Equipment for improving descending controllability of movable arm of excavator
The utility model discloses equipment for improving the descending controllability of a movable arm of an excavator, and relates to the technical field of excavators, in particular to equipment for improving the descending controllability of the movable arm of the excavator, which comprises a valve...
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| creator | ZHU KUN MA AIZHEN GAO LEI LIU HONG YANG FAN WANG SONG WANG MENG MENG XIAOXING |
| description | The utility model discloses equipment for improving the descending controllability of a movable arm of an excavator, and relates to the technical field of excavators, in particular to equipment for improving the descending controllability of the movable arm of the excavator, which comprises a valve body, two connecting ports, a first oil conveying port, a cavity, a valve core component, a spring, a valve seat and a second oil conveying port. A plurality of V-shaped and U-shaped throttling grooves are formed in a valve element in the throttling valve, the descending controllability of a movable arm of the excavator is improved, flow control can be carried out on hydraulic oil passing through the interior of the throttling valve, the throttling grooves are changed into the V-shaped and U-shaped throttling grooves, the micro-control performance is enhanced, and the problem that in the prior art, the throttling grooves are not prone to falling is solved. At present, valve element openings of core opening throttli |
| format | Patent |
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A plurality of V-shaped and U-shaped throttling grooves are formed in a valve element in the throttling valve, the descending controllability of a movable arm of the excavator is improved, flow control can be carried out on hydraulic oil passing through the interior of the throttling valve, the throttling grooves are changed into the V-shaped and U-shaped throttling grooves, the micro-control performance is enhanced, and the problem that in the prior art, the throttling grooves are not prone to falling is solved. At present, valve element openings of core opening throttli</description><language>chi ; eng</language><subject>BLASTING ; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR ; FLUID-PRESSURE ACTUATORS ; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS ; HEATING ; HYDRAULICS OR PNEUMATICS IN GENERAL ; LIGHTING ; MECHANICAL ENGINEERING ; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL ; WEAPONS</subject><creationdate>2022</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220125&DB=EPODOC&CC=CN&NR=215634075U$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25562,76317</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220125&DB=EPODOC&CC=CN&NR=215634075U$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ZHU KUN</creatorcontrib><creatorcontrib>MA AIZHEN</creatorcontrib><creatorcontrib>GAO LEI</creatorcontrib><creatorcontrib>LIU HONG</creatorcontrib><creatorcontrib>YANG FAN</creatorcontrib><creatorcontrib>WANG SONG</creatorcontrib><creatorcontrib>WANG MENG</creatorcontrib><creatorcontrib>MENG XIAOXING</creatorcontrib><title>Equipment for improving descending controllability of movable arm of excavator</title><description>The utility model discloses equipment for improving the descending controllability of a movable arm of an excavator, and relates to the technical field of excavators, in particular to equipment for improving the descending controllability of the movable arm of the excavator, which comprises a valve body, two connecting ports, a first oil conveying port, a cavity, a valve core component, a spring, a valve seat and a second oil conveying port. A plurality of V-shaped and U-shaped throttling grooves are formed in a valve element in the throttling valve, the descending controllability of a movable arm of the excavator is improved, flow control can be carried out on hydraulic oil passing through the interior of the throttling valve, the throttling grooves are changed into the V-shaped and U-shaped throttling grooves, the micro-control performance is enhanced, and the problem that in the prior art, the throttling grooves are not prone to falling is solved. 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A plurality of V-shaped and U-shaped throttling grooves are formed in a valve element in the throttling valve, the descending controllability of a movable arm of the excavator is improved, flow control can be carried out on hydraulic oil passing through the interior of the throttling valve, the throttling grooves are changed into the V-shaped and U-shaped throttling grooves, the micro-control performance is enhanced, and the problem that in the prior art, the throttling grooves are not prone to falling is solved. At present, valve element openings of core opening throttli</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | BLASTING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL WEAPONS |
| title | Equipment for improving descending controllability of movable arm of excavator |
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