CN219373136U

CN219373136U - Lifting device for grass collecting box of green fodder harvester

Info

Publication number: CN219373136U
Application number: CN202320682142.5U
Authority: CN
Inventors: 王世辉; 王兴甫; 毕立谦
Original assignee: Hebei Yuanzheng Agricultural Machinery Co ltd
Current assignee: Hebei Yuanzheng Agricultural Machinery Co ltd
Priority date: 2023-03-31
Filing date: 2023-03-31
Publication date: 2023-07-21
Anticipated expiration: 2033-03-31

Abstract

The utility model relates to a lifting device of a grass collecting box of a green feed harvester, which comprises a rectangular upper frame, a lifting device and a lifting device, wherein the top surface of the rectangular upper frame is used for installing the grass collecting box; the lifting assembly comprises a sliding rod and two vertical plates, the two vertical plates are oppositely arranged, the two vertical plates are arranged on the front side and the rear side of the bottom of the upper frame, and inclined sliding grooves are formed in the vertical plates; the sliding rod moves along the length direction of the lower frame, a cross rod is fixedly arranged on the sliding rod, and two ends of the cross rod are arranged in the sliding groove in a sliding way; and the guide piece limits the lifting assembly to move vertically. According to the lifting device for the grass collecting box of the green feed harvester, the upper frame is vertically jacked up through the lifting assembly, and compared with the prior art, the gravity center of the lifted grass collecting box is less in deviation.

Description

Lifting device for grass collecting box of green fodder harvester

Technical Field

The utility model relates to the technical field of agricultural machinery, in particular to a lifting device of a grass collecting box of a green feed harvester.

Background

The grass collecting box of the green fodder harvester is used for collecting cut and broken green fodder, then the green fodder is discharged into the hopper of the material receiving vehicle in a turnover mode, when the height of the hopper of the material receiving vehicle is higher, the discharging cannot be completed, so that the current grass collecting box is generally provided with a lifting mechanism, such as the lifting structure of the grass collecting box disclosed in the Chinese patent application No. 202222711981.3, the lifting movable frame is jacked up by two cylinders to realize the lifting of the grass collecting box, but in order to enable the green fodder to slide out more easily after the grass collecting box is turned, the adjacent surfaces of the grass collecting box and the bracket are generally inclined planes, even under the condition that the lifting mechanism is not arranged, the gravity center of the grass collecting box is also deviated when the grass collecting box is turned, if the gravity center of the grass collecting box in the prior art is more seriously deviated, when the green fodder in the grass collecting box is more in the green fodder capacity, the harvester is easy to incline,

in addition, since two cylinders are provided, the structure is complicated, and the cylinders are exposed to the outside and are liable to malfunction.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides a lifting device of a grass collecting box of a green feed harvester, which comprises a rectangular upper frame, a lifting device and a lifting device, wherein the rectangular upper frame is used for installing the grass collecting box on the top surface of the upper frame; the lifting assembly comprises a sliding rod and two vertical plates, the two vertical plates are oppositely arranged, the two vertical plates are arranged on the front side and the rear side of the bottom of the upper frame, and inclined sliding grooves are formed in the vertical plates; the sliding rod moves along the length direction of the lower frame, a cross rod is fixedly arranged on the sliding rod, and two ends of the cross rod are slidably arranged in the sliding groove; and a guide that limits vertical movement of the lift assembly.

The middle part of the top surface of the lower frame is provided with a motor, the output end of the motor is provided with a screw rod, the sliding rod is an internal thread pipe, and the sliding rod is sleeved on the outer side of the screw rod.

The lifting assemblies are arranged at the left side and the right side of the bottom of the upper frame respectively.

The sliding grooves of the vertical plates of the two lifting assemblies are opposite in inclination direction, the motors are double-shaft motors, and the moving directions of the two sliding rods are opposite.

The guide piece comprises a plurality of guide rods which are vertically arranged and a plurality of guide pipes which correspond to the guide rods; the guide pipe is arranged at the top of the lower frame, and the guide rod is arranged at the bottom of the upper frame.

Wherein, the upper frame sets up the beam slab, the beam slab is located directly over the lead screw.

The sliding groove is a through groove, a sleeve is arranged at the tail end of the cross rod, and the sleeve is slidably arranged in the sliding groove.

Wherein, the two ends of the sleeve penetrate out of the chute, and the outer edges of the two ends of the sleeve are provided with annular extending parts which extend outwards

The beneficial effects of the utility model are as follows: according to the lifting device for the grass collecting box of the green feed harvester, the upper frame is vertically jacked up through the lifting assembly, and compared with the prior art, the gravity center of the lifted grass collecting box is less in deviation.

Drawings

The utility model will be described in further detail with reference to the drawings and the detailed description.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an enlarged view of the portion of FIG. 1A in accordance with the present utility model;

FIG. 3 is a schematic view of the riser of the present utility model in a raised position.

Description of the reference numerals

1. Lower frame, 2, slide bar, 21, horizontal pole, 22, sleeve pipe, 221, annular extension, 3, riser, 31, spout, 4, stand pipe, 5, motor, 51, lead screw, 6, upper frame, 61, guide bar, 62, beam slab, 7, screw.

Detailed Description

The technical solutions in the embodiments of the present utility model are clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.

