent/CN202595683U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105350476A (en) * | 2015-11-24 | 2016-02-24 | 广西玉柴重工有限公司 | Connecting locking mechanism of multifunctional city cleaning vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101514944B (en) | Hydraulic drive sampling assemble for seabed cylindrical sample | |
| CN101504336B (en) | Hydraulically driving seabed multi-column shaped sampling and sealing system | |
| CN202597320U (en) | Pipe-explosion-preventing and self-locking oil cylinder | |
| US8496096B2 (en) | Front fork | |
| WO2009028100A1 (en) | Hydraulic shock absorber for elevator | |
| CN105874238A (en) | Shock absorber | |
| CN202595683U (en) | Road sweeper | |
| CN107461374A (en) | A kind of undercarriage control pressurized strut hydraulic control valve | |
| CN105201942B (en) | Balanced valve and autocrane | |
| CN102628462A (en) | Box toppling cylinder of sweeping machine | |
| CN203223567U (en) | Vibration reducing prefill valve | |
| CN203098721U (en) | Double-cylinder magneto-rheological absorber | |
| CN202031908U (en) | Fast forward cylinder | |
| CN202718124U (en) | Piling power device of hydraulic pile driver | |
| CN101504338B (en) | Anti-pollution anti-pressure seal assembly of seabed tubular sampling instrument | |
| CN103233939A (en) | Hydraulic oil cylinder structure of hydraulic pile driver | |
| CN101545448A (en) | Power machine with water flowing uphill | |
| CN207437486U (en) | Two level governor valve | |
| CN102826481B (en) | Ultrahigh-pressure powerful jack | |
| CN201236983Y (en) | Overflow valve of high-pressure pump | |
| CN201010481Y (en) | Hydraulic jack | |
| CN100582434C (en) | Liquid control one-way valve for suspension moving top beam hydraulic chock | |
| CN110259763A (en) | Cylinder cushion device | |
| CN210068114U (en) | Ultrasonic preheating type steam distribution valve | |
| CN101927950A (en) | Buffering device of rotating pin mechanism on the end of container hanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121212 |