CN107974902A - Screed camber regulating mechanism based on hydraulic-driven - Google Patents

Screed camber regulating mechanism based on hydraulic-driven Download PDF

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Publication number
CN107974902A
CN107974902A CN201711393873.3A CN201711393873A CN107974902A CN 107974902 A CN107974902 A CN 107974902A CN 201711393873 A CN201711393873 A CN 201711393873A CN 107974902 A CN107974902 A CN 107974902A
Authority
CN
China
Prior art keywords
screed
screw
sprocket wheel
pivoted housing
double thread
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.)
Pending
Application number
CN201711393873.3A
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Chinese (zh)
Inventor
周兴
郜鹏
刘彬
殷春明
张淼
常项开
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Engineering Machinery Institute
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Tianjin Engineering Machinery Institute
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tianjin Engineering Machinery Institute filed Critical Tianjin Engineering Machinery Institute
Priority to CN201711393873.3A priority Critical patent/CN107974902A/en
Publication of CN107974902A publication Critical patent/CN107974902A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/12Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials

Abstract

The present invention relates to a kind of screed camber regulating mechanism based on hydraulic-driven, by being internally provided with two oppositely oriented internal threads in double thread pivoted housing, the screw rod opposite with two thread rotary orientations coordinates two screw threads respectively, intermediate chain wheel is driven to rotate by fluid-power motor, intermediate chain wheel drives left front sprocket wheel to rotate by drive chain, sprocket coaxiality is connected before left front sprocket wheel and the right side, preceding sprocket wheel and rear sprocket wheel keep rotating synchronously by driving chain, i.e. two double thread pivoted housings can synchronously rotate in same direction, and be adjusted so as to fulfill the camber of screed.Relatively reliable compared to the camber adjusting mechanism being fixedly mounted on screed, the situation for not having de- chain occurs;The camber adjusting mechanism manual compared to needs, camber adjusting mechanism in the invention of this hair in real time can be adjusted screed camber in paving process, work efficiency higher, reduces the chance that worker closely adjusts screed camber manually, to the safety of construction personnel advantageously.

