阅读说明：本技术 一种收薯机的压杆机构 (Receive depression bar mechanism of potato machine ) 是由 邓衍夫 邓传虎 刘明 张华� 李鑫 邓衍宏 韩铁 邓传林 于 2019-10-18 设计创作，主要内容包括：本发明公开了一种收薯机的压杆机构,所述压杆机构对应设置在传输机构两侧边缘处的上方；所述压杆机构包括固定在收薯机上的横梁、压紧轮；所述压紧轮转动连接在横梁上；所述压紧轮压合到靠近第二链轮的传输杆上；所述压紧轮包括配重盘及压紧带；所述压紧带固定在配重盘的外周；所述配重盘转动连接在横梁上；所述压紧带包括压紧齿及压紧齿槽；所述压紧齿与压紧齿槽交替设置；所述压紧齿插入到两相邻的传输杆之间；所述传输杆插入到压紧齿槽内；本发明,收薯机的链带与链轮辊紧密贴合,收薯工作运行正常稳定。(The invention discloses a pressure lever mechanism of a potato harvesting machine, which is correspondingly arranged above the edges of two sides of a transmission mechanism; the pressure bar mechanism comprises a beam and a pressing wheel which are fixed on the potato collecting machine; the pinch roller is rotationally connected to the cross beam; the pinch roller is pressed on the transmission rod close to the second chain wheel; the pressing wheel comprises a balance weight disc and a pressing belt; the compression belt is fixed on the periphery of the counterweight plate; the counterweight plate is rotatably connected to the cross beam; the pressing belt comprises pressing teeth and a pressing tooth groove; the pressing teeth and the pressing tooth grooves are alternately arranged; the pressing teeth are inserted between two adjacent transmission rods; the transmission rod is inserted into the pressing tooth groove; according to the invention, the chain belt of the potato harvesting machine is tightly attached to the chain wheel roller, and the potato harvesting operation is normal and stable.)

1. The utility model provides a receive depression bar mechanism of potato machine which characterized in that: the pressure lever mechanisms are correspondingly arranged above the edges of the two sides of the transmission mechanism; the pressure bar mechanism comprises a beam and a pressing wheel which are fixed on the potato collecting machine; the pinch roller is rotationally connected to the cross beam; the pinch roller is pressed on the transmission rod close to the second chain wheel;

The pressing wheel comprises a balance weight disc and a pressing belt; the compression belt is fixed on the periphery of the counterweight plate; the counterweight plate is rotatably connected to the cross beam;

The pressing belt comprises pressing teeth and a pressing tooth groove; the pressing teeth and the pressing tooth grooves are alternately arranged; the pressing teeth are inserted between two adjacent transmission rods; the transmission rod is inserted into the pressing tooth groove.

2. The potato harvester compression bar mechanism of claim 1, wherein: the compression bar mechanism also comprises a first fixed seat, a fixed connecting rod, a hinge shaft, a rotating connecting rod, an elastic piece, a second fixed seat and a connecting piece; the first fixed seats are correspondingly fixed at two ends of the cross beam; the fixed connecting rods are correspondingly fixed at the bottoms of the two ends of the cross beam; the rotating connecting rod is rotatably connected to the fixed connecting rod through a hinge shaft; the pinch roller is rotatably connected to one end of the rotating connecting rod; the second fixed seat is fixed at the other end of the rotating connecting rod through a connecting sheet; the elastic piece is connected between the first fixing seat and the second fixing seat.

3. The potato harvester compression bar mechanism of claim 2, wherein: the rotating connecting rod inclines towards the rear end of the potato collecting machine; the movable included angle range of the fixed connecting rod and the rotating connecting rod is 0-90 degrees; the initial included angle between the fixed connecting rod and the rotating connecting rod is 10 degrees.

4. The potato harvester compression bar mechanism of claim 2, wherein: the fixed connecting rod is connected to the middle position of the rotating connecting rod through a hinge shaft.

5. The potato harvester compression bar mechanism of claim 2, wherein: the connecting piece is arranged in parallel to the horizontal direction.

6. The potato harvester compression bar mechanism of claim 2, wherein: the elastic piece is a spring with clamping hooks at two ends; the first fixing seat and the second fixing seat are provided with clamping holes for sleeving the clamping hooks.

7. the potato harvester compression bar mechanism of claim 2, wherein: the counterweight plate is rotatably connected to the rotating connecting rod through a bearing.

8. The potato harvester compression bar mechanism of claim 2, wherein: the first fixing seat inclines, and the inclination of the first fixing seat is consistent with that of the fixing connecting rod.

9. The potato harvester compression bar mechanism of claim 1, wherein: when the section of the transmission rod is circular, the pressing tooth groove is a circular groove; the cross-section of the transmission rod is trapezoidal, and the pressing tooth grooves are trapezoidal grooves.

Technical Field

The invention relates to the technical field of potato harvesting of a potato harvesting machine, in particular to a pressure lever mechanism of the potato harvesting machine.

Background

The potato harvester mainly comprises a plurality of groups of transmission devices consisting of transmission rods for harvesting potato crops cut from vines, and when the potato crops are harvested, chain belts at the bottoms of the transmission rods are driven by chain wheels to drive the transmission rods to move back and forth alternately, so that the potato crops are conveyed into a storage box. However, the chain belt of the potato harvester always keeps a certain looseness degree to prevent the chain belt from being tightened, when the potato harvester is impacted by external force, the potato harvester is damaged, when the potato harvester works in the field, the potato harvester can often meet the collided place, therefore, the chain belt needs to keep a certain looseness degree, and then a new problem is brought.

the traditional solution is that, adopt the great chain belt of quality for the inseparable laminating of the first half of chain belt is on the sprocket, but, this kind of solution solve thoroughly inadequately, meetting unevenness's road surface, the chain belt can take place to rock from top to bottom, still exists the phenomenon that chain belt and sprocket skidded.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: provides a pressure bar mechanism of a potato harvester capable of pressing a chain belt onto a chain wheel.

