阅读说明：本技术 一种用于打捆机中捆绳针的传动装置 (Transmission device for bundling rope needle in bundling machine ) 是由 吴剑兴 印鹏 于 2020-11-18 设计创作，主要内容包括：本发明公开了一种用于打捆机中捆绳针的传动装置,包括离合装置、传动分合装置和针传动装置,所述的针传动装置包括针总成、上连接臂、下连接臂以及针传动轴,所述的针传动轴两端部处均设有轴承座,并通过传动轴轴承与轴承座转动连接,针传动轴的一端与针总成相连接,另一端与下连接臂相连接,所述的上连接臂的下端与下连接臂转动连接,上连接臂的上端与转座的尾端转动连接。本发明通过曲柄摇杆机构完成针的往复运动；通过转座与底座的分合来实现捆绳针输入动力分合,通过与转座连接的动力输出轴可以将动力同步传递至打结器,实现打结器的可控工作；可结合机械的离合装置,便捷地实现草捆达到设定的宽度后,自动执行打捆工作。(The invention discloses a transmission device for a binding rope needle in a bundling machine, which comprises a clutch device, a transmission on-off device and a needle transmission device, wherein the needle transmission device comprises a needle assembly, an upper connecting arm, a lower connecting arm and a needle transmission shaft, bearing seats are arranged at two end parts of the needle transmission shaft and are rotatably connected with the bearing seats through transmission shaft bearings, one end of the needle transmission shaft is connected with the needle assembly, the other end of the needle transmission shaft is connected with the lower connecting arm, the lower end of the upper connecting arm is rotatably connected with the lower connecting arm, and the upper end of the upper connecting arm is rotatably connected with the tail end of a rotary seat. The reciprocating motion of the needle is completed through the crank rocker mechanism; the power input by the rope binding needle is switched on and off through the switching on and off of the rotary seat and the base, and the power can be synchronously transmitted to the knotter through the power output shaft connected with the rotary seat, so that the controllable work of the knotter is realized; can combine mechanical clutch, realize conveniently that the bale reaches behind the width of settlement, automatic execution is beaten the work.)

1. A transmission device for a rope binding needle in a bundling machine is characterized by comprising a transmission opening and closing device and a needle transmission device, wherein the transmission opening and closing device comprises a power input chain wheel, a protruding block is arranged on the inner wall of the power input chain wheel, and a power output shaft penetrates through the axis of the power input chain wheel; one end of the power output shaft is connected with the knotter, the other end of the power output shaft is connected with the rotary seat, the rotary seat is 7-shaped, the middle part of the rotary seat is in forcipate-shaped rotary connection with the rotary arm through a pin shaft, the rotary arm is 7-shaped and shorter than the rotary seat, and a pressure spring is clamped between the head of the rotary arm and the head of the rotary seat;

the needle transmission device comprises a needle assembly, an upper connecting arm, a lower connecting arm and a needle transmission shaft, wherein bearing seats are arranged at two end parts of the needle transmission shaft and are rotatably connected with the bearing seats through transmission shaft bearings, one end of the needle transmission shaft is connected with the needle assembly, the other end of the needle transmission shaft is connected with the lower connecting arm, the lower end of the upper connecting arm is rotatably connected with the lower connecting arm, and the upper end of the upper connecting arm is rotatably connected with the tail end of the rotary seat.

2. The transmission device for the bundling wire needle of the bundling machine according to claim 1, wherein the transmission device further comprises a clutch device, the clutch device comprises a pull rod limiting plate, a plug pin penetrates through the pull rod limiting plate, and an elastic cylindrical pin penetrates through the upper part of the plug pin; a spring is sleeved in the middle of the plug pin, an adjusting nut is arranged at the upper end of the plug pin, the upper end of the spring abuts against the surface of the adjusting nut, and the lower end of the spring abuts against the bottom wall of the pull rod limiting plate; the lower end of the bolt is rotatably connected with a circular arc-shaped connecting plate through a first pin shaft, the lower end of the connecting plate is rotatably connected with one end of a U-shaped shaft lever through a second pin shaft, the other end of the shaft lever is connected with a horizontally arranged synchronizing shaft, a vertical angle is formed at the connecting end of the synchronizing shaft and the shaft lever, the other end of the synchronizing shaft is connected with the clutch arm through a spline, and two end parts of the synchronizing shaft are horizontally arranged on two bearing blocks through synchronizing shaft bearings; the upper end of the bolt is connected with an excitation block, and the excitation block is positioned below the rotating arm.

