CN214961180U

CN214961180U - Automatic feeding and sharpening structure for green feed harvester

Info

Publication number: CN214961180U
Application number: CN202120727426.2U
Authority: CN
Inventors: 王连山
Original assignee: Shijiazhuang Meidi Machinery Co ltd
Current assignee: Shijiazhuang Meidi Machinery Co ltd
Priority date: 2021-04-09
Filing date: 2021-04-09
Publication date: 2021-12-03
Anticipated expiration: 2031-04-09

Abstract

The utility model provides an automatic feeding and sharpening structure for a green feed harvester, which comprises side plates respectively arranged at the two axial ends of a chopping roller, and further comprises a sharpening device, a conveying device, a moving device and a sharpening starting device; a guide shaft and a guide rail are fixedly arranged between the two side plates, the guide shaft is parallel to the guide rail, and the axial direction of the guide shaft is parallel to the axial direction of the chopping roller; the knife grinder is positioned between the guide shaft and the guide rail, the knife grinder is slidably mounted on the guide shaft and the guide rail, and the lower part of the knife grinder is contacted with the chopping moving knife. The utility model discloses make green fodder harvester accomplish the work of polishing of sword under the condition that does not dismantle, save a large amount of manual works and time.

Description

Automatic feeding and sharpening structure for green feed harvester

Technical Field

The utility model relates to a green fodder harvester auxiliary structure especially relates to an automatic feed structure of whetting a knife for green fodder harvester.

Background

The green fodder harvester is one agricultural machine for harvesting green grass, oat, beet stem and leaf and other short green fodder crop and consists of mainly cutting bench, feeding structure, rotary cutter, throwing structure, etc. The main working part is a rotary chopper which directly influences the feed quality level of the ensilage machine. However, after the green fodder harvester works for a long time, the chopping moving blades on the chopping roller in the shell of the rotary chopper are abraded in different degrees, the sharpness of the chopping moving blades is reduced, the cutting length and the cross section of the produced materials cannot meet the requirements, the chopping moving blades on the rotary chopper need to be manually detached, ground and then installed again, the maintenance cost is high, the production time is delayed, and the production efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an automatic feed structure of whetting a knife for green fodder harvester to solve the problem that the maintenance cost that exists of current green fodder machine because of grinding through artificial mode and cutting up on the rotatory chopper and leading to moves the sword is high, production cycle is long, production efficiency hangs down.

The utility model discloses a realize like this:

an automatic feeding and grinding structure for a green feed harvester comprises side plates which are respectively arranged at two axial ends of a chopping roller, and further comprises a grinding device, a conveying device, a moving device and a grinding starting device for adjusting the moving device;

a guide shaft and a guide rail are fixedly arranged between the two side plates, the guide shaft is parallel to the guide rail, and the axial direction of the guide shaft is parallel to the axial direction of the chopping roller; the knife sharpening device is positioned between the guide shaft and the guide rail, the knife sharpening device is slidably mounted on the guide shaft and the guide rail, and the lower part of the knife sharpening device is contacted with the chopping moving knife;

the knife sharpening device is arranged at the bottom end of the conveying device, the conveying device is driven by the moving device to slide along the direction parallel to the axial direction of the guide shaft, the moving device is a hydraulic cylinder or an air cylinder, the piston rod end of the moving device is fixedly connected with the side plate, and the cylinder seat of the moving device is fixedly connected with the conveying device.

The moving device is a hydraulic cylinder.

The hydraulic cylinder adopts a double-piston-rod hydraulic cylinder, and two piston rod ends of the hydraulic cylinder are fixedly connected with the two side plates respectively.

The knife sharpening starting device comprises a knife sharpening starting rod, a limiting plate, a two-position four-way reversing valve, a baffle, a first stop pin and a second stop pin, wherein the baffle is fixedly installed on the inner side of a left side plate, the knife sharpening starting rod sequentially slides from left to right to pass through the left side plate, the baffle, the first stop pin and the second stop pin are respectively and fixedly installed on the knife sharpening starting rods on the two sides of the baffle, the two-position four-way reversing valve is communicated with the moving device through a pipeline, the number of the limiting plates is 2, and the limiting plates are respectively installed on the knife sharpening starting rods.

The conveying device comprises a fixing device, two conveying chains and two chain wheels, the two chain wheels are rotatably installed at two ends of the front side of the cylinder base of the moving device respectively, the two conveying chains are two in number, one ends of the two chains are installed in the middle between the two side plates through the fixing device, the other ends of the two chains are connected with the knife sharpening device, and the two chains are meshed and wound on the two chain wheels to form two closed loops.

