CN205040191U - Three -point linkage and have this three -point linkage's agricultural vehicle - Google Patents
Three -point linkage and have this three -point linkage's agricultural vehicle Download PDFInfo
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- CN205040191U CN205040191U CN201520758650.2U CN201520758650U CN205040191U CN 205040191 U CN205040191 U CN 205040191U CN 201520758650 U CN201520758650 U CN 201520758650U CN 205040191 U CN205040191 U CN 205040191U
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- point linkage
- lift arm
- agricultural vehicle
- installing rack
- rotationally connected
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- 239000000725 suspension Substances 0.000 claims abstract description 24
- 238000003466 welding Methods 0.000 claims description 4
- 238000012271 agricultural production Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 230000003028 elevating effect Effects 0.000 abstract 2
- 230000001737 promoting effect Effects 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000009313 farming Methods 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000003971 tillage Methods 0.000 description 1
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- Lifting Devices For Agricultural Implements (AREA)
Abstract
The utility model discloses a three -point linkage and have this three -point linkage's agricultural vehicle can articulate several work machinery, including hanging mounting bracket, elevating gear, driver part, elevating gear is including being used for articulating the last flying piece on the upper portion of operation machinery and the lower suspension group who is used for articulating the lower part of operation machinery, down suspension group including the symmetry set up and the one end pin joint in hang the left and right sides lift arm on the mounting bracket, control fixedly connected with crossbeam between the lift arm, the drive end of driver part rotate connect in the crossbeam. The problem of complicated and the easy technique damaged of appearing of prior art's three -point linkage structure is solved, have this three -point linkage's agricultural vehicle flexibility easy and simple to handle, stability is good, can carry out multiple agricultural production.
Description
Technical field
The utility model relates to agricultural machinery technological field, is specifically related to a kind ofly mount the three point linkage of several work machinery and have the agricultural vehicle of this three point linkage.
Background technology
At present, the Work machine on market is all be fixedly hinged on agricultural vehicle chassis, and agricultural vehicle can only mount single Work machine.Along with the deep development of China's agricultural, people put forward higher requirement to the performance of agricultural machinery, function, and a tractor serves several purposes, one-machine-multi-function are the active demands of peasant household.
For this reason, Chinese patent literature CN102845154A discloses a kind of rear three-point suspension device of multifunctional special vehicle, disclose this rearmounted three-point linkage mounting bracket in its specification to connect with the added left-right longeron of Multifunctional vehicle special, promote rotating shaft is arranged on mounting bracket top by the shaft bearing seat of two on mounting bracket, lifting power arm and two, left and right lift arm are fastened on by spline or key and promote in rotating shaft, left and right two raising rod one end and lift arm hinged, the other end and two, left and right lower link are hinged, cylinder block and cylinder support hinged, the upper end of cylinder piston rod is hinged with the lifting power arm promoted in rotating shaft, one end of upper connecting rod is hinged with the upper connecting rod bearing promoted in rotating shaft, lower link one end and loading space rear support axle sleeve hinged, the other end of upper connecting rod and lower link is hinged with the bearing of Work machine respectively.When cylinder piston rod be in eject position time, Work machine lands and can carry out operation, when Work machine needs to lift, cylinder piston rod is retracted, and drives lifting power arm to be rotated counterclockwise, lifting rotating shaft is driven to be rotated counterclockwise, promoting rotating shaft drives left and right lift arm to rotate again, and lift arm drives left and right raising rod to move upward together, thus drives two lower links in left and right to move upward together, left and right lower link drives Work machine upwards to lift again, thus realizes Work machine and leave ground.
Although the rearmounted three-point linkage of the prior art achieves Multifunctional vehicle special a tractor serves several purposes, one-machine-multi-function object, but there is following problem in it: 1 in actual use, in the prior art, landing and lifting of Work machine is driven by cylinder piston rod to promote power arm rotation, promoting power arm drives lifting rotating shaft to rotate, promoting rotating shaft utilizes rotation torque to drive left and right lift arm to rotate, and then drive two lower link actions to realize landing and lifting action of Work machine, but Work machine weight is larger, directly drive left and right lift arm rotation required torque larger by promoting rotating shaft, make the attachment force between lifting rotating shaft and left and right lift arm larger, after long-time use, damaging easily appears in junction, reduce three point linkage functional reliability, affect agricultural production, 2, in the prior art, directly driving left and right lift arm to rotate required torque comparatively greatly by promoting rotating shaft, increasing the power consumption of oil cylinder, causing the increase of production operation cost, 3, in the prior art, do not provide the position limitation protection measure of three point linkage, be unfavorable for stability when three point linkage works.