3. The transmission device for the binding rope needle in the binding machine according to the claims 1-2, characterized in that when the bolt is in the low position, the excitation block is disengaged from the motion track of the rotating arm; when the bolt is positioned at a high position, the excitation block is positioned in the motion track of the rotating arm.

4. The drive for a banding needle of a banding machine as claimed in claim 2, characterized in that said adjusting nut is composed of two superimposed thin nuts.

5. The transmission device for the needle of the rope of the bundling machine according to claim 2, wherein the upper end of the clutch arm is curved in a direction away from the grass inlet of the bundling machine.

6. The transmission for a lashing wire needle of a baler of claim 2, wherein a washer is disposed between the adjusting nut and the spring.

7. The transmission device for the twine needle of the baler according to claim 1, wherein a compression spring fixture block is arranged on the head of the rotating arm, and a lower end of the compression spring is sleeved on the compression spring fixture block.

8. The transmission device for the lashing wire needle of the baler of claim 1, wherein a stop block surrounding an upper end of the compression spring is arranged at a head of the swivel seat.

9. The transmission device for the rope binding needle of the bundling machine as claimed in claim 1, wherein the upper connecting arm has a sleeve welded to both ends thereof and is rotatably connected to the rotary seat and the lower connecting arm respectively through sleeve bearings disposed in the sleeve.

10. The drive for a lashing wire needle of a baler of claim 1, wherein the length of said lower connecting arm is greater than the radius of rotation of said swivel mount.

Technical Field

The invention relates to the technical field of transmission of a bundling machine, in particular to a transmission device for a bundling rope needle in the bundling machine.

Background

At present, the straws harvested and threshed in partial areas need to be aired and then recovered, in order to prevent the straws from being rotted due to rainy days or water in the ground, the straws can only be bundled manually and vertically aired, and the self-propelled semi-feeding harvesting bundling machine can realize the whole-process mechanization of the harvesting bundling and airing link, greatly improve the harvesting efficiency and provide a powerful guarantee for season harvest.

In the prior art, the transmission structure of a binding rope needle of the binding machine is complex, the integration degree is low, the linkage is not strong, the steps controlled by an operator are more, and the long-time work of the binding machine is inconvenient.

Disclosure of Invention

The invention aims to solve the defects of the prior art, and provides a transmission device for a rope binding needle in a bundling machine, which comprises a transmission opening and closing device and a needle transmission device, wherein the transmission opening and closing device comprises a power input chain wheel, a protruding block is arranged on the inner wall of the power input chain wheel, and a power output shaft penetrates through the axis of the power input chain wheel; one end of the power output shaft is connected with the knotter, the other end of the power output shaft is connected with the rotary seat, the rotary seat is 7-shaped, the middle part of the rotary seat is in forcipate-shaped rotary connection with the rotary arm through a pin shaft, the rotary arm is 7-shaped and shorter than the rotary seat, and a pressure spring is clamped between the head of the rotary arm and the head of the rotary seat;

the needle transmission device comprises a needle assembly, an upper connecting arm, a lower connecting arm and a needle transmission shaft, wherein bearing seats are arranged at two end parts of the needle transmission shaft and are rotatably connected with the bearing seats through transmission shaft bearings, one end of the needle transmission shaft is connected with the needle assembly, the other end of the needle transmission shaft is connected with the lower connecting arm, the lower end of the upper connecting arm is rotatably connected with the lower connecting arm, and the upper end of the upper connecting arm is rotatably connected with the tail end of the rotary seat.

