52results about How to "Low ground pressure" patented technology

The invention relates to a structurally improved crop straw harvesting baler, which comprises a frame, a header, a conveying chute, a longitudinal feed mechanism, a forming chamber, a baling and knotting device, a control table and a power system. The power system is disposed at the tail of the overall baler, other components are all disposed on a frame chassis, and a reel and a cutter are installed on the header. The structurally improved crop straw harvesting baler is characterized in that the chassis is a self-propelled crawler chassis, and self-propelling tracks are installed on the chassis. Using the chassis overcomes the shortages of a tractive baler, and integral operation is achieved. By means of the self-propelling tracks, land contact area is large, land contact pressure is low, soil settlement is avoided, performances are stable, reliability is high, travelling resistance is small, climbing performance is high, disassembly and assembly is easy, and cross-field movement is convenient. The structurally improved crop straw harvesting baler has the advantages that appearance is compact and small, conveying capacity is high, slipping is less apt to occur, adaptability to landforms is high, the structurally improved crop straw harvesting baler can be used for harvesting various types of straws, and the like. The structurally improved crop straw harvesting baler is applicable to landforms of most areas of China and harvesting of crop straws.

The present invention improves steering stability performance on dry road surfaces and steering stability performance on wet road surfaces. The land part width Wcc of a center land part 31 and the land part width Wco of an outer-side middle land part 32 satisfy the relationship Wcc<Wco. Additionally, contact surfaces 10 of each of the outer-side middle land part 32 and an outer-side shoulder landpart 34 are formed so as to protrude outward in the tire radial direction with respect to reference profiles PRco, PRso, and the protrusion amount Hco of the outer-side middle land part 32 and the protrusion amount Hso of the outer-side shoulder land part 34 satisfy the relationship Hco<Hso.

The invention discloses a ride-type two-wheel driven transplanter which comprises a frame, an engine, a transmission case, an operating mechanism, a driving wheel, a transplanting operating mechanism and a conveying wheel. The engine and the transmission case are fixedly arranged on the frame. The engine and the transplanting operating mechanism are respectively connected with the transmission case by transmission mechanisms. The operating mechanism comprises a seat, a leftward-steering operating bar and a rightward-steering operating bar. The seat is arranged on the frame. The leftward-steering operating bar and the rightward-steering operating bar are arranged on the frame and connected with the transmission case by corresponding steering clutch cables. Driving wheels include a left driving wheel and a right driving wheel which are respectively connected with the transmission case by corresponding driving wheel chains. The transplanting operating mechanism is connected with a transplanter hooking bracket which is connected with the frame. The ride-type two-wheel driven transplanter has the advantages that weight is supported by two front wheels and a rear floating plate so that the transplanter is not easy to be trapped into mud, and mud retaining at the rear floating plate is greatly reduced so that the performance of the transplanter and the transplanting quality are improved.