CN203237283U - Novel hydraulic drive steering system for rice transplanter - Google Patents
Novel hydraulic drive steering system for rice transplanter Download PDFInfo
- Publication number
- CN203237283U CN203237283U CN 201320159113 CN201320159113U CN203237283U CN 203237283 U CN203237283 U CN 203237283U CN 201320159113 CN201320159113 CN 201320159113 CN 201320159113 U CN201320159113 U CN 201320159113U CN 203237283 U CN203237283 U CN 203237283U
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- oil circuit
- links
- rice transplanter
- steering shaft
- oil
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Abstract
The utility model relates to a novel hydraulic drive steering system for a rice transplanter. The novel hydraulic drive steering system comprises a left guide wheel and a right guide wheel, wherein each guide wheel is provided with a guide wheel drive motor; the guide wheel drive motors are connected with hydraulic oil paths of a whole vehicle; the wheel axle of each guide wheel is connected with a steering vertical column which is rotatably connected with the frame of the rice transplanter; a steering rocker arm is arranged on each steering vertical column; the steering rocker arms are inclined backwards when the guide wheels are in a forward position and form an included angle of 81-72 degrees with the axle wire of the frame of the rice transplanter; two hydraulic cylinders which are roatably connected with the frame of the rice transplanter are respectively arranged on the left and right sides of the frame of the rice transplanter; piston rods of the hydraulic cylinders are respectively connected with the corresponding steering rocker arms; and the hydraulic cylinders at the left and right sides are symmetric about the axle wire of the frame of the rice transplanter. The novel hydraulic drive steering system for the rice transplanter has the characteristics that the steering is convenient and smooth, and the structure is simple.
Description
Technical field
The utility model relates to a kind of rice transplanter, especially relates to a kind of hydraulically powered rice transplanter.
Background technology
The full hydraulic drive rice transplanter is a novel field, this had not found to have this type of product in the market, the contriver has developed a kind of all-hydraulic rice transplanter recently, and the driving of its wheel is finished by CD-ROM drive motor, and it turns to by the column that turns to of Hydraulic Elements drive track adjusting wheel and finishes.But, existing forward method is when rotating to the left, the Hydraulic Elements in left side drive the track adjusting wheel angle that turns left, the Hydraulic Elements on right side rotate corresponding angle simultaneously, but follow according to existing Vehicular turn principle, make its rotation more smooth and easy, the rotational angle of two track adjusting wheels is different, wherein the rotational angle of off-side wheel less (because its turn radius relative inner is taken turns larger).According to prior art, need Hydraulic Elements to realize the different corner of two track adjusting wheels by finishing different strokes.Therefore, the structure of this hydrostatic steering system is comparatively complicated.
Summary of the invention
The utility model mainly is that to solve prior art existing not to design and the Optimization Experience of the steering swivel system of all-hydraulic rice transplanter, cause the technical matters of the restriction that all-hydraulic rice transplanter is produced, provide a kind of and turn to convenience, smooth and easy, and novel hydraulic simple in structure drives the steering swivel system of rice transplanter.
Above-mentioned technical matters of the present utility model is mainly solved by following technical proposals: a kind of novel hydraulic drives the steering swivel system of rice transplanter, comprise left and right sides track adjusting wheel, it is characterized in that described each track adjusting wheel is provided with the track adjusting wheel CD-ROM drive motor, this track adjusting wheel CD-ROM drive motor links to each other with full car hydraulic circuit, the wheel shaft of described each track adjusting wheel links to each other with turning to column respectively, turn to column and rice transplanter vehicle frame to be rotationally connected, turn to column to be provided with a pitman arm, this pitman arm recedes when track adjusting wheel is in forward location, and consist of 81-72 degree angle with the axis of described rice transplanter vehicle frame, the left and right sides of rice transplanter vehicle frame is respectively equipped with a hydraulic ram that is rotationally connected with it, the piston rod of this hydraulic ram is continuous with corresponding pitman arm respectively, and the hydraulic ram of the left and right sides is symmetrical about the axis of rice transplanter vehicle frame.When the rice transplanter vehicle frame rotates to the left, the hydraulic ram in left side drives the track adjusting wheel angle that turns left, the hydraulic ram on right side drives simultaneously right hand guide wheels and rotates corresponding angle, because pitman arm recedes when track adjusting wheel is in forward location, and consist of 81-72 degree angle with the axis of described rice transplanter vehicle frame, when the length of the length of left side hydraulic ram emersion and right side hydraulic ram indentation is identical, the rotational angle of two track adjusting wheels is different, wherein the rotational angle of off-side wheel is less, and nearside wheel (i.e. left side track adjusting wheel) rotational angle is larger, like this, just can be so that the rotation of rice transplanter vehicle frame be very convenient, smooth and easy, wheel the larger problem of skidding can not occur because of turning to.
