CN218057060U

CN218057060U - Rape cutter-rower conveyer belt overspeed device tensioner

Info

Publication number: CN218057060U
Application number: CN202221369064.5U
Authority: CN
Inventors: 赵一霁; 刘征明; 彭晓琴; 万勇; 曹合荣; 王勇; 徐文娟; 唐玲; 罗安妮
Original assignee: Sichuan Agricultural Machinery Research and Design Institute
Current assignee: Sichuan Agricultural Machinery Research and Design Institute
Priority date: 2022-06-02
Filing date: 2022-06-02
Publication date: 2022-12-16
Anticipated expiration: 2032-06-02

Abstract

The utility model discloses a rape cutter-rower conveyer belt tensioning device, which comprises a bottom frame, a driving roller and a conveyer belt, wherein the driving roller is arranged on the bottom frame and is connected with a power source; the inner surface of the conveying belt is in frictional contact with the outer surface of the driving roller; the device also comprises a mounting seat, a suspension assembly and a hydraulic cylinder; the mounting seat is arranged on the bottom frame, and the suspension assembly is arranged on the mounting seat; the suspension assembly comprises a driven roller, a suspension bracket and a connecting rod; the outer surface of the driven roller is in frictional contact with the inner surface of the conveying belt, and two ends of the driven roller are connected with two ends of the suspension bracket; the hydraulic cylinder is installed on the bottom frame, and the suspension bracket is connected with the output end of the hydraulic cylinder through the connecting rod. The automatic adjustment of the tension of the conveying belt can be realized, the condition that the conveying belt slips in the operation process of the rape cutter-rower is prevented, the structure is simple, and the adjustment is convenient.

Description

Rape cutter-rower conveyer belt overspeed device tensioner

Technical Field

The utility model relates to the field of agricultural machinery, especially, relate to a rape cutter-rower conveyer belt overspeed device tensioner.

Background

Rape is one of main oil crops in China, the planting area is wide, the rape planting area occupation ratio of hilly and mountainous lands is high, the rape planting concentration ratio is low, the operation scale is small, farmers in hilly areas prefer to the traditional seedling transplanting mode to plant the rape, and the rape planted in the transplanting mode has large plant type, multiple branches and crossed branches, which brings great difficulty to combined harvest, and various factors restrict the mechanized production development of the rape. At present, rape harvesting is divided into two modes of mechanical combined harvesting and two-section mechanical cutting and sunning, and an appropriate harvesting mode is selected according to local conditions in various places according to factors such as rape planting modes, climatic conditions, planting scale, field size and the like. Wherein the two-stage mechanical cutting and drying is that when the appearance color of rape pod is yellow green or light yellow and the seed coat is changed from green to red brown over 80% of the whole field, the two-stage cutting and drying machine is used for cutting and drying firstly, then the cut and fallen rape is dried for 5-7 days on the spot, and after the main stem is yellow and the maturity reaches 95%, the rape picking and threshing machine is matched with a rape picking and threshing machine for picking, threshing and cleaning operation.

In the rape cutting and sunning operation production link, a spiral tensioning device is often adopted for tensioning the conveying belt, the tensioning and the loosening of the transmission belt are realized by adjusting nuts on the screw rods, the structure is simple, and the stroke is short. However, in practical applications, manual adjustment is required because the helical tensioner cannot automatically tension the belt. The phenomenon that the belt slips and the rape is blocked easily occurs when rape is cut and sunned, and in addition, the friction force between the conveying belt and the contact surface of the rape is insufficient, so that the rape blocking is easily caused, and the production is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model aims at providing a rape cutter-rower conveyer belt overspeed device tensioner can realize the automatically regulated of conveyer belt tensile force, prevents that the condition that the conveyer belt skidded from appearing in rape cutter-rower operation process, simple structure, it is convenient to adjust.