In order to solve the technical problems, the invention provides the following technical scheme: a pressure lever mechanism of a potato harvesting machine is correspondingly arranged above the edges of two sides of a transmission mechanism; the pressure bar mechanism comprises a beam and a pressing wheel which are fixed on the potato collecting machine; the pinch roller is rotationally connected to the cross beam; the pinch roller is pressed on the transmission rod close to the second chain wheel;

The pressing wheel comprises a balance weight disc and a pressing belt; the compression belt is fixed on the periphery of the counterweight plate; the counterweight plate is rotatably connected to the cross beam;

The pressing belt comprises pressing teeth and a pressing tooth groove; the pressing teeth and the pressing tooth grooves are alternately arranged; the pressing teeth are inserted between two adjacent transmission rods; the transmission rod is inserted into the pressing tooth groove.

A plurality of transmission rods at the foremost end of the transmission rod group are pressed down to the chain grooves and the tooth clamping of the chain belt, so that the chain belt connected with the foremost end of the transmission rod group is effectively prevented from being separated from the tooth on the second chain wheel under the tension of the chain belt, the chain belt is prevented from slipping, and the normal operation of potato collecting work of the potato collecting machine is ensured.

Preferably, the compression bar mechanism further comprises a first fixed seat, a fixed connecting rod, a hinge shaft, a rotating connecting rod, an elastic piece, a second fixed seat and a connecting piece; the first fixed seats are correspondingly fixed at two ends of the cross beam; the fixed connecting rods are correspondingly fixed at the bottoms of the two ends of the cross beam; the rotating connecting rod is rotatably connected to the fixed connecting rod through a hinge shaft; the pinch roller is rotatably connected to one end of the rotating connecting rod; the second fixed seat is fixed at the other end of the rotating connecting rod through a connecting sheet; the elastic piece is connected between the first fixing seat and the second fixing seat.

Preferably, the rotating connecting rod is inclined towards the rear end of the potato collecting machine; the movable included angle range of the fixed connecting rod and the rotating connecting rod is 0-90 degrees; the initial included angle between the fixed connecting rod and the rotating connecting rod is 10 degrees.

The fixed connecting rod and the rotating connecting rod can be rotated in a staggered mode, the fixed connecting rod and the rotating connecting rod are prevented from being arranged on a vertical line, and rotation is inconvenient.

Preferably, the fixed link is connected to an intermediate position of the rotating link by a hinge shaft.

Preferably, the connecting pieces are arranged parallel to the horizontal direction.

Preferably, the elastic part is a spring with clamping hooks at two ends; the first fixing seat and the second fixing seat are provided with clamping holes for sleeving the clamping hooks.

Preferably, the weight plate is rotatably connected to the rotating connecting rod through a bearing.

Preferably, the first fixing seat is inclined, and the inclination of the first fixing seat is consistent with that of the fixing connecting rod.

Preferably, when the section of the transmission rod is circular, the pressing tooth groove is a circular groove; the cross-section of the transmission rod is trapezoidal, and the pressing tooth grooves are trapezoidal grooves.

The compaction toothed belt on the counterweight plate is pressed on the first chain wheel and the second chain wheel, the compaction teeth are inserted between two adjacent transmission rods, the transmission rods are inserted into compaction tooth grooves, and the transmission rods and the chain belts connected with the transmission rods are pressed on the first chain wheel and the second chain wheel through the compaction wheels, so that the chain belts are prevented from slipping when the first chain wheel and the second chain wheel rotate, and the normal operation of potato crop conveying is ensured; meanwhile, due to the terrain problem, if the ground is uneven, the fixed end of the elastic element is fixed on the cross beam, the movable end of the elastic element is connected on the rotating connecting rod hinged with the fixed connecting rod, when the weight disc is impacted by the ground bump, the rotating connecting rod connected with one end of the weight disc rotates relative to the fixed connecting rod and extrudes the elastic element, under the elastic action of the elastic element, the rotating connecting rod rotates in a small range, namely, the weight disc is still attached to the first chain wheel and the second chain wheel, the position of the weight disc is prevented from being fixed, the weight disc is prevented from colliding with the first chain wheel and the second chain wheel, the safety protection performance of the pressing wheel is improved, otherwise, when the ground is sunken, the elastic element ensures that the pressing wheel slowly descends until the weight disc is attached to the first chain wheel and the second chain wheel, and when the pressing wheel is prevented from being fixed at one position, the ground is uneven, position adjustment cannot be made in time.

Compared with the prior art, the invention has the beneficial effects that:

A. The transmission rod and the chain belt connected with the transmission rod are pressed on the chain wheel by the pressing wheel, so that the chain belt is prevented from slipping when the chain wheel rotates, and the normal operation of potato crop conveying is ensured;

B. the pinch roller passes through elastic component swing joint on the crossbeam, can prevent pinch roller and sprocket collision, prevents again that the pinch roller from fixing when a position, when meetting sunken ground, can't in time make position adjustment.

drawings

FIG. 1 is a schematic view of an installation of a medium pressure lever mechanism according to an embodiment of the present invention;

FIG. 2 is an overall isometric view of a medium pressure lever mechanism according to an embodiment of the present invention;

FIG. 3 is a schematic view of an installation structure of a chain belt and a sprocket according to an embodiment of the present invention;

FIG. 4 is an isometric view of a pinch roller according to one embodiment of the present invention.

Detailed Description

In order to facilitate the understanding of the technical solutions of the present invention for those skilled in the art, the technical solutions of the present invention will be further described with reference to the drawings attached to the specification.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.