As preferably, the described column that turns to comprises steering shaft, the downside of steering shaft links to each other with a track adjusting wheel assembly, the outside of steering shaft is arranged with an adapter sleeve that is used for connecting vehicle frame, be provided with shock absorbing apparatus between adapter sleeve and the steering shaft, the upside of adapter sleeve be provided with one with described steering shaft suitable, can drive steering shaft rotates, and the pitman arm that can slide up and down with respect to steering shaft, described steering shaft inside is provided with vertical oil circuit hole, the lower end in this vertical oil circuit hole links to each other with the track adjusting wheel CD-ROM drive motor, and the upper end links to each other with described full car hydraulic oil by swivel joint respectively.Have a relative stroke that slides up and down between adapter sleeve and the steering shaft, and make it that buffer action can be arranged by shock absorbing apparatus, be beneficial to the traveling comfort that the operator takes.The oil circuit of HM Hydraulic Motor is replaced by vertical oil circuit hole of being located in the steering shaft, and vertically the oil circuit hole links to each other with working connection by swivel joint again, so that it is being installed and is using all more convenient, simple and direct, attractive in appearance.
As preferably, establishing end on the described steering shaft has and described vertical oil circuit corresponding horizontal oil circuit that is connected one by one, the outside of steering shaft is provided with and described horizontal oil circuit oil groove one to one, the top of described steering shaft is provided with a swivel joint, this swivel joint is sheathed on the upper end of steering shaft, and be rotationally connected with steering shaft, swivel joint is provided with and described oil groove oil circuit external tapping one to one.The design of oil groove, so that no matter what angle steering shaft turns to, the oil circuit external tapping all is connected with horizontal oil circuit by this oil groove.
As preferably, be provided with a cushion chamber in the described adapter sleeve, the up and down two ends of cushion chamber be respectively equipped with one with suitable head bearing and the lower bearing of described steering shaft, wherein head bearing and described steering shaft sliding block joint are provided with a recoil spring between the upper and lower bearing.
As preferably, described full car hydraulic circuit comprises that track adjusting wheel drives oil circuit, the back-wheel drive oil circuit, turn to oil circuit and transplanting oil circuit, described track adjusting wheel drives oil circuit and links to each other with two track adjusting wheel CD-ROM drive motor, be provided with a synchronous valve between two track adjusting wheel CD-ROM drive motor, link to each other by an on-off valve between two mouths of this synchronous valve, described back-wheel drive oil circuit links to each other with two back-wheel drive motors, also be provided with synchronous valve between two back-wheel drive motors, also link to each other by an on-off valve between two mouths of this synchronous valve, described transplanting oil circuit links to each other with a transplanting motor, the described oil circuit that turns to comprises that turns to a driving pump, and this turns to driving pump to link to each other with described hydraulic ram.By two track adjusting wheel CD-ROM drive motor and two back-wheel drive motors individual drive wheel separately, form the 4 wheel driven structure, this type of drive very flexibly and power powerful, be conducive to it and adapt to various operating conditions.In normally travelling, described on-off valve is connected, and two mouths of synchronous valve are connected, and synchronous valve is inoperative.But, when about the suffered friction force of relative two wheels not simultaneously, about the rotating speed of two relative CD-ROM drive motor will different (rotating speed of the wheel that friction force is large be slow) this just so that rice transplanting with improper turning occurring, just need to disconnect above-mentioned on-off valve this moment, so that synchronous valve works, by amount, so that the rotating speed of the wheel of the left and right sides is identical, keep straight ahead by the synchronous valve uniform distribution.
