Agricultural machinery use knowledge
food Animal Feed meal probiotic waters animal feed meal probiotic CANGZHOU HUAYOU IMPORT & EXPORT TRADE CO., LTD. , https://www.huayoutrade.com
l. Steering is not working. Due to the tight steering shaft. As a result, the steering resistance increases, and it is necessary to adjust the clamping nut of the steering shaft to an appropriate position; if the bearing of the steering shaft is damaged, the steering will be inflexible, and the replacement of the new bearing will solve the problem; for the steering wheel type tricycle, it may be the direction of the steering wheel. Lack of grease, so you need to regularly add grease; if the direction of the bearing adjustment is too tight or steering gear and rack gear meshing too tight, it will lead to inflexible steering, then need to be readjusted.
2, tricycle deviation. 1) If the load of the front wheel is too large or the load of the freight car is biased to one side, the tricycle will be biased. Therefore, when the user loads the cargo, the cargo should be evenly placed to avoid accidents; 2) If the front wheel pressure is too low Left and right rear wheel pressure difference is too large, will lead to trike deviation, this time should be the front wheel pressure to the standard value of 450kPaa, the rear wheel pressure to 550kPaa, and make the pressure of two rounds equal; 3) shock absorber Left and right spring elasticity is inconsistent or the shock absorbers are not parallel. The inconsistent working length will also cause the tricycle to deviate. At this time, it is necessary to check whether the specifications of the two springs are the same or replace the failed springs. If the shock absorbers are not parallel and the working length is inconsistent, they should be reinstalled. If the shaft of the shock absorber is bent, replace it until it is parallel and the working length is the same; 4) The elasticity of the left and right leaf springs will be different, which will also lead to the deviation of the vehicle. At this time, the leaf spring must be replaced; 5) Parallel Different lengths of tie rods and unbalanced forces on both sides are also a major cause of vehicle deviation. At this time, they need to be adjusted to the same length. 6) The deformation of the frame caused by the collision will cause tilting of the steering sleeve and change of angle, which will also lead to running. Partial, Should be corrected, if you want to tilt the beam distortion serious, they need to get a new large aircraft.
Second, how to determine the faulty parts of the loader. The engine that can not be carried by the axle puller (or burning), camshaft burning, and cylinder pull failure can be called a loader. For a load vehicle, if it is dismantled and checked blindly, it takes time and effort. How to determine the fault location of the loader?
When the shaft pulls (or burns), its wear-resistant alloy layer will fall off into a powder and enter the oil in the oil pan. A part of the random oil will be pumped into the oil passage by the oil pump and adhered through the filter. On the filter element. Therefore, the loader car should first open the oil filter cover to check whether the surface of the filter element adheres to the detached alloy layer powder. If yes, it is a shaft pull (or burn). Then check one by one whether there is axial clearance of the connecting rod. If there is no abnormal situation, then open the main bearing cover one by one to check the main shaft of the main shaft. If there is no falling alloy layer powder, the camshaft is burned or pulled. At this time, the thrust screw on the cover of the timing gear chamber should be withdrawn, and the camshaft should be pulled along the axial direction with a crowbar to see if it can move. If it cannot move, then the camshaft is burned and can move without any abnormality. Pull cylinder failure.
Third, how to adjust the gear oil pump transmission gear oil pump transmission device after dismantling after repair, first make the movable claw-shaped coupling and the teeth of the fixed claw joint in the all-tooth meshing position, and then in the two positioning plate When the fixing bolt is loosened but not removed, insert the positioning pin on the engagement lever assembly into the hole on the back side of the positioning plate (on the side of the gear pump). If the long slot on the positioning plate has turned to the limit and the positioning pin still cannot be inserted into the hole, the assembly of the lever assembly must be reinstalled to change the position of the spline fitting. After the adjustment, tighten the two positioning plate fixing bolts and Engage the lever assembly fixing bolts. Finally, the lever assembly must be repeatedly toggled several times. The movable claw coupling should slide freely. Observe from the inspection hole that the joint teeth of the two joints should mesh with each other, and the disengaged position should be completely disengaged.
Fourth, how to quickly and conveniently install the piston pin General instructions for the internal combustion engine, the piston heating temperature when the piston pin is specified between 70 °C -100 °C, so that the piston pin hole swell, with the piston pin into a gap Fit so that the piston pin can be loaded smoothly. However, when the piston is heated to 70°C to 100°C, it is hot when assembled, which has a bad influence on the assembly. At the same time, it consumes a large amount of heat energy and also causes waste.
In order to improve the assembly process and save energy, we conducted a heating test on the piston (made of eutectic aluminum-silicon alloy) of the crawler tractor's 4125 diesel engine. Tests have found that when the piston is heated to 50°C, the minimum amount of expansion of its piston pin hole diameter is O. 046 mm with a minimum fit clearance of 0.043 mm. At this point, the piston pin can be smoothly inserted into the piston pin seat hole. Therefore, when the piston pin of the Model 4125 diesel engine is assembled, the piston can be heated to 50° C. or more, and it is not necessary to make the heating temperature too high. As long as wearing a pair of gloves, grab the piston is not hot, the assembly is quick and easy.
V. How to use and maintain the V-belt V-belt In the course of the user's use, the following two problems generally occur, the slippage of the V-belt and the twisting of the V-belt. So, how to adjust and maintain it?
The reason for the slippage of the triangle belt is generally the following three points: 1. The surface of the triangle belt or wheel has oil stains, which can be wiped clean with a flat cloth; 2. The triangular belt is too loose, which needs to be adjusted. Diesel V-belt and clutch V-belt are connected through three or four V-belt. The tightness of V-belt should be appropriate. Too loose will cause serious skid and reduce the rotation efficiency. Over-tightening will cause the relevant parts to be overstressed. Deformation damage. The degree of tightening of the V-belt is to apply a force of about 20 N (about 2 kg) in the tight-edge span of the V-belt, and the 8 to 12 mm of the V-belt is appropriate. The adjustment method is to unscrew the diesel engine foot bolt and tighten the bolt after moving the diesel engine forward or backward to a suitable position. 3. The triangle belt is worn badly and three or four V-belts must be replaced together.
The reason for the torsion of the V-belt is generally due to the misalignment of the two pulleys. The axis of the diesel V-belt and the clutch V-belt should be adjusted to be parallel. The symmetrical center plane of the corresponding slot should be coincident and the error should not exceed 5 mm.