CN104604372B - A kind of cantilever vertical jacking system - Google Patents
A kind of cantilever vertical jacking system Download PDFInfo
- Publication number
- CN104604372B CN104604372B CN201510052191.0A CN201510052191A CN104604372B CN 104604372 B CN104604372 B CN 104604372B CN 201510052191 A CN201510052191 A CN 201510052191A CN 104604372 B CN104604372 B CN 104604372B
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- guide
- guide sleeve
- fixedly connected
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- hydraulic cylinder
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Abstract
The invention discloses a kind of cantilever vertical jacking system,Including rack,Guide sleeve,Hydraulic cylinder and workpiece,The workpiece includes augers and transmission case,The rack is equipped with guide rod,The guide sleeve includes connecting portion,Guide hole portion,Connecting seat,Guide hole portion is equipped with the guide hole to cooperate with guide rod,The guide hole of the guide rod through guide sleeve is connected with guide sleeve,Guide sleeve is fixedly connected with the transmission case of workpiece,One end of hydraulic cylinder is hinged by hinge and frame lower hinged seat,The other end of hydraulic cylinder is fixedly connected by connection structure with guide sleeve connecting seat,Each guide rod passes through the corresponding guide hole of guide sleeve,One end is fixedly connected with lower part slab structure,The other end is fixedly connected with top slab structure,The guide rod is 2,It is connected by guide hole with guide sleeve,Endpoint respectively with rack,Lower part slab structure is fixedly connected,The hydraulic cylinder is 2,It is respectively arranged on both sides opposite guide sleeve and stent.
Description
Technical field
The present invention relates to agricultural mechanical field, particularly tractor-mounted cantilever vertical jacking system.
Background technology
In the Chinese utility model patent that Authorization Notice No. is CN201878501U, disclose a kind of greenhouse and plough deeply machine,
Including moving device and the device of digging for being located at its rear end, dig device by be fastenedly connected with moving device fixed frame, be located at
Lifting gear, transmission device and the tensioning apparatus that adjustable shelf, control adjustable shelf on fixed frame move up and down are formed, it lifts dress
Put and be equipped with 4 root posts by parallel on bracket, column bottom is fastenedly connected with bracket, and column upper end is open, on adjustable shelf
Equipped with the sleeve to connect is slided with column, the drilling rod driving mechanism body of adjustable shelf includes the horizontal drive shaft being meshed with bevel gear
With vertical drilling rod axis, drilling rod axis is arranged in pairs in horizontal drive shaft lower part, and drilling rod is terminated with drilling rod axis, and drilling rod is equipped with spiral
Piece, the flight hand of spiral on the drilling rod of the left and right sides is on the contrary, 2 hydraulic cylinders are respectively arranged on fixed frame rear and front end, oil
Cylinder seat is connected with bracket, and piston rod is connected with adjustable shelf.The utility model realizes the vertical lift of drilling rod, has depth of turning soil
Greatly, the advantages that operation amplitude broad, work efficiency is high.Since this structure device that will dig is arranged at fixed frame lower portion, 2
Hydraulic cylinder is respectively arranged on side before and after fixed frame, causes to dig device and its annex is difficult to dismantle, installs, replace, maintenance difficulties
It is larger, and connecting rod it is more also adds somewhat to structural complexity and manufacture cost.
In a kind of scarifier for raising Chinese yam of Chinese utility model patent (CN2914612Y), a kind of hydraulic cylinder is disclosed
One end be connected with frame lower, the lifting system that the other end is fixedly connected by lifting gear and gearbox with the connecting seat of sliding sleeve
System, so as to solve the problems, such as control pine soil depth.Here, lifting gear is the chain or steel wire, sprocket wheel hung on gearbox
Or the combination of fixed pulley and hydraulic cylinder, in the lifting process that gearbox is realized by this structure, since hydraulic cylinder only lower end is consolidated
Due in rack, the effect and upper end of hydraulic cylinder is not only stressed, also by left and right thrust, is influenced by leverage, its with
There are high torque on the fixing point of rack, easily occur to loosen, be broken, structural stability is poor, easily causes security incident；Hydraulic pressure
The displacement of cylinder will can just be converted to the displacement of gearbox by multiple sprocket wheels or fixed pulley, and structure is complex, particularly exists
When the quality of gearbox is bigger, the fixation difficulty of sprocket wheel or fixed pulley is bigger, higher to the intensity of chain or steel wire, is unsuitable for big
The lifting of quality work component；When Driven by Hydraulic Cylinder gearbox rises, drawn by left end gearbox gravity and right end chain or steel wire
Both power collective effect, adds the load and power consumption of hydraulic cylinder, and operate speed change cylinder decline when, due to hydraulic cylinder can not give become
Only by farming of conducting oneself with dignity, so that its tilth is uncontrolled, easily there is yielding ground farming in the downward power of fast case, gearbox
Situation too deep, fastening soil cultivating is excessively shallow, is unsuitable for intensive cultivation deep ploughing operation；It is real that workpiece can not rely on 2 guide rods to carry out
Existing stable structure, there are the deficiencies of complicated, stability is poor, power consumption is high, Maintenance Difficulty, is only applicable to the simple of small-sized plot and makees
Industry.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of workpiece easy for removal and installation, replaces, maintenance side
Just, and the relatively simple cantilever vertical jacking system of structure, to meet the needs of big machinery agricultural production.
