CN201015283Y

CN201015283Y - Seedling-pulling mechanism of the rice transplanting machine

Info

Publication number: CN201015283Y
Application number: CNU2007200936021U
Authority: CN
Inventors: 李荣宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-04-20
Filing date: 2007-04-20
Publication date: 2008-02-06
Anticipated expiration: 2017-04-20

Abstract

The utility model provides a rice seed thrusting mechanism used in transplanting device. The technical proposal of the utility model is that a conjugate cam which consists of two parallel cams which are not a same plane is arranged on a driving shaft; one end of a swing arm which is corresponding to the conjugate cam is provided with two rollers which are joggled with the two cams; and the other end of the swing arm is movably connected with a seed thrusting device through a moving joint. With the above structure, the utility model not only has not to overcome the acting force of the seed thrusting spring, but also changes the contact between the poking fork and the cam into a rolling friction. Compared with the prior art, the utility model has the advantages of energy conservation, decreasing the abrasion, reducing the shock, novel design, rational structure, flat and reliable control, portable and flexible operation, prolonging the useful time, effectively increasing the efficiency and being suitable to be generalized and used.

Description

Rice transplanter pushes away rice seedling distribution mechanism

Technical field: the utility model relates to the rice transplanter pulling seedlings device in a kind of agricultural mechanization equipment.

Background technology: the rice seedling distribution mechanism that pushes away of rice transplanter is an a kind of timing reciprocator, and it is indispensable important component part in the rice transplanter manipulator.For the operation quality of guaranteeing rice transplanter has been brought into play significant positive role.The existing rice seedling distribution mechanism that pushes away is to fix a cam with key on driving shaft, a hinged shift fork on bearing pin, the afterbody and the described cam meshing of shift fork are closed, head then be provided with the guide pad of stirring seedling pushing device and be connected, and above the shift fork and plant and a compression is set between the arm body lid pushes away that the seedling spring constitutes.Owing to push away rice seedling distribution mechanism in implementing the rice transplanting operation process, to carry out work with the frequency of per minute 150 times, in this process, must overcome spring greater than 100N push away the seedling acting force of the spring, certainly will cause disadvantages such as consumes energy height, mechanical wear is fast, relative vibration is big, service life is short like this.

Summary of the invention: the utility model be for solve existing rice transplanter push away rice seedling distribution mechanism finish push away consumes energy height in the seedling process, mechanical wear is fast, relative vibration is big, cause the problem of lacking service life.

Scheme of the present utility model is as described below: this utility model comprise plant the arm body, plant the arm lid, gland, fairlead, separation pin, screw, driving shaft, connecting key, cam, bearing pin and seedling pushing device, also comprise movable joint, it is be parallel to each other and the conjugate cam formed of at grade two cams not by being provided with on driving shaft, swing arm one end at corresponding conjugate cam is provided with two rollers that close with cam meshing, realizes through movable joint flexible connection seedling pushing device at the other end of swing arm.

The beneficial effect of this utility model: because this utility model is provided with conjugate cam on driving shaft, the roller that closes with the conjugation cam meshing is controlled swing arm, add organic cooperation of movable joint, it is pushed away in the seedling process finishing, not only need not overcome the active force that pushes away the seedling spring, and make shift fork become rolling friction, compared with prior art saved energy consumption, reduced wearing and tearing, reduced vibrations with contacting of cam.Have simultaneously inventive concept novelty, topology layout rationally, steadily reliable, the operation light and flexible of control, increase the service life, effectively raise the efficiency, suitable advantage such as apply.

Description of drawings:

Fig. 1 is that rice transplanter of the present utility model pushes away the rice seedling distribution mechanism structural representation;

Fig. 2 is the vertical view of Fig. 1.

Embodiment: pushing away rice seedling distribution mechanism by rice transplanter shown in Figure 1, is improved a kind of new-type rice seedling distribution mechanism that pushes away on the prior art basis.It is the conjugate cam of forming through connecting key 2

stationary cams

3,15 on the set driving shaft 1 in planting arm body 14.

Cam

3,15 is parallel to each other and not at grade.Flexibly connect swing arms 6 planting on the arm body 14 fixing bearing pin 5, swing arm 6 one ends are provided with the both sides that two rollers, 4,13, two

rollers

4,13 that are meshed with

conjugate cam

3,15 are separately positioned on the line at the center of

cam

3,15 and bearing pin 5 centers.And form kinematic pair by the roller in

cam

3,15 and the swing arm 64,13.And swing arm 6 other ends connect seedling pushing device 8 through movable joint 10.Seedling pushing device 8 can move back and forth up and down in fairlead 11.Separating pin 7 plants on the arm by being fixed at gland 9 and screw 16.

During the utility model work, push away the seedling section if cam 3 is in, cam 15 just was in follow-up section when driving rolls 13 moved, and at this moment roller 13 is done and moved freely.When cam 3 finished to push away the seedling section and enters intermittently section, cam 15 also entered intermittently section simultaneously.Promote section when cam 15 enters, when driving rolls 13 moved, cam 3 just was in follow-up section, roller 4 is done moved freely.When cam 15 entered intermittently section, cam 3 also entered intermittently section simultaneously.So move in circles, can realize automatic reciprocating control the rice transplanter seedling pushing device.

Claims

1. a rice transplanter pushes away rice seedling distribution mechanism, comprise and plant arm body (14), plant arm lid (12), gland (9), fairlead (11), separate pin (7), screw (16), driving shaft (1), connecting key (2), cam (3,15), bearing pin (5) and seedling pushing device (8), also comprise movable joint (10), it is characterized in that: on driving shaft (1), be provided with and be parallel to each other and at grade two cams (3 not, 15) conjugate cam of Zu Chenging, swing arm (6) one ends at corresponding conjugate cam are provided with and cam (3,15) two rollers (4 that are meshed, 13), flexibly connecting seedling pushing device (8) at swing arm (6) other end through movable joint (10) constitutes.

2. rice transplanter according to claim 1 pushes away rice seedling distribution mechanism, it is characterized in that: two rollers in the swing arm (6) (4,13) are separately positioned on the line both sides that center connected of the center of cam (3,15) to bearing pin (5).