CN205244315U - Drive assembly of speed reducer - Google Patents

Abstract

The utility model provides a drive assembly of speed reducer belongs to mechanical technical field. It has solved the unstable problem of current speed reducer drive assembly transmission. The transmission shaft of this drive assembly of speed reducer in locating the box, be equipped with flange between transmission shaft and the box, link to each other through the bearing between transmission shaft and the flange, the last outer ring channel no. 1 of having offered of bearing inner race, bearing inner race is last offered in ring channel no. 1, flange is last to have offered outer ring channel no. 2 with bearing inner race contact department, last the offering of flange makes outer ring channel no. 2 and the outside accessibke porosity that is linked together, ring channel no. 2 in having offered with bearing inner race contact department on the transmission shaft, offer on the transmission shaft and make interior ring channel no. 2 and the outside interior through -hole that is linked together, outer ring channel one, outer ring channel two, interior ring channel one, interior ring channel two, it has the liquidity plastics all to fill in accessibke porosity and the interior through -hole, the exit of accessibke porosity and interior through -hole all is equipped with the end cap. The utility model discloses an operation of bearing and transmission shaft is more stable.

Description

A kind of transmission component of reductor

Technical field

The utility model belongs to field of mechanical technique, relates to a kind of reductor, particularly a kind of transmission component of reductor.

Background technology

Reductor is a kind of power transmission mechanism, utilizes the velocity transducer of gear, and the winding number of power source is decelerated to desired winding number, and obtains the mechanism of larger torque. In the current mechanism for transferring power and motion, reductor range of application is fairly widespread, as boats and ships, automobile, locomotive, heavy machinery, machining machine and tool and automated production equipment etc., its application is from the transmission work of large power, to little load, accurate angle transmission can be seen the application of reductor, and in commercial Application, reductor has deceleration and increases torque functions, is therefore widely used in the conversion equipment of speed and moment of torsion.

The transmission component of reductor is the crucial parts of reductor, conventionally be made up of bearing, power transmission shaft and gear, size, span, bearing designation, Technology for Heating Processing, method for fine finishing and supporting lubricating system and the lubricating oil product thereof of the strength of gear teeth, axle are all the factors that affects reductor service behaviour.

Because reductor is precision instrument, power transmission shaft and bearing need to keep relative stability in the course of the work, can not rock, and bearing in existing speed reducer drive assembly and the connected mode of power transmission shaft are standard machinery syndeton, in transmission process, easily occur rocking, thereby cause accuracy and performance to reductor to impact.

Summary of the invention

The purpose of this utility model is for the above-mentioned problems in the prior art, the speed reducer drive assembly that provides a kind of bearing and power transmission shaft to turn round stable.

The purpose of this utility model can realize by following technical proposal: a kind of transmission component of reductor, this reductor comprises casing, its transmission component comprises the power transmission shaft being arranged in casing and is sheathed on the gear on turning cylinder, between described power transmission shaft and casing, be provided with adpting flange, between described power transmission shaft and adpting flange, be connected by bearing, described bearing is by bearing outer ring, bearing inner race and ball composition, it is characterized in that, on the outer wall of described bearing outer ring, offer outer annular groove one, on the inwall of described bearing inner race, offer interior cannelure one, on described adpting flange, offer the outer annular groove corresponding with outer annular groove one two with bearing outer ring contact position, on described adpting flange, offer and make outer annular groove two and the outside accessibke porosity being connected, on described power transmission shaft, offer the interior cannelure two corresponding with interior cannelure one with bearing inner race contact position, on described power transmission shaft, offer and make interior cannelure two and the outside inner via hole being connected, described outer annular groove one, outer annular groove two, interior cannelure one, interior cannelure two, in accessibke porosity and inner via hole, be all filled with liquid plastics, described accessibke porosity and the exit of inner via hole are provided with plug.

Between the transmission component middle (center) bearing of this reductor and power transmission shaft, fill liquid plastics, liquid plastics is existing a kind of novel plastic, it has incompressible characteristic, utilize its characteristic can make bearing with transmission shafts to relative static, thereby ensured in bearing and power transmission shaft operation process stable.

In the transmission component of above-mentioned a kind of reductor, the middle part of described power transmission shaft is the axial diameter that the circumferential diameter of axle body portion and axle body portion is greater than other positions of power transmission shaft, one end face of described bearing inner race is resisted against on the side end face of power transmission shaft axle body portion, on the inner face of described adpting flange, have the flange part of a circle to bearing direction projection, described flange part is resisted against on the end face of bearing outer ring. This structural design can prevent bearing and power transmission shaft left and right play in the course of the work, makes the stability of reductor in transmission process better.

In the transmission component of above-mentioned a kind of reductor, between described power transmission shaft and adpting flange, be provided with the oil sealing that prevents that casing inner fluid from leaking outside.

In the transmission component of above-mentioned a kind of reductor, described oil sealing comprises ring body, on a side side of ring body, offer Baltimore groove, in ring body, be installed with the L-shaped supporter of cross section, on the inner ring surface of ring body, be arranged at intervals with sealing bulge loop one and sealing bulge loop two along the axial location of ring body. This support physical efficiency improves the mechanical strength of this oil sealing, and sealing bulge loop one and sealing bulge loop two are that the extruding of power transmission shaft outer wall is sealed.