Utility model content
For this reason, technical problem to be solved in the utility model is that damaging easily appears in the lifting rotating shaft of the three point linkage of prior art and lift arm junction, cause the problem that service life is short, thus proposition one is not easy to occur damaging, the three point linkage of long service life.
A kind of agricultural vehicle with above-mentioned three point linkage is provided further.
For solving the problems of the technologies described above, the utility model have employed following technical scheme:
A kind of three point linkage, comprising:
Hang installing rack, be suitable for being arranged on agricultural vehicle chassis;
Elevator, comprise the upper hanger on the top for mounting Work machine and the lower suspension assembly for the bottom that mounts Work machine, described lower suspension assembly comprises and to be symmetrical arranged and one end is articulated in the left and right lift arm on described suspension installing rack, and drives by the other end of described left and right lift arm with the linkage unit driving described Work machine action;
Driver part, moves back and forth for driving described elevator;
Be fixedly connected with crossbeam between the lift arm of described left and right, the drive end of described driver part is rotationally connected with described crossbeam.
Preferably, described crossbeam is positioned at the one end away from described left and right lift arm and the pivot joint of described suspension installing rack.
Preferably, one end of described left and right lift arm is arranged in the revolving bed at suspension installing rack top by rotating shaft.
Preferably, described upper hanger is that one end is rotationally connected with the upper hitch point hanging installing rack, and the other end is suitable for the upper connecting rod be rotationally connected with the upper bracket of Work machine.
Preferably, described linkage unit comprises the left and right lower link corresponding to described left and right lift arm, lower link one end, described left and right is suitable for being rotationally connected with and hangs on the lower hitch point of installing rack or the two longeron bearings on agricultural vehicle chassis, and the other end is suitable for being rotationally connected with on two undersettings of described Work machine; Described linkage unit also comprises the left and right raising rod be rotationally connected with between described left and right lift arm and described left and right lower link.
Preferably, limiting and protecting device is set between agricultural vehicle chassis and left and right lower link.
Preferably, described limiting and protecting device is limit pull rod.
Preferably, described driver part is hydraulic jack, and described hydraulic jack one end is suitable for being rotationally connected with on the cylinder bracket on agricultural vehicle chassis, and the cylinder support between the other end and left and right lift arm on crossbeam is rotationally connected.
A kind of agricultural vehicle, comprises according to above-mentioned three point linkage.
Preferably, described three point linkage is installed on the rear end on agricultural vehicle chassis.
Preferably, described three point linkage suspension installing rack welding or bolt connecting mode be arranged between described agricultural vehicle chassis rear cross beam and two longerons.
Preferably, described agricultural vehicle is caterpillar band self-propelled rotovator.
Technique scheme of the present utility model has the following advantages compared to existing technology:
1, three point linkage of the present utility model, directly force on the crossbeam between the lift arm of left and right by driver part, make left and right lift arm increase or fall, and then drive Work machine lift or fall by the linkage unit linked with it, in the utility model, left and right lift arm only plays the effect of pivot point with the pivoting point hanging installing rack, and non-immediate force part, therefore, relative to prior art, the utility model avoids left and right lift arm and holds flimsy problem with the pivoting point place hanging installing rack, improve the reliability of three point linkage work, the efficiency of effective guarantee agricultural production.
2, three point linkage of the present utility model, crossbeam is arranged on away from left and right lift arm and the one end hanging installing rack pivot joint, namely crossbeam is more close to linkage unit, thus, driver part only needs to apply less active force and can realize lift arm and affect linkage unit to move, thus decrease the operating power consumption of driver part, save the cost of production operation.
3, in three point linkage of the present utility model, lower link directly controls rising and the decline of Work machine; between agricultural vehicle chassis and left and right lower link, limiting and protecting device is set; the amplitude range that Work machine rises and declines can not only be controlled; and strengthen the bearing capacity of the larger weight Work machine of suspension arrangement mounting, improve the stability of three point linkage entirety.
Accompanying drawing explanation
In order to make content of the present utility model be more likely to be clearly understood, below according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail, wherein
Fig. 1 is the structural representation of the utility model three point linkage;
Fig. 2 is the vertical view of Fig. 1.
In figure, Reference numeral is expressed as: 1-hangs installing rack; 11-revolving bed; The upper hitch point of 12-; Hitch point under 13-; 14-rotating shaft; 2-agricultural vehicle chassis; The left lift arm of 31-; The right lift arm of 32-; 4-driver part; 5-crossbeam; 6-upper connecting rod; 71-lower-left pull bar; 72-bottom right pull bar; The left raising rod of 81-; The right raising rod of 82-; 9-limiting and protecting device.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the utility model, is not limited to the utility model.