Description

Screed camber regulating mechanism based on hydraulic-driven
Technical field
The invention belongs to paver technical field, and dress is adjusted more particularly to a kind of screed camber based on hydraulic-driven Put.
Background technology
The screed of paver generally comprises left frame and right rack, and the effect of camber regulating mechanism is to adjust screed Angle between left frame and right rack.In view of road surface drainage function and the safety requirements of bend, different road pavement forms will Different screed cambers is sought, the camber state of screed is acted directly on the road surface to pave, road pavement construction quality shadow Sound is huge.Especially in thin layer paving process, the satisfy the need influence of face thickness and shape of roadbed injustice becomes apparent, to ensure to pave Quality, need to frequently adjust camber to adapt to the change of roadbed, the road surface for the high quality that can just pave out.Camber in original design is adjusted Device, its hydraulic motor are fixedly installed in left screed by support plate, when adjusting screed camber, left and right screed it Between there is angle so that not in the same plane, there is the situation of de- chain in big sprocket wheel and minor sprocket.
The existing manual camber regulating mechanism of screed is to set a pair of of mounting base, each pair respectively in left and right rack mostly A hinged left-handed screw and right handed screw in mounting base, and be connected through a screw thread between two bars, it is necessary to manually rotate spiral shell respectively The precession or back-out of bar, so as to change the angle between the rack of left and right, achieve the purpose that to adjust screed camber.This adjusting side Method, it is cumbersome, it is not only time-consuming and laborious, and be also less prone to reach construction requirement.
The content of the invention
The present invention provides a kind of improvement existing hydraulic arch-adjusting mechanism appearance to solve technical problem present in known technology Easily de- chain the defects of, simplify the volume of camber regulating mechanism, and improve the work efficiency for adjusting screed camber based on hydraulic pressure The screed camber regulating mechanism of driving.
The present invention is adopted the technical scheme that to solve technical problem present in known technology:
A kind of screed camber regulating mechanism based on hydraulic-driven, it is left that screed camber regulating mechanism is installed on screed Between rack and the right rack of screed, screed left frame and the right rack of screed are hinged axis connection by rack, its feature exists In:Including fluid-power motor, middle connecting plate, preceding connecting plate, rear connecting plate, left front axis pin, right front pin axis, left front screw rod, left back Screw rod, two right-handed nuts, two preceding copper sheathings, copper sheathing, left front sprocket wheel, intermediate chain wheel, right preceding sprocket wheel, rear sprocket wheel, drive after two Dynamic chain, driving chain, preceding double thread pivoted housing, rear double thread pivoted housing, right front screw, it is right after screw rod, two left-handed nuts, left back Axis pin, right rear pin shaft, sprocket wheel reducing sleeve, pressing plate, wherein preceding connecting plate one end is equipped with borehole structure, preceding double thread pivoted housing is installed on In the borehole structure, two preceding copper sheathings are installed between preceding connecting plate and preceding double thread pivoted housing, the preceding connecting plate other end is equipped with two A waist-shaped hole, two waist-shaped holes are fixedly connected by screw bolt and nut with middle connecting plate one end, the left end of preceding double thread pivoted housing Equipped with levogyrate inner thread hole, the right end of preceding double thread pivoted housing is equipped with dextrorotation internal thread hole, left front screw rod and left back screw rod periphery Left hand thread is equipped with, screw rod periphery is equipped with right-handed thread, left front screw rod and preceding double thread pivoted housing after right front screw and the right side The screw-internal thread fit of left end, and a left-handed nut is installed between the two, right front screw and preceding double thread pivoted housing right end Screw-internal thread fit, and a preceding right-handed nut is installed between the two, sprocket wheel passes through screw and preceding pair before left front sprocket wheel and the right side Screw thread pivoted housing is fixedly and coaxially connected, and left front axis pin is hinged with left front spiro rod rear end circular hole, right front pin axis and right front screw rear end Circular hole is hinged;