As preferably, described f-w-d oil circuit comprises forerunner's pump and a H type three position four-way directional control valve, the oil inlet of this three position four-way directional control valve links to each other with forerunner's pump, and return opening links to each other with the oil inlet end of described transplanting oil circuit, and actuator port links to each other with corresponding synchronous valve; Described back-wheel drive oil circuit comprises a rear-guard pump and a H type three position four-way directional control valve, and the oil inlet of this three position four-way directional control valve links to each other with the rear-guard pump, and return opening links to each other with the oil inlet end of described transplanting oil circuit, and actuator port links to each other with corresponding synchronous valve.No matter above-mentioned three position four-way directional control valve is in forward oil circuit or reverse oil circuit, its oil return is all by the transplanting oil circuit, utilize front and rear wheel to drive the oil return of oil circuit, drive implanting mechanism work, when this three position four-way directional control valve is in meta, because this three position four-way directional control valve is the H type, at this moment, oil-feed and the oil return circuit of front and rear wheel are directly connected, and the front and rear wheel CD-ROM drive motor quits work, at this moment, this hydraulic circuit can drive implanting mechanism work.The oil return that the utility model utilizes front and back wheel to drive oil circuit drives implanting mechanism, has simplified on the one hand the working oil path of implanting mechanism, and on the other hand, this mode has realized the interlock of implanting mechanism and wheel walking, and has guaranteed the proportionate relationship between them.When walk in different road surfaces, can also cut wheel drive or back-wheel drive by the three position four-way directional control valve of adjusting on track adjusting wheel driving oil circuit or the back-wheel drive oil circuit.
As preferably, described full car hydraulic circuit comprises that also transplanting section promotes oil circuit, and transplanting section promotes oil circuit and is provided with a lift pump, and this transplanting section promotes oil circuit and links to each other with elevating ram.Transplanting section need to be according to operation situation adjustment height, and transplanting section need to be improved fully when shifting between the operation plot, and native system is by an oil pump, and namely lift pump drives elevating ram and finishes.
As preferably, described each track adjusting wheel CD-ROM drive motor and back-wheel drive motor are equipped with the by-pass cock of a high low gear, this by-pass cock links to each other with a hydraulic actuating cylinder, this hydraulic actuating cylinder links to each other with a hydraulically powered high/low pressure cut-over valve, this high/low pressure cut-over valve drives port and links to each other with an oil control transfer valve, oil inlet end with the lifting oil circuit of two oil inlet ends of this oil control transfer valve links to each other, and another links to each other with the oil outlet end that turns to oil circuit, track adjusting wheel to drive oil circuit, back-wheel drive oil circuit and transplanting oil circuit.High speed gear is not operation of rice transplanter, and the gear of walking on the road surface, low gear are the gear of rice transplanter when operation.When high/low pressure cut-over valve driving port links to each other with the oil inlet end that promotes oil circuit by oil control transfer valve, can drive the high/low pressure cut-over valve action, and then drive the action of above-mentioned hydraulic actuating cylinder, make it drive high low gear by-pass cock action, so that the front and rear wheel CD-ROM drive motor enters high speed rotating, otherwise, when high/low pressure cut-over valve driving port linked to each other with the oil outlet end that turns to oil circuit, track adjusting wheel to drive oil circuit, back-wheel drive oil circuit and transplanting oil circuit by oil control transfer valve, the front and rear wheel CD-ROM drive motor entered and slowly runs.
The beneficial effect that brings of the present utility model is, it is existing not to design and the Optimization Experience of the steering swivel system of all-hydraulic rice transplanter to have solved prior art, cause the technical matters of the restriction that all-hydraulic rice transplanter is produced, realized a kind ofly turning to conveniently, smooth and easy, and a kind of novel hydraulic simple in structure drives the steering swivel system of rice transplanter.
Description of drawings
Accompanying drawing 1 is structural arrangement scheme drawing of the present utility model;
Accompanying drawing 2 is hydraulic efficiency pressure system scheme drawings of the present utility model;
Accompanying drawing 3 is structural representations that turn to column of the present utility model;
Accompanying drawing 4 is a kind of cutaway views of accompanying drawing 3;
Accompanying drawing 5 is a kind of structural representations at the A-A place of accompanying drawing 3.
