CN103469836A - Shoveling blade rotating device and land leveler - Google Patents
Shoveling blade rotating device and land leveler Download PDFInfo
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- CN103469836A CN103469836A CN2013103893600A CN201310389360A CN103469836A CN 103469836 A CN103469836 A CN 103469836A CN 2013103893600 A CN2013103893600 A CN 2013103893600A CN 201310389360 A CN201310389360 A CN 201310389360A CN 103469836 A CN103469836 A CN 103469836A
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- oil cylinder
- perching knife
- slewing equipment
- connecting rod
- valve
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Abstract
The invention provides a shoveling blade rotating device used for a land leveler and composed of a driving cylinder, a connecting rod and a transmission device. The transmission device is provided with an input shaft and an output shaft, one end of the driving cylinder is connected with one end of the connecting rod, the connecting rod is connected with the input shaft of the transmission device, and the output shaft of the transmission device is used for driving a shoveling blade to rotate. By the above structure, the connecting rod driven by two oil cylinders and connected with an input shaft of a gearbox is adopted, and the rotating angle of the connecting rod is further amplified through the gearbox, so that 360-degree rotation of the shoveling blade is realized, the shoveling blade rotating device is simple in structure, higher in transmission efficiency and capable of realizing bigger-amplitude rotation. In addition, the invention further provides the land leveler which comprises the shoveling blade rotating device.
Description
Technical field
The present invention relates to engineering machinery field, particularly a kind of perching knife slewing equipment and land leveller.
Background technology
Land leveller be a kind of by perching knife come equating ground, except the large-scale engineering machinery of the work such as accumulated snow, ditching, the perching knife revolution is one of the most key parts of land leveller, the quality of perching knife slewing equipment directly has influence on the transaction capabilities of land leveller.Widely used land leveller both domestic and external is mainly by the fluid motor-driven worm and gear at present; pass to again interior engagement gear ring and drive turning circle; realize revolute function; this mechanism is comparatively complicated; cost of manufacture is high; and hydraulic motor, worm and gear self-locking property are poor, often there will be the self-locking failure phenomenon, this mechanism driving efficiency is lower simultaneously.Another structure is to adopt two hydraulic oil cylinder driving connecting rods, then adds hydraulic distribution valve and realize 360 degree revolutions, and this organization hydraulic pressure system is more complicated, and flat valve makes more difficultly, and cost is higher.
Summary of the invention
In view of this, the present invention proposes a kind of perching knife slewing equipment and land leveller, for solving the problem that perching knife slewing equipment complex structure and transmission efficiency are low.
On the one hand, the present invention proposes a kind of perching knife slewing equipment, described perching knife slewing equipment is for land leveller, comprise driving cylinder, connecting rod and be provided with power shaft and output shaft drive, one end of described driving cylinder is connected with an end of described connecting rod, described connecting rod is connected with the power shaft of described transmission device, and the output shaft of described transmission device is for driving the perching knife revolution.
Further, described driving cylinder comprises the first oil cylinder and the second oil cylinder, described the first oil cylinder and the second oil cylinder are set up in parallel, one end of described the first oil cylinder and the second oil cylinder is hinged with the two ends of connecting rod respectively, described connecting rod middle part is fixedly connected with the power shaft of described transmission device by connecting axle, and described transmission device is gear-box.
Further, the rodless cavity of the rod chamber of described the first oil cylinder and described the second oil cylinder is by pipeline connection, and the rod chamber of the rodless cavity of described the first oil cylinder and described the second oil cylinder passes through pipeline connection.
Further, described perching knife slewing equipment also comprises hydraulic system, and described hydraulic system comprises oil pump, and described oil pump is used to described driving cylinder fuel feeding.
Further, described hydraulic system also comprises reversal valve, and described reversal valve is placed on the pipeline between described the first oil cylinder, the second oil cylinder and described oil pump.
Further, described reversal valve is three position four-way directional control valve, and described three position four-way directional control valve is for controlling turning to of perching knife.
Further, described hydraulic system also comprises equalizing valve, and described equalizing valve is for the protection of described the first oil cylinder and described the second oil cylinder, and described equalizing valve is located on the pipeline between described the first oil cylinder, the second oil cylinder and reversal valve.