To achieve the above object, the technical solution adopted by the present invention is：
A kind of cantilever vertical jacking system, including rack, guide sleeve, hydraulic cylinder and workpiece, the workpiece bag
Augers and transmission case are included, the rack is equipped with a plurality of vertical guide rod being generally aligned in the same plane, and the guide sleeve includes
Connecting portion, guide hole portion, connecting seat, guide hole portion are equipped with the guide hole to cooperate with guide rod, and the guide rod passes through guide sleeve
Guide hole is connected with guide sleeve, and guide sleeve is fixedly connected with the transmission case of workpiece, and one end of hydraulic cylinder passes through hinge and rack
Lower hinge seat is hinged, and the other end of hydraulic cylinder is fixedly connected by connection structure with guide sleeve connecting seat.Here, guide rod can
For two, more than 3 can be also set to according to actual needs.Equally, hydraulic cylinder also accordingly based upon structure and needs to set quantity.
Powder ridge machine using the above structure, when the piston rod of hydraulic cylinder is shunk, hydraulic cylinder drives guide sleeve and work department
Part moves downward, and after the piston rod movement of hydraulic cylinder is to certain distance, the drilling rod of workpiece moves downward and extend into soil
In earth, to realize deep ploughing subsoiling, so as to improve the effect of deep ploughing subsoiling.When the piston rod of connecting rod hydraulic cylinder stretches out, hydraulic cylinder
Guide sleeve and workpiece is driven to move upwards, after the piston rod movement of hydraulic cylinder is to certain distance, the drilling rod of workpiece
Move upwards and drilling rod is vertically left soil, stop deep ploughing subsoiling work.When being dismantled, being installed to workpiece,
Only need to disconnect guide sleeve and being fixedly connected for workpiece is i.e. achievable.When to be safeguarded to workpiece, drilling rod is such as replaced
When operation, personnel can easily be operated from workpiece rear.
As a modification of the present invention, the rack is equipped with upper and lower slab structure, and each guide rod passes through guide sleeve
Corresponding guide hole, one end is fixedly connected with lower part slab structure, and the other end is fixedly connected with top slab structure.
As a modification of the present invention, the guide rod be 2, be connected by guide hole with guide sleeve, endpoint respectively with
Rack upper and lower part slab structure is fixedly connected.
As a modification of the present invention, the guide sleeve is 2, and each guide sleeve is equipped with 1 connecting portion, 1 with leading
To the matched guide hole portion of bar, connecting portion one end of the guide sleeve is fixedly connected with guide hole portion, and the other end is consolidated with workpiece
Fixed connection, side is fixedly connected with connecting seat.Using this structure, not only can be effectively engaged with workpiece, but also can be real
Now preferable structural stability.According to the width of transmission case, the connecting portion of the guide sleeve is straight panel shape, is fixedly connected on work
The side of component；Or " L " plate shape, it is fixedly connected on the rear side of workpiece.
Another as the present invention improves, and the guide sleeve is 1, equipped with 1 connecting portion, 2 guide hole portions, Mei Gelian
Socket part is fixedly connected with 2 guide hole portions respectively, and 2 guide rods are each passed through matched guide hole portion and are connected with guide sleeve, is oriented to
It is fixedly connected among the connecting portion of set with workpiece, both sides are fixedly connected with connecting seat.This structure can carry out phase with rack
Mutual reinforcement, stablizes beneficial to system structure.