In order to realize the above purpose, the utility model discloses a technical scheme:

a rape cutter-rower conveyer belt tensioning device comprises a bottom frame, a driving roller and a conveyer belt, wherein the driving roller is arranged on the bottom frame and is connected with a power source; the inner surface of the conveying belt is in frictional contact with the outer surface of the driving roller; the device also comprises a mounting seat, a suspension assembly and a hydraulic cylinder; the mounting seat is arranged on the bottom frame, and the suspension assembly is arranged on the mounting seat; the suspension assembly comprises a driven roller, a suspension bracket and a connecting rod; the outer surface of the driven roller is in frictional contact with the inner surface of the conveying belt, and two ends of the driven roller are connected with two ends of the suspension bracket; the pneumatic cylinder is installed on the underframe, just the outrigger passes through the connecting rod with the output of pneumatic cylinder is connected.

Preferably, both ends of the driven roller are connected with both ends of the suspension bracket through adjusting screw rods.

Preferably, the mounting seat is provided with a mounting groove, the connecting rod is arranged in the mounting groove, and the connecting rod is positioned between the mounting seat and the suspension bracket and is provided with a limiting device.

Preferably, two hydraulic cylinders are symmetrically arranged by taking the radial middle section of the driven roller as a symmetrical plane.

Preferably, an oil inlet nozzle of the hydraulic cylinder is connected with a hydraulic oil inlet pipe, and the hydraulic oil inlet pipe is connected with one end of a hydraulic conveying pipe through a pressure limiting regulating valve.

Preferably, the outer surface of the conveying belt is uniformly provided with triangular block bulges.

Preferably, a baffle is arranged in front of the feeding of the conveying belt.

The utility model has the advantages that:

the utility model provides a rape cutter-rower conveyer belt overspeed device tensioner, the pneumatic cylinder setting is on the underframe, and its output passes through the connecting rod to be connected with the lift kits, and the both ends of lift kits are connected with driven cylinder's both ends. The driving wheel of the rape cutter-rower drives the conveying belt to run, due to friction, the conveying belt drives the driven roller to rotate, when the tension is adjusted, the connecting rod is driven by the output end of the hydraulic cylinder to stretch out, the connecting rod drives the hanging bracket to stretch out, the hanging bracket drives the driven roller to stretch out, the contact state of the inner surface of the driven roller and the conveying belt is changed, the tension of the conveying belt is adjusted, the automatic adjustment of the tension of the conveying belt of the rape cutter-rower is realized, the conveying belt is guaranteed to have enough tension, the slipping condition of the conveying belt in the running process of the rape cutter-rower is prevented, the structure is simple, the adjustment is convenient, and the normal working condition is maintained.

Drawings

FIG. 1 is a main sectional view of the overall structure of the present invention;

FIG. 2 is a schematic view of a feeding side of a cutter-rower of the present invention;

fig. 3 is an enlarged view of a part of the structure of the present invention.

In the figure: 1. a bottom frame; 2. a driving roller; 3. a conveyor belt; 4. a mounting seat; 5. a driven drum; 6. a suspension bracket; 7. a connecting rod; 8. a hydraulic cylinder; 9. adjusting the screw rod; 10. a limiting device; 11. a baffle plate; 12. a hydraulic oil inlet pipe; 13. a pressure limiting regulating valve; 14. and a hydraulic conveying pipe.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further explained with reference to the accompanying drawings. In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example 1

As shown in fig. 1-3, the present embodiment provides a belt tensioner for a rape windrower, including a bottom frame 1, a driving roller 2 and a belt 3, where the driving roller 2 is arranged on the bottom frame 1 and connected to a power source; the inner surface of the conveying belt 3 is in frictional contact with the outer surface of the driving roller 2; the device also comprises a mounting seat 4, a suspension assembly and a hydraulic cylinder 8; the installation seat 4 is arranged on the bottom frame 1, and the suspension assembly is arranged on the installation seat 4; the suspension assembly comprises a driven roller 5, a suspension bracket 6 and a connecting rod 7; the outer surface of the driven roller 5 is in friction contact with the inner surface of the conveying belt 3, and two ends of the driven roller 5 are connected with two ends of the suspension bracket 6; the hydraulic cylinder 8 is installed on the bottom frame 1, and the suspension bracket 6 is connected with the output end of the hydraulic cylinder 8 through the connecting rod 7.