Described rear connecting plate one end is equipped with borehole structure, and rear double thread pivoted housing is installed in the borehole structure, both it Between be provided with two after copper sheathing, the rear connecting plate other end is equipped with two waist-shaped holes, and two waist-shaped holes are by screw bolt and nut with Between the connecting plate other end be fixedly connected, the left end of rear double thread pivoted housing is equipped with levogyrate inner thread hole, the right end of rear double thread pivoted housing Equipped with dextrorotation internal thread hole, the internal thread hole of left back screw rod and rear double thread pivoted housing left end coordinates, and is provided between the two One left-handed nut, it is right after the internal thread hole of screw rod and rear double thread pivoted housing right end coordinate, and be provided with one between the two Right-handed nut afterwards, rear sprocket wheel are fixedly and coaxially connected by screw and rear double thread pivoted housing, and left back axis pin is justified with left back spiro rod rear end Hole is hinged, and the circular hole of right rear pin shaft and spiro rod rear end behind the right side is hinged;
Circular hole is equipped with close to in-between position on the middle connecting plate, fluid-power motor is installed in circular hole, it is middle Sprocket wheel is fixedly connected by sprocket wheel reducing sleeve and pressing plate with fluid-power motor output shaft, is provided between intermediate chain wheel and left front sprocket wheel Drive chain, driving chain is provided between preceding sprocket wheel and rear sprocket wheel;
Two pairs of coaxially connected ears are equipped with the upside of screed left frame right end, two pairs are equipped with the upside of the right rack left end of screed together Axis connection ear, left front axis pin and left back axis pin are hinged with two engaging lugs on screed left frame respectively, right front pin axis and the right side Rear pin shaft is hinged with two pairs of engaging lugs in the right rack of screed respectively.
The present invention can also use following technical measures:
Scale mechanism is further included, the scale mechanism includes pointer slide bar, pointer, scale slide bar, scale, the left spiral shell of scale Nail, right screw, pointer are installed on pointer slide bar close to middle position, and scale upper side is equipped with equi-distance scale, and is installed on mark Ruler slide bar centre position, pointer slide bar right end are equipped with circular hole, and left end is equipped with waist-shaped hole, and scale slide bar right end is equipped with waist-shaped hole, left End is equipped with circular hole, and left screw passes through the circular hole of scale slide bar left end and the waist-shaped hole of pointer slide bar left end and left back end part of pin shaft Threaded hole connects, and right screw passes through the waist-shaped hole of scale slide bar right end and the circular hole of pointer slide bar right end and right rear pin shaft end Threaded hole connects.
The present invention has the advantages and positive effects of:The present invention by double thread pivoted housing be internally provided with two it is oppositely oriented Internal thread, the screw rod opposite with two thread rotary orientations coordinates two screw threads respectively, passes through fluid-power motor and drives intermediate chain to rotate Dynamic, intermediate chain wheel drives left front sprocket wheel to rotate by drive chain, left front sprocket wheel and it is right before sprocket coaxiality be connected, it is right before sprocket wheel and Sprocket wheel keeps rotating synchronously by driving chain afterwards, i.e., two double thread pivoted housings can synchronously rotate in same direction, so as to fulfill ironing The camber of plate is adjusted.It is relatively reliable compared to the camber adjusting mechanism being fixedly mounted on screed, the situation of de- chain is not had Occur;Compared to manual camber adjusting mechanism is needed, the camber adjusting mechanism in the invention of this hair can be real in paving process When screed camber is adjusted, work efficiency higher, reduce worker manually closely adjust screed camber chance, it is right The safety of construction personnel is advantageously.
Brief description of the drawings
