Single casting four-bar mechanism of seeding machine

Abstract

The utility model relates to the technical field of seeding machines, in particular to a single casting four-bar mechanism of a seeding machine, which comprises a fixed frame, a floating frame, two four-bar links and a tensioning structure, the four-bar links are of an integrated casting structure, and one ends of the two four-bar links are fixedly connected to the upper end and the lower end of the fixed frame respectively. The floating frame is rotationally connected to the other ends of the two four-bar links, and the tensioning structure is connected between the four-bar link located on the upper portion and the lower portion of the fixing frame. The four-bar linkage is of an integrated casting structure, the floating frame can transmit force from the lateral direction, the lateral force borne by the four-bar linkage is increased, and therefore the strength, stability and anti-fatigue performance of the four-bar linkage are improved, and the service life of the four-bar linkage is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to seeding machine technical field, concretely is a seeding machine single body casting four connecting rod mechanism. BACKGROUND

[0002] Four connecting rod mechanism can make seeding machine with ground fluctuation, keep seeding depth consistent, row distance consistent, adapt to different crops and soil conditions, install four connecting rod structure on seeding machine, four connecting rod structure can absorb part ground impact, reduce the vibration to seeding machine, prolong the service life of equipment, seeding machine keeps stable in operation, reduces vibration and swing, can promote seeding precision. SUMMARY

[0003] The utility model discloses a seeding machine single body casting four connecting rod mechanism, to solve the four connecting rod mechanism of prior art easy deformation, the problem of poor strength, stability, fatigue resistance.

[0004] To achieve the above object, the utility model provides the following technical scheme: a seeding machine single body casting four connecting rod mechanism, including fixed frame, floating frame, two four connecting rods, tension structure, the four connecting rod is integrally cast structure, one end of two four connecting rods is fixedly connected in the upper and lower end of fixed frame, floating frame is rotatably connected in the other end of two four connecting rods, and the tension structure is connected between the upper four connecting rod and the lower part of fixed frame.

[0005] Preferably, the four connecting rod mechanism includes a frame, four connecting rod arms integrally formed with the frame, and end portions of the four connecting rod arms are provided with rotating holes.

[0006] Preferably, the rotating holes are internally provided with wear-resistant sleeves.

[0007] Preferably, the fixed frame is fixedly connected with a connecting rod, both ends of the connecting rod are provided with threaded holes, a bolt is inserted into the wear-resistant sleeve of the rotating hole and locked into the threaded hole of the connecting rod on the fixed frame.

[0008] Preferably, the floating frame includes two rotating rods and a frame body, the frame body is provided with connecting holes through the rotating rods, and the two rotating rods pass through the upper and lower connecting holes of the frame body and are fixedly connected with the frame body.

[0009] Preferably, the end portions of the rotating rods are provided with threaded holes.

[0010] Preferably, a bolt is inserted into the wear-resistant sleeve of the rotating hole and locked into the threaded hole of the end portion of the rotating rod.

[0011] The frame of the four-connecting-rod mechanism is provided with a plurality of positioning holes.

[0012] Preferably, the tensioning structure comprises a tensioning arm, a tensioning positioning rod, two tensioning rotating rods, the two tensioning rotating rods are rotationally connected with the frame through the positioning holes on the frame, the end of the tensioning arm is provided with a through hole, one of the tensioning rotating rods is connected with the tensioning arm through the through hole, the other end of the other tensioning rotating rod is connected with a connecting rod, the other end of the connecting rod is connected with the tensioning positioning rod, and the two ends of the tensioning positioning rod are arranged in the movable clamping groove at the end of the tensioning arm.

[0013] Preferably, the tensioning structure comprises a tensioning spring, the tensioning arm is provided with a connecting hole, one end of the tensioning spring is connected with the connecting hole, and the other end of the tensioning spring is connected with the lower part of the fixed frame.