Further, described hydraulic system also comprises overflow valve, and described overflow valve is placed in the two ends of described oil pump.
The perching knife slewing equipment of said structure, the connecting rod that adopts two hydraulic oil cylinder driving to be connected with gearbox input shaft, by gear-box, the angle of revolution of connecting rod is further amplified, thereby realize the 360 degree rotations of perching knife slewing equipment, structure is comparatively simple, simultaneously, transmission efficiency is higher, can realize rotation by a larger margin.
On the other hand, the present invention also proposes a kind of land leveller, and described land leveller comprises the perching knife slewing equipment, and described perching knife slewing equipment is perching knife slewing equipment as above.
Further, described perching knife slewing equipment is arranged at the land leveller central rack.
The land leveller of said structure, have advantages of that simple in structure, with low cost, self-locking performance reaches well the aspects such as transmission efficiency height.
The accompanying drawing explanation
The accompanying drawing that forms a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention the present invention does not form inappropriate limitation of the present invention for explaining.
The structural representation that Fig. 1 is a kind of land leveller of the embodiment of the present invention;
The structural representation that Fig. 2 is a kind of perching knife slewing equipment of the embodiment of the present invention;
Fig. 3 is a kind of perching knife slewing equipment of the embodiment of the present invention and hydraulic system connection diagram;
The internal construction schematic diagram that Fig. 4 is a kind of gear-box of this inventive embodiments.
In Fig. 1 to Fig. 4, the corresponding relation of Reference numeral is:
1 afer bay 2 drive axle 3 driver's cabin 4 apparatus for work
5 forebay 6 overflow valve 7 oil pump 8 reversal valves
9 equalizing valve 10 hitch frame 11 hinge 12 hydraulic jacks
13 turning circle 14 perching knife 15 connecting rod 16 gear-boxes
17 first oil cylinder 18 second oil cylinder 19 connecting portion 20 first gears
21 first joint 22 power shaft 23 second joint 24 second gears
25 casing 26 output shafts
The specific embodiment
It should be noted that, in the situation that do not conflict, embodiment and the feature in embodiment in the present invention can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
Land leveller as shown in Figure 1, comprise frame, drive axle 2, driver's cabin 3 and apparatus for work 4, and wherein, frame comprises forebay 5 and afer bay 1, and motor is placed on afer bay 1, and afer bay 1 is placed on drive axle 2.The driver's cabin 3 that is used for controlling land leveller is between afer bay 1 and forebay 5, and forebay 5 middle parts raise up, and apparatus for work 4 is placed in forebay 5 bottoms.
The perching knife slewing equipment is as the part of apparatus for work 4, comprise driving cylinder, connecting rod 15 and be provided with the transmission device of power shaft 22 and output shaft 26, the perching knife slewing equipment is fixed in forebay 5 middle parts by rocker, as shown in Figure 2, particularly, driving cylinder is hydraulic jack 12, transmission device is the gear-box 16 that is provided with power shaft 22 and output shaft 26, hydraulic jack 12 comprises the first oil cylinder 17 and the second oil cylinder 18, the first oil cylinder 17 and the second oil cylinder 18 be arranged in parallel, the first oil cylinder 17 is connected with hitch frame 10 with an end of the second oil cylinder 18, the two ends of the other end and connecting rod 15 are hinged, connecting rod 15 middle parts are provided with connecting portion 19, connecting portion 19 is fixedly connected with the power shaft 22 of gear-box 16, gear-box 16 is step-up gear, the output shaft 26 of gear-box 16 is fixedly connected with turning circle 13, perching knife 14 is fixed on turning circle 13.During work, hydraulic power supply outputting power to the first oil cylinder 17 and the second oil cylinder 18, the first oil cylinder 17 and the second oil cylinder 18 promote the revolution that connecting rod 15 completes certain angle, by gear-box 16, connecting rod 15 angles of revolution are amplified again, the output shaft 26 promotion turning circles 13 that are gear-box 16 are done rotation by a relatively large margin, thereby realize that 360 degree of perching knife 14 rotate.