Embodiment 1
As shown in Figure 1, 2, the present embodiment provide a kind of be suitable for agricultural vehicle with the use of three point linkage, this three point linkage comprises: hang installing rack 1, elevator and driver part 4.Wherein, described suspension installing rack 1 comprises two columns be oppositely arranged, and two root posts are suitable for being fixed on agricultural vehicle chassis 2, and column preferably welds with the fixed form on agricultural vehicle chassis 2, but is not limited to welding.Described elevator comprises the upper hanger on the top for mounting Work machine and the lower suspension assembly for the bottom that mounts Work machine.The upper hanger of the present embodiment is upper connecting rod 6, and one end of described upper connecting rod 6 uses bearing pin hinged with the upper hitch point hanging installing rack 1, and the other end is suitable for being rotationally connected with the upper bracket of Work machine.The lower suspension assembly of the present embodiment comprises lift arm and linkage unit, wherein lift arm comprises left lift arm 31 and right lift arm 32, described left lift arm 31 be symmetrical arranged with described right lift arm 32 and one end of two lift arms be arranged on by rotating shaft 14 hang installing rack 1 top revolving bed 11 in, described linkage unit comprises the lower-left pull bar 71 corresponding to described left lift arm 31 and the bottom right pull bar 72 corresponding to described right lift arm 32, one end of two lower links utilizes hinge on the lower hitch point hanging installing rack 1 or one end of two lower links utilizes bearing pin to be rotationally connected with on the two longeron bearings on agricultural vehicle chassis 2, the two lower link other ends are suitable for being rotationally connected with the undersetting of two of described Work machine, described linkage unit also comprises left raising rod 81 and right raising rod 82, the two ends of described left raising rod 81 are rotationally connected with on described left lift arm 31 and described lower-left pull bar 71 respectively, the two ends of described right raising rod 82 are rotationally connected with on described right lift arm 32 and described bottom right pull bar 72 respectively.
In the present embodiment, for driving the reciprocating described driver part 4 of described elevator to be preferably hydraulic jack, one end of described hydraulic jack is rotatably connected on the cylinder bracket on agricultural vehicle chassis 2; Easily occur after a long time use damaging with the connecting portion hanging described rotating shaft 14 on installing rack to prevent two lift arms, the piston rod of the described hydraulic jack other end directly acts on the crossbeam 5 between described left lift arm 31 and right lift arm 32, is specifically set to: the piston rod of described hydraulic jack and the middle part of described crossbeam 5 are rotationally connected.More than be rotationally connected preferably hinged.
Directly force on the crossbeam 5 between the lift arm of left and right by driver part, make left and right lift arm increase or fall, and then drive Work machine lift or fall by the linkage unit linked with it, in the present embodiment, left and right lift arm only plays the effect of pivot point with the pivoting point hanging installing rack, and non-immediate force part, therefore, avoid left and right lift arm and hold flimsy problem with the pivoting point place hanging installing rack, improve the reliability of three point linkage work, effectively ensure the efficiency of agricultural production.
The three point linkage of the present embodiment can hang installs several work machinery, such as rotary tillage machine, seeding machinary, harvesting equipment etc.By the three point linkage of the present embodiment, achieve the effect of agricultural vehicle a tractor serves several purposes, one-machine-multi-function.
Further, crossbeam 5 is arranged on away from left and right lift arm 3 one end with the pivot joint of described suspension installing rack 1 by the present embodiment.Crossbeam is arranged on away from left and right lift arm and the one end hanging installing rack pivot joint, namely crossbeam is more close to linkage unit, thus, driver part only needs to apply less active force and can realize lift arm and affect linkage unit to move, thus decrease the operating power consumption of driver part, save the cost of production operation.
Further, arrange limiting and protecting device 9 between agricultural vehicle chassis 2 and left and right lower link 7, in the present embodiment, limiting and protecting device 9 adopts limit pull rod.Work machine can be controlled like this in the process risen and decline, keep certain amplitude range.In addition, because one end of limit pull rod is connected with agricultural vehicle chassis 2, strengthen the bearing capacity of the larger weight Work machine of suspension arrangement mounting, improve the stability of three point linkage.