Fig. 1 is overall schematic of the present invention;
Fig. 2 is exploded perspective view of the present invention;
Fig. 3 is the explosive view of scale mechanism in the present invention;
Fig. 4 adjusts the left and right rack of screed for the present invention, schematic diagram when making the screed centre position raise up.
In figure:1st, fluid-power motor;2.1st, middle connecting plate;2.2nd, preceding connecting plate;2.3rd, rear connecting plate;3.1st, left front pin Axis;3.2nd, right front pin axis;4.1st, left front screw rod;4.2nd, left back screw rod;5th, left-handed nut;6.1st, preceding copper sheathing;6.2nd, rear copper sheathing;7、 Left front sprocket wheel;8th, drive chain;9th, driving chain;10.1st, preceding double thread pivoted housing;10.2nd, rear double thread pivoted housing;11.1, it is middle Sprocket wheel;11.2nd, sprocket wheel before the right side;11.3rd, rear sprocket wheel;12.1st, right front screw;12.2nd, screw rod behind the right side;13.1st, preceding right-handed nut; 13.2nd, rear right-handed nut;14.1st, left back axis pin;14.2nd, right rear pin shaft;15th, scale mechanism;15.1st, pointer slide bar;15.2, refer to Pin;15.3rd, scale slide bar;15.4, scale;15.5th, left screw;15.6th, right screw;16th, rack articulated shaft;17th, screed is right Rack;18th, screed left frame;19th, sprocket wheel reducing sleeve, 20, pressing plate.
Embodiment
In order to further understand the content, features and effects of the present invention, the following examples are hereby given, and coordinate attached drawing Describe in detail as follows:
Please refer to Fig.1 to Fig.4, a kind of screed camber regulating mechanism based on hydraulic-driven, screed camber adjusts dress Put installed between screed left frame 18 and the right rack 17 of screed, screed left frame 18 and the right rack 17 of screed pass through Rack articulated shaft 16 connects, it is characterised in that:Including fluid-power motor 1, middle connecting plate 2.1, preceding connecting plate 2.2, rear connecting plate 2.3rd, left front axis pin 3.1, right front pin axis 3.2, left front screw rod 4.1, the preceding copper sheathing of the right-handed nut 5, two of left back screw rod 4.2, two 6.1st, copper sheathing 6.2, left front sprocket wheel (big sprocket wheel) 7, intermediate chain wheel 11.1, right preceding sprocket wheel (minor sprocket) 11.2, rear sprocket wheel after two 11.3rd, behind drive chain 8, driving chain 9, preceding double thread pivoted housing 10.1, rear double thread pivoted housing 10.2, right front screw 12.1, the right side Screw rod 12.2, two left-handed nuts 13, left back axis pin 14.1, right rear pin shaft 14.2, sprocket wheel reducing sleeve 19, pressing plates 20, wherein before 2.2 one end of connecting plate is equipped with borehole structure, and preceding double thread pivoted housing 10.1 is installed in the borehole structure, and preceding connecting plate 2.2 is with before Two preceding copper sheathings 6.1 are installed, preceding 2.2 other end of connecting plate is equipped with two waist-shaped holes, two waists between double thread pivoted housing 10.1 Type hole is fixedly connected by screw bolt and nut with 2.1 one end of middle connecting plate, and the left end of preceding double thread pivoted housing 10.1 is equipped with left-handed Internal thread hole, the right end of preceding double thread pivoted housing 10.1 are equipped with dextrorotation internal thread hole, and left front screw rod 4.1 and left back screw rod 4.2 are cylindrical Face is equipped with left hand thread, right front screw 12.1 and it is right after 12.2 periphery of screw rod be equipped with right-handed thread, left front screw rod 4.1 with The screw-internal thread fit of preceding 10.1 left end of double thread pivoted housing, and a left-handed nut 5 is installed between the two, right front screw 12.1 With the screw-internal thread fit of preceding 10.1 right end of double thread pivoted housing, and a preceding right-handed nut 13.1 is installed between the two, it is left front Sprocket wheel 11.2 is fixedly and coaxially connected by screw and preceding double thread pivoted housing 10.1 before sprocket wheel 7 and the right side, left front axis pin 3.1 and left front spiral shell 4.1 rear end circular hole of bar is hinged, and right front pin axis 3.2 and the circular hole of right 12.1 rear end of front screw are hinged;
