18 years of focus on hydraulic nut research and development and intelligent manufacturing
Originated from European and American technology · Exported to more than 20 countries
Bearing assembly and disassembly uses hydraulic nuts – inch threads.Its working principle is through a high-pressure oil pump will be injected into the nut of hydraulic oil, push the piston to produce axial tensile force, the use of the material’s own elasticity will be thread locking, so as to achieve the effect of pre-tightening and anti-loosening.
Bolt tensioner generally consists of hydraulic pump, high pressure hose, pressure gauge and tension body. Among them, the hydraulic pump is the power source, the pressure gauge reflects the output pressure of the pump, the high-pressure hose connects the hydraulic pump and the stretching body. Tension body is to achieve the bolt stretching of the executive element. Mainly by the piston cylinder, piston, support bridge and stretching nut composition. Structure as shown in the figure ‘the structure of the bolt tensioner’. When working, the high-pressure oil output from the power source is transported to the piston cylinder through the high-pressure hose, and the piston in the piston cylinder moves up under the pressure, driving the stretching nut to move upwards. The stretching nut is threaded with the working bolt, so as to elongate the working bolt, so that the bolt elongation reaches the required deformation, the deformation is controlled within the range of elastic deformation, and then carry out pre-tensioning or dismantling operations, and finally make the working bolt return to its original shape by means of hydraulic or mechanical return to the original shape to complete the operation.
Hydraulic nuts for upper loads can be set to a precise preload with an accuracy of up to 3% earth; they can be supplied with a stroke indicator that allows the amount of tension to be observed, measured and controlled during operation.
SL-HN series top load hydraulic nuts are especially suitable for tightening in narrow spaces and heavy duty vibrating machinery, and can be assembled with several bolts at the same time. The torque-free design avoids friction, bolt twisting and other factors affecting bolt preload, and the tightened bolt is subjected to pure tensile force.
Coal machine hydraulic nuts are nuts used in hydraulic systems in coal mining equipment. Hydraulic nuts generally consist of two parts: a screw and a nut. They connect the two parts together by hydraulic pressure to achieve the function of tightening.
The locking of hydraulic nut of coal mining machine is different from ordinary nut, the locking of ordinary nut is to rely on turning the spanner to generate torque to lock, hydraulic nut in the locking project, is to rely on hydraulic pressure to act directly on the nut to generate ultra-high-pressure preload, even in the vibration of the working conditions, the parts will not loosen the connection.
The hydraulic nut is especially suitable for tightening the parts of coal mining equipment.
SL-HM series hydraulic nut is our high and new product,The body is chromium-molybdenum steel, replacing foreign first-tier brand products. The surface is knurled and blackened, light weight and easy to install and disassemble using specific wrenches, the working principle of the hydraulic nut of the slitting machine is to input the hydraulic oil into the nut through the high pressure oil pump, and push the piston to produce thrust and tension, so as to fasten the rotating tools (such as gaskets, knives, etc.). Specifically, use the ‘T-handle’ to rotate the ‘pressurised screw’ and press in the ‘pressurised piston’ to increase the pressure of the sealing fluid, which in turn squeezes out the ‘ring piston’. ‘In this case, the sealing fluid pressure increases and squeezes out the ‘ring piston’ to tighten the rotating tool (washer, cutter, etc.). At the same time, it is possible to check whether the scale of the ‘Thrust Indicator’ corresponds to the determined thrust value. In addition, the slitting machine hydraulic nut is characterised by a high axial locking force, which securely locks the blade on the slitting machine and prevents deformation under axial pressure.
The body is made of aluminum and titanium alloy, replacing foreign first-tier brand products. Knurling surface, light weight, easy to install and disassemble with specific wrench.
The principle of operation of the slitter hydraulic nut is to generate hydraulic pressure through the manual adjusting bolt, pushing the piston to generate a clamping force on the stressed ring, thus squeezing out the piston ring to tighten the rotary tool or fixed pitch ring. Specifically, the SL-Nut Slitter Hydraulic Nut uses a simple ‘T-Handle’ to rotate the ‘Pressure Screw’ to press in the ‘Pressure Piston’. At this point, the sealing hydraulic pressure is increased and the ‘ring piston’ is squeezed out and used to tighten the screw tool (washer, tool, etc.).
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Jiangsu Taizhou Suoli Machinery Manufacturing Co., Ltd.
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