CN110959325A - Lateral movement type three-point suspension device - Google Patents
Lateral movement type three-point suspension device Download PDFInfo
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- CN110959325A CN110959325A CN201911314972.7A CN201911314972A CN110959325A CN 110959325 A CN110959325 A CN 110959325A CN 201911314972 A CN201911314972 A CN 201911314972A CN 110959325 A CN110959325 A CN 110959325A
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- point suspension
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- 239000000725 suspension Substances 0.000 title claims abstract description 120
- 230000007246 mechanism Effects 0.000 claims abstract description 72
- 230000003287 optical effect Effects 0.000 claims abstract description 37
- 239000003921 oil Substances 0.000 claims description 47
- 239000010720 hydraulic oil Substances 0.000 claims description 9
- 241000196324 Embryophyta Species 0.000 description 7
- 238000009313 farming Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 241000238631 Hexapoda Species 0.000 description 2
- 241000607479 Yersinia pestis Species 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000003971 tillage Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009328 dry farming Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B59/00—Devices specially adapted for connection between animals or tractors and agricultural machines or implements
- A01B59/06—Devices specially adapted for connection between animals or tractors and agricultural machines or implements for machines mounted on tractors
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- Mechanical Engineering (AREA)
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- Environmental Sciences (AREA)
- Agricultural Machines (AREA)
Abstract
The invention discloses a lateral-moving type three-point suspension device which comprises side plates, sliding optical axes, a support, a lateral-moving oil pipe, a three-point suspension support suspension arm, a lateral-moving hydraulic cylinder, a second sliding optical axis, a three-point suspension support middle frame, a lifting arm mechanism lower pull rod mechanism, an upper pull rod mechanism and a connecting plate, wherein two ends of the first sliding optical axis and the second sliding optical axis are fixed on the side plates; one end of the side shifting oil pipe is connected with the side shifting hydraulic cylinder, and the other end of the side shifting oil pipe is connected with an oil cylinder of the agricultural machine; the three-point suspension bracket middle frame is connected with the first sliding optical axis and the second sliding optical axis in a sliding manner through the three-point suspension bracket suspension arm; one end of the lateral shifting hydraulic cylinder is connected with the side plate, the other end of the lateral shifting hydraulic cylinder is connected with the middle frame of the three-point suspension bracket, and a hydraulic rod of the lateral shifting hydraulic cylinder pushes the middle frame of the three-point suspension bracket to move left and right; according to the invention, the lateral movement of the three-point suspension device is realized through the lateral movement hydraulic cylinder, the dead zone in cultivation is cleared, and the operation is safer.
Description
Technical Field
The invention relates to agricultural mechanical equipment, in particular to a lateral movement type three-point suspension device.
Background
With the mechanized development of agriculture, agricultural machines are widely applied to crop cultivation, which not only greatly saves manpower, but also improves cultivation efficiency. The common agricultural machine has a traction type, a semi-suspension type and a suspension type, and is widely used in China mainly in the traction type and the suspension type, and the traction type machine has a complex structure and poor maneuverability and is mostly used for single-point connection with a tractor; the suspension type machine is suitable for dry farming due to light weight, good maneuverability and wide farming application range. However, the existing suspension type machine tool has a cultivation blind area, for example, when a tractor is used for hanging a rotary cultivator with a three-point suspension device for cultivation, the three-point suspension device can only move up and down and can not move left and right, if tires of the agricultural machine are too close to a ditch for operation, the rear wheel of the tractor can fall into the ditch if the operation is careless, danger is easy to occur, and therefore, weeds close to the ditch can not be rotary-cultivated for ensuring safety, and furthermore, the land beside a roadside, a machine cultivation channel and the ditch can not be rotary-cultivated, so that the land utilization rate is reduced, and the diffusion of weeds and plant diseases and insect pests is increased.
Therefore, the three-point suspension device needs to be improved in structure, and chinese patent document CN205040191U discloses a three-point suspension device and an agricultural vehicle with the same, the agricultural vehicle with the three-point suspension device can be used for hanging various working machines, and comprises a suspension mounting frame, a lifting device and a driving part, the lifting device comprises an upper suspension member for hanging the upper part of the working machine and a lower suspension member for hanging the lower part of the working machine, the lower suspension member comprises left and right lifting arms symmetrically arranged, one ends of the left and right lifting arms are pivoted on the suspension mounting frame, a cross beam is fixedly connected between the left and right lifting arms, and the driving end of the driving part is rotatably connected with the cross beam. The three-point suspension device solves the technical problems that the three-point suspension device in the prior art is complex in structure and easy to damage.
