Retaining type precise seed metering device

Abstract

The invention relates to a clamp-type seed metering device with exact quantity, and comprises a main disc (14), a main auxiliary-disc (2), a seed baffle plate (5) and a rotating shaft (16). A soil opener is connected with the main auxiliary-disc; a seed taking belt (12) is fixedly connected between the main auxiliary-discs (12); one periphery of the inner side of the seed taking belt (12) is provided with a clamp-type seed taking device; and the clamp-type seed taking device comprises a fixed seed clamping plate (8), two moveable seed clamping plates (9), the shaft of the moveable seed clamping plate and the controlling mechanism of the seed taking device; the controlling mechanism of the seed taking device is arranged at the outer side of the seed taking belt (12), and comprises a rocker (10) and a reset spring (11); a fixed disc is divided into a front fixed disc (3) and a rear fixed disc (15), wherein, the inner side of at least one of the front fixed disc (3) and the rear fixed disc (15) is provided with a convex strip block (13). By adopting the clamp-type seed metering device, the precision of taking seed is greatly improved during the working process with good effect, and the service life the device is long, thus realizing the adjustable quantity of the seed with stable performance.

Description

Technical field: [0001] The invention relates to a precision seed metering device on a crop film, in particular to a clamping precision seed metering device. Background technique: [0002] The seed metering device is the core component of cotton planting machinery, and its working performance directly affects the sowing quality. At present, the precision seed metering device used on the seeder mainly includes mechanical type and air suction type. The air-suction precision seed metering device has precise seeding and stable performance, but is expensive and has a complex structure; a mechanical seed metering device, such as a gravity clamping precision seed metering device disclosed in Chinese patent 200620159035.0, includes a The seed room composed of a moving plate and a fixed plate is characterized in that a gravity clamping seed picker is arranged on the circumference of the moving plate in the seed room, and the seed picker is composed of a support, a seed clamping plate...

AI Technical Summary

Problems solved by technology

The air-suction precision seed metering device has precise seeding and stable performance, but is expensive and has a complex structure; a mechanical seed metering device, such as a gravity clamping precision seed metering device disclosed in Chinese patent 200620159035.0, includes a The seed room composed of a moving plate and a fixed plate is characterized in that a gravity clamping seed picker is arranged on the circumference of the moving plate in the seed room, and the seed picker is composed of a support, a seed clamping plate, a weight and a cross bar , the cross bar is connected to the weight, the weight is connected to the support through the shaft, the clamping plate is connected to the other end of the weight relative to the cross bar, and there is an extended surface at the bottom of the support to form a clamping plate with the clamping plate. There is an inoculation cup on the moving plate opposite to the jaw of the above-mentioned seed picker. The inoculation cup has a seed outlet on the side facing the outside, and the seed chamber inside the above-mentioned seed picker is on the side of the machine forward There is a seed blocking plate, and there are seed filling devices, seed cleaning devices and seed feeding devices on the above fixed plate

Although this kind of seed meter is reliable in picking seeds and has a low cavitation rate, the accuracy of seed picking is not high, and the effect of precise seeding in practical applications is not very ideal.

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