The specific embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: shown in Fig. 1-5, the utility model is the steering swivel system that a kind of novel hydraulic drives rice transplanter, comprise left and right sides track adjusting wheel, described each track adjusting wheel is provided with track adjusting wheel CD-ROM drive motor 1, this track adjusting wheel CD-ROM drive motor 1 links to each other with full car hydraulic circuit, full car hydraulic circuit comprises that track adjusting wheel drives oil circuit, the back-wheel drive oil circuit, turn to oil circuit and transplanting oil circuit, described track adjusting wheel drives oil circuit and links to each other with track adjusting wheel CD-ROM drive motor 1, be provided with a synchronous valve 3 between two track adjusting wheel CD-ROM drive motor, link to each other by an on-off valve 21 between two mouths of this synchronous valve 3, described back-wheel drive oil circuit links to each other with two back-wheel drive motors 2, also be provided with synchronous valve 3 between two back-wheel drive motors 2, also link to each other by an on-off valve between two mouths of this synchronous valve.Track adjusting wheel drives oil circuit and comprises forerunner's pump 10 and a H type three position four-way directional control valve 4, and the oil inlet of this three position four-way directional control valve 4 links to each other with forerunner's pump 10, and return opening links to each other with the oil inlet end of described transplanting oil circuit, and actuator port links to each other with described synchronous valve 3; Described back-wheel drive oil circuit comprises a rear-guard pump 11 and a H type three position four-way directional control valve 4, the oil inlet of this three position four-way directional control valve 4 links to each other with rear-guard pump 11, return opening links to each other with the oil inlet end of described transplanting oil circuit, and actuator port links to each other with corresponding synchronous valve.Described transplanting oil circuit links to each other with a transplanting motor 8, and the described oil circuit that turns to comprises that turns to a driving pump 13, and this turns to driving pump 13 to link to each other with described hydraulic ram 9.Full car hydraulic circuit comprises that also transplanting section promotes oil circuit, and transplanting section promotes oil circuit and is provided with a lift pump 12, and this transplanting section promotes oil circuit and links to each other with elevating ram 14.Track adjusting wheel CD-ROM drive motor and back-wheel drive motor are equipped with the by-pass cock 17 of a high low gear, this by-pass cock 17 links to each other with a hydraulic actuating cylinder 18, this hydraulic actuating cylinder 18 links to each other with a hydraulically powered high/low pressure cut-over valve 19, this high/low pressure cut-over valve 19 drives port and links to each other with an oil control transfer valve 16, oil inlet end with the lifting oil circuit of two oil inlet ends of this oil control transfer valve 16 links to each other, and another links to each other with the oil outlet end that turns to oil circuit, track adjusting wheel to drive oil circuit, back-wheel drive oil circuit and transplanting oil circuit.The wheel shaft of described each track adjusting wheel links to each other with turning to column respectively, turn to column to comprise steering shaft 1-2, the downside of steering shaft links to each other with a track adjusting wheel assembly, the outside of steering shaft is arranged with an adapter sleeve 1-3 who is used for connecting vehicle frame, be provided with a cushion chamber 1-31 in the adapter sleeve 1-3, the up and down two ends of cushion chamber 1-31 be respectively equipped with one with suitable head bearing 1-34 and the lower bearing 1-32 of described steering shaft, wherein head bearing 1-34 and described steering shaft 1-2 sliding block joint are provided with a recoil spring 1-33 between the upper and lower bearing.The upside of adapter sleeve 1-3 be provided with one with described steering shaft suitable, can drive steering shaft rotates, and the pitman arm 1-4 that can slide up and down with respect to steering shaft, described steering shaft inside is provided with vertical oil circuit hole 1-6, the lower end of this vertical oil circuit hole 1-6 links to each other with track adjusting wheel CD-ROM drive motor 1, establishing end on the steering shaft has and described vertical oil circuit corresponding horizontal oil circuit 1-7 that is connected one by one, the outside of steering shaft is provided with the oil groove 1-8 one to one with described horizontal oil circuit 1-7, the top of described steering shaft is provided with a swivel joint 1-5, this swivel joint 1-5 is sheathed on the upper end of steering shaft, and be rotationally connected with steering shaft, swivel joint is provided with and described oil groove oil circuit external tapping 1-51 one to one, drives oil circuit by this oil circuit external tapping and track adjusting wheel and links to each other.Pitman arm 1-4 recedes when track adjusting wheel is in forward location, and consist of 81-72 degree angle with the axis of described rice transplanter vehicle frame, the left and right sides of rice transplanter vehicle frame is respectively equipped with a described hydraulic ram 9 that is rotationally connected with it, the piston rod of this hydraulic ram 9 is continuous with corresponding pitman arm 1-4 respectively, and the hydraulic ram of the left and right sides is symmetrical about the axis of rice transplanter vehicle frame.