However, in the above-mentioned patent, the three-point suspension device on the agricultural machine can only move up and down, and still does not realize moving left and right, when the tractor is using the three-point suspension device to articulate the rotary cultivator and is close to the ditch to cultivate, the weeds close to the ditch can not carry out rotary tillage, the land beside the roadside, the tractor-ploughing channel and the ditch still can not carry out rotary tillage, the land utilization rate is reduced, and the diffusion of weeds and plant diseases and insect pests is increased.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a lateral movement type three-point suspension device capable of moving left and right.
The technical scheme is as follows: the oil pipe lateral moving device comprises side plates, a sliding optical axis, an oil pipe of a lifting arm, a support, a lateral moving oil pipe, a three-point suspension support suspension arm, a lateral moving hydraulic cylinder, a second sliding optical axis, a middle frame of the three-point suspension support, a lower pull rod mechanism, an upper pull rod mechanism and a connecting plate, wherein the side plates are fixed at two ends of the support; one end of the lifting arm oil pipe is connected with the lifting arm mechanism, and the other end of the lifting arm oil pipe is connected with an oil cylinder of the agricultural machine; one end of the side shifting oil pipe is connected with a side shifting hydraulic cylinder, and the other end of the side shifting oil pipe is connected with an oil cylinder of the agricultural machine; the three-point suspension bracket middle frame is positioned between the first sliding optical axis and the second sliding optical axis and is in sliding connection with the first sliding optical axis and the second sliding optical axis through the three-point suspension bracket suspension arm; one end of the lateral shifting hydraulic cylinder is connected with the side plate, the other end of the lateral shifting hydraulic cylinder is connected with the middle frame of the three-point suspension bracket, and a hydraulic rod of the lateral shifting hydraulic cylinder pushes the middle frame of the three-point suspension bracket to move left and right; the lower pull rod mechanism is positioned at the end part of the suspension arm of the three-point suspension bracket below the middle frame of the three-point suspension bracket, and the upper pull rod mechanism is arranged on the middle frame of the three-point suspension bracket.
The two side shifting oil pipes are connected to the left end and the right end of the side shifting hydraulic cylinder, hydraulic oil output by the side shifting oil pipe at the left end is used for ejecting out the hydraulic rod, and the suspension arm of the three-point suspension bracket moves rightwards; the lateral movement oil pipe at the right end outputs hydraulic oil to push the hydraulic rod back to the original position, namely, the suspension arm of the three-point suspension bracket moves leftwards.
The upper pull rod mechanism comprises an upper pull rod hanging joint, an upper pull rod hanging joint hole, a locking nut, an upper pull rod fixing plate, an upper pull rod fixing head, a connecting pin nut, a connecting pin and an upper pull rod connecting pipe, wherein the upper pull rod hanging joint hole is formed in the middle of the upper pull rod hanging joint; the upper pull rod hanging joint and the upper pull rod connecting pipe as well as the upper pull rod connecting pipe and the upper pull rod fixing head are connected through threaded rods, and upper pull rod locking nuts are sleeved on the threaded rods; the upper pull rod fixing plates are provided with two middle frames which are arranged in parallel on the three-point suspension bracket, and the upper pull rod fixing head is positioned between the two parallel upper pull rod fixing plates; the through holes are formed in the upper pull rod fixing head and the two upper pull rod fixing plates, the connecting pin penetrates through the through holes in the upper pull rod fixing head and the two upper pull rod fixing plates, the two ends of the connecting pin are locked through the connecting pin nut, and the distance between the upper pull rod hanging joint and the upper pull rod fixing head is adjusted by rotating the locking nut and the upper pull rod connecting pipe.
Still include lower link mechanism, lower link mechanism has two, is located the below both sides of upper link mechanism, and lower link mechanism is including the lower link articulate that has the through-hole, the lower link connecting pipe, lower link lock nut, threaded connection pole, the stationary post, between lower link articulate and the lower link connecting pipe, all be connected through threaded connection pole between lower link connecting pipe and the stationary post, the cover is equipped with lower link lock nut on the threaded connection pole, change the distance between lower link articulate and the stationary post through rotating lower link connecting pipe and lower link lock nut.