[0014] Compared with the prior art, the four-connecting-rod mechanism has the advantages that the four-connecting-rod is an integrated casting structure, the floating frame can transmit force from the lateral direction, the lateral force that can be borne by the four-connecting-rod is increased, and therefore the strength, stability and fatigue resistance of the four-connecting-rod mechanism are improved, and the service life of the four-connecting-rod is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure diagram of the four-connecting-rod mechanism of the seeding machine of the utility model;

[0016] Figure 2 It is another three-dimensional structure diagram of the four-connecting-rod mechanism of the seeding machine of the utility model;

[0017] Figure 3 It is a structure schematic diagram of the four-connecting-rod of the utility model;

[0018] Figure 4 It is an installation structure schematic diagram of the four-connecting-rod and the fixed frame of the utility model.

[0019] In the drawing: fixed frame 1, floating frame 2, four-connecting-rod 3, tensioning structure 4, connecting rod 11, threaded hole 12, frame 31, connecting rod arm 32, rotating hole 33, wear-resistant sleeve 34, positioning hole 35, bolt 36, rotating rod 21, frame body 22, tensioning arm 41, tensioning positioning rod 42, tensioning rotating rod 43, movable clamping groove 44, connecting rod 45, tensioning spring 46, nut 47, connecting hole 48. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme of the utility model carry on clear, complete description, and the advantage is more clear and distinct, the following combining with the drawing to the utility model embodiment carries on further detailed explanation.Should understand, the specific embodiment described here is a part of the embodiment of the utility model, rather than all the embodiments, only to explain the embodiment of the utility model, and is not used to limit the embodiment of the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belongs to the scope of the utility model protection.

[0021] Embodiment

[0022] Please refer to Figures 1 to 4 A seeding machine single casting four-bar linkage mechanism, including fixed frame 1, floating frame 2, two four-bar linkages 3, tensioning structure 4, as Figure 3 The four-bar linkage 3 of the embodiment is an integral casting structure, one end of the two four-bar linkages 3 is fixedly connected to the upper and lower ends of the fixed frame 1, the floating frame 2 is rotatably connected to the other end of the two four-bar linkages 3, and the tensioning structure 4 is connected between the upper four-bar linkage 3 and the lower part of the fixed frame 1.

[0023] Specifically, the four-bar linkage 3 of the embodiment includes a frame 31 and four linkage arms 32 integrally formed with the frame 31, the end of the four linkage arms 32 is provided with a rotating hole 33, the rotating hole 33 is internally provided with a wear-resistant sleeve 34, and a plurality of positioning holes 35 are formed in the frame 31, Figure 3 As shown in the figure, a total of six positioning holes 35 are located on opposite sides of the frame 31, and the positioning hole 35 located in the middle is slightly higher than the positioning holes 35 located on both sides.

[0024] Specifically, the upper and lower ends of the fixed frame 1 of the embodiment are fixedly connected with a connecting rod 11, and the two ends of the connecting rod 11 have threaded holes 12. The four-bar linkage 3 and the fixed frame 1 are locked by inserting a bolt 36 into the wear-resistant sleeve 34 of the linkage arm 32 and deepening the threaded hole 12 of the connecting rod 11 of the fixed frame 1.

[0025] Specifically, the floating frame 2 of the embodiment includes two rotating rods 21 and a frame body 22, the frame body 22 is provided with a connecting hole through which the rotating rod 21 passes, and the two rotating rods 21 pass through the connecting holes above and below the frame body 22 and are fixedly connected with the frame body 22 by welding. The end of the rotating rod 21 has a threaded hole. The rotating rod 32 and the four-bar linkage 3 are connected by inserting a bolt 36 into the wear-resistant sleeve 34 of the rotating hole 33 of the linkage arm 32 and deepening the threaded hole of the end of the rotating rod 21.

[0026] When the four-bar linkage mechanism of the embodiment is used, the fixed frame 1 and the seeding machine are installed by bolts. When the frame body 22 of the floating frame 2 floats up and down, the wear-resistant sleeve 34 rotates on the surface of the bolt 36.