When the rice transplanter vehicle frame rotates to a side, inboard hydraulic ram drives the track adjusting wheel angle that turns to the inside, the hydraulic ram in the outside drives simultaneously outside track adjusting wheel and rotates corresponding angle, because pitman arm recedes when track adjusting wheel is in forward location, and consist of 81-72 degree angle with the axis of described rice transplanter vehicle frame, when the length of the length of inboard hydraulic ram emersion and outside hydraulic ram indentation is identical, the rotational angle of two track adjusting wheels is different, wherein the rotational angle of off-side wheel is less, and nearside wheel (i.e. left side track adjusting wheel) rotational angle is larger.When the angle of two track adjusting wheels rotations meets Ackerman principle, just can be so that the rotation of rice transplanter vehicle frame to be very convenient, smooth and easy, wheel the larger problem of skidding can not occur because of turning to.
So the utlity model has turn to conveniently, smooth and easy, and the feature such as simple in structure.
Claims (8)
1. a novel hydraulic drives the steering swivel system of rice transplanter, comprise left and right sides track adjusting wheel, it is characterized in that described each track adjusting wheel is provided with the track adjusting wheel CD-ROM drive motor, this track adjusting wheel CD-ROM drive motor links to each other with full car hydraulic circuit, the wheel shaft of described each track adjusting wheel links to each other with turning to column respectively, turn to column and rice transplanter vehicle frame to be rotationally connected, turn to column to be provided with a pitman arm, this pitman arm recedes when track adjusting wheel is in forward location, and consist of 81-72 degree angle with the axis of described rice transplanter vehicle frame, the left and right sides of rice transplanter vehicle frame is respectively equipped with a hydraulic ram that is rotationally connected with it, the piston rod of this hydraulic ram is continuous with corresponding pitman arm respectively, and the hydraulic ram of the left and right sides is symmetrical about the axis of rice transplanter vehicle frame.
2. a kind of novel hydraulic according to claim 1 drives the steering swivel system of rice transplanter, it is characterized in that the described column that turns to comprises steering shaft, the downside of steering shaft links to each other with a track adjusting wheel assembly, the outside of steering shaft is arranged with an adapter sleeve that is used for connecting vehicle frame, be provided with shock absorbing apparatus between adapter sleeve and the steering shaft, the upside of adapter sleeve be provided with one with described steering shaft suitable, can drive steering shaft rotates, and the pitman arm that can slide up and down with respect to steering shaft, described steering shaft inside is provided with vertical oil circuit hole, the lower end in this vertical oil circuit hole links to each other with the track adjusting wheel CD-ROM drive motor, and the upper end links to each other with described full car hydraulic circuit by swivel joint respectively.
3. a kind of novel hydraulic according to claim 2 drives the steering swivel system of rice transplanter, it is characterized in that described steering shaft on establish end and have and described vertical oil circuit corresponding horizontal oil circuit that is connected one by one, the outside of steering shaft is provided with and described horizontal oil circuit oil groove one to one, the top of described steering shaft is provided with a swivel joint, this swivel joint is sheathed on the upper end of steering shaft, and be rotationally connected with steering shaft, swivel joint is provided with and described oil groove oil circuit external tapping one to one.
According to claim 2 or 3 described a kind of novel hydraulics drive the steering swivel system of rice transplanters, it is characterized in that being provided with in the described adapter sleeve cushion chamber, the up and down two ends of cushion chamber be respectively equipped with one with suitable head bearing and the lower bearing of described steering shaft, wherein head bearing and described steering shaft sliding block joint are provided with a recoil spring between the upper and lower bearing.