The limiting mechanism comprises a fixed connecting plate, a limiting block, a limiting locking nut, a limiting connecting pipe and a limiting threaded rod, wherein the fixed connecting plate forms a long strip-shaped groove, one end of the groove is fixed on the support, the other end of the groove is fixed at the lower end of the suspension arm of the three-point suspension support, and the side surface of the long strip-shaped groove is flush with the side surface of the suspension arm of the three-point suspension support; the limiting block is arranged in the groove and can slide left and right in the groove; the limiting device is characterized in that the limiting block is connected with the limiting connecting pipe, the limiting connecting pipe is connected with the fixed support of the lower pull rod mechanism through a limiting threaded rod, a limiting locking nut is sleeved on the limiting threaded rod, and the distance between the fixed support of the lower pull rod mechanism and the limiting block is changed by rotating the limiting locking nut and the limiting threaded rod.
The upper end of the lower pull rod fixing suspension arm is fixed on the middle frame of the three-point suspension bracket, and the lower end of the lower pull rod fixing suspension arm is fixed on the limiting mechanism; the lifting arm mechanism comprises a lifting arm connecting rod, a lifting arm connector and a lifting arm oil cylinder, one end of the lifting arm connecting rod is fixed on the lower pull rod fixing suspension arm, the other end of the lifting arm connecting rod is fixedly connected with the lifting arm connector, a fixing support column in the lower pull rod mechanism is fixedly connected with a hydraulic rod of the lifting arm oil cylinder, and the hydraulic rod drives the lower pull rod mechanism to move downwards.
The middle position of one side of the support, which is far away from the first sliding optical axis, is provided with a connecting plate, and the edge of the connecting plate is longitudinally provided with a row of connecting holes for connecting an agricultural machine hanging mechanism.
Be located on the support and be equipped with the bearing block between the three point suspension support davit, be equipped with the through-hole that supplies first slip optical axis to pass on the bearing block, the bearing block can bear the main weight of this device.
The quick-connection hydraulic joint is arranged at one end, connected with the agricultural machine, of the lifting arm oil pipe and the side shifting oil pipe, quick insertion and quick pulling of the hydraulic interface of the agricultural machine are achieved, and operation is convenient.
The left and right movement range of the middle frame of the three-point suspension support is 0-50 cm, and the farming requirement is met.
Has the advantages that: compared with the prior art, the invention has the beneficial effects that: (1) the device can move left and right to sweep out dead zones in cultivation; (2) the rotary cultivator can move up and down, and the rotary cultivator or other farming machinery can be lifted or lowered according to the actual requirement; (3) the safety performance is high, weeds can be removed completely without the need of bringing the agricultural machine too close to a ditch, and dangers that tires of the agricultural machine fall into water and the like are effectively avoided.
Drawings
FIG. 1 is a schematic structural view of the present invention as a whole;
FIG. 2 is a rear view of the present invention;
FIG. 3 is a schematic structural view of the upper drawbar mechanism according to the present invention;
FIG. 4 is a schematic structural view of a lower link mechanism according to the present invention;
FIG. 5 is a schematic structural view of a spacing mechanism according to the present invention;
fig. 6 is a schematic structural view of the lift arm mechanism of the present invention.
Detailed Description
The invention is further described with reference to the following detailed description and the accompanying drawings.
As shown in fig. 1 and 2, the invention comprises a side plate 1, a sliding optical axis 2, a lifting arm oil pipe 3, a bearing block 4, a support 5, a side-shifting oil pipe 6, a quick-connection hydraulic joint 7, a three-point suspension support suspension arm 8, a side-shifting hydraulic cylinder 9, a fixed locking mechanism 10, a second sliding optical axis 11, a three-point suspension support intermediate frame 12, a limiting mechanism 13, a lifting arm mechanism 14, a lower pull rod fixed suspension arm 15, a lower pull rod mechanism 16, an upper pull rod mechanism 17, a connecting plate 18, and connecting holes 19, wherein the side plate 1 is fixed at two ends of the support 5, the side plate 1 is provided with circular holes, two ends of the first sliding optical axis 2 and the second sliding optical axis 11 are fixed in the circular holes of the side plate 1, and the first sliding optical axis 2 and; one end of the lifting arm oil pipe 3 is connected with a lifting arm mechanism 14, and the other end is connected with an oil cylinder of the agricultural machine; the side moves pneumatic cylinder 9 is connected to side oil pipe 6 one end, and the hydro-cylinder of agricultural machine is connected to the other end, and in this embodiment, the one end that lift arm oil pipe 3, side move oil pipe 6 connect agricultural machine is equipped with and connects hydraulic interface soon, realizes inserting fast with agricultural machine hydraulic interface and pulls out fast convenient operation. Be located on the support 5 and be equipped with bearing block 4 between the three point suspension support davit 8, be equipped with the through-hole that supplies first slip optical axis 2 to pass on the bearing block 4, the bearing block can bear the main weight of this device.