A belt tensioner for the rape cutter-rower is composed of a drive drum (2) driven by power source, a gear drive part for connecting the output shaft of power source to one end of drive drum (2), a drive drum (2) driven by said drive drum, and a belt (3) driven by said drive drum (2) for friction drive. The mounting seat 4 is fixed on the bottom frame 1 of the swather and supports the suspension assembly, the driven roller 5 in the suspension assembly is axially parallel to the driving roller 2 and forms friction transmission with the conveying belt 3, and the conveying belt 3 rotates to drive the driven roller 5 to rotate; still parallel arrangement has many bearing rollers between driving roller 2 and the driven cylinder 5, and many bearing rollers all form the friction drive with conveyer belt 3, and conveyer belt 3 rotates and drives from many bearing rollers rotation, and driving roller 2, driven cylinder 5 and bearing roller form synchronous rotation. Pneumatic cylinder 8 passes through the installed part and installs on underframe 1, lift kits 6 is connected with driven cylinder 5, when carrying out tensile force adjustment, it stretches out to drive connecting rod 7 through pneumatic cylinder 8 output, connecting rod 7 drives lift kits 6 and stretches out, lift kits 6 drives driven cylinder 5 and stretches out, change driven

cylinder

5 and 3 internal surface contact states of conveyer belt, thereby adjust the tensile force of conveyer belt 3, realize the automatic adjustment of 3 tensile forces of rape cutter-rower conveyer belt, guarantee that conveyer belt 3 has sufficient tensile force, prevent the condition that 3 skids of conveyer belt from appearing in rape cutter-rower operation process, moreover, the steam generator is simple in structure, and convenient adjustment, maintain normal operating mode.

Example 2

As shown in fig. 1 to 3, the present embodiment is developed on the basis of the above embodiments, and specifically, the present embodiment provides a conveyor belt tensioning device for a rape cutter-rower, both ends of the driven drum 5 are connected to both ends of the suspension bracket 6 through the adjusting screw 9, and when a hydraulic cylinder 8 or an oil valve or the like fails, the tensioning force of the conveyor belt 3 can be manually adjusted by adjusting the adjusting screw 9, so that the manual tensioning of the conveyor belt 3 of the rape cutter-rower does not affect the production.

Preferably, be provided with the mounting groove on the mount pad 4, connecting rod 7 sets up in the mounting groove, just lie in on the connecting rod 7 install stop device 10 between mount pad 4 and the suspension bracket 6, stop device 10 can restrict the shrink length of connecting rod 7, ensures that the suspension assembly does not collide with the swather, guarantees production safety, and in some better embodiments, stop device 10 is stop nut, through the shrink length of adjustment stop nut's position restriction connecting rod 7.

Preferably, the two hydraulic cylinders 8 are symmetrically arranged by taking the radial middle section of the driven roller 5 as a symmetrical plane, and it is worth explaining that two components connected with the two hydraulic cylinders 8 are arranged, and the two hydraulic cylinders 8 jointly perform tensioning adjustment on the conveying belt 3, so that the adjustment efficiency is ensured.

Preferably, an oil inlet nozzle of the hydraulic cylinder 8 is connected with a hydraulic oil inlet pipe 12, and the hydraulic oil inlet pipe 12 is connected with one end of a hydraulic delivery pipe 14 through a pressure limiting regulating valve 13. The pressure of the pressure limiting regulating valve 13 is regulated to drive the hydraulic rod to stretch and retract to different degrees, so that the suspension assembly is driven to extend out to ensure that the conveying belt 3 has enough tension, and the automatic adjustment of the tension of the conveying belt 3 of the rape cutter-rower is realized; and the maximum pressure is limited by the pressure limiting regulating valve 13, so that the conveyer belt 3 is prevented from being broken due to overlarge tension force, and the service life of the conveyer belt 3 is prolonged.

Preferably, in order to increase the friction force between the conveying belt 3 and the contact surface of the rape, triangular block protrusions are uniformly arranged on the outer surface of the conveying belt 3.

Preferably, in order to prevent the rape from entering the inner side of the conveyer belt 3 and blocking the conveyer belt 3, a baffle 11 is arranged in front of the feeding of the conveyer belt 3.