Particularly, as shown in Figure 3, hydraulic system comprises oil pump 7, reversal valve 8 and equalizing valve 9, oil pump 7 is for providing pressure oil, the oil inlet end of oil pump 7 communicates with hydraulic oil container, oil outlet end is connected with three position four-way directional control valve, equalizing valve 9 is communicated with reversal valve 8, equalizing valve 9 is connected with an end of the second oil cylinder 18 with the first oil cylinder 17 by pipeline, be used for to the first oil cylinder 17 and the second oil cylinder 18 fuel feeding, the first oil cylinder 17 is connected with equalizing valve 9 by another pipeline with the other end of the second oil cylinder 18, this pipeline is oil return pipe, after equalizing valve 9, by pipeline, with reversal valve 8, be connected, finally by pipeline, flow back to fuel tank.It should be noted that, also be provided with overflow valve 6 on in-line, when in-line pressure surpasses predetermined value, overflow valve 6 is started working, and hydraulic oil is by overflow valve 6 overflows.
In technique scheme, the rodless cavity hydraulic fluid port of the first oil cylinder 17 communicates with the rod chamber hydraulic fluid port of the second oil cylinder 18, the rod chamber hydraulic fluid port of the first oil cylinder 17 communicates with the rodless cavity hydraulic fluid port of the second oil cylinder 18, as shown in Figure 3, when the rodless cavity oil-feed of the first oil cylinder 17, the first oil cylinder 17 starts elongation, now, the rod chamber of the second oil cylinder 18 also starts oil-feed, the second oil cylinder 18 starts to shrink, promote connecting rod 15 clockwise direction rotations, now, the connecting rod 15 turned clockwise promotes perching knife 14 clockwise direction rotations by gear-box 16.On the contrary, as the first oil cylinder 17 rod chamber oil-feeds, during the second oil cylinder 18 rodless cavity oil-feed, promote counterclockwise rotation of connecting rod 15, and further promote counterclockwise rotation of perching knife 14.
Gear-box 16 as shown in Figure 4, comprise casing 25, power shaft 22, output shaft 26, the first gear 20 and the second gear 24, power shaft 22 is fixedly connected with the connecting portion 19 on connecting rod 15, the two ends of connecting rod 15 are provided with the first joint 21 and the second joint 23, the first joint 21 is respectively used to an end of the second oil cylinder 18, be connected with an end with the first oil cylinder 17 with the second joint 23, the first gear 20 and the second gear 24 are located in casing 25, the first gear 20 is arranged on output shaft 26, the second gear 24 is arranged on power shaft 22, the first gear 20 and the second gear 24 are all the time in engagement.It should be noted that, for perching knife 14 revolutions that make to be connected with output shaft 26 reach 360 degree, the gearratio of two gears should be less than 1, and the number of teeth of the first gear 20 should be less than the number of teeth of the second gear 24.
The operating principle of above-mentioned perching knife slewing equipment is as follows:
Hydraulic oil pump 7 is the liquid draw force feed from fuel tank, after oil pump 7 becomes hydraulic oil, flow through reversal valve 8 and equalizing valve 9, to the first oil cylinder 17 and the second oil cylinder 18 fuel feeding, because rod chamber and the rodless cavity of the first oil cylinder 17 communicates with rodless cavity and the rod chamber of the second oil cylinder 18 respectively, therefore, after the first oil cylinder 17 and the logical oil of the second oil cylinder 18, two oil cylinders will replace expanding-contracting action, and when the first oil cylinder 17 elongation, the second oil cylinder 18 shrinks; When the first oil cylinder 17 shrinks, the second oil cylinder 18 elongations.One end of the first oil cylinder 17 and the second oil cylinder 18 is connected with hitch frame 10 two ends by hinge 11, the other end is connected with connecting rod 15 two ends by hinge 11, when the first oil cylinder 17 and the second oil cylinder 18, by elongation or while shrinking drive link 15 rotation, the end that two oil cylinders are connected with connecting rod 15 will be done around connecting rod 15 center the rotation of certain angle.Because connecting rod 15 is fixedly connected with the power shaft 22 of gear-box 16, during connecting rod 15 rotation, the second gear 24 of driven gear case 16 rotates, the second gear 24 drives the first gear 20 be fixed on output shaft 26 and rotates, and due to second gear 24 numbers of teeth, more than the first gear 20, therefore can be amplified the rotating angle of connecting rod 15, realize the revolution of 360 degree, because the output shaft 26 of gear-box 16 is fixedly connected with perching knife 14, therefore, will promote perching knife 14 and realize the revolution of 360 degree.