Knife sharpening device includes whetstone seat, ratchet cardboard, ratchet stirring piece, rotatory ratchet and rotatory whetstone, whetstone seat with the guiding axle with guide rail sliding connection, and with the chain is connected, rotatory ratchet pass through the swivel nut rotate connect in whetstone seat top, the ratchet cardboard blocks rotatory ratchet fixed mounting in on the whetstone seat, the ratchet stirring piece fixed mounting in on the curb plate, just the ratchet stirring piece with rotatory ratchet is located the coplanar, the swivel nut lower part is passed whetstone seat with rotatory whetstone is connected.

The rotary knife stone is cylindrical.

The inner diameter of the threaded sleeve is larger than the outer diameter of the rotary knife stone, and the threaded sleeve is fixed with the rotary knife stone through the tensioning ring arranged inside.

Fixing device includes left fixed block, right fixed block, adjusting bolt and U type fork, left side fixed block fixed mounting is in two in the middle of the curb plate, the lower extreme of left side fixed block and the one end fixed connection of one of them conveying chain, the U type fork cross-section is the U type, left side fixed block with U type fork opening inside fixed connection, right side fixed block butt in left side fixed block right side and swing install in the U type fork, the lower extreme of right side fixed block and the one end fixed connection of another conveying chain, adjusting bolt pass through the screw thread install in U type fork closing end, adjusting bolt's axis direction with the moving direction of right side fixed block is unanimous, can realize the tensioning of chain through rotating adjusting bolt.

The utility model has the advantages that:

firstly, the utility model discloses make the green fodder harvester accomplish the polishing work of sword under the condition of not dismantling, save a large amount of manual works.

Second, rotatory whetstone can be dismantled, and rotatory whetstone is the vulnerable part, can dismantle the feasible the utility model discloses cost of maintenance reduces.

Drawings

Fig. 1 is a schematic front perspective view of the present invention;

FIG. 2 is a schematic side perspective view of the present invention;

FIG. 3 is a schematic view of the knife grinder of the present invention;

FIG. 4 is a schematic view of the knife grinder of the present invention;

FIG. 5 is a schematic perspective view of the knife grinder of the present invention;

fig. 6 is a schematic structural view of the mobile feeding device of the present invention;

fig. 7 is a schematic structural view of the fixing device of the present invention.

In the figure: 1. a sharpening starting lever; 2. a limiting plate; 3. a reversing valve handle; 4. a two-position four-way reversing valve; 5. a mobile device; 7. a guide shaft; 8. a ratchet wheel snap gauge; 9. a sharpening stone seat; 11. rotating the ratchet wheel; 12. a conveyor chain; 13. a fixing device; 14. a ratchet wheel toggle block; 15. a guide rail; 16. rotating the sharpening stone; 17. a knife guard cover; 18. a protective cover; 19. a knife sharpening starting device; 20. a conveying device; 21. a knife grinder; 33. a first stop pin; 34. a second stop pin; 35. a side plate; 36. a baffle plate; 37. a sprocket; 131. a left fixed block; 132. a right fixed block; 133. adjusting the bolt; 134. a U-shaped fork.

Detailed Description

The present invention is further illustrated by the following examples, which are given by way of illustration only and are not intended to limit the scope of the present invention in any way.

As shown in fig. 1 and 6, an automatic feeding knife sharpening structure for a green fodder harvester comprises a side plate 35, a knife sharpening device 21, a conveying device 20, a knife sharpening starting device 19 and a moving device 5 which are respectively arranged at two axial ends of a chopping roller.

The knife sharpening device 21 comprises a knife stone seat 9, a ratchet clamping plate 8, a ratchet poking block 14, a rotary ratchet 11 and a rotary knife stone 16, the knife stone seat 9 is connected with a guide shaft 7 and a guide rail 15 in a sliding mode, the rotary ratchet 11 is connected above the knife stone seat 9 through a threaded sleeve in a rotating mode, the ratchet clamping plate 8 clamps the rotary ratchet 11 and is fixedly installed on the knife stone seat 9, the ratchet poking block 14 is fixedly installed on a side plate 35, the ratchet poking block 14 and the rotary ratchet 11 are located on the same plane, and the lower portion of the threaded sleeve penetrates through the knife stone seat 9 and is connected with the rotary knife stone 16. When the sharpening stone seat 9 moves to the right limit position each time, the sharpening stone seat touches the ratchet wheel poking block 14, the ratchet wheel poking block 14 rotates the rotary ratchet wheel 11 by one tooth, and the threaded sleeve drives the rotary sharpening stone 16 to rotate by an angle and move downwards, so that sharpening is facilitated. In this embodiment, the rotary whetstone 16 is cylindrical, so that the self-loss of the rotary whetstone 16 is more uniform during sharpening, and the cutting edge formed by the movable knife is also uniform. The internal diameter of swivel nut is greater than the external diameter of rotatory whetstone 16 to lock rotatory whetstone and swivel nut together through inside tensioning ring, rotatory whetstone 16 can be dismantled, and when needing to be changed rotatory whetstone 16, the rotatory ratchet 11 of reverse rotation, through the separation of swivel nut and rotatory ratchet, demolish rotatory whetstone 16, the convenient change.