Example 3

As shown in fig. 1-3, the present embodiment is developed based on the above embodiments, and specifically, the present embodiment provides a tensioning principle of a rape cutter-rower belt tensioning device, as follows:

when the tension of the conveying belt 3 of the rape cutter-rower is adjusted, the pressure of the pressure limiting adjusting valve 13 is adjusted according to the rape cutting-sunning operation condition and the state of the conveying belt 3, and whether the adjusting screw rod 9 and the limiting device 10 are fastened or not is checked. When rape cutter-rower carries out the operation, when the tensile force of conveyer belt 3 was not enough, drive pneumatic cylinder 8 made the hydraulic stem stretch out to drive lift kits 6 and stretch out, drive and move cylinder 5 and stretch out, adjust the contact state of driven cylinder 5 and conveyer belt 3, guarantee that conveyer belt 3 has sufficient tensile force, thereby realize 3 tensile force automatic adjustment of rape cutter-rower conveyer belt, avoid conveyer belt 3 to skid. The maximum pressure is limited by the pressure limiting regulating valve 13, so that the conveyer belt 3 is prevented from being broken due to overlarge tension force, and the service life of the conveyer belt 3 is prolonged. Can guarantee that the subassembly that hangs does not collide with other structures of swather through the shrink length of stop nut adjustment connecting rod 7, guarantee rape swather operation safety. When the hydraulic cylinder 8 or the pressure limiting adjusting valve 13 has a fault, the adjusting screw rod 9 is manually adjusted, so that the manual tensioning of the rape cutter-rower conveying belt 3 does not influence the production. Overall structure is simple, and the processing ease can realize the automatic adjustment of 3 tensile forces of conveyer belt, maintains going on of normal operating mode.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A rape cutter-rower conveyer belt tensioning device comprises a bottom frame (1), a driving roller (2) and a conveyer belt (3), wherein the driving roller (2) is arranged on the bottom frame (1) and is connected with a power source; the inner surface of the conveying belt (3) is in frictional contact with the outer surface of the driving roller (2); the method is characterized in that: the device also comprises a mounting seat (4), a suspension component and a hydraulic cylinder (8); the mounting seat (4) is arranged on the bottom frame (1), and the suspension assembly is arranged on the mounting seat (4); the suspension assembly comprises a driven roller (5), a suspension bracket (6) and a connecting rod (7); the outer surface of the driven roller (5) is in friction contact with the inner surface of the conveying belt (3), and two ends of the driven roller (5) are connected with two ends of the suspension bracket (6); the hydraulic cylinder (8) is installed on the bottom frame (1), and the suspension bracket (6) is connected with the output end of the hydraulic cylinder (8) through the connecting rod (7).

2. The rape cutter-rower belt tensioner of claim 1, wherein: and two ends of the driven roller (5) are connected with two ends of the suspension bracket (6) through adjusting screw rods (9).

3. The rape cutter-rower belt tensioner of claim 1, wherein: the mounting seat is characterized in that a mounting groove is formed in the mounting seat (4), the connecting rod (7) is arranged in the mounting groove, and the connecting rod (7) is located between the mounting seat (4) and the suspension bracket (6) and is provided with a limiting device (10).

4. The rape cutter-rower belt tensioner of claim 1, wherein: and two hydraulic cylinders (8) are symmetrically arranged by taking the radial middle section of the driven roller (5) as a symmetrical plane.

5. The rape cutter-rower belt tensioner of claim 1, wherein: the oil inlet nozzle of the hydraulic cylinder (8) is connected with a hydraulic oil inlet pipe (12), and the hydraulic oil inlet pipe (12) is connected with one end of a hydraulic conveying pipe (14) through a pressure limiting adjusting valve (13).

6. The rape cutter-rower belt tensioner of claim 1, wherein: the outer surface of the conveying belt (3) is uniformly provided with triangular block bulges.

7. The rape cutter-rower belt tensioner of claim 1, wherein: a baffle (11) is arranged in front of the feeding part of the conveying belt (3).