According to claim 1 and 2 or 3 described a kind of novel hydraulics drive the steering swivel system of rice transplanters, it is characterized in that described full car hydraulic circuit comprises the f-w-d oil circuit, the back-wheel drive oil circuit, turn to oil circuit and transplanting oil circuit, described f-w-d oil circuit links to each other with two track adjusting wheel CD-ROM drive motor, be provided with a synchronous valve between two track adjusting wheel CD-ROM drive motor, link to each other by an on-off valve between two mouths of this synchronous valve, described back-wheel drive oil circuit links to each other with two back-wheel drive motors, also be provided with synchronous valve between two back-wheel drive motors, also link to each other by an on-off valve between two mouths of this synchronous valve, described transplanting oil circuit links to each other with a transplanting motor, the described oil circuit that turns to comprises that turns to a driving pump, and this turns to driving pump to link to each other with described hydraulic ram.
6. a kind of novel hydraulic according to claim 5 drives the steering swivel system of rice transplanter, it is characterized in that described f-w-d oil circuit comprises forerunner's pump and a H type three position four-way directional control valve, the oil inlet of this three position four-way directional control valve links to each other with forerunner's pump, return opening links to each other with the oil inlet end of described transplanting oil circuit, and actuator port links to each other with corresponding synchronous valve; Described back-wheel drive oil circuit comprises a rear-guard pump and a H type three position four-way directional control valve, and the oil inlet of this three position four-way directional control valve links to each other with the rear-guard pump, and return opening links to each other with the oil inlet end of described transplanting oil circuit, and actuator port links to each other with corresponding synchronous valve.
7. a kind of novel hydraulic according to claim 6 drives the steering swivel system of rice transplanter, it is characterized in that described full car hydraulic circuit comprises that also transplanting section promotes oil circuit, transplanting section promotes oil circuit and is provided with a lift pump, and this transplanting section promotes oil circuit and links to each other with elevating ram.
8. a kind of novel hydraulic of stating according to claim 7 drives the steering swivel system of rice transplanter, it is characterized in that described each track adjusting wheel CD-ROM drive motor and back-wheel drive motor are equipped with the by-pass cock of a high low gear, this by-pass cock links to each other with a hydraulic actuating cylinder, this hydraulic actuating cylinder links to each other with a hydraulically powered high/low pressure cut-over valve, this high/low pressure cut-over valve drives port and links to each other with an oil control transfer valve, one of two oil inlet end of this oil control transfer valve link to each other with the oil inlet end that promotes oil circuit, another and turn to oil circuit, the f-w-d oil circuit, the oil outlet end of back-wheel drive oil circuit and transplanting oil circuit links to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320159113 CN203237283U (en) | 2013-04-01 | 2013-04-01 | Novel hydraulic drive steering system for rice transplanter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320159113 CN203237283U (en) | 2013-04-01 | 2013-04-01 | Novel hydraulic drive steering system for rice transplanter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203237283U true CN203237283U (en) | 2013-10-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320159113 Withdrawn - After Issue CN203237283U (en) | 2013-04-01 | 2013-04-01 | Novel hydraulic drive steering system for rice transplanter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203237283U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103158764A (en) * | 2013-04-01 | 2013-06-19 | 莱恩农业装备有限公司 | Steering system of hydraulic driven rice transplanter |
| CN104058006A (en) * | 2014-06-17 | 2014-09-24 | 宁波如意股份有限公司 | Vehicle transverse running steering mechanism |
| CN114954551A (en) * | 2022-08-02 | 2022-08-30 | 秦皇岛优益创联特种车辆制造有限公司 | Power bogie of highway-railway transport vehicle |
-
2013
- 2013-04-01 CN CN 201320159113 patent/CN203237283U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103158764A (en) * | 2013-04-01 | 2013-06-19 | 莱恩农业装备有限公司 | Steering system of hydraulic driven rice transplanter |
| CN103158764B (en) * | 2013-04-01 | 2016-02-03 | 莱恩农业装备有限公司 | The steering swivel system of hydraulic driven rice transplanter |
| CN104058006A (en) * | 2014-06-17 | 2014-09-24 | 宁波如意股份有限公司 | Vehicle transverse running steering mechanism |
| CN114954551A (en) * | 2022-08-02 | 2022-08-30 | 秦皇岛优益创联特种车辆制造有限公司 | Power bogie of highway-railway transport vehicle |
| CN114954551B (en) * | 2022-08-02 | 2022-11-18 | 秦皇岛优益创联特种车辆制造有限公司 | Power bogie of highway-railway transport vehicle |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131016 Effective date of abandoning: 20160203 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |