CN220211064U

CN220211064U - Green fodder harvester with rotary throwing cylinder

Info

Publication number: CN220211064U
Application number: CN202321966820.7U
Authority: CN
Inventors: 韩磊; 曹利
Original assignee: Zongshen Homyel Agricultural Machinery Manufacturing Co ltd
Current assignee: Zongshen Homyel Agricultural Machinery Manufacturing Co ltd
Priority date: 2023-07-25
Filing date: 2023-07-25
Publication date: 2023-12-22
Anticipated expiration: 2033-07-25

Abstract

The utility model discloses a green fodder harvester with a rotary throwing barrel, which comprises a frame, wherein a throwing fan, a base, a worm gear mechanism and a throwing barrel are arranged on the frame; wherein: a telescopic adjusting pull rod assembly is arranged between the base and the frame. The green feed harvester can reduce the adjustment difficulty of the gaps between the worm gears and the worm, so that the gaps between the worm gears and the worm can be more suitable, the normal use of the worm gears is ensured, and the abrasion of the worm gears and the worm can be reduced.

Description

Green fodder harvester with rotary throwing cylinder

Technical Field

The utility model relates to a green fodder harvester, in particular to a green fodder harvester with a rotary throwing cylinder.

Background

The green fodder harvester is one agricultural machine for harvesting green fodder, oat, beet stem and leaf and other short fodder crops. The main working parts comprise a material throwing barrel and a rotary chopper provided with a plurality of flail knives. In operation, the rotary chopper collects and chops the green feed crop, and the chopped green feed crop is fed into a trailer suspended behind by a throwing barrel.

At present, the rotating mechanism of the green fodder harvester has the main functions of three forms of transmission through a chain, a worm gear and a gear. When the chain is driven to rotate, the rotation amplitude of the material throwing barrel is large, the accurate positioning is not easy, and the material is easy to spray out of the vehicle to cause loss; the gear transmission mechanism has high transmission precision, good positioning and difficult material loss, but has higher manufacturing cost and higher maintenance cost. The worm and gear transmission mode is widely applied to the rotation mechanism of the material throwing barrel, has the characteristics of simple structure, large transmission ratio, low noise and the like, and is particularly suitable for being used as the rotation mechanism of the material throwing barrel due to self-locking property.

The common two ways of the worm and gear in the worm and gear rotating mechanism of the existing green fodder harvester are as follows: one form of assembly, this kind of structure is more complicated, and each part clearance needs to be adjusted after using for a period of time, and the maintenance is more frequent. The other form is centralized, the gaps among the parts are certain, and the adjustment is not needed. The structural gap has the characteristics of convenient maintenance, high strength and the like, and is widely applied to engineering machinery and agricultural machinery, and has the characteristics of good interchangeability, low price and the like. Because of the large-scale and intelligent green fodder harvester in recent years, the maintenance and adjustment requirements on the machine are more convenient, and the reliability requirements on all parts are higher and higher.

The Chinese patent document CN109555817A discloses a driving system capable of realizing stable forward and reverse rotation of a rotary table of a feeding cylinder of a green feeding machine, comprising a rotary table, and is characterized in that: the rotary table is characterized by further comprising a worm wheel, a supporting bearing seat, a worm, a motor, a worm supporting shaft and a supporting piece, wherein the worm wheel is coaxially arranged at the bottom of the rotary table, the worm supporting shaft is rotatably arranged at one side of the worm wheel through the supporting piece, the worm supporting shaft is arranged at the lower part of the supporting bearing seat, the worm meshed with the worm wheel is arranged at the upper part of the supporting bearing seat, and the worm is driven by the motor. The rotary table driving system for the green feeding machine has the advantages of being scientific and reasonable in design, stable in operation, accurate in material throwing positioning, capable of avoiding material waste, prolonging the service life of the material throwing barrel, reducing maintenance cost and easy to realize, and is a driving system with high innovation and capable of realizing stable forward and reverse rotation of the rotary table of the material throwing barrel of the green feeding machine.

This prior art has the following disadvantages: after long-term use, gaps can appear between the worm gears, so that transmission between the worm gears is affected. In order to adjust the gap between the worm gear and the worm, the prior art is further provided with a pressing mechanism, a pressure spring is arranged in the pressing mechanism, and the worm is supported by the pressure spring so that the worm can be abutted against the worm gear at any time. However, due to the limitation of the space structure, the size of the spring force is set, the size of the displacement of the spring is limited, the provided pretightening force is too large, so that the gap between the worm and the gear is often too small, the friction force is too large, the assembly is difficult, and the abrasion is easy; the pretightening force is too small to resist the reverse acting force of the worm when the worm is subjected to reverse impact, so that collision abnormal sound is generated between the worm and the worm wheel disc, and the structural design of the whole gap adjusting mechanism and the selection of the spring stiffness are difficult to balance.

Disclosure of Invention

The utility model provides a green fodder harvester with a rotary throwing barrel, which aims to solve the technical problem of high difficulty in adjusting the gap between a worm and a worm of the existing green fodder harvester, and comprises a frame, wherein a throwing fan, a base, a worm and worm gear mechanism and the throwing barrel are arranged on the frame; wherein: a telescopic adjusting pull rod assembly is arranged between the base and the frame.