A guide shaft 7 and a guide rail 15 are fixedly arranged between the two side plates 35, the guide shaft 7 is parallel to the guide rail 15, the axial direction of the guide shaft 7 is parallel to the axial direction of the chopping roller, a knife stone seat 9 is positioned between the guide shaft 7 and the guide rail 15, the knife stone seat 9 is slidably arranged on the guide shaft 7 and the guide rail 15, and the lower part of the rotary knife stone 16 is contacted with the chopping moving knife.

Conveyor 20 includes fixing device 13, conveying chain 12 and sprocket 37, and sprocket 37 quantity is two, and two sprockets 37 rotate respectively and install in the cylinder base front side both ends of mobile device 5, and conveying chain 12 quantity is two, and the one end of two chains 12 is passed through fixing device 13 and is installed in two middle part between the curb plate 35, the other end is connected with knife sharpening device 21, and the meshing is simultaneously around locating two form two closed loops on the sprocket, and conveyor 20 slides along the direction parallel with guiding axle 7 axial under mobile device 5's drive.

Mobile device 5 is pneumatic cylinder or cylinder, and mobile device 5's tailpiece of the piston rod and curb plate 35 fixed connection, mobile device 5's cylinder base and 20 fixed connection of conveyor, the utility model discloses mobile device adopts two piston rod pneumatic cylinders, the two tailpiece of the piston rod of pneumatic cylinder respectively with two curb plate 35 fixed connection. The knife sharpening starting device 19 is equivalent to a limit switch of the moving device 5, the knife sharpening starting device 19 comprises a knife sharpening starting rod 1, a limit plate 2, a two-position four-way reversing valve 4, a baffle plate 36, a first stop pin 33 and a second stop pin 34, the baffle plate 36 is fixedly installed on the inner side of a side plate 35 on the left side, the knife sharpening starting rod 1 sequentially slides from left to right to penetrate through the side plate 35 on the left side and the baffle plate 36, the first stop pin 33 and the second stop pin 34 are respectively and fixedly installed on the knife sharpening starting rod 1 on the two sides of the baffle plate 36, the two-position four-way reversing valve 4 is fixedly arranged at the lower end of the moving device 5 and is communicated with the moving device 5 through a pipeline, in the embodiment, the two-position four-way reversing valve 4 is a two-position four-way manual reversing valve, a reversing valve handle 3 is arranged at one end of the two-position four-way manual reversing valve, the liquid flow direction in the switching valve can be switched through the reversing valve handle 3, the number of the limit switch is 2 in the prior art, limiting plates 2 are respectively installed on the sharpening starting rod 1, and the two limiting plates 2 can touch the reversing valve handle 3 at the left limiting position and the right limiting position of the reversing valve handle 3 to complete reversing.

When the knife needs to be sharpened, the chopper is in a rotating state, then the knife sharpening starting rod 1 is moved, at the moment, the second stop pin 34 on the knife sharpening starting rod 1 moves to the left side to be contacted with the baffle 36 to reach the limit position, the limiting plate 2 on the right side moves to the left side to be contacted with the reversing valve handle 3, the reversing valve handle 3 moves to the left side to reverse the two-position four-way reversing valve 4, the moving device 5 moves to the left side to drive the knife sharpening device 21 to move to the left side through the conveying device 20, when the reversing valve handle 3 contacts the limiting plate 2 on the left side along with the moving device 5 moving to the left side, the reversing valve handle 3 moves to the right side to reverse the two-position four-way reversing valve 4, the moving device 5 drives the knife sharpening device 21 to move to the right side through the conveying device 20, the actions are repeated, the knife sharpening device 21 rubs with the rotating knife, the knife sharpening starting rod 1 is reset, at the moment, the reversing valve handle 3 cannot be contacted with the limiting plate 2 on the right side when moving to the limit position, the action is stopped.

