GUANGZHOU HAOZHI INDUSTRIAL CO., LTD.

Learn from HarmonicDrive, and challenge world-class precision and life span

2019-07-23

Haozhi Mechanical and Electrical HarmonicReducer · Domestic Harmonic Reducer Meeting World-Class Product Standard inBatches



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Haozhi Mechanical and Electrical harmonic reducer is thedomestic product meeting world-class precision and service life standard inbatches. By comparing with international top brands,under the precondition of providing the same product value, the only differenceis the price, so it can largely improve the core competitiveness of robotenterprises and decrease enterprise cost.


R&D Design

On the basis of fully studying the transmissiontheories about harmonic gear, Haozhi Mechanical and Electrical has developedspecial tooth profile and cam profile based on curve mapping theory.

The tooth profile has obtained invention patent:CN104819267A. The number of tooth simultaneously meshed by operating harmonicgear of the tooth profile can reach to 30% of the total tooth. By contrast, thenumber of tooth simultaneously meshed by harmonic gear of traditional involutetooth profile under stress is no more than 15%. Meanwhile, the increase inmeshed tooth can increase the performance of harmonic gear in rigidity,transmission precision, output torque, etc. directly and sharply, and canimprove the amplitude by above 30%.

Schematic Diagram about the Moving Mesh of Flexible Gear and Rigid Gear

Thecam profile line invented by Haozhi Mechanical and Electrical has applied forinvention patent. The cam profile of Haozhi Mechanical and Electrical canimprove the stress value and mesh quality of flexible gear, and improve thedeformation and stress conditions of flexible bearing.

By theaforementioned inventions, both the carrying capacity and service life ofcomplete harmonic reducer will be largely improved, while the transmissionefficiency will also be slightly improved.


Bycomparing with general lubricating grease sold in the market, the speciallubricating grease developed by Haozhi Mechanical and Electrical has theadvantages of low noise, strong durability and excellent efficiencycharacteristics.


Post-test status of general lubricating grease

Post-test status of special lubricating grease


Thecommon problem of harmonic reducer is the leakage of lubricating grease, whichis caused by the big oil seal starting torque of general specification in themarket. In order to decrease the starting torque, we have to decrease thecooperation between axle and oil seal, but this will cause the leakage oflubricating grease. In order to overcome the aforementioned problems, HaozhiMechanical and Electrical adopts new materials with low abrasion coefficientand better self-lubricating property, and has independently developed newsealing design, and decreased starting torque on the precondition of ensuringthe sealing pressure.




Technologicaldesign

The main failure mode of harmonic reducer includes normal stress fracture and fatigue fracture, so flexible gear materials should have higher fatigue strength and high tenacity with small sensibility for stress concentration. The gentle gear produced by Haozhi Mechanical and Electrical has adopted special thermal treatment mode, and largely improved the fatigue resistance of gentle gear.

Another pain spot of the industry is the precision retaining ability of harmonic reducer. The main reason causing the decrease of precision is the constant abrasion of rigid gear and flexible gear meshes. The rigid gear of Haozhi Mechanical and Electrical reducer fully adopts imported cast iron with high strength, and excellent self-lubricating performance, which can decrease product noise while ensuring precision life.

Haozhi Mechanical and Electrical adopts the same processing plan with international top brand, and has developed the special fixture for flexible gear processing, which has solved current problems, including uneven thickness of flexible gear at home, easy-to-concentrate stress, and bad fatigue resistance, etc.

To ensure the consistency and stability of products during ex-factory, the key dimensions of all components are strictly selected, and each equipped product will be subject to frequency spectrum monitoring, to truly realize full closed-loop control of the assembly process.




Production Guarantee

In order to solve the flexible problem of discretemanufacturing based on machining, Haozhi Aircraft Unmanned Production LineWorkshop integrates MES, CAPP, WMS, CPS and SPS tool management systems torealize automatic delivery of production tasks, automatic distribution ofmaterials, automatic switching of grippers and in-machine tools, automaticscrap cutting and automatic transfer processing. Procedures and drawings,automatic material collection, job reporting and warehousing, the overallproduction efficiency increased by about 50%.

Haozhi Electrical Machinery applies the industrial Internet to the production process management. The equipment of the production line can automatically collect the processing data by installing sensors and data transmission module networking access platform to realize the visualization and predictive maintenance of the production equipment status and the optimization of energy consumption monitoring. %3


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