In technique scheme, equalizing valve 9 has been installed, when land leveller is worked; the perching knife slewing equipment often needs to be fixed on certain angle and carries out work; as three position four-way directional control valve 8 when the meta, just can be locked oil cylinder, lock the position of perching knife slewing equipment simultaneously; land leveller is in operation process; the perching knife slewing equipment often runs into larger impact load, now, as there is no safeguard measure; in-oil cylinder pressure can raise rapidly, and equalizing valve 9 can carry out the off-load protection to oil cylinder in time.
In technique scheme, as need, realize the forward or reverse of perching knife slewing equipment, the working position that changes reversal valve 8 just can be realized, easy switching.
The perching knife slewing equipment of said structure has following advantage:
At first, simple in structure, transmission efficiency is high.The perching knife slewing equipment of said structure, adopt hydraulic oil cylinder driving connecting rod 15, one end of the first oil cylinder 17 and the second oil cylinder 18 is hinged with the two ends of connecting rod 15 respectively, 15 rotations of hydraulic oil cylinder driving connecting rod, then by step-up gear 16, connecting rod 15 angles of revolution are further amplified, thereby realize that 360 degree of perching knife 14 rotate, structure is comparatively simple, simultaneously, transmission efficiency is higher, can realize rotation by a larger margin.
Secondly, self-locking performance is good, and manufacturing cost is lower.The perching knife slewing equipment of said structure, can realize the locking to the perching knife slewing equipment by reversal valve 8, thus the fixing operating angle of perching knife slewing equipment, self-locking performance is better, simultaneously, and because the structure of whole perching knife slewing equipment is more simple, therefore, manufacturing cost is lower.
In addition, the present invention also proposes a kind of land leveller, and described land leveller comprises the perching knife slewing equipment, and described perching knife slewing equipment is perching knife slewing equipment as above.Particularly, the perching knife slewing equipment is arranged at the land leveller central rack.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a perching knife slewing equipment, for land leveller, it is characterized in that, described perching knife slewing equipment comprises driving cylinder, connecting rod (15) and is provided with power shaft (22) and the transmission device of output shaft (26), one end of described driving cylinder is connected with an end of described connecting rod (15), described connecting rod (15) is connected with the power shaft (22) of described transmission device, and the output shaft of described transmission device (26) is for driving perching knife (14) revolution.
2. perching knife slewing equipment according to claim 1, it is characterized in that, described driving cylinder comprises the first oil cylinder (17) and the second oil cylinder (18), described the first oil cylinder (17) and the second oil cylinder (18) are set up in parallel, one end of described the first oil cylinder (17) and the second oil cylinder (18) is hinged with the two ends of connecting rod (15) respectively, described connecting rod (15) middle part is fixedly connected with the power shaft (22) of described transmission device by connecting axle, and described transmission device is gear-box (16).
3. perching knife slewing equipment according to claim 2, it is characterized in that, the rodless cavity of the rod chamber of described the first oil cylinder (17) and described the second oil cylinder (18) is by pipeline connection, and the rod chamber of the rodless cavity of described the first oil cylinder (17) and described the second oil cylinder (18) passes through pipeline connection.
4. perching knife slewing equipment according to claim 2, is characterized in that, described perching knife slewing equipment also comprises hydraulic system, and described hydraulic system comprises oil pump (7), and described oil pump (7) is used to described driving cylinder fuel feeding.
5. perching knife slewing equipment according to claim 4, is characterized in that, described hydraulic system also comprises reversal valve (8), and described reversal valve (8) is placed on the pipeline between described the first oil cylinder (17), the second oil cylinder (18) and described oil pump (7).
6. perching knife slewing equipment according to claim 5, is characterized in that, described reversal valve (8) is three position four-way directional control valve (8), and described three position four-way directional control valve (8) is for controlling turning to of perching knife (14).
7. perching knife slewing equipment according to claim 4; it is characterized in that; described hydraulic system also comprises equalizing valve (9); described equalizing valve (9) is for the protection of described the first oil cylinder (17) and described the second oil cylinder (18), and described equalizing valve (9) is located on the pipeline between described the first oil cylinder (17), the second oil cylinder (18) and described reversal valve (8).