Below in conjunction with accompanying drawing, the course of work of the three point linkage of the present embodiment is described:
As depicted in figs. 1 and 2, when the Work machine be articulated on three point linkage will be made to mention, hydraulic control valve handle on operation agricultural vehicle, hydraulic cylinder piston rod is stretched out, the crossbeam 5 promoting to be attached thereto moves upward, left and right lift arm 31 and 32 is rotated counterclockwise around described suspension installing rack for pivot point with described rotating shaft 14 thus, and then left and right lift arm 31 and 32 drives left and right raising rod 71 and 72 to move upward simultaneously, described left and right raising rod 71 and 72 drives described left and right lower link 81 and 82 to move upward simultaneously, the left and right lower link 81 and 82 moved upward drives Work machine upwards to promote and leaves ground.
When the Work machine be articulated on three point linkage will be made to decline, hydraulic control valve handle on operation agricultural vehicle, hydraulic cylinder piston rod is retracted, the crossbeam 5 be attached thereto is driven to move downward, left and right lift arm 31 and 32 turns clockwise around described suspension installing rack for pivot point with described rotating shaft 14, the other end of described left and right lift arm 31 and 32 drives described left and right raising rod 71 and 72 to move downward, and then drive described left and right lower link 81 and 82 to move downward, finally realize Work machine and carry out ground farming from height point whereabouts.
Embodiment 2
In order to realize multifunctional agriculture operation, the utility model also provides a kind of embodiment of agricultural vehicle.
The present embodiment agricultural vehicle comprises the three point linkage in embodiment 1, and the suspension installing rack 1 of this three point linkage is fixedly connected with and is arranged between agricultural vehicle chassis 2 crossbeam and two longerons, described in be fixedly connected with mode can be welding or bolt connecting mode.
Agricultural vehicle is preferably caterpillar band self-propelled rotovator, can certainly be the agricultural vehicle of other types.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among the protection domain that the utility model creates.
Claims (12)
1. a three point linkage, comprising:
Hang installing rack (1), be suitable for being arranged on agricultural vehicle chassis (2);
Elevator, comprise the upper hanger on the top for mounting Work machine and the lower suspension assembly for the bottom that mounts Work machine, described lower suspension assembly comprises and to be symmetrical arranged and one end is articulated in the left and right lift arm (31 on described suspension installing rack (1); 32), and by described left and right lift arm (31; 32) the other end drives with the linkage unit driving described Work machine action;
Driver part (4), moves back and forth for driving described elevator;
It is characterized in that: described left and right lift arm (31; 32) be fixedly connected with crossbeam (5) between, the drive end of described driver part (4) is rotationally connected with described crossbeam (5).
2. three point linkage according to claim 1, is characterized in that: described crossbeam (5) is positioned at away from described left and right lift arm (31; 32) with one end of described suspension installing rack (1) pivot joint.
3. three point linkage according to claim 1, is characterized in that: described left and right lift arm (31; 32) one end is arranged in the revolving bed (11) at suspension installing rack (1) top by rotating shaft (14).
4. three point linkage according to claim 1, it is characterized in that: described upper hanger is that one end is rotationally connected with the upper hitch point (12) hanging installing rack (1), and the other end is suitable for the upper connecting rod (6) be rotationally connected with the upper bracket of Work machine.
5. the three point linkage according to any one of claim 1-4, is characterized in that: described linkage unit comprises corresponding to described left and right lift arm (31; 32) left and right lower link (71; 72), described left and right lower link (71; 72) one end is suitable for being rotationally connected with and hangs on the lower hitch point (13) of installing rack (1) or the two longeron bearings of agricultural vehicle chassis (2), and the other end is suitable for being rotationally connected with on two undersettings of described Work machine; Described linkage unit also comprises and is rotationally connected with described left and right lift arm (31; 32) with described left and right lower link (71; 72) the left and right raising rod (81 between; 82).
6. three point linkage according to claim 5, is characterized in that: at agricultural vehicle chassis (2) and left and right lower link (71; 72) limiting and protecting device (9) is set between.
7. three point linkage according to claim 6, is characterized in that: described limiting and protecting device (9) is limit pull rod.
8. the three point linkage according to any one of claim 1-4, it is characterized in that: described driver part (4) is hydraulic jack, described hydraulic jack one end is suitable for being rotationally connected with on the cylinder bracket of agricultural vehicle chassis (2), the other end and left and right lift arm (31; 32) cylinder support between on crossbeam (5) is rotationally connected.
9. an agricultural vehicle, is characterized in that: comprise the three point linkage according to any one of claim 1-8.
10. agricultural vehicle according to claim 9, is characterized in that: described three point linkage is installed on the rear end of agricultural vehicle chassis (2).