The three-point suspension support middle frame 12 is located between the first sliding optical axis 2 and the second sliding optical axis 11 and is in sliding connection with the first sliding optical axis 2 and the second sliding optical axis 11 through three-point suspension support suspension arms 8, two sets of the three-point suspension support suspension arms 8 are arranged at two ends of the three-point suspension support middle frame 12, and the three-point suspension support suspension arms 8 and the three-point suspension support middle frame 12 form a V-shaped structure. A connecting hole for connecting the lateral moving hydraulic cylinder 9 is formed in the side plate 1, a hydraulic rod of the lateral moving hydraulic cylinder 9 close to one end of the side plate 1 is installed in the connecting hole, the other end of the lateral moving hydraulic cylinder 9 is connected with a three-point suspension bracket middle frame 12, the three-point suspension bracket middle frame 12 is overlapped with the axis of the lateral moving hydraulic cylinder 9, and the hydraulic rod of the lateral moving hydraulic cylinder 9 pushes the three-point suspension bracket middle frame 12 to move left and right; in the embodiment, the left-right movement range of the middle frame 12 of the three-point suspension bracket is 0-50 cm, so that the farming requirement is met. The lower pull rod mechanism 16 is positioned at the end part of the three-point suspension bracket suspension arm 8 below the three-point suspension bracket middle frame 12, and the upper pull rod mechanism 17 is arranged on the three-point suspension bracket middle frame 12. As shown in fig. 2, a connecting plate 18 is disposed at a middle position of one side of the bracket 5 far from the first sliding optical axis 2, and a row of connecting holes 19 for connecting a hitching mechanism of an agricultural machine are formed at the edge of the connecting plate 18 along the longitudinal direction.
As shown in fig. 1, two side-shifting oil pipes 6 are connected to the left end and the right end of a side-shifting hydraulic cylinder 9, the side-shifting oil pipe 6 at the left end outputs hydraulic oil to push out a hydraulic rod, and a three-point suspension bracket suspension arm 8 moves rightwards; the lateral moving oil pipe 6 at the right end outputs hydraulic oil to push the hydraulic rod back to the original position, namely the three-point suspension support suspension arm 8 moves leftwards.
As shown in fig. 3, the upper pull rod mechanism 17 includes an upper pull rod hanging joint 171, an upper pull rod hanging joint hole 172, a locking nut 173, an upper pull rod fixing plate 174, an upper pull rod fixing head 175, a connecting pin nut 176, a connecting pin 177, an upper pull rod connecting pipe 178 with internal threads at both ends, and the upper pull rod hanging joint hole 172 is opened in the middle of the upper pull rod hanging joint 171; the two ends of the upper pull rod connecting pipe 178 are provided with internal threads, the upper pull rod hanging joint 171 and the upper pull rod connecting pipe 178, and the upper pull rod connecting pipe 178 and the upper pull rod fixing head 175 are connected through threaded rods, and upper pull rod locking nuts 173 are sleeved on the threaded rods; the upper pull rod fixing plates 174 are arranged in parallel on the three-point suspension bracket middle frame 12, and the upper pull rod fixing head 175 is positioned between the two parallel upper pull rod fixing plates 174; the length of connecting pin 177 is greater than the distance between two upper tie rod fixing plates 174, and the connecting pin 177 both ends are from the threading, and the through-hole has all been seted up to upper tie rod fixed head 175 and two upper tie rod fixing plates 174, and connecting pin 177 passes the through-hole on upper tie rod fixed head 175 and two upper tie rod fixing plates 174, and the connecting pin 177 both ends are locked through connecting pin nut 176, adjust the distance between upper tie rod attach head 171 and the upper tie rod fixed head 175 through rotating lock nut 173 and upper tie rod connecting pipe 178.