As a modification of the present invention, the connecting portion of the guide sleeve and guide hole portion are integrally formed formula structure, to increase
It is strongly guided the overall intensity of set.
As a modification of the present invention, it is fixedly connected, is equipped with by connecting rod on the inside of the slab structure of the rack upper and lower part
X-shaped reinforced structure, X-shaped reinforced structure upper end is fixedly connected with upper rack slab structure, lower end and frame lower plate shape
Structure is fixedly connected, further to strengthen the structural stability of rack.The reinforced structure can be integrally molded with rack upper and lower frames,
Also the link mechanism being connected by fastener with rack upper and lower frames can be set to.
In the present invention, the hydraulic cylinder quantity can be set as needed, and preferably 2 here, be respectively arranged on both sides phase
To guide sleeve and stent on.So both reduce retardance easy to equably drive workpiece to move up and down, decrease hydraulic pressure
The quantity of cylinder, reduces manufacture cost.As a further improvement, damper, institute are equipped with the outside of the piston rod of the hydraulic cylinder
State damper one end to be connected with hydraulic cylinder body lower end, the other end is connected with piston-rod lower end.Such as, the damper is spring,
Spring one end and hydraulic cylinder body lower end elastic connection, the other end and piston-rod lower end elastic connection.This design can prevent hydraulic pressure
Cylinder fails or maloperation causes drill bit fiercely to contact to earth, so as to protect drill bit.As a modification of the present invention, the hydraulic cylinder
Piston rod on the outside of be equipped with damper, described damper one end is connected with hydraulic cylinder body lower end, the other end and piston-rod lower end
Connection.If the damper is spring, spring one end and hydraulic cylinder body lower end elastic connection, the other end and piston-rod lower end bullet
Property connection.
One kind as above-mentioned cantilever vertical jacking system is improved, guide rod and rack upper and lower frames, the guiding of the rack
Set and each connecting rod of mount structure, the connecting portion of guide sleeve and guide hole portion and connecting seat, the X-shaped reinforcement up and down of workpiece, rack
Being fixedly connected between structure and upper and lower straightening machine frame frame may be configured as being detachably connected by what fastener was realized.It is such to set
Put, easy to the dismounting, maintenance and transport of whole system.
In conclusion by cantilever vertical jacking system of the present invention, it is total to by rack, guide sleeve, transmission case, 2 hydraulic cylinders
With composition rock-steady structure, the arrangement for saving guide rod is reached, lifting has been directly driven by hydraulic cylinder and piston rod, by hydraulic pressure
Cylinder, guide sleeve, guide rod form the vertical lift system of a stable stress, can accurately control the depth of deep ploughing subsoiling, so that
Achieve the purpose that the farming that becomes more meticulous；When being dismantled, being installed to workpiece, it is only necessary to disconnect guide sleeve and workpiece
It is fixedly connected and can be achieved, when to be safeguarded to workpiece, when such as replacing drilling rod operation, personnel can be easily from work
Component rear is operated, and realizes the convenience of dismounting, installation and maintenance, simple in structure, stability is good, possesses preferable knot
Structure stability and processing safety.
Brief description of the drawings
Fig. 1 is the assembling structure schematic diagram of cantilever vertical jacking system of the present invention；
Fig. 2 is the decomposition texture schematic diagram of cantilever vertical jacking system of the present invention；
Wherein：1. workpiece, 11. transmission cases, 12. augers, 13. connection structures, 2. racks, 21. lower panel shapes
Structure, 22. top slab structures, 23. X-shaped reinforced structures, 3. guide rods, 31. bolt heads, 32. nuts, 4. hinged seats, 5.
Connecting seat, 6. guide sleeves, 61. guide hole portions, 62. connecting portions, 63. connection structures, 7. hydraulic cylinders, 71. connection structures, 72. hinges.
Embodiment
The preferred embodiment of the present invention is further elaborated below in conjunction with attached drawing.Obviously, described implementation
Example is only part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this area is common
Technical staff's all other embodiments obtained without creative efforts, belong to the model that the present invention protects
Enclose.