Described 2.3 one end of rear connecting plate is equipped with borehole structure, and rear double thread pivoted housing 10.2 is installed in the borehole structure, Copper sheathing 6.2 after being provided with two between the two, rear 2.3 other end of connecting plate are equipped with two waist-shaped holes, and two waist-shaped holes pass through spiral shell Screw bolt and nut is fixedly connected with 2.1 other end of middle connecting plate, and the left end of rear double thread pivoted housing 10.2 is equipped with levogyrate inner thread hole, The right end of double thread pivoted housing 10.2 is equipped with dextrorotation internal thread hole afterwards, and left back screw rod 4.2 is interior with rear 10.2 left end of double thread pivoted housing Threaded hole coordinates, and is provided with a left-handed nut 5 between the two, screw rod 12.2 and rear 10.2 right end of double thread pivoted housing behind the right side Internal thread hole coordinate, and right-handed nut 13.2 after being provided with one between the two, rear sprocket wheel 11.3 pass through screw with it is rear double Screw thread pivoted housing 10.2 is fixedly and coaxially connected, and left back axis pin 14.1 is hinged with left back 4.2 rear end circular hole of screw rod, right rear pin shaft 14.2 with The circular hole of 12.2 rear end of screw rod is hinged behind the right side;
Circular hole is equipped with close to in-between position on the middle connecting plate 2.1, fluid-power motor 1 is installed in circular hole, Intermediate chain wheel 11.1 is fixedly connected by sprocket wheel reducing sleeve 19 and pressing plate 20 with 1 output shaft of fluid-power motor, 11.1 He of intermediate chain wheel Drive chain 8 is installed between left front sprocket wheel 7, driving chain 9 is installed between preceding sprocket wheel 11.2 and rear sprocket wheel 11.3;
Two pairs of coaxially connected ears are equipped with the upside of 18 right end of screed left frame, two are equipped with the upside of right 17 left end of rack of screed To coaxially connected ear, left front axis pin 3.1 and left back axis pin 14.1 are hinged with two engaging lugs on screed left frame 18 respectively, The two pairs of engaging lugs of right front pin axis 3.2 and right rear pin shaft 14.2 respectively in rack 17 right with screed are hinged.
Scale mechanism 15 is further included, the scale mechanism includes pointer slide bar 15.1, pointer 15.2, scale slide bar 15.3rd, the left screw 15.5 of scale 15.4, scale, right screw 15.6, pointer 15.2 are installed on pointer slide bar 15.1 close to centre Position, 15.4 upper side of scale are equipped with equi-distance scale, and are installed on 15.3 centre position of scale slide bar, 15.1 right end of pointer slide bar Equipped with circular hole, left end is equipped with waist-shaped hole, and 15.3 right end of scale slide bar is equipped with waist-shaped hole, and left end is equipped with circular hole, and left screw 15.5 is logical Cross the circular hole of 15.3 left end of scale slide bar and the waist-shaped hole of pointer slide bar (15.1) left end and the screw thread of left back 14.1 end of axis pin Hole connects, and the circular hole for 15.1 right end of waist-shaped hole and pointer slide bar that right screw 15.6 passes through 15.3 right end of scale slide bar behind the right side with selling The threaded hole connection of 14.2 end of axis.
The present invention is internally provided with two oppositely oriented internal threads by double thread pivoted housing, two screw threads respectively with two spiral shells The oppositely oriented screw rod of line coordinates, and drives intermediate chain wheel to rotate by fluid-power motor, and intermediate chain wheel is driven left by drive chain Preceding sprocket wheel rotates, and sprocket coaxiality is connected before left front sprocket wheel and the right side, and right preceding sprocket wheel and rear sprocket wheel keep synchronous by driving chain and turn Dynamic, i.e., two double thread pivoted housings can synchronously rotate in same direction, and be adjusted so as to fulfill the camber of screed.Compared to being fixedly mounted on Camber adjusting mechanism on screed is relatively reliable, and the situation for not having de- chain occurs;Adjusted compared to manual camber is needed Mechanism, the camber adjusting mechanism in the invention of this hair in real time can be adjusted screed camber in paving process, work effect Rate higher, reduces the chance that worker closely adjusts screed camber manually, to the safety of construction personnel advantageously.
The above is only the preferred embodiments of the present invention, and not makees limitation in any form to the present invention, Every technical spirit according to the present invention belongs to any simple modification made for any of the above embodiments, equivalent variations and modification In the range of technical solution of the present invention.

