The flexible bearing is the key component of the harmonic reducer
Flexible bearing which causes controlled elastic deformation of the flexible wheel. Its performance and lifetime will significantly affect the normal operation of the harmonic reducer. In order to improve the life and operating performance of the flexible bearing, its load distribution needs to be calculated. Based on the thin-walled ring theory, the relationship between the radial deformation of the triple force ring and the load is derived. Then a three-force ring superposition model is established for fast calculation of the load distribution of elliptical cam flexible bearings in harmonic reducers. The validity of the proposed model is demonstrated by comparison with the static analysis model. In this paper, the effects of ball number and external load on load distribution are investigated, and the three-force ring superposition method is used to study the radial deformation and bending normal stress of the external ring. Based on the deformation of the three-force ring, the deformation characteristics and bending normal stress distribution of the outer ring of the flexible bearing are analyzed, and several regular results are found.
Harmonic gear reducers are widely used in industrial robots, aerospace, optics and other high-end fields
The failure of harmonic gear reducers is mainly caused by the damage of flexible bearings and flexible wheels of thin-walled wear parts. In order to study the contact mechanics characteristics of flexible parts such as flexible bearings and flexible wheels in harmonic gear reducers, the contact mechanics model of flexible bearings in harmonic gear reducers, the differential equation of vibration of flexible wheels and the finite element model of each part are established. Based on the established harmonic gear reducer model, the effects of the flexure wheel cylinder length and cylinder bottom thickness on the stress of the flexure wheel are discussed respectively, and the motion characteristics of the flexure bearing are studied. Meanwhile, the spatial distribution of the flexure wheel displacement and the axial vibration response of the flexure wheel are studied. The correctness of the model established in this paper is verified by experiments. The results show that the increase of cylinder length can improve the stress of the flexure wheel of the harmonic gear reducer; the wall thickness of the cylinder bottom mainly affects the stress of the bottom of the flexure wheel, while it has little effect on the stress of the tooth ring and the glossy cylinder. Along the direction of the flexure wheel axis, the radial displacement, circumferential displacement and angular displacement increase linearly with the increase of the axial distance between the cylinder and the bottom. When the excitation frequency is high, the vibration mode of the flexure wheel shell is mainly axial vibration.
Flexible bearings are an alternative to conventional mechanical bearings.
In the latter case, motion is obtained by sliding or rolling motion between two (or more) entities and the resulting mechanical nonlinearity (friction, front sliding displacement ……), whereas flexible bearings depend on the elastic properties of the substance and therefore have several advantages:
-No need for lubrication
-No risk of interference
-Possibility of monolithic manufacturing, thus “designed for no assembly”
Luoyang LIKE Precision Machinery Co., Ltd – LKPB
Main products are rotary table bearings YRT, YRTS,YRTM,ZKLDF series and crossed roller bearings RA/RAU, RB, RE, RU, SX, XU, XR/JXR, XSU,CRB/CRBC, CRBS, CRBH, CRBT, CRBF.
Precision can be P5、P4 and P2，And the size range is φ20mm – φ2000mm. With more than 10 years of production experience, Can be OEM, Non-Standard Bearings Made To Order，Welcome to contact us
Wechat/WhatsAPP: +86 15670310586
Luoyang LIKE Precision Machinery Co., Ltd – LKPB，Located in Luoyang, which is a bearing manufacturing base in China, we are an enterprise focusing on the research, development and manufacture of precision bearings, mainly producing precision crossed roller bearings and rotary table bearings and various non-standard bearings with precision class of P5, P4 , P2 and VSP.
The company strictly follows the ISO9001 quality system requirements for product quality control, relying on the professional technology of the bearing production base, the product quality is stable and cost-effective, and is well received by customers at home and abroad. The company adheres to the concept of “openness, professionalism and responsibility”, and strives to become a professional bearing application service provider. Welcome customers to negotiate, looking forward to sincere cooperation with you, willing to achieve a win-win situation with you!
Luoyang LIKE Precisoin Machinery Co., Ltd has accumulated rich production experience in the past 10 years, supporting OEM service. Our products are exported to Germany, Italy, Korea, Japan, the United States, Belgium, Turkey and so on.
Top quality: Rotary table bearing (YRT, YRTS, YRTM, ZKLDF series) ; Cross Roller Bearing (RA/RAU, RB, RE, RU, SX, XU, XR/JXR, XSU,CRB/CRBC, CRBS, CRBH, CRBT, CRBF series); Harmonic Reducer Bearings ( CSF, SHF series); Hollow Rotary Platform bearings ( ZK series); and Flexible Bearings ( FS series ) .
Yes, We have experience working in this area
The main application areas of our products are precision rotary tables, machining center rotary tables, industrial robot joints and rotating, robotic rotating parts, CNC machine tools, automation industry, direct drive motors, precision instruments, radar, medical equipment and other industries.
Regular models are in stock, reasonable prices, ready for delivery, non-standard precision bearings according to the requirements of the drawings and the number of 1-3 weeks delivery time
LKPB With more than 10 years of production experience
Supporting OEM service; 50 days return service; 7*24 hours technical support; Accept non-standard customization; Product comes with 12 months warranty