In order to realize the automatic control of the bundling machine, the bundling is automatically started after the bale reaches the set width, furthermore, the transmission device also comprises a clutch device, the clutch device comprises a pull rod limiting plate, a plug pin penetrates through the pull rod limiting plate, and an elastic cylindrical pin penetrates through the upper part of the plug pin; a spring is sleeved in the middle of the plug pin, an adjusting nut is arranged at the upper end of the plug pin, the upper end of the spring abuts against the surface of the adjusting nut, and the lower end of the spring abuts against the bottom wall of the pull rod limiting plate; the lower end of the bolt is rotatably connected with a circular arc-shaped connecting plate through a first pin shaft, the lower end of the connecting plate is rotatably connected with one end of a U-shaped shaft lever through a second pin shaft, the other end of the shaft lever is connected with a horizontally arranged synchronizing shaft, a vertical angle is formed at the connecting end of the synchronizing shaft and the shaft lever, the other end of the synchronizing shaft is connected with the clutch arm through a spline, and two end parts of the synchronizing shaft are horizontally arranged on two bearing blocks through synchronizing shaft bearings; the upper end of the bolt is connected with an excitation block, and the excitation block is positioned below the rotating arm.

Furthermore, when the bolt is positioned at a low position, the excitation block is separated from the motion track of the rotating arm; when the bolt is positioned at a high position, the excitation block is positioned in the motion track of the rotating arm.

In order to facilitate the adjustment of the bundling machine and realize the effect of being suitable for the bales with different width requirements, furthermore, the adjusting nut consists of two superposed thin nuts.

Furthermore, a gasket is arranged between the adjusting nut and the spring.

In order to avoid the clutch arm being hooked by the bales, the upper end of the clutch arm is further bent in an arc shape, and the bending direction deviates from the straw inlet of the baler.

Based on the preferred scheme, the clutch device is suitable for bales with different width requirements, when no bale reaches the set width, the clutch arm is in the initial position, the excitation block on the bolt is positioned in the motion track of the rotating arm to block the rotating arm, the pressure spring is compressed, the rotating seat is attached to the rotating arm, the rotating arm is not abutted to the protruding block any more, namely the rotating seat is not subjected to rotating force any more, the rotation is stopped, and at the moment, the upper connecting arm also stops moving;

when the bale reaches the set width, the clutch arm is pushed to the designated position, the plug pin of the clutch device is downwards positioned to drive the excitation block to downwards move and is not positioned in the motion track of the rotating arm any more, the pressure spring on the rotating arm resets, the rotating arm abuts against the protruding block in the power input chain wheel and is driven by the power input chain wheel to rotate, the upper end of the upper connecting arm which is rotatably connected with the rotating seat synchronously rotates, and then the needle assembly is driven to perform pendulum motion, so that transmission is realized.

In order to better fix the pressure spring, a pressure spring clamping block is further arranged on the head of the rotating arm, and the lower end of the pressure spring is sleeved on the pressure spring clamping block.

Furthermore, a limiting block surrounding the upper end of the pressure spring is arranged at the head of the rotary seat.

In order to better realize transmission, furthermore, sleeves are welded at two ends of the upper connecting arm and are respectively and rotatably connected with the rotary seat and the lower connecting arm through sleeve bearings arranged in the sleeves.

Furthermore, the length of the lower connecting arm is larger than the rotating radius of the rotary seat.

The operation principle is as follows: according to the invention, the controllable power input of the needle transmission device is realized by utilizing the transmission dividing and combining device, when the rotating arm is blocked, the rotating arm stops moving, the pressure spring is compressed, the rotating arm is attached to the rotating seat, and the rotating arm is not abutted to a protruding block in the power input chain wheel any more, namely the rotating seat is not subjected to rotating force any more; the upper connecting arm rotationally connected with the rotary seat stops moving, and the needle assembly does not move at the moment;

when the rotating arm is not blocked, the pressure spring resets, the rotating arm is separated from the rotating seat, the rotating arm abuts against a protruding block in the power input chain wheel, the rotating seat and the power input chain wheel synchronously rotate at the moment, the upper end of an upper connecting arm connected with the rotating seat circularly moves, a lower connecting arm is pulled by the upper connecting arm and also moves, and the highest moving point of the lower connecting arm does not cross over a dead point, so that the lower connecting arm only can do reciprocating motion with an arc track, a needle assembly synchronously connected through a needle transmission shaft also does reciprocating pendulum motion, and bundling is realized; when the swivel mount is rotatory, power output shaft through swivel mount connection also exports power to knotter in step for knotter and needle assembly's motion is synchronous, ties when the bundling rope in the needle assembly reachs the assigned position and knot.

