T/NAASS 109-2024 The quality of work of the Ningtiaosong harvesting machine
T/NAASS 109-2024 The quality of work of the Ningtiaosong harvesting machine
Basic Information
Scope
Scope: This document specifies the terms and definitions, operational quality, inspection methods, and judgment rules for the operation of caragana stumping harvesters. This document is applicable to the evaluation of the operational quality of caragana stumping harvesters in Ningxia; Main technical content: 3. Terms and definitions The following terms and definitions apply to this document. Caragana korshinskii stumping harvester Includes single-function caragana stumping harvesters and combined caragana harvesters with cutting and crushing functions. Stubble harvest cycle The time interval between two consecutive stubble harvest operations, typically expressed in years. 4. Operational quality Operational conditions The road conditions of the operational area should be suitable for the stumping harvester to travel and perform field operations. The technical condition of the stumping harvester should comply with the requirements of the product manual; The driver should have the corresponding driving qualifications and be able to skillfully operate, adjust, and maintain the stumping harvester. For the first stubble harvest of caragana, the cluster height should be ≥80 cm, the stem diameter should be ≤2.5 cm, or the forest age should be more than 8 years. The stubble harvest time should be during the caragana growth season from June to September, and the cycle should be between 3 and 5 years. Operational quality The operational quality of the stumping harvester should comply with the requirements specified in Table 1. Table 1 Operational quality items Indicator Standard Combined harvester Stumping harvester Cutting stump height, mm ≤100 Stump quality pass rate, % ≥80 Total harvest loss rate, % ≤3/ Standard grass length rate, % ≥85/ Missed cutting rate, % ≤2 Note 1: Stubs with tear length less than 10 mm are qualified. Note 2: Standard grass length refers to the grass segments cut within the range of