As shown in fig. 1, a lifting device for a grass collecting box of a green fodder harvester provided by an embodiment comprises a rectangular upper frame 6 with a top surface for installing the grass collecting box and a turnover bracket thereof;

the lifting assembly comprises a sliding rod 2 and two vertical plates 3, the two vertical plates 3 are oppositely arranged and are positioned at the front side and the rear side (the front side, the rear side and the left side are directions in the figure 1) of the bottom of the upper frame 6, inclined sliding grooves 31 are formed in the vertical plates 3, screw holes 7 are formed in the vertical plates 3 and the upper frame 6, and the upper frame 6 and the vertical plates 3 are fixed through screws;

the lower frame 1 is rectangular and overlapped with the upper frame 6, the lower frame 1 is arranged on a rear vehicle plate of the green fodder harvester or is used as a rear vehicle plate body, the sliding rod 2 moves back and forth along the length direction of the lower frame 1, the sliding rod 2 is fixedly provided with a cross rod 21, and two ends of the cross rod 21 are arranged in the sliding groove 31 in a sliding manner;

the guide piece limits the lifting assembly to move vertically, and specifically, the guide piece comprises a plurality of guide rods 61 which are arranged vertically and a plurality of guide pipes 4 which correspond to the guide rods 61, the guide pipes 4 are arranged at the top of the lower frame 1, and the guide rods 61 are arranged at the bottom of the upper frame 6.

When in use, taking fig. 3 as an example, the sliding rod 2 moves to drive the cross rod 21 to move, the vertical plate 3 is lifted through the cooperation of the cross rod 21, the chute 31 and the guide piece, and the sliding rod 21 resets to enable the vertical plate 3 to descend, so that the lifting of the upper frame 6 is completed.

Specifically, the middle part of the top surface of the lower frame 1 is provided with a motor 5, the output end of the motor 5 is provided with a screw rod 51, the sliding rod 2 is an internal thread pipe, and the sliding rod 2 is sleeved outside the screw rod 51, so that the movement of the sliding rod 2 is driven by the motor 5.

Further, in order to make the lifting of the upper frame 6 stable, two lifting assemblies may be provided, and the two lifting assemblies are respectively disposed on the left and right sides of the bottom of the upper frame 6.

Moreover, the sliding grooves 31 of the vertical plates 3 of the two lifting assemblies are opposite in inclination direction, meanwhile, the motor 5 is a double-shaft motor, and the moving directions of the two sliding rods 2 are opposite (realized by adjusting the threads of the sliding rods 2 and the screw rods 51), so that the total movement track length of the two sliding rods 2 can be shortened under the condition that the whole lifting heights are the same, the whole length of the two frames can be shortened, or a higher lifting distance can be obtained when the length of the two frames is unchanged and the inclination angle of the sliding grooves 31 is unchanged.

Further, since the screw rod 51 is screw-engaged with the slide rod 2, in order to reduce the influence of dust and sundries falling during discharging, a beam plate 62 may be disposed directly above the screw rod 51, and the beam plate 62 may also serve to reinforce the upper frame 6.

Further, as shown in fig. 1 and 2, in order to reduce friction between the cross bar 21 and the inner surface of the chute 31, the chute 31 may be configured as a through slot, the end of the cross bar 21 is provided with a sleeve 22, the sleeve 22 is slidably disposed in the chute 31, two ends of the sleeve 22 penetrate out of the chute 31, two outer edges of the sleeve 22 are provided with annular extending portions 221 extending outwards, and the annular extending portions 221 play a role of limiting the sleeve 22 in the chute 31.

It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Claims

1. Lifting device of grass collecting box of green fodder harvester, which is characterized by comprising

The top surface is used for installing a rectangular upper frame of the grass collecting box;

the lifting assembly comprises a sliding rod and two vertical plates, the two vertical plates are oppositely arranged, the two vertical plates are arranged on the front side and the rear side of the bottom of the upper frame, and inclined sliding grooves are formed in the vertical plates;

the sliding rod moves along the length direction of the lower frame, a cross rod is fixedly arranged on the sliding rod, and two ends of the cross rod are slidably arranged in the sliding groove;

and a guide that limits vertical movement of the lift assembly.

2. The lifting device of the grass collecting box of the green feed harvester according to claim 1, wherein a motor is arranged in the middle of the top surface of the lower frame, a screw rod is arranged at the output end of the motor, the sliding rod is an internal threaded pipe, and the sliding rod is sleeved outside the screw rod.

3. The lifting device of a grass collecting box of a green feed harvester according to claim 2, wherein two lifting assemblies are arranged on the left side and the right side of the bottom of the upper frame respectively.

4. A lifting device for a grass collecting box of a green fodder harvester according to claim 3, wherein the sliding grooves of the vertical plates of the two lifting assemblies are inclined in opposite directions, the motor is a double-shaft motor, and the moving directions of the two sliding rods are opposite.

5. The lifting device of a grass collection box of a green fodder harvester according to any one of claims 1-4, wherein the guide member comprises a plurality of vertically arranged guide rods and a plurality of guide tubes corresponding to the guide rods;

the guide pipe is arranged at the top of the lower frame, and the guide rod is arranged at the bottom of the upper frame.

6. The lifting device for a grass collection box of a green feed harvester according to any one of claims 2-4, wherein the upper frame is provided with a beam plate, and the beam plate is located right above the screw rod.

7. The lifting device for a grass collection box of a green feed harvester according to any one of claims 1-4, wherein the chute is a through slot, a sleeve is arranged at the tail end of the cross rod, and the sleeve is slidably arranged in the chute.

8. The lifting device for a grass collecting box of a green feed harvester according to claim 7, wherein two ends of the sleeve penetrate out of the sliding groove, and annular extending parts extending outwards are arranged on the outer edges of the two ends of the sleeve.