As shown in fig. 4, there are two lower link mechanisms 16 located at two sides below the upper link mechanism 17, each lower link mechanism 16 includes a lower link coupling 161 having a through hole, a lower link connecting pipe 162, a lower link locking nut 163, a threaded connecting rod 164, and a fixing support 165, inner threads are provided at two ends of the lower link connecting pipe 162, the lower link coupling 161 and the lower link connecting pipe 162, the lower link connecting pipe 162 and the fixing support 165 are all connected through the threaded connecting rod 164, the threaded connecting rod is sleeved with the lower link locking nut 163, and the distance between the lower link coupling 161 and the fixing support 165 is changed by rotating the lower link connecting pipe 162 and the lower link locking nut 163.
As shown in fig. 5, the limiting mechanism 13 includes a fixed connecting plate 131, a limiting block 132, a limiting locking nut 133, a limiting connecting pipe 134, and a limiting threaded rod 135, the fixed connecting plate 131 forms a strip-shaped groove, one end of the groove is fixed on the bracket 5, the other end of the groove is fixed at the lower end of the three-point suspension bracket boom 8, and the side surface of the strip-shaped groove is flush with the side surface of the three-point suspension bracket boom 8; the limiting block 132 is arranged in the groove, and the limiting block 132 can slide left and right in the groove; the two ends of the limit connecting pipe 13 are provided with internal threads, the limit block 132 is connected with the limit connecting pipe 134 through a limit threaded rod 135, the limit connecting pipe 134 is connected with the fixed strut 165 of the lower link mechanism 16 through a limit threaded rod 135, the limit threaded rod 135 is sleeved with a limit locking nut 133, and the distance between the fixed strut 165 of the lower link mechanism 16 and the limit block 132 is changed by rotating the limit locking nut 133 and the limit threaded rod 135.
As shown in fig. 1 and 6, the upper end of the lower pull rod fixing suspension arm 15 is fixed on the middle frame 12 of the three-point suspension bracket, and the lower end is fixed on the limiting mechanism 13; the lift arm mechanism 14 includes a lift arm connecting rod 141, a lift arm connector 142, and a lift arm cylinder 143, one end of the lift arm connecting rod 141 is fixed on the lower link fixed boom 15, the other end is fixedly connected with the lift arm connector 142, a fixed strut 165 in the lower link mechanism 16 is fixedly connected with a hydraulic rod of the lift arm cylinder 143, and the hydraulic rod drives the lower link mechanism 16 to move downward.
When in use, the device is firstly installed on a hitching mechanism of a tractor; then, the upper pull rod hitching head 171 of the upper pull rod mechanism 17 and the lower pull rod hitching heads 161 of the two lower pull rod mechanisms 16 are installed on the rotary cultivator or other agricultural implement; secondly, the oil cylinder of the tractor conveys hydraulic oil to the lifting arm oil cylinder 143 through the lifting arm oil pipe 3, a hydraulic rod in the lifting arm oil cylinder 143 moves downwards, and the lifting arm mechanism 14 descends the rotary cultivator; when the lifting arm mechanism 14 lifts the rotary cultivator, the hydraulic rod in the lifting arm cylinder 143 returns to the original position upwards, and the hydraulic oil is output to the cylinder of the tractor; finally, when the device needs to move left and right, the oil cylinder of the tractor conveys hydraulic oil to the lateral movement hydraulic cylinder 9 through the lateral movement oil pipe 6, the hydraulic rod of the lateral movement hydraulic cylinder 9 pushes the middle frame 12 of the three-point suspension bracket to move left and right, the rotary cultivator is driven to move left and right, and the farming requirement is met.