[0027] Further, in order to provide tension for the four-bar linkage mechanism, the tensioning structure 4 of the embodiment comprises a tensioning arm 41, a tensioning positioning rod 42, two tensioning rotating rods 43, the end of the tensioning arm 41 is provided with a through hole and a movable clamping groove 44, the two tensioning rotating rods 43 are respectively connected with the frame 31 in rotation through the positioning holes 35 on the frame 31, and the ends of the tensioning rotating rods 43 are locked by nuts 47, the through hole of the tensioning arm 41 is connected with one of the tensioning rotating rods 43, the other tensioning rotating rod 43 is connected with one connecting rod 45 at each end, the other end of the connecting rod 45 is connected with the tensioning positioning rod 42, and the two ends of the tensioning positioning rod 42 are arranged in the movable clamping groove 44 at the end of the tensioning arm 41. The tensioning structure 4 further comprises two tensioning springs 46, the tensioning arm 41 is provided with a connecting hole 48, one end of the tensioning spring 46 is hooked on the connecting hole 48, and the other end is connected with the lower part of the fixed frame 1.

[0028] The working condition of the four-bar linkage mechanism is unpredictable, and when the seeding machine is operated at high speed, the shaking of the seeding machine is intensified due to the terrain, land, soil environment and other reasons, which may cause the four-bar linkage mechanism to deform. The floating frame 2 can transmit the force from the side, and compared with the welded four-bar linkage, the cast four-bar linkage mechanism can withstand a maximum lateral force of 2740N without plastic deformation.

[0029] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A planter unit cast four-bar linkage characterized by: Including fixed frame, floating frame, two four connecting rods, tensioning structure, the four connecting rods are integrated cast structure, one end of two four connecting rods is fixedly connected at the upper and lower ends of the fixed frame, the floating frame is rotatably connected at the other end of two four connecting rods, the tensioning structure is connected between the upper four connecting rod and the lower part of the fixed frame.

2. The planter unit cast four-bar linkage of claim 1, wherein: The four connecting rod mechanism comprises a frame and four connecting rod arms integrally formed with the frame, and end portions of the four connecting rod arms are provided with rotating holes.

3. The monobloc cast four-bar linkage of a planter according to claim 2, characterized in that: The rotating hole is internally provided with a wear-resistant sleeve.

4. The planter unit cast four-bar linkage of claim 3, wherein: The fixed frame is fixedly connected with a connecting rod, both ends of the connecting rod are provided with threaded holes, a bolt is inserted into the wear-resistant sleeve of the rotating hole and locked into the threaded hole of the connecting rod on the fixed frame.

5. The monobloc cast four-bar linkage of a planter according to claim 3, wherein: The floating frame comprises two rotating rods and a frame body, the frame body is provided with connecting holes through the rotating rods, and the two rotating rods are respectively inserted through the upper and lower connecting holes of the frame body and fixedly connected with the frame body.

6. The planter unit cast four-bar linkage of claim 5, wherein: The end portion of the rotating rod is provided with a threaded hole.

7. The monobloc cast four-bar linkage of a planter according to claim 6, characterized in that: The bolt is inserted into the wear-resistant sleeve of the rotating hole and locked into the threaded hole of the end portion of the rotating rod.

8. The planter unit cast four-bar linkage of claim 2, wherein: The frame of the four connecting rod mechanism is provided with a plurality of positioning holes.

9. The planter unit cast four-bar linkage of claim 8, wherein: The tensioning structure comprises a tensioning arm, a tensioning positioning rod and two tensioning rotating rods, the two tensioning rotating rods are rotatably connected with the frame through the positioning holes on the frame, the end portion of the tensioning arm is provided with a through hole, one of the tensioning rotating rods is connected with the tensioning arm through the through hole, the other end of the other tensioning rotating rod is connected with a connecting rod, the other end of the connecting rod is connected with the tensioning positioning rod, and both ends of the tensioning positioning rod are arranged in the movable clamping groove of the end portion of the tensioning arm.

10. The planter unit cast four-bar linkage of claim 9, wherein: The tensioning structure comprises a tensioning spring, the tensioning arm is provided with a connecting hole, one end of the tensioning spring is connected with the connecting hole, and the other end of the tensioning spring is connected with the lower part of the fixed frame.

Images