As depicted in figs. 1 and 2, a kind of cantilever vertical jacking system, including rack 2, guide sleeve 6, hydraulic cylinder 7 and work department
Part 1, the workpiece 1 include augers 12 and transmission case 11, the rack 2 be equipped with it is a plurality of be generally aligned in the same plane it is vertical
Guide rod 3, the guide sleeve 6 include connecting portion 62, guide hole portion 62, connecting seat 5, guide hole portion 62 be equipped with guide rod 3 it is mutual
The guide hole of cooperation, the guide hole portion 61 of the guide rod 3 through guide sleeve 6 are connected with guide sleeve 6, guide sleeve 6 and workpiece 1
Transmission case 11 is fixedly connected, and one end of hydraulic cylinder 7 is hinged by hinge 72 and frame lower hinged seat 4, the other end of hydraulic cylinder 7
It is fixedly connected by connection structure 71 with guide sleeve connecting seat 5.
As the first embodiment of cantilever vertical jacking system of the present invention, the rack 2 is equipped with top slab structure
22nd, lower part slab structure 21, the guide rod 3 are 2, are slidably connected through guide part 61 and guide sleeve 6, one end and lower panel
Shape structure 21 is fixedly connected, and the other end is fixedly connected with top slab structure 22.The guide rod 3 includes bolt head 31, screw thread
Portion 33, nut 32, guide rod successively pass through the through hole set in top slab structure 22, the guide hole portion 61 of guide sleeve 6, lower panel
The through hole set in shape structure 21, then nut 32 be tightened against threaded portion 33, realize being fastenedly connected for guide rod 3 and rack 2.Institute
Guide sleeve is stated as 2, each guide sleeve 6 is equipped with 1 connecting portion 62,1 and the matched guide hole portion 61 of guide rod, the guiding
62 one end of connecting portion of set 6 is fixedly connected with guide hole portion 61, and the other end is fixedly connected with workpiece 1, and side is solid with connecting seat 5
Fixed connection.
Figure 2 illustrates guide sleeve 6 and hydraulic cylinder 7, a kind of connection mode of workpiece 1.The company of the guide sleeve 6
Socket part 62 is straight panel shape, and connection structure 13, connection structure 13 are stretched out in two sides of the transmission case 11 of the workpiece 1 backward
The through hole coordinated with 6 connection structure 63 of guide sleeve is equipped with, is fastenedly connected guide sleeve 6 with workpiece by bolt.In addition,
According to the width of transmission case, the other shapes such as connecting portion 62 or " L " plate shape.Such as, when transmission case it is wider when, connecting portion 62
For " L " plate shape equipped with through hole, the rear side of transmission case 11 is equipped with screw hole, after guide sleeve 6 is fixed on transmission case 11 by screw rod
Side, realization are fastenedly connected.
The connecting portion 62 of the guide sleeve 6 and guide hole portion 61 are integrally formed formula structure, and such as welded or pouring is integral
Shaping.
The inner side of rack upper and lower part slab structure 22,21 is fixedly connected by connecting rod, equipped with X-shaped reinforced structure 23,
23 upper end of X-shaped reinforced structure is fixedly connected with upper rack slab structure 22, lower end and frame lower slab structure 21 are fixed
Connection.The X-shaped reinforced structure 23 can be integrally molded with rack upper and lower frames, can also be set to by fastener and rack upper and lower frames
The link mechanism of connection.
The hydraulic cylinder 7 is 2, is fastenedly connected respectively with opposite guide sleeve 6 and lower part slab structure 21.Such as Fig. 2 institutes
Show, the piston rod of the hydraulic cylinder 7 is through the through hole of the setting of connecting seat 5 of guide sleeve 6, and the connection structure 71 of hydraulic cylinder 7 is with leading
It is close to the structure of the connecting seat 5 of set 6, the two is achieved a fixed connection by fasteners such as bolts.
In addition, damper can be set on the outside of the piston rod of the hydraulic cylinder, described damper one end and hydraulic cylinder body lower end
Connection, the other end are connected with piston-rod lower end.Such as, the damper is spring, spring one end and hydraulic cylinder body lower end elasticity
Connection, the other end and piston-rod lower end elastic connection.
System using the above structure, when the piston rod of hydraulic cylinder 7 is shunk, hydraulic cylinder 7 drives guide sleeve 6 and work department
Part 1 moves downward, and after the piston rod movement of hydraulic cylinder 7 is to certain distance, the augers 12 of workpiece 1 moves downward simultaneously
It extend into soil, to realize farming.When the piston rod of hydraulic cylinder 7 stretches out, hydraulic cylinder 7 drives guide sleeve 6 and workpiece 1
Movement upwards, after the piston rod movement of hydraulic cylinder 7 is to certain distance, the augers 12 of workpiece 1 is moved and hung down upwards
It is straight to leave soil, stop farming.When workpiece 1 is dismantled, installed, it is only necessary to disconnect guide sleeve and workpiece
It is fixedly connected and can be achieved.When to be safeguarded to workpiece, when such as replacing the operation of augers 12, personnel can be square
Just operated from 1 rear of workpiece.