As shown in fig. 7, the fixing device 13 includes a left fixing block 131, a right fixing block 132, an adjusting bolt 133 and a U-shaped fork 134, the left fixing block 131 is fixedly installed between the two side plates 35, the lower end of the left fixing block 131 is fixedly connected with one end of one of the conveying chains 12, the cross section of the U-shaped fork 134 is U-shaped, the left fixing block 131 is fixedly connected with the inner side of the opening of the U-shaped fork 134, the right fixing block 132 abuts against the right side of the left fixing block 131 and is installed in the U-shaped fork 134 in a swinging manner, the lower end of the right fixing block 132 is fixedly connected with one end of the other conveying chain 12, the adjusting bolt 133 is installed at the closed end of the U-shaped fork 134 through a thread, and the axial direction of the adjusting bolt 133 is consistent with the moving direction of the right fixing block 132. The distance between the left fixing block 131 and the right fixing block 132 can be adjusted by rotating the adjusting bolt 133, and the gap at the closed position of the conveying chain 12 can be adjusted to adjust the tightness of the conveying chain.

The above description in this specification is merely illustrative of the present invention. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides an automatic feed structure of whetting a knife for green fodder harvester, is including setting up the curb plate at shredding roller axial both ends respectively, its characterized in that: the device also comprises a knife sharpening device, a conveying device, a moving device and a knife sharpening starting device;

2. The automatic feed sharpening structure for a greenfeed harvester according to claim 1, wherein the moving means is a hydraulic cylinder.

3. The automatic feeding knife sharpening structure for the green feed harvester is characterized in that the hydraulic cylinder adopts a double-piston-rod hydraulic cylinder, and two piston rod ends of the hydraulic cylinder are fixedly connected with two side plates respectively.

4. The automatic feeding grinding structure for the green feed harvester according to claim 1, wherein the grinding start device comprises a grinding start rod, a limiting plate, a two-position four-way reversing valve, a baffle, a first stop pin and a second stop pin, the baffle is fixedly installed on the inner side of a left side plate, the grinding start rod sequentially slides from left to right to penetrate through the left side plate and the baffle, the first stop pin and the second stop pin are respectively and fixedly installed on the grinding start rods on two sides of the baffle, the two-position four-way reversing valve is communicated with the moving device through a pipeline, the number of the limiting plates is 2, and the limiting plates are respectively installed on the grinding start rod.

5. The automatic feeding and grinding structure for the green fodder harvester is characterized in that the conveying device comprises a fixing device, two conveying chains and two chain wheels, the two chain wheels are rotatably installed at two ends of the front side of the cylinder base of the moving device respectively, one ends of the two conveying chains are installed in the middle between the two side plates through the fixing device, the other ends of the two conveying chains are connected with the grinding device, and the two conveying chains are meshed and wound on the two chain wheels to form two closed loops.

6. The automatic feeding knife sharpening structure for the green fodder harvester is characterized in that the knife sharpening device comprises a knife sharpening stone seat, a ratchet clamping plate, a ratchet poking block, a rotary ratchet and a rotary knife sharpening stone, the knife sharpening stone seat is connected with the guide shaft and the guide rail in a sliding mode, the rotary ratchet is connected above the knife sharpening stone seat in a rotating mode through a screw sleeve, the rotary ratchet is fixedly installed on the knife sharpening stone seat in a clamping mode through the ratchet clamping plate, the ratchet poking block is fixedly installed on the side plate and located on the same plane with the rotary ratchet, and the lower portion of the screw sleeve penetrates through the knife sharpening stone seat and is connected with the rotary knife sharpening stone.

7. The automatic feeding sharpening structure for the green fodder harvesting machine according to claim 6, wherein the rotary whetstone is cylindrical.

8. The automatic feeding sharpening structure for the green fodder harvester of claim 7, wherein the inner diameter of the screw sleeve is larger than the outer diameter of the rotary sharpening stone, and the screw sleeve is fixed with the rotary sharpening stone through a tension ring arranged inside.

9. The automatic feeding knife sharpening structure for the green fodder harvesting machine according to claim 5, the fixing device comprises a left fixing block, a right fixing block, an adjusting bolt and a U-shaped fork, the left fixing block is fixedly arranged between the two side plates, the lower end of the left fixed block is fixedly connected with one end of one of the conveying chains, the section of the U-shaped fork is U-shaped, the left fixed block is fixedly connected with the inner side of the opening of the U-shaped fork, the right fixed block is abutted against the right side of the left fixed block and is arranged in the U-shaped fork in a swinging manner, the lower end of the right fixed block is fixedly connected with one end of the other conveying chain, the adjusting bolt is arranged at the closed end of the U-shaped fork through threads, the axis direction of the adjusting bolt is consistent with the moving direction of the right fixing block, and the tensioning of the chain can be realized by rotating the adjusting bolt.