In the scheme, after the material throwing barrel is arranged on the worm and gear mechanism, the worm and gear mechanism can drive the material throwing barrel to rotate; after the adjustment pull rod assembly is arranged between the base and the frame, the length of the adjustment pull rod assembly can drive the base to move, so that the worm wheel moves, the gap between the worm wheel and the worm rod also changes, and therefore, the gap between the worm wheel and the worm rod is adjusted.

Preferably, the adjusting pull rod assembly comprises side adjusting rods at two sides and a middle adjusting rod in the middle, one end of the side adjusting rod is connected with the base, and the other end of the side adjusting rod is connected with the frame; the middle part of the frame is provided with a bottom side bracket, one end of the middle adjusting rod is connected with the base, and the other end is connected with the bottom side bracket. In this scheme, after the adjustment pull rod subassembly sets up many adjusting levers, can guarantee to see multidirectional removal more to the worm wheel to guarantee that clearance between the worm wheel and the worm can obtain better adjustment, thereby guarantee the normal use of worm wheel and worm, can reduce the wearing and tearing of worm wheel and worm.

Preferably, the side adjusting rod and the middle adjusting rod comprise a telescopic rod and a fixing piece, and a fixing hole for inserting the fixing piece is formed in the telescopic rod. In this scheme, utilize telescopic link and mounting can realize adjusting the free regulation of side adjustment pole and middle adjustment pole length, at the in-process in adjustment green fodder harvester's worm gear mechanism clearance, when needs increase length, lengthen the telescopic link, when needs shorten length, shorten the telescopic link, and after the telescopic link length adjustment to needs length, insert the fixed orifices with the mounting, realize the fixed of telescopic link length, simple structure.

Preferably, the base is also provided with a rotation limiting structure for limiting the rotation angle of the throwing barrel. In this scheme, rotatory limit structure's setting can restrict the rotation angle who throws the feed cylinder, prevents to appear the operational accident, satisfies the work demand.

Preferably, the rotation limiting structure comprises a rotation limiting seat arranged on the base and a rotation limiting block arranged on the worm gear mechanism, wherein a limiting groove is formed in the rotation limiting seat, and the rotation limiting block is positioned in the rotation limiting seat. In this scheme, utilize the cooperation realization of rotatory spacing seat and rotatory stopper to throw the rotation angle of feed cylinder and restrict, simple structure.

Preferably, a hydraulic cylinder is arranged between the material throwing cylinder and the base. In this scheme, hydraulic cylinder's setting can be to throwing the altitude mixture control of feed cylinder, simple structure.

The utility model has the following beneficial effects:

1. the length of the adjusting pull rod assembly is adjusted to adjust the gap between the worm and the gear, so that the structure is simple, the gap between the worm and the gear can be adjusted more flexibly, the normal use of the worm and the gear is ensured, and the abrasion of the worm and the gear can be reduced;

2. after the adjusting pull rod assembly is provided with a plurality of adjusting rods, the worm wheel can be ensured to move in multiple directions, so that gaps between the worm wheels and the worm can be better adjusted, normal use of the worm wheels and the worm can be ensured, and abrasion of the worm wheels and the worm can be reduced;

3. the length of the adjustable pull rod assembly can be flexibly adjusted by the arrangement of the telescopic rod and the fixing piece;

4. the rotation limiting structure can limit the rotation angle of the material throwing barrel, so that working accidents are prevented, and the working requirements are met;

5. the hydraulic cylinder can adjust the height of the material throwing cylinder, and the structure is simple.

Drawings

FIG. 1 is a schematic view of an embodiment of a silage harvester with a rotary throwing barrel according to the utility model;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a right side view of FIG. 1;

fig. 4 is a top view of fig. 1.

Detailed Description

The following is a further detailed description of the embodiments:

1. definition of the definition

Worm gear mechanism: worm-worm gear is evolved from a staggered-axis helical cylindrical gear, a special type of gear, a gear for transmitting motion between two staggered axes, typically taking a stagger angle Σ=90°.

2. Reference numerals in the drawings of the specification include: the device comprises a throwing fan 1, a frame 2, a base 3, a rotation limiting seat 4, a worm gear mechanism 5, a throwing barrel fixing seat 6, a throwing barrel 7, a hydraulic cylinder 8, a side adjusting pull rod 9, a middle adjusting pull rod 10, a bottom side bracket 11 and a hydraulic motor 12.

