Réamhrá gearr agus cur síos ar dhearadh an chórais ar an aonad sleamhnáin líneach:
◎Linear sliding units are also called linear rails, sliding rails, linear guides, linear sliding rails. They are used in linear reciprocating motion applications. They have a higher rated load than linear bearings, and can bear a certain torque at the same time, which can be used under high load conditions. Realize high-precision linear motion.
Tá an t-aonad sleamhnáin líneach roinnte ina aonad sleamhnáin líneach liathróid chearnógach, aonad sleamhnáin líneach líneach sorcóir dé-ais, agus aonad croí-sleamhnáin líneach singil.
Ar an mórthír, tugtar aonad sleamhnáin líneach air, agus i Taiwan tugtar treoir líneach nó sleamhnán líneach air.
Is í feidhm na treorach tairiscint líneach ná tacú leis na páirteanna gluaisteacha agus iad a threorú chun tairiscint líneach chómhalartach a dhéanamh i dtreo áirithe. De réir nádúr na frithchuimilte, is féidir treoracha tairiscint líneach a roinnt ina threoracha frithchuimilte sleamhnáin, treoracha frithchuimilte rollta, treoracha frithchuimilte leaisteacha, agus treoracha frithchuimilte sreabhach.
◎Linear bearings are mainly used in automated machinery, such as machine tools imported from Germany, paper bowl machines, laser welding machines, etc., of course, linear bearings and linear shafts are used together. Linear sliding units are mainly used for accuracy requirements comparison On the high mechanical structure, the slider-makes the movement change from a curve to a straight line. The new guide rail system enables the machine tool to obtain rapid feed speeds. In the case of the same spindle speed, rapid feed is the characteristic of the linear sliding unit. The linear sliding unit is the same as the flat guide rail. It has two basic elements; one as a guide is a fixed element, and the other is a moving element. Since the linear sliding unit is a standard component, it is a machine tool manufacturer. The only thing to do is to process the plane of a mounting rail and adjust the parallelism of the rail. Of course, in order to ensure the accuracy of the machine tool, a small amount of scraping of the bed or column is essential. In most cases, the installation is relatively simple.
Is cruach cruaite é an t-iarnród treorach mar threoir, a chuirtear ar an eitleán suiteála tar éis meilt fíneáil. I gcomparáid le ráillí treorach comhréidh, tá céimseata thrasghearrthach na n-aonad sleamhnáin líneach níos casta ná na ráillí treorach cothroma. Is é an chúis atá leis an gcastacht ná go gcaithfear grooves a mheaisíniú ar na ráillí treorach chun gluaiseacht na n-eilimintí sleamhnáin a éascú. Braitheann cruth agus líon na n-grooves ar riachtanais an uirlis mheaisín. Feidhm chríochnaithe. Mar shampla: Déantar comparáid idir córas iarnróid treorach a bhfuil fórsa líneach agus móimint threáiteach air agus iarnród treorach nach bhfuil ach fórsa líneach air. Tá an dearadh an-difriúil.
There is no intermediate medium between the moving element and the fixed element of the linear sliding unit, but a rolling steel ball. Because the rolling steel ball is suitable for high{{0}}speed motion, has a small friction coefficient and high sensitivity, it can meet the working requirements of moving parts, such as the tool holder and carriage of the machine tool. The basic function of the fixed element (guide rail) of the linear sliding unit system is like a bearing ring. The bracket for mounting the steel ball is shaped like a "v". The bracket wraps the top and both sides of the rail. In order to support the working parts of the machine tool, a set of linear sliding unit has at least four supports. Used to support large working parts, the number of brackets can be more than four. When the working parts of the machine tool move, the steel balls circulate in the groove of the bracket, and the wear of the bracket is distributed to each steel ball, thereby prolonging the service life of the linear sliding unit. In order to eliminate the gap between the bracket and the guide rail, the preload can improve the stability of the guide rail system and the preload can be obtained. It is to install an oversized steel ball between the guide rail and the bracket. The diameter tolerance of the steel ball is ±20 microns, with 0.5 micron increments. The steel balls are screened and classified and installed on the guide rails respectively. The size of the preload depends on the force acting on the steel balls. If the force acting on the steel ball is too large, the steel ball will withstand the preload for too long, which will increase the movement resistance of the bracket. There is a balance problem here; in order to improve the sensitivity of the system and reduce the movement resistance, the preload must be reduced accordingly, and in order to improve the movement accuracy and the retention of precision, it is required to have sufficient preload negative numbers, which are contradictory two. aspect.
Má tá an t-am oibre ró-fhada, tosaíonn an liathróid chruach a chaitheamh, agus tosaíonn an réamh-ualach ar an liathróid chruach a lagú, rud a fhágann go laghdaítear cruinneas gluaiseachta na gcodanna oibre den uirlis meaisín. Más mian leat an cruinneas tosaigh a choinneáil, ní mór duit an lúibín iarnróid a athsholáthar, nó fiú an t-iarnród a athsholáthar. Má tá éifeacht réamhluchtaithe ag an gcóras iarnróid. Tá cruinneas an chórais caillte, agus is é an t-aon bhealach ná na heilimintí rollta a athsholáthar.
Déanann dearadh an chórais iarnróid treorach iarracht an limistéar teagmhála is mó a bheith ann idir an eilimint sheasta agus an eilimint ghluaiste. Ní hamháin go bhfeabhsaíonn sé seo cumas iompair an chórais, ach freisin is féidir leis an gcóras an fórsa tionchair a ghintear trí ghearradh uaineach nó gearradh domhantarraingthe a sheasamh, an fórsa a scaipeadh go forleathan, agus an cumas imthacaí a leathnú. An réimse fórsa. Chun é seo a bhaint amach, tá cruthanna éagsúla groove ann don chóras iarnróid treorach. Tá beirt ionadaíocha ann. Tugtar cineál Gedai ar cheann (cineál áirse pointeáilte), is é an cruth síneadh leathchiorcail, agus is é an pointe teagmhála an apex; an ceann eile Tá stua-an speiceas agus is féidir leis an ról céanna a imirt. Is cuma cén cineál struchtúir, níl ach cuspóir amháin ann, agus déan iarracht níos mó teagmhála ga liathróid cruach rollta a bheith acu leis an iarnród treorach (eilimint sheasta). Is é an fachtóir a chinneann tréithe feidhmíochta an chórais ná: conas a théann na heilimintí rollta i dteagmháil leis an iarnród treorach, arb é an eochair don fhadhb.
