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Hydraulic driving device for draught fan of pneumatic type seeding machine

A driving device and seeder technology, which is applied in the direction of single seed seeder, pump device, fertilization device, etc., can solve the problems that affect the promotion and application of pneumatic sowing, and achieve the effect of small space occupation, stable wind pressure and avoiding missing seeding

Inactive Publication Date: 2014-10-22
HEBEI NONGHAHA MASCH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Our country also wants to adopt this technology, but because the hydraulic system of the domestic tractor itself cannot meet the requirements of continuous and stable rotation of the seeding fan at the head, middle and tail of the field during sowing operations, it has seriously affected the promotion and application of pneumatic sowing in our country

Method used

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  • Hydraulic driving device for draught fan of pneumatic type seeding machine
  • Hydraulic driving device for draught fan of pneumatic type seeding machine

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Embodiment Construction

[0016] see figure 1 , figure 2 : This pneumatic seeder fan hydraulic driving device is characterized in that it mainly includes an oil pump 5, an oil tank 8, and a hydraulic motor 14. The power output shaft 2 of the tractor 1 is connected to drive the oil pump 5 to run. The oil inlet pipe 6 of the oil pump communicates with the oil tank 8. The oil pump The power oil provided by 5 is transmitted to the hydraulic motor 14 through the oil pump outlet pipe 7 and the hydraulic motor oil inlet pipe 12, and the hydraulic motor 14 drives the sowing fan 13 to run, and the hydraulic motor 14 communicates with the oil tank 8 through the hydraulic motor oil outlet pipe 11. Hydraulic control element, the operation speed of sowing blower fan 13 is controlled by hydraulic control element. The hydraulic control components include a flow valve 10 connected between the oil outlet pipe 7 of the oil pump and the oil inlet pipe 12 of the hydraulic motor, and a relief valve 9 is provided between ...

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Abstract

The invention provides a hydraulic driving device for a draught fan of a pneumatic type seeding machine, relating to the technical field of pneumatic type seeding machines. The hydraulic driving device is characterized in that a power output shaft of a tractor is connected with an oil pump and drives the oil pump to rotate, power oil supplied by the oil pump is conveyed to a hydraulic motor by an oil pump outlet pipe and a hydraulic motor inlet pipe, the hydraulic motor drives the draught fan for seeding to rotate, and is communicated with an oil tank by a hydraulic motor outlet pipe, a hydraulic control element is arranged in a hydraulic system, and the running speed of the draught fan for seeding is controlled by the hydraulic control element. The hydraulic driving device has the beneficial effects of being matched with the tractor conveniently, ensuring the stable rotation of the hydraulic motor for driving the draught fan for seeding without limitation of the size of an oil valve of the tractor to finally achieve ideal seeding, and overcoming the phenomena of unstable wind power, seedling shortage and seedlingless ridges caused by turning, stopping, machine tool lifting and the like of the existing domestic pneumatic type seeding; besides, the hydraulic driving device has the characteristics of simple and compact structure, small occupied area, convenience in adjustment and reliability in working.

Description

technical field [0001] The invention relates to the technical field of pneumatic seeders. Background technique [0002] Pneumatic seeders have become the preferred model for precision seeding in the world today. The wind power of the pneumatic seeder comes from the fan. Most of the pneumatic seeders produced in my country are driven by the power output shaft of the tractor through the universal joint and the speed change mechanism. Such a structure and transmission mode cause the speed of the fan to change from The throttle of the tractor is controlled. If the throttle is unstable, the speed of the fan will be unstable, and the airflow pressure and flow will be unstable, which will easily cause seedling shortage and break the ridge; Damage to the gimbal. The stable speed of the fan is the key to ensure that there is no shortage of seedlings. For this reason, developed countries in foreign countries have adopted hydraulic motors to drive the fan, and the fan speed has been st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C7/04A01C19/00F04D25/04
Inventor 吴运涛肖胜远王彦波赵双振
Owner HEBEI NONGHAHA MASCH GRP CO LTD
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