Has the advantages that: (1) the invention completes the reciprocating motion of the needle through the crank rocker mechanism, and has simple structure, stability and reliability.

(2) The power output shaft connected with the rotating seat can transmit power to the knotter synchronously, so that the knotter can work controllably.

(3) The invention has reasonable and reliable transmission, can be combined with a mechanical clutch device, and conveniently and automatically executes bundling work after the bale reaches the set width, thereby ensuring stable rope feeding and returning actions of the rope bundling needle, strong reliability and high automation degree.

(4) The clutch arm is connected with the synchronizing shaft through the spline, the angle of the clutch arm can be freely adjusted through the spline, and the requirements of different bale widths are quickly met.

Drawings

FIG. 1 is a first perspective view of a transmission for a twine pin of a baler in an operational state;

FIG. 2 is a second perspective view of the transmission for the twine pin of the baler in a stopped state;

FIG. 3 is a front view of the drive engaging and disengaging gear;

FIG. 4 is a perspective view of the drive engaging and disengaging device;

FIG. 5 is a schematic cross-sectional view of the needle drive assembly;

FIG. 6 is a front view of the drive engaging and disengaging device and the needle drive;

FIG. 7 is a front view of the transmission clutches and clutches;

FIG. 8 is a front view of the clutch device;

FIG. 9 is a schematic cross-sectional view of a clutch device;

FIG. 10 is a schematic view of the motion trajectories of the needle gear and the drive engaging and disengaging gear;

FIG. 11 is a third perspective view of the transmission for the twine pin of the baler;

in the figure: 1. the transmission clutch device comprises a transmission clutch device, 2, a needle transmission device, 3, a clutch device, 101, a power input chain wheel, 102, a protruding block, 103, a power output shaft, 104, a rotary seat, 105, a pin shaft, 106, a rotary arm, 107, a pressure spring, 108, a pressure spring fixture block, 109, a limiting block, 201, a needle assembly, 202, an upper connecting arm, 203, a lower connecting arm, 204, a needle transmission shaft, 205, a bearing seat, 206, a sleeve, 301, a pull rod limiting plate, 302, a plug pin, 303, an elastic cylindrical pin, 304, a spring, 305, an adjusting nut, 306, a connecting plate, 307, a first pin shaft, 308, a second pin shaft, 309, a shaft rod, 310, a synchronizing shaft, 311, a clutch arm, 312 and an excitation block.

Detailed Description

For the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.

As shown in fig. 1-2 and fig. 11, a transmission device for a rope binding needle in a bundling machine comprises a clutch device, a transmission engaging and disengaging device and a needle transmission device, as shown in fig. 3-4, the transmission engaging and disengaging device 1 comprises a power input sprocket 101, a protruding block 102 is arranged on the inner wall of the power input sprocket 101, and a power output shaft 103 is arranged at the axis of the power input sprocket 101 in a penetrating manner; one end of the power output shaft 103 is connected with a knotter (not shown in the figure), the other end is connected with a swivel base 104, the swivel base 104 is in a 7 shape, the middle part of the swivel base 104 is connected with a rotating arm 106 in a pincer-shaped rotating manner through a pin shaft 105, the rotating arm 106 is in a 7 shape shorter than the swivel base 104, and a pressure spring 107 is clamped between the head of the rotating arm 106 and the head of the swivel base;

in this embodiment, a compression spring fixture block 108 is disposed on the head of the rotating arm, and a lower end of the compression spring 107 is sleeved on the compression spring fixture block 108; a limiting block 109 surrounding the upper end of the pressure spring 107 is arranged at the head of the rotary seat 104.