As second of embodiment of cantilever vertical jacking system of the present invention, the guide sleeve 6 is 1, equipped with 1 company
62,2 guide hole portions 61 of socket part, connecting portion 62 are fixedly connected with 2 guide hole portions 61 respectively, and 2 guide rods 3 are each passed through and are engaged
Guide hole portion 61 be connected with guide sleeve 6, be fixedly connected among the connecting portion of guide sleeve 6 62 with the transmission case rear side of workpiece 1,
Both sides are fixedly connected with connecting seat 5.
It should be noted that in each embodiment of the above, the guide rod 3 of the rack 2 and rack slab structure about 2, lead
To set 6 and each connecting rod of slab structure, the connecting portion 11 of guide sleeve 6 and guide hole portion 12 and connecting seat above and below workpiece 1, rack
5th, being fixedly connected between X-shaped reinforced structure 10 and upper and lower straightening machine frame frame may be configured as detachably connecting by what fastener was realized
Connect.Such setting, easy to the dismounting, maintenance and transport of whole system.
Finally it should be noted that：Embodiment described above is merely a preferred embodiment of the present invention, and is not limited to this hair
Bright, although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it is still
It can modify to the technical solution described in foregoing embodiments, or which part technical characteristic is equally replaced
Change.Within the spirit and principles of the invention, any modification, equivalent replacement, improvement and so on, should be included in the present invention
Protection domain within.
Claims (10)
- A kind of 1. cantilever vertical jacking system, it is characterised in that including rack, guide sleeve, hydraulic cylinder and workpiece, the work Making component includes augers and transmission case, and the rack is equipped with a plurality of vertical guide rod being generally aligned in the same plane, described to lead Include connecting portion, guide hole portion, connecting seat to set, guide hole portion is equipped with the guide hole to cooperate with guide rod, and the guide rod passes through The guide hole of guide sleeve is connected with guide sleeve, and guide sleeve is fixedly connected with the transmission case of workpiece, and one end of hydraulic cylinder passes through hinge Chain is hinged with frame lower hinged seat, and the other end of hydraulic cylinder is fixedly connected by connection structure with guide sleeve connecting seat, described Rack is equipped with upper and lower slab structure, and each guide rod passes through the corresponding guide hole of guide sleeve, and one end is fixed with lower part slab structure Connection, the other end are fixedly connected with top slab structure, and the guide rod is 2, is connected by guide hole with guide sleeve, endpoint point It is not fixedly connected with rack upper and lower part slab structure, the hydraulic cylinder is 2, is respectively arranged on the opposite guide sleeve in both sides and branch On frame；When being dismantled, being installed to workpiece, it is only necessary to which disconnecting guide sleeve can be real with being fixedly connected for workpiece Existing, when to be safeguarded to workpiece, personnel can easily be operated from workpiece rear.
- 2. cantilever vertical jacking system as claimed in claim 1, it is characterised in that the guide sleeve is 2, each guide sleeve Equipped with 1 connecting portion, 1 company is fixed with the matched guide hole portion of guide rod, connecting portion one end and the guide hole portion of the guide sleeve Connect, the other end is fixedly connected with workpiece, and side is fixedly connected with connecting seat.
- 3. cantilever vertical jacking system as claimed in claim 2, it is characterised in that the connecting portion of the guide sleeve is straight panel Shape, is fixedly connected on the side of workpiece.
- 4. cantilever vertical jacking system as claimed in claim 2, it is characterised in that the connecting portion of the guide sleeve is " L " plate Shape, is fixedly connected on the rear side of workpiece.
- 5. cantilever vertical jacking system as claimed in claim 1, it is characterised in that the guide sleeve is 1, equipped with 1 company Socket part, 2 guide hole portions, each connecting portion are fixedly connected with 2 guide hole portions respectively, and 2 guide rods are each passed through matched lead Hole portion is connected with guide sleeve, is fixedly connected among the connecting portion of guide sleeve with workpiece, both sides are fixedly connected with connecting seat.
- 6. the cantilever vertical jacking system as described in one of the claims, it is characterised in that the connecting portion of the guide sleeve It is integrally formed formula structure with guide hole portion.
