Xi'an Kunlun Group's Xi'an Kunlun hydraulic transmission company developed this kind of high-efficiency, energy-saving, energy-saving, emission-reducing and environmental-friendly new hydraulic-driven CNG sub-station compressor products, which fills the domestic use of hydraulic driving principles to achieve gas A gap in compression technology, and obtained two national utility model patents.
As the main equipment of the CNG vehicle refueling station, the performance of the compressor product plays a key role in the operation cost and operating efficiency of the refueling station. Therefore, continuous improvement of product performance, improvement of compressor operating efficiency, reduction of energy consumption, reduction of exhaust emissions, improvement of equipment reliability, and reduction of routine maintenance costs have been the direction of technological innovation in the R&D and manufacturing industries of compressors. At the beginning of 2007, Xi'an Kunlun Hydraulic Drive Co., Ltd. started to use the technical accumulation of hydraulic system products and the design and manufacture of cylinders and cylinders for the development of hydraulically driven CNG compressors, which was completed in July 2007. The prototype of the first generation of prototypes has achieved initial success, and 35 sets of batches have been achieved, and all of them have been put into use for sale. Through the use of a number of automotive refueling stations, the product has shown superior performance characteristics in terms of energy saving, consumption reduction, emission reduction, and environmental protection. Xiayuan West Road gas station after using this product, the monthly electricity from the original 20,000 yuan, reduced to more than 7000 yuan, as well as the electricity charge collection unit several times to check the line, mistakenly believe that the gas station has electricity theft .
Compared with the conventional natural gas compressor products that are commonly used at present, the main advantages of the new hydraulically driven compressor products developed by Xi'an Kunlun Hydraulic Transmission Company are shown in the following aspects: First, it is highly efficient. The new type of hydraulically driven compressor adopts a soft seal form, which effectively improves the compression efficiency. Under the same driving power conditions, the average displacement of compressed gas can be more than doubled. The second is energy saving. Most domestic compressed natural gas vehicle filling stations use positive displacement compressors. Under the same scale, their cost competition is mainly reflected in energy consumption. The third is consumption reduction, emission reduction and environmental protection. The new hydraulically driven compressor has no tail gas emissions, which not only saves natural gas, reduces operating costs, but also reduces environmental pollution. Fourth, strong applicability. Since the power of the motor used in the new hydraulically-driven compressor is small (less than 37kW, and the power of the conventional compressor motor is basically above 75kW), and the soft-start method is adopted, the load demand on the connected power grid is low, and the power grid The small impact not only reduces the investment in the establishment of the station, reduces the instantaneous power consumption of the motor startup, but also does not affect the surrounding power users due to the impact on the access to the power grid.
Their rollers and the outer wheels are arranged in a right angle intersecting intersecting. They can bear the load from all directions at the same time (such as axial, thrust or momentum hormones, etc.). Because of the linear contact between the roller and the track surface, the possibility of the axis to bear the load and the elastic deformation is very small. This type of bearing is widely used in industrial robots, working machines and medical facilities. It needs high rigidity, high speed and high speed to ensure precise occasions.
In cross roller bearings, cylindrical rollers are perpendicular to each other through spacer retainers on the top, so 1 cross roller bearings can bear all loads of radial load, axial load and torque load. Ring size is the minimum limit of miniaturization, especially very thin type is small size close to the limit, and has high rigidity, so the most suitable for use in industrial robot joint or rotating parts, machining center machine rotary table, hand rotating parts, precision rotary table, medical machine, metering device, IC manufacturing equipment etc.
1. Excellent rotation accuracy
The inner structure of the Cross Roller Bearing is arranged in 90 degrees perpendicular to each other by the roller.
The roller is equipped with a spacer or isolation block between the rollers to prevent the rolling of the rollers from being examined each other. In addition, the phenomenon of roller contact or locking will not occur. At the same time, because the inner and outer ring is a segmented structure, the clearance can be adjusted, even if the preload is applied, high accuracy rotation motion can also be achieved.
2. Simplification of operation and installation
The outer ring or inner ring, which is divided into 2 parts, is fixed together after loading the roller and the holder, so the operation is very simple.
3. Bear large axial and radial load
The roller is arranged vertically through the spacer retainer on a 90 degree V groove rolling surface.
4. Greatly save the installation space
The size of the inner and outer ring cross roller bearing is miniature minimal, especially ultra-thin structure is small size close to the limit, and has high rigidity, so the most suitable for industrial robot joints or rotating parts, machining center of the rotary table, the robot rotating parts, precision rotary table, medical instrument IC, measuring equipment, manufacturing device widely used.
5. high speed ability
6. reducing shaft length and machining cost, thermal expansion leads to a limited change in geometric size.
7. the nylon separator is used, the moment of inertia is low, the starting torque is low, and the angle degree is easy to control.
8. optimization of pretightening force, large rigidity, high precision of guiding roller
9. carbon steel provides excellent impact resistance and surface abrasion resistance
10. simple but fully lubricated
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