As shown in fig. 5-6, the needle driving device includes a needle assembly 201, an upper connecting arm 202, a lower connecting arm 203 and a needle transmission shaft 204, the two ends of the needle transmission shaft are respectively provided with a bearing seat 205 and rotatably connected with the bearing seats 205 through a transmission shaft bearing, one end of the needle transmission shaft 204 is connected with the needle assembly 201, the other end is connected with the lower connecting arm 203, the lower end of the upper connecting arm 202 is rotatably connected with the lower connecting arm 203, and the upper end of the upper connecting arm 202 is rotatably connected with the tail end of the rotation base 104.

In this embodiment, the two ends of the upper connecting arm 202 are welded with sleeves 206, and are respectively rotatably connected with the rotary seat 104 and the lower connecting arm 203 through sleeve bearings disposed in the sleeves 206.

In this embodiment, the length of the lower connecting arm 203 is greater than the rotation radius of the turret 104.

In this embodiment, as shown in fig. 7 to 9, the clutch device 3 includes a pull rod limiting plate 301, a plug pin 302 penetrates through the pull rod limiting plate 301, and an elastic cylindrical pin 303 penetrates through an upper portion of the plug pin 302; a spring 304 is sleeved in the middle of the bolt 302, an adjusting nut 305 is arranged at the upper end of the bolt located at the spring 304, the upper end of the spring 304 abuts against the surface of the adjusting nut 305, and the lower end of the spring 304 abuts against the bottom wall of the pull rod limiting plate 301; the lower end of the bolt 302 is rotatably connected with a circular arc-shaped connecting plate 306 through a first pin shaft 307, the lower end of the connecting plate 306 is rotatably connected with one end of a horseshoe-shaped shaft rod 309 through a second pin shaft 308, the other end of the shaft rod 309 is connected with a horizontally arranged synchronizing shaft 310, a vertical angle is formed at one end of the synchronizing shaft 310 connected with the shaft rod 309, the other end of the synchronizing shaft 310 is connected with a clutch arm 311 through a spline, and two end parts of the synchronizing shaft 310 are horizontally arranged on two bearing blocks 205 through synchronizing shaft bearings; the upper end of the bolt 302 is connected with an excitation block 312, and the excitation block 312 is positioned below the rotating arm.

In this embodiment, when the latch 302 is in the low position, the trigger block 312 is disengaged from the movement track of the rotating arm; when the bolt 302 is in the high position, the trigger block 312 is located in the path of the rotating arm.

In this embodiment, the adjusting nut 305 is composed of two stacked thin nuts; and a gasket is arranged between the adjusting nut and the spring.

In this embodiment, the upper end of the clutch arm is curved, and the bending direction deviates from the grass inlet of the bundling machine.

As shown in the motion trail of fig. 10, in this embodiment, the clutch device is suitable for bales with different width requirements, when no bale reaches the set width, the clutch arm is in the initial position, the excitation block on the latch pin is located in the motion trail of the rotating arm to block the rotating arm, the pressure spring is compressed, the rotating seat is attached to the rotating arm, the rotating arm no longer abuts against the protruding block, i.e. the rotating arm no longer receives the rotating force, stops rotating, at this time, the upper connecting arm also stops moving, the needle assembly does not move, the power output shaft does not rotate, and the knotter correspondingly stops working;

when the bale reaches the set width, the clutch arm is pushed to the designated position, the bolt of the clutch device is positioned downwards to drive the excitation block to move downwards and is not positioned in the motion track of the rotating arm any more, the pressure spring on the rotating arm resets, the rotating arm abuts against the protruding block in the power input chain wheel and is driven by the power input chain wheel to rotate, the upper end of the upper connecting arm which is rotatably connected with the rotating seat synchronously rotates, the lower connecting arm is pulled by the upper connecting arm to move, and the highest motion point of the lower connecting arm cannot cross a dead point due to the fact that the length of the lower connecting arm is larger than the rotating radius of the rotating seat, so that the lower connecting arm only can do reciprocating motion with an arc track, the needle assemblies which are synchronously connected through the needle transmission shafts also do reciprocating pendulum motion, and the baling is realized; when the swivel mount is rotatory, power output shaft through swivel mount connection also exports power to knotter in step for knotter and needle assembly's motion is synchronous, ties when the bundling rope in the needle assembly reachs the assigned position and knot.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.