Claims (10)
1. A lateral movement type three-point suspension device is characterized in that: the device comprises a side plate (1), a sliding optical axis (2), a lifting arm oil pipe (3), a support (5), a side shifting oil pipe (6), a three-point suspension support lifting arm (8), a side shifting hydraulic cylinder (9), a second sliding optical axis (11), a three-point suspension support middle frame (12), a lifting arm mechanism (14), a lower pull rod mechanism (16), an upper pull rod mechanism (17) and a connecting plate (18), wherein the side plate (1) is fixed at two ends of the support (5), two ends of a first sliding optical axis (2) and a second sliding optical axis (11) are fixed on the side plate (1), and the first sliding optical axis (2) and the second sliding optical axis (11) are arranged in parallel; one end of the lifting arm oil pipe (3) is connected with a lifting arm mechanism (14), and the other end of the lifting arm oil pipe is connected with an oil cylinder of the agricultural machine; one end of the side shifting oil pipe (6) is connected with a side shifting hydraulic cylinder (9), and the other end of the side shifting oil pipe is connected with an oil cylinder of the agricultural machine; the three-point suspension bracket intermediate frame (12) is positioned between the first sliding optical axis (2) and the second sliding optical axis (11) and is in sliding connection with the first sliding optical axis (2) and the second sliding optical axis (11) through a three-point suspension bracket suspension arm (8); one end of a lateral moving hydraulic cylinder (9) is connected with the side plate (1), the other end of the lateral moving hydraulic cylinder is connected with a middle frame (12) of the three-point suspension bracket, and a hydraulic rod of the lateral moving hydraulic cylinder (9) pushes the middle frame (12) of the three-point suspension bracket to move left and right; the lower pull rod mechanism (13) is positioned at the end part of the three-point suspension support suspension arm (8) below the three-point suspension support middle frame (12), and the upper pull rod mechanism (17) is arranged on the three-point suspension support middle frame (12).
2. The side-shifting three-point hitch of claim 1, further comprising: the two side shifting oil pipes (6) are connected to the left end and the right end of the side shifting hydraulic cylinder (9), the hydraulic rod is ejected out by the hydraulic oil output by the side shifting oil pipe (6) at the left end, and the three-point suspension bracket suspension arm (8) moves rightwards; the lateral oil pipe (6) at the right end outputs hydraulic oil to push the hydraulic rod back to the original position, namely the suspension arm (8) of the three-point suspension bracket moves leftwards.
3. The side-shifting three-point hitch of claim 1, further comprising: the device is characterized by also comprising an upper pull rod mechanism (17), wherein the upper pull rod mechanism (17) comprises an upper pull rod hanging joint (171), an upper pull rod hanging joint hole (172), a locking nut (173), an upper pull rod fixing plate (174), an upper pull rod fixing head (175), a connecting pin nut (176), a connecting pin (177) and an upper pull rod connecting pipe (178), and the middle of the upper pull rod hanging joint (171) is provided with the upper pull rod hanging joint hole (172); the upper pull rod hanging joint (171) is connected with the upper pull rod connecting pipe (178) and the upper pull rod connecting pipe (178) is connected with the upper pull rod fixing head (175) through threaded rods, and upper pull rod locking nuts (173) are sleeved on the threaded rods; the upper pull rod fixing plates (174) are provided with two middle frames (12) which are arranged in parallel on the three-point suspension bracket, and an upper pull rod fixing head (175) is positioned between the two parallel upper pull rod fixing plates (174); go up pull rod fixed head (175) and two go up pull rod fixed plate (174) and all seted up the through-hole, connecting pin (177) pass the through-hole on pull rod fixed head (175) and two go up pull rod fixed plate (174), and connecting pin (177) both ends are locked through connecting pin nut (176), adjust the distance between last pull rod hanger joint (171) and last pull rod fixed head (175) through rotating lock nut (173) and last pull rod connecting pipe (178).
4. The side-shifting three-point hitch of claim 3, wherein: still include lower link mechanism (16), lower link mechanism (16) have two, be located the below both sides of last link mechanism (17), lower link mechanism (16) are including lower link attach fitting (161) that has the through-hole, lower link connecting pipe (162), lower link lock nut (163), threaded connection pole (164), fixed stay (165), between lower link attach fitting (161) and lower link connecting pipe (162), all be connected through threaded connection pole (164) between lower link connecting pipe (162) and fixed stay (165), threaded connection pole is last (164) to be equipped with lower link lock nut (163), change the distance between lower link attach fitting (161) and fixed stay (165) through rotating lower link connecting pipe (162) and lower link lock nut (163).