- 7. cantilever vertical jacking system as claimed in claim 6, it is characterised in that in the slab structure of the rack upper and lower part Side is fixedly connected by connecting rod, and equipped with X-shaped reinforced structure, X-shaped reinforced structure upper end is fixed with upper rack slab structure Connection, lower end are fixedly connected with frame lower slab structure.
- 8. cantilever vertical jacking system as claimed in claim 7, it is characterised in that be equipped with the outside of the piston rod of the hydraulic cylinder Damper, described damper one end are connected with hydraulic cylinder body lower end, and the other end is connected with piston-rod lower end.
- 9. the cantilever vertical jacking system as described in the claims 8, it is characterised in that the damper is spring, spring One end and hydraulic cylinder body lower end elastic connection, the other end and piston-rod lower end elastic connection.
- 10. cantilever vertical jacking system as claimed in claim 9, it is characterised in that described to be fixedly connected as by detachable Fastener achieve a fixed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510052191.0A CN104604372B (en) | 2015-02-02 | 2015-02-02 | A kind of cantilever vertical jacking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510052191.0A CN104604372B (en) | 2015-02-02 | 2015-02-02 | A kind of cantilever vertical jacking system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104604372A CN104604372A (en) | 2015-05-13 |
| CN104604372B true CN104604372B (en) | 2018-04-17 |
Family
ID=53139255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510052191.0A Expired - Fee Related CN104604372B (en) | 2015-02-02 | 2015-02-02 | A kind of cantilever vertical jacking system |
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| Country | Link |
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| CN (1) | CN104604372B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104904335B (en) * | 2015-06-15 | 2017-10-31 | 广西五丰机械有限公司 | A kind of cultivated powder ridge machine of extended pattern pine |
| CN105009714A (en) * | 2015-06-12 | 2015-11-04 | 李深文 | Method for connecting powder ridge apparatus to tractor |
| CN104938052B (en) * | 2015-06-12 | 2017-10-31 | 广西五丰机械有限公司 | A kind of method of quick-replaceable powdery ridge case |
| CN104938054A (en) * | 2015-06-12 | 2015-09-30 | 李深文 | Lifting mechanism for powder ridge device |
| CN104942580B (en) * | 2015-06-12 | 2018-01-09 | 广西五丰机械有限公司 | A kind of assemble method of powdery ridge device |
| CN104942542B (en) * | 2015-06-12 | 2017-11-28 | 广西五丰机械有限公司 | A kind of manufacture assembly method of powdery ridge box assembly |
| CN105413088B (en) * | 2015-12-11 | 2019-10-18 | 南京林业大学 | Forest fire protection plough plough |
| CN108271444A (en) * | 2018-02-05 | 2018-07-13 | 许文红 | A kind of agricultural cultivation scarification equipment device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2850894A1 (en) * | 1977-11-30 | 1979-05-31 | Patent Concern Nv | TILLAGE MACHINE |
| CN2530423Y (en) * | 2002-02-10 | 2003-01-15 | 李善文 | Waterlogging-preventing multi-row Chinese yam durdock ditcher |
| CN1685782A (en) * | 2005-04-18 | 2005-10-26 | 李善文 | Black clay tuber crop ditch soil loosening mechine |
| CN2914612Y (en) * | 2006-03-17 | 2007-06-27 | 王本平 | Scarifier for raising Chinese yam |
| CN201878501U (en) * | 2010-11-19 | 2011-06-29 | 于伯祥 | Deep plowing machine for greenhouses |
| CN201919311U (en) * | 2010-12-16 | 2011-08-10 | 关华强 | Dry farming deep loosening ditcher |
| CN204796056U (en) * | 2015-02-02 | 2015-11-25 | 李阳铭 | Cantilever vertical lift system |
-
2015
- 2015-02-02 CN CN201510052191.0A patent/CN104604372B/en not_active Expired - Fee Related
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|---|---|
| CN104604372A (en) | 2015-05-13 |
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Effective date of registration: 20160519 Address after: 537500 Rongxian County Economic Development Zone, the Guangxi Zhuang Autonomous Region Industrial Road, No. 87 (Guangxi Feng Machinery Co., Ltd.) five Applicant after: GUANGXI WUFENG MACHINERY Co.,Ltd. Address before: Yuzhou District People's road 537000 the Guangxi Zhuang Autonomous Region Yulin City No. 398 Applicant before: Li Yangming |
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Granted publication date: 20180417 Termination date: 20220202 |