11. agricultural vehicles according to claim 10, is characterized in that: the suspension installing rack (1) of described three point linkage is arranged between described agricultural vehicle chassis (2) rear cross beam (5) and two longerons with welding or bolt connecting mode.
12. agricultural vehicles according to any one of claim 9-11, it is characterized in that, described agricultural vehicle is caterpillar band self-propelled rotovator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520758650.2U CN205040191U (en) | 2015-09-28 | 2015-09-28 | Three -point linkage and have this three -point linkage's agricultural vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520758650.2U CN205040191U (en) | 2015-09-28 | 2015-09-28 | Three -point linkage and have this three -point linkage's agricultural vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN205040191U true CN205040191U (en) | 2016-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520758650.2U Expired - Fee Related CN205040191U (en) | 2015-09-28 | 2015-09-28 | Three -point linkage and have this three -point linkage's agricultural vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205040191U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106385820A (en) * | 2016-09-29 | 2017-02-15 | 深圳市中惠农装科技有限公司 | Three-point suspension device for agricultural equipment |
| CN106664857A (en) * | 2016-12-12 | 2017-05-17 | 山东海山机械制造有限公司 | Suspension device for agricultural machines |
| CN107063651A (en) * | 2016-12-07 | 2017-08-18 | 北京农业智能装备技术研究中心 | A kind of full landform excitation test platform in tractor suspension system farmland |
| CN107182326A (en) * | 2017-07-14 | 2017-09-22 | 无锡福尔沃坂工业机械有限公司 | A kind of suspension transmission mechanism of tractor dynamic power agricultural machinery and implement |
| CN108021022A (en) * | 2018-01-31 | 2018-05-11 | 吉林省农业机械研究院 | A kind of rear-tractor three-link hitch and its control method |
| CN110959325A (en) * | 2019-12-19 | 2020-04-07 | 江苏农林职业技术学院 | Lateral movement type three-point suspension device |
| CN111066400A (en) * | 2019-12-20 | 2020-04-28 | 盐城可理斯机械制造有限公司 | Rotary cultivator three-point mounted frame |
| CN113068469A (en) * | 2021-04-09 | 2021-07-06 | 信阳农林学院 | Multifunctional working machine for reclamation |
-
2015
- 2015-09-28 CN CN201520758650.2U patent/CN205040191U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106385820A (en) * | 2016-09-29 | 2017-02-15 | 深圳市中惠农装科技有限公司 | Three-point suspension device for agricultural equipment |
| CN107063651A (en) * | 2016-12-07 | 2017-08-18 | 北京农业智能装备技术研究中心 | A kind of full landform excitation test platform in tractor suspension system farmland |
| CN106664857A (en) * | 2016-12-12 | 2017-05-17 | 山东海山机械制造有限公司 | Suspension device for agricultural machines |
| CN107182326A (en) * | 2017-07-14 | 2017-09-22 | 无锡福尔沃坂工业机械有限公司 | A kind of suspension transmission mechanism of tractor dynamic power agricultural machinery and implement |
| CN107182326B (en) * | 2017-07-14 | 2023-08-08 | 无锡福阪农机科技有限公司 | Suspension transmission mechanism of tractor power agricultural implement |
| CN108021022A (en) * | 2018-01-31 | 2018-05-11 | 吉林省农业机械研究院 | A kind of rear-tractor three-link hitch and its control method |
| CN108021022B (en) * | 2018-01-31 | 2024-02-20 | 吉林省农业机械研究院 | Rear-mounted three-point suspension device of tractor and control method thereof |
| CN110959325A (en) * | 2019-12-19 | 2020-04-07 | 江苏农林职业技术学院 | Lateral movement type three-point suspension device |
| CN110959325B (en) * | 2019-12-19 | 2024-05-24 | 江苏农林职业技术学院 | Side-shifting type three-point suspension device |
| CN111066400A (en) * | 2019-12-20 | 2020-04-28 | 盐城可理斯机械制造有限公司 | Rotary cultivator three-point mounted frame |
| CN111066400B (en) * | 2019-12-20 | 2021-08-24 | 盐城可理斯机械制造有限公司 | Rotary cultivator three-point mounted frame |
| CN113068469A (en) * | 2021-04-09 | 2021-07-06 | 信阳农林学院 | Multifunctional working machine for reclamation |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200416 Address after: 324200 No.5, Lvhui Avenue, Jinchuan street, Changshan County, Quzhou City, Zhejiang Province Patentee after: Zhejiang Onda Agricultural Equipment Co.,Ltd. Address before: 324299 Zhejiang Quzhou green industrial agglomeration area Changshan area Patentee before: ZHEJIANG YUMA MACHINERY Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160224 |