8. perching knife slewing equipment according to claim 4, is characterized in that, described hydraulic system also comprises overflow valve (6), and described overflow valve (6) is placed in the two ends of described oil pump (7).
9. a land leveller, comprise the perching knife slewing equipment, it is characterized in that, described perching knife slewing equipment is the described perching knife slewing equipment of any one in claim 1 to 8.
10. land leveller according to claim 9, is characterized in that, described perching knife slewing equipment is arranged at the land leveller central rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310389360.0A CN103469836B (en) | 2013-08-30 | 2013-08-30 | A kind of perching knife slewing equipment and land leveller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310389360.0A CN103469836B (en) | 2013-08-30 | 2013-08-30 | A kind of perching knife slewing equipment and land leveller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103469836A true CN103469836A (en) | 2013-12-25 |
| CN103469836B CN103469836B (en) | 2015-12-23 |
Family
ID=49794865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310389360.0A Expired - Fee Related CN103469836B (en) | 2013-08-30 | 2013-08-30 | A kind of perching knife slewing equipment and land leveller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103469836B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111980089A (en) * | 2019-05-22 | 2020-11-24 | 卡特彼勒公司 | Rotary disc driving system for soil leveling machine |
| CN112663718A (en) * | 2021-03-16 | 2021-04-16 | 招远华丰机械设备有限公司 | Novel steering cylinder hinge device of internal combustion scraper |
| CN113802629A (en) * | 2021-09-23 | 2021-12-17 | 徐州徐工筑路机械有限公司 | Small-size leveler gyration circle mechanism and leveler |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4053016A (en) * | 1976-09-07 | 1977-10-11 | Caterpillar Tractor Co. | Motor grader blade lift and control mechanism and method |
| CN201004786Y (en) * | 2006-11-07 | 2008-01-16 | 徐州徐工筑路机械有限公司 | Swing mechanism of the machining device of the land scraper |
| CN202000303U (en) * | 2011-03-11 | 2011-10-05 | 王秋江 | Hydraulic soft driving device for rotary trash cleaning machine |
| CN102212996A (en) * | 2011-05-20 | 2011-10-12 | 同济大学 | Rotary land leveler operating device based on short-tooth shape |
| CN202865878U (en) * | 2012-10-26 | 2013-04-10 | 愚公机械股份有限公司 | Small-scale wheel type full rotation excavator |
-
2013
- 2013-08-30 CN CN201310389360.0A patent/CN103469836B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4053016A (en) * | 1976-09-07 | 1977-10-11 | Caterpillar Tractor Co. | Motor grader blade lift and control mechanism and method |
| CN201004786Y (en) * | 2006-11-07 | 2008-01-16 | 徐州徐工筑路机械有限公司 | Swing mechanism of the machining device of the land scraper |
| CN202000303U (en) * | 2011-03-11 | 2011-10-05 | 王秋江 | Hydraulic soft driving device for rotary trash cleaning machine |
| CN102212996A (en) * | 2011-05-20 | 2011-10-12 | 同济大学 | Rotary land leveler operating device based on short-tooth shape |
| CN202865878U (en) * | 2012-10-26 | 2013-04-10 | 愚公机械股份有限公司 | Small-scale wheel type full rotation excavator |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111980089A (en) * | 2019-05-22 | 2020-11-24 | 卡特彼勒公司 | Rotary disc driving system for soil leveling machine |
| CN111980089B (en) * | 2019-05-22 | 2023-05-05 | 卡特彼勒公司 | Rotary disk driving system for soil grader |
| CN112663718A (en) * | 2021-03-16 | 2021-04-16 | 招远华丰机械设备有限公司 | Novel steering cylinder hinge device of internal combustion scraper |
| CN112663718B (en) * | 2021-03-16 | 2021-11-12 | 招远华丰机械设备有限公司 | Novel steering cylinder hinge device of internal combustion scraper |
| CN113802629A (en) * | 2021-09-23 | 2021-12-17 | 徐州徐工筑路机械有限公司 | Small-size leveler gyration circle mechanism and leveler |
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| Publication number | Publication date |
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| CN103469836B (en) | 2015-12-23 |
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