5. The side-shifting three-point hitch of claim 4, further comprising: the three-point suspension support is characterized by further comprising a limiting mechanism (13), wherein the limiting mechanism (13) comprises a fixed connecting plate (131), a limiting block (132), a limiting locking nut (133), a limiting connecting pipe (134) and a limiting threaded rod (135), the fixed connecting plate (131) forms a strip-shaped groove, one end of the groove is fixed on the support (5), the other end of the groove is fixed at the lower end of the suspension arm (8) of the three-point suspension support, and the side face of the strip-shaped groove is flush with the side face of the suspension arm (8) of the; the limiting block (132) is arranged in the groove, and the limiting block (132) can slide left and right in the groove; the distance between the limiting block (132) and the limiting connecting pipe (134), the distance between the limiting connecting pipe (134) and the fixed support (165) of the lower pull rod mechanism (16) and the distance between the limiting block (132) and the fixed support (165) of the lower pull rod mechanism (16) are changed by rotating the limiting locking nut (133) and the limiting threaded rod (135), and the limiting locking nut (133) is sleeved on the limiting threaded rod (135).
6. The side-shifting three-point hitch of claim 5, further comprising: the device also comprises a lifting arm mechanism (14) and a lower pull rod fixing suspension arm (15), wherein the upper end of the lower pull rod fixing suspension arm (15) is fixed on the middle frame (12) of the three-point suspension bracket, and the lower end of the lower pull rod fixing suspension arm is fixed on the limiting mechanism (13); the lifting arm mechanism (14) comprises a lifting arm connecting rod (141), a lifting arm connector (142) and a lifting arm oil cylinder (143), one end of the lifting arm connecting rod (141) is fixed on the lower pull rod fixing suspension arm (15), the other end of the lifting arm connecting rod is fixedly connected with the lifting arm connector (142), a fixing support column (165) in the lower pull rod mechanism (16) is fixedly connected with a hydraulic rod of the lifting arm oil cylinder (143), and the hydraulic rod drives the lower pull rod mechanism (16) to move downwards.
7. The side-shifting three-point hitch of claim 1, further comprising: a connecting plate (18) is arranged in the middle of one side, away from the first sliding optical axis (2), of the support (5), and a row of connecting holes (19) used for connecting an agricultural machine hanging mechanism are formed in the edge of the connecting plate (18) in the longitudinal direction.
8. The side-shifting three-point hitch of claim 1, further comprising: be equipped with bearing block (4) between three point suspension support davit (8) on support (5), be equipped with the through-hole that supplies first slip optical axis (2) to pass on bearing block (4).
9. The side-shifting three-point hitch of claim 1, further comprising: one end of the lifting arm oil pipe (3) and the side shifting oil pipe (6) connected with the agricultural machine is provided with a quick-connection hydraulic joint (7).
10. The side-shifting three-point hitch of claim 1, further comprising: the range of the left and right movement of the middle frame (12) of the three-point suspension bracket is 0-50 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911314972.7A CN110959325B (en) | 2019-12-19 | 2019-12-19 | Side-shifting type three-point suspension device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911314972.7A CN110959325B (en) | 2019-12-19 | 2019-12-19 | Side-shifting type three-point suspension device |
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| Publication Number | Publication Date |
|---|---|
| CN110959325A true CN110959325A (en) | 2020-04-07 |
| CN110959325B CN110959325B (en) | 2024-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911314972.7A Active CN110959325B (en) | 2019-12-19 | 2019-12-19 | Side-shifting type three-point suspension device |
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| CN (1) | CN110959325B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU203730U1 (en) * | 2021-01-29 | 2021-04-19 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Башкирский государственный аграрный университет" | Tractor hitch |
| CN114323719A (en) * | 2021-12-14 | 2022-04-12 | 华中农业大学 | Seeder detects and test platform |
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| CN205040191U (en) * | 2015-09-28 | 2016-02-24 | 浙江玉马机械有限公司 | Three -point linkage and have this three -point linkage's agricultural vehicle |
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| RU203730U1 (en) * | 2021-01-29 | 2021-04-19 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Башкирский государственный аграрный университет" | Tractor hitch |
| CN114323719A (en) * | 2021-12-14 | 2022-04-12 | 华中农业大学 | Seeder detects and test platform |
| CN114323719B (en) * | 2021-12-14 | 2024-03-19 | 华中农业大学 | Seeder detects and test platform |
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| CN110959325B (en) | 2024-05-24 |
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