An example is substantially as shown in figures 1 to 4 of the accompanying drawings: a green fodder harvester with a rotary throwing barrel comprises a frame 2, wherein a throwing fan 1, a base 3, a worm and gear mechanism, a rotary limiting seat 4 and a throwing barrel 7 are sequentially arranged on the frame 2 from bottom to top, the throwing barrel 7 is arranged on the worm and gear mechanism, a worm wheel in the worm and gear mechanism 5 is arranged on the base 3, the rotary limiting seat 4 is arranged on the base 3, and the base 3 is arranged on the upper part of the throwing fan 1; specifically, the base 3 is fixed at the upper part of the throwing fan 1, and the upper part of the base 3 is fixed with the worm gear mechanism 5 by bolts; the lower part of the worm gear mechanism 5 and the limit seat are connected with the base 3 by bolts; the worm and gear mechanism 5 comprises a worm and a worm wheel, the worm is driven to rotate through the rotation of the hydraulic motor 12, the worm wheel is driven to rotate through the rotation of the worm, the upper part of the worm wheel is fixed on the throwing cylinder fixing seat 6 through a bolt, and the hydraulic motor 12 is fixed on the frame through a connecting rod; a hydraulic cylinder 8 is arranged between the material throwing barrel 7 and the base 3.

A telescopic adjusting pull rod component is arranged between the base 3 and the frame 2. Specifically, the adjusting pull rod assembly comprises side adjusting rods on two sides and a middle adjusting rod in the middle, wherein the side adjusting rods and the middle adjusting rod comprise telescopic rods and fixing pieces, and fixing holes for the fixing pieces to be inserted are formed in the telescopic rods. The bottom side of the side adjusting pull rod 9 and the bottom side of the middle adjusting pull rod 10 are provided with bottom side brackets 11 and are fixed on the frame 2. Two sides of the base 3 are provided with side adjusting pull rods 9, one side of each side adjusting pull rod 9 is fixed on two sides of the base 3, and the other side is fixed on the frame 2 to play a role in fixation; an adjusting pull rod is arranged in the middle of the base 3; one end of the middle adjusting rod is fixed in the middle of the base 3, and the other end of the middle adjusting rod is connected with the bottom side bracket 11 through a pin shaft; the bottom bracket 11 is fixed to the frame 2 by bolts.

The base 3 is also provided with a rotary limiting structure for limiting the rotation angle of the material throwing barrel 7, the rotary limiting structure comprises a rotary limiting seat 4 arranged on the base 3 and a rotary limiting block arranged on the worm and gear mechanism 5, a limiting groove is formed in the rotary limiting seat 4, and the rotary limiting block is positioned in the rotary limiting seat 4.

The specific implementation process is as follows: the material throwing barrel 7 is lifted to a working position through the hydraulic oil cylinder 8, the worm is driven to rotate through the rotation of the hydraulic motor 12, the worm is driven to rotate through the rotation of the worm, the upper part of the worm is connected with the material throwing barrel fixing seat 6, and the material throwing barrel 7 is connected with the material throwing barrel fixing seat 6, so that the worm is driven to rotate through the rotation of the hydraulic motor 12, and the material throwing barrel 7 is driven to rotate. When the gap between the worm gear and the worm needs to be adjusted, the length of the pull rod assembly is lengthened or shortened.

The foregoing is merely an embodiment of the present utility model, and a specific structure and characteristics of common knowledge in the art, which are well known in the scheme, are not described herein, so that a person of ordinary skill in the art knows all the prior art in the application day or before the priority date of the present utility model, and can know all the prior art in the field, and have the capability of applying the conventional experimental means before the date, so that a person of ordinary skill in the art can complete and implement the present embodiment in combination with his own capability in the light of the present application, and some typical known structures or known methods should not be an obstacle for a person of ordinary skill in the art to implement the present application. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims

1. The green fodder harvester with the rotary throwing barrel comprises a frame, wherein a throwing fan, a base, a worm and gear mechanism and a throwing barrel are arranged on the frame, the throwing barrel is arranged on the worm and gear mechanism, a worm wheel in the worm and gear mechanism is arranged on the base, and the base is arranged on the upper part of the throwing fan; the method is characterized in that: a telescopic adjusting pull rod assembly is arranged between the base and the frame.

2. The silage harvester with a rotating throwing barrel of claim 1, wherein: the adjusting pull rod assembly comprises side adjusting rods at two sides and a middle adjusting rod in the middle, one end of the side adjusting rod is connected with the base, and the other end of the side adjusting rod is connected with the frame; the middle part of the frame is provided with a bottom side bracket, one end of the middle adjusting rod is connected with the base, and the other end of the middle adjusting rod is connected with the bottom side bracket.

3. The silage harvester with a rotating throwing barrel of claim 2, wherein: the side adjusting rod and the middle adjusting rod comprise a telescopic rod and a fixing piece, and fixing holes for the fixing piece to be inserted are formed in the telescopic rod.

4. A green fodder harvester according to any one of claims 1-3, characterized in that: the base is also provided with a rotation limiting structure for limiting the rotation angle of the material throwing barrel.

5. The silage harvester with a rotating throwing barrel of claim 4, wherein: the rotary limiting structure comprises a rotary limiting seat arranged on the base and a rotary limiting block arranged on the worm gear mechanism, wherein a limiting groove is formed in the rotary limiting seat, and the rotary limiting block is positioned in the rotary limiting seat.

6. The silage harvester with a rotating throwing barrel of claim 5, wherein: and a hydraulic oil cylinder is arranged between the material throwing cylinder and the base.