Claims (2)

1. a kind of screed camber regulating mechanism based on hydraulic-driven, screed camber regulating mechanism is installed on the left machine of screed Between frame (18) and the right rack of screed (17), screed left frame (18) and the right rack of screed (17) pass through rack articulated shaft Connection, it is characterised in that:Including fluid-power motor (1), middle connecting plate (2.1), preceding connecting plate (2.2), rear connecting plate (2.3), Left front axis pin (3.1), right front pin axis (3.2), left front screw rod (4.1), left back screw rod (4.2), two right-handed nuts (5), two Preceding copper sheathing (6.1), copper sheathing (6.2), left front sprocket wheel (7), intermediate chain wheel (11.1), right preceding sprocket wheel (11.2), rear sprocket wheel after two (11.3), drive chain (8), driving chain (9), preceding double thread pivoted housing (10.1), rear double thread pivoted housing (10.2), right front screw (12.1), screw rod (12.2), two left-handed nuts (13), left back axis pin (14.1), right rear pin shaft (14.2), sprocket wheel switching behind the right side (19), pressing plate (20) are covered, wherein preceding connecting plate (2.2) one end is equipped with borehole structure, preceding double thread pivoted housing (10.1) is installed on this In borehole structure, two preceding copper sheathings (6.1), preceding connection are installed between preceding connecting plate (2.2) and preceding double thread pivoted housing (10.1) Plate (2.2) other end is equipped with two waist-shaped holes, and two waist-shaped holes are fixed by screw bolt and nut and middle connecting plate (2.1) one end Connection, the left end of preceding double thread pivoted housing (10.1) are equipped with levogyrate inner thread hole, and the right end of preceding double thread pivoted housing (10.1) is equipped with the right side Medial rotation threaded hole, left front screw rod (4.1) and left back screw rod (4.2) periphery are equipped with left hand thread, right front screw (12.1) and Screw rod (12.2) periphery is equipped with right-handed thread behind the right side, and left front screw rod (4.1) is interior with preceding double thread pivoted housing (10.1) left end Thread fitting, and a left-handed nut (5) is installed between the two, right front screw (12.1) and preceding double thread pivoted housing (10.1) The screw-internal thread fit of right end, and a preceding right-handed nut (13.1) is installed between the two, sprocket wheel before left front sprocket wheel (7) and the right side (11.2) it is fixedly and coaxially connected by screw and preceding double thread pivoted housing (10.1), after left front axis pin (3.1) and left front screw rod (4.1) End circular hole is hinged, and right front pin axis (3.2) and the circular hole of right front screw (12.1) rear end are hinged;
Described rear connecting plate (2.3) one end is equipped with borehole structure, and rear double thread pivoted housing (10.2) is installed in the borehole structure, Copper sheathing (6.2) after being provided with two between the two, rear connecting plate (2.3) other end are equipped with two waist-shaped holes, and two waist-shaped holes lead to Cross screw bolt and nut to be fixedly connected with middle connecting plate (2.1) other end, the left end of rear double thread pivoted housing (10.2) is equipped with left-handed Internal thread hole, the right end of rear double thread pivoted housing (10.2) are equipped with dextrorotation internal thread hole, left back screw rod (4.2) and rear double thread pivoted housing (10.2) internal thread hole of left end coordinates, and is provided with a left-handed nut (5) between the two, and screw rod (12.2) is with after behind the right side The internal thread hole of double thread pivoted housing (10.2) right end coordinates, and right-handed nut (13.2) after being provided with one between the two, after Sprocket wheel (11.3) is fixedly and coaxially connected by screw and rear double thread pivoted housing (10.2), left back axis pin (14.1) and left back screw rod (4.2) rear end circular hole is hinged, and right rear pin shaft (14.2) and the circular hole of screw rod (12.2) rear end behind the right side are hinged;
Circular hole is equipped with close to in-between position on the middle connecting plate (2.1), fluid-power motor (1) is installed in circular hole, Intermediate chain wheel (11.1) is fixedly connected by sprocket wheel reducing sleeve (19) and pressing plate (20) with fluid-power motor (1) output shaft, intermediate chain Drive chain (8) is installed between wheel (11.1) and left front sprocket wheel (7), is installed between preceding sprocket wheel (11.2) and rear sprocket wheel (11.3) There is driving chain (9);
Two pairs of coaxially connected ears are equipped with the upside of screed left frame (18) right end, two are equipped with the upside of the right rack of screed (17) left end To coaxially connected ear, left front axis pin (3.1) and left back axis pin (14.1) are connected with two on screed left frame (18) respectively Ear is hinged, and right front pin axis (3.2) and right rear pin shaft (14.2) are hinged with two pairs of engaging lugs in the right rack of screed (17) respectively.
2. the screed camber regulating mechanism according to claim 1 based on hydraulic-driven, it is characterised in that:Further include mark Ruler mechanism (15), the scale mechanism include pointer slide bar (15.1), pointer (15.2), scale slide bar (15.3), scale (15.4), the left screw of scale (15.5), right screw (15.6), pointer (15.2) are installed on pointer slide bar (15.1) close to centre Position, scale (15.4) upper side are equipped with equi-distance scale, and are installed on scale slide bar (15.3) centre position, pointer slide bar (15.1) right end is equipped with circular hole, and left end is equipped with waist-shaped hole, and scale slide bar (15.3) right end is equipped with waist-shaped hole, and left end is equipped with circular hole, Left screw (15.5) passes through the circular hole of scale slide bar (15.3) left end and the waist-shaped hole and left rear pin of pointer slide bar (15.1) left end The threaded hole connection of axis (14.1) end, the waist-shaped hole and pointer slide bar that right screw (15.6) passes through scale slide bar (15.3) right end (15.1) circular hole of right end is connected with the threaded hole of right rear pin shaft (14.2) end.
CN201711393873.3A 2017-12-21 2017-12-21 Screed camber regulating mechanism based on hydraulic-driven Pending CN107974902A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711393873.3A CN107974902A (en) 2017-12-21 2017-12-21 Screed camber regulating mechanism based on hydraulic-driven

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711393873.3A CN107974902A (en) 2017-12-21 2017-12-21 Screed camber regulating mechanism based on hydraulic-driven

Publications (1)

Publication Number Publication Date
CN107974902A true CN107974902A (en) 2018-05-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711393873.3A Pending CN107974902A (en) 2017-12-21 2017-12-21 Screed camber regulating mechanism based on hydraulic-driven

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110027799A (en) * 2019-04-01 2019-07-19 黑龙江兰德超声科技股份有限公司 It is a kind of to couple the pipeline transportation fixed device of adjusting for increasing oil suitable for oil well

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110027799A (en) * 2019-04-01 2019-07-19 黑龙江兰德超声科技股份有限公司 It is a kind of to couple the pipeline transportation fixed device of adjusting for increasing oil suitable for oil well
CN110027799B (en) * 2019-04-01 2020-06-19 黑龙江兰德超声科技股份有限公司 Adjusting and fixing device for pipeline transportation suitable for oil well coupling oil increasing

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