CN2155128Y

CN2155128Y - Land leveler

Info

Publication number: CN2155128Y
Application number: CN 93205101
Authority: CN
Inventors: 陈长东
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-02-27
Filing date: 1993-02-27
Publication date: 1994-02-09
Anticipated expiration: 2003-02-27

Abstract

The utility model relates to a land leveler, which comprises a leveler frame, a soil-scraping plate and an elevator. The utility model is characterized in that a horizontal monitor, a signal amplifier and a lifting and driving device of the soil-scraping plate are arranged on the leveler frame. The utility model measures and obtains the horizontal signal through the horizontal monitor, and the utility model can control the height of the soil-scraping plate at any time to ensure the soil-scraping plate to always keep a definite plane. The utility model has the advantages of quick reaction speed and small hysteresis quality.

Description

Land leveler

The utility model relates to a kind of land leveller, belongs to agricultural machinery.

The used machinery of leveling land in the agricultural production at present, relatively more commonly used is more original disposable adjustment screw rod elevation (over-and-under) type, improper or unusual as occurring in the middle of leveling land, the locomotive that then needs to stop is adjusted clean-up scraper, another kind is manual oil pressure elevation (over-and-under) type, by human pilot according to the level land situation, in driver's cabin, control, as above land smoothing machine reaction to landform when leveling land all has bigger hysteresis quality, promptly after abnormal conditions occur, just react, adjust often late.

The purpose of this utility model is to provide that a kind of reaction velocity is fast, hysteresis quality is little, the land leveller that can adjust according to landform automatically.

The utility model comprises frame, clean-up scraper, it is characterized in that frame is provided with level monitoring instrument, signal amplifier and clean-up scraper lifting drive.

Clean-up scraper lifting drive of the present utility model can be hydraulic type, is made up of hydraulic press and hydraulic piston, also can be spiral rod type, is made up of drive motors and spiral transmissioning rod.

Described level monitoring instrument is made up of a Hall sensor and a pendulum, and the magnet of Hall sensor is located at the lower end of pendulum; Also can form by a photoelectric sensor and pendulum, be provided with a shadow shield between the light-emitting component of photoelectric sensor and the photoinduction element, this shadow shield is fixed in the lower end of pendulum, also can be a pendulum and polar-plate-type capacitor and constitutes, and a pole plate of capacitor is located at the lower end of pendulum.

The utility model measures horizontal signal by the level monitoring instrument, controls the height of clean-up scraper at any time, guarantees that clean-up scraper remains certain plane, and reaction velocity is fast, and hysteresis quality is little.

Below in conjunction with accompanying drawing the utility model is elaborated.

Fig. 1 is the utility model block diagram.

Fig. 2 is the structural representation of the utility model embodiment 1.

Fig. 3 is the level monitoring instrument schematic diagram of the utility model embodiment 1.

Fig. 4 is the level monitoring instrument schematic diagram of the utility model embodiment 2.

Fig. 5 is the level monitoring instrument schematic diagram of the utility model embodiment 3.

With reference to accompanying

drawing

1,2, the utility model comprises frame (1), clean-up scraper (7), is provided with level monitoring instrument (2), signal amplifier (3) and clean-up scraper lifting drive in frame.

Described clean-up scraper lifting drive can be hydraulic type, is made up of hydraulic press (4), petroleum pipeline (5), hydraulic piston (6), and hydraulic piston drives the clean-up scraper lifting; Also can be spiral rod type, be formed by drive motors, transmission device and spiral transmissioning rod that spiral transmissioning rod drives the clean-up scraper lifting.

The level monitoring instrument can with reference to Fig. 3, be made up of a Hall sensor and pendulum (8) for the Hall sensor formula, and the magnet of Hall sensor (9) is located at the lower end of pendulum, and sensor (10) is located at the position relative with magnetic. The level monitoring instrument also can be photoelectric induction type, and (with reference to Fig. 4) is made up of photoelectric sensor and pendulum (8), is provided with shadow shield (12) between the light-emitting component of photoelectric sensor (13) and the photoinduction element (11), and shadow shield is located on the pendulum (8). The level monitoring instrument can also be condenser type (with reference to Fig. 5), is made of pendulum (8) and a polar-plate-type capacitor, and a pole plate (14) of capacitor is located on the pendulum, and another pole plate (15) is located at the position relative with pole plate (14).

Embodiment 1:

(with reference to Fig. 2, Fig. 3), present embodiment level monitoring instrument is the Hall sensor formula, the clean-up scraper elevator is an oil-pressurized elevator.

Embodiment 2:

Compare with embodiment 1, difference is that the level monitoring instrument is a photoelectric induction type, (with reference to Fig. 4).

Embodiment 3:

Compare with embodiment 1, difference is that the level monitoring instrument is the plates capacitance formula, (with reference to Fig. 5).

Claims

1, a kind of land leveller comprises frame, clean-up scraper and lift, it is characterized in that frame is provided with level monitoring instrument, signal amplifier and clean-up scraper lifting drive.

2, land leveller as claimed in claim 1 is characterized in that described clean-up scraper lifting drive is a hydraulic type, is made up of hydraulic press and hydraulic piston.

3, land leveller as claimed in claim 1 is characterized in that described clean-up scraper lifting drive is a spiral rod type, is made up of drive motors and spiral transmissioning rod.

4, as claim 1,2 or 3 described land levellers, it is characterized in that described level monitoring instrument is made up of a Hall sensor and a pendulum, the magnet of Hall sensor is located at the lower end of pendulum.

5, as claim 1,2 or 3 described land levellers, it is characterized in that described level monitoring instrument is made up of a photoelectric sensor and pendulum, be provided with a shadow shield between the light-emitting component of photoelectric sensor and the photoinduction element, this shadow shield is fixed in the lower end of pendulum.

6, as claim 1,2 or 3 described land levellers, it is characterized in that described level monitoring instrument is that a pendulum and polar-plate-type capacitor constitute, a pole plate of capacitor is located at the lower end of pendulum.