Compared with prior art, the transmission component of this reductor.

Brief description of the drawings

Fig. 1 is the structural representation of this reductor.

Fig. 2 is the enlarged drawing of circle A in Fig. 1.

In figure, 1, casing; 2, power transmission shaft; 2a, axle body portion; 3, gear; 4, adpting flange; 5, bearing; 5a, bearing outer ring; 5b, bearing inner race; 5c, ball; 6, outer annular groove one; 7, interior cannelure one; 8, outer annular groove two; 9, accessibke porosity; 10, interior cannelure two; 11, inner via hole; 12, liquid plastics; 13, plug; 14, flange part; 15, oil sealing; 16, ring body; 17, Baltimore groove; 18, supporter; 19, sealing bulge loop one; 20, sealing bulge loop two.

Detailed description of the invention

Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.

As Fig. 1, shown in Fig. 2, the transmission component of this reductor comprises the power transmission shaft 2 being arranged in box body of speed reducer 1 and is sheathed on the gear 3 on turning cylinder, between power transmission shaft 2 and casing 1, be provided with adpting flange 4, between power transmission shaft 2 and adpting flange 4, be connected by bearing 5, bearing 5 is by bearing outer ring 5a, bearing inner race 5b and ball 5c composition, on the outer wall of bearing outer ring 5a, offer outer annular groove 1, on the inwall of bearing inner race 5b, offer interior cannelure 1, on adpting flange 4, offer the outer annular groove corresponding with outer annular groove 128 with bearing outer ring 5a contact position, on adpting flange 4, offer and make outer annular groove 28 and the outside accessibke porosity 9 being connected, on power transmission shaft 2, offer the interior cannelure two 10 corresponding with interior cannelure 1 with bearing inner race 5b contact position, on power transmission shaft 2, offer and make interior cannelure 2 10 and the outside inner via hole 11 being connected, outer annular groove 1, outer annular groove 28, interior cannelure 1, interior cannelure 2 10, the interior liquid plastics 12 that is all filled with of accessibke porosity 9 and inner via hole 11, the exit of accessibke porosity 9 and inner via hole 11 is provided with plug 13.

In installation process, first plug 13 is opened, liquid plastics 12 pours in outer annular groove 1, outer annular groove 28, interior cannelure 1 and interior cannelure 2 10 by accessibke porosity 9 and inner via hole 11 respectively, after filling completely, again plug 13 is blocked, utilize the incompressible characteristic of liquid plastics 12, make between bearing 5 and power transmission shaft 2 relatively staticly, ensured the stability of speed reducer drive assembly in operation process.

Progressive one describes in detail, and the middle part of power transmission shaft 2 is the axial diameter that the circumferential diameter of the 2a of axle body portion and the 2a of axle body portion is greater than power transmission shaft 2 other positions. In order to prevent transmission component bearing 5 and the power transmission shaft 2 left and right play in the course of the work of this reductor, an end face of bearing inner race 5b is resisted against on the side end face of power transmission shaft 2 2a of axle body portion, on the inner face of adpting flange 4, have the flange part 14 of a circle to bearing 5 direction projections, flange part 14 is resisted against on the end face of bearing outer ring 5a.

Progressive one describes in detail, is provided with the oil sealing 15 that prevents that casing 1 inner fluid from leaking outside between power transmission shaft 2 and adpting flange 4. In the time that reality is manufactured, this oil sealing 15 is mainly made up of ring body 16, on a side side of ring body 16, offer Baltimore groove 17, in ring body 16, be installed with the L-shaped supporter of cross section 18, on the inner ring surface of ring body 16, be arranged at intervals with sealing bulge loop 1 and sealing bulge loop 2 20 along the axial location of ring body 16, this supporter 18 can improve the mechanical strength of this oil sealing 15, and sealing bulge loop 1 and sealing bulge loop 2 20 are that the extruding of power transmission shaft 2 outer walls is sealed.

Specific embodiment described herein is only to the explanation for example of the utility model spirit. The utility model person of ordinary skill in the field can make various amendments or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.

Although more used the terms such as casing 1, power transmission shaft 2, the 2a of axle body portion, gear 3, adpting flange 4, bearing 5, bearing outer ring 5a, bearing inner race 5b, ball 5c, outer annular groove 1, interior cannelure 1, outer annular groove 28, accessibke porosity 9, interior cannelure 2 10, inner via hole 11, liquid plastics 12, plug 13, flange part 14, oil sealing 15, ring body 16, Baltimore groove 17, supporter 18, sealing bulge loop 1, sealing bulge loop 2 20 herein, do not got rid of the possibility that uses other term. Use these terms to be only used to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.

Claims (4)

1. the transmission component of a reductor, this reductor comprises casing (1), its transmission component comprises and is arranged in the power transmission shaft (2) in casing (1) and is sheathed on the gear (3) on turning cylinder, between described power transmission shaft (2) and casing (1), be provided with adpting flange (4), between described power transmission shaft (2) and adpting flange (4), be connected by bearing (5), described bearing (5) is by bearing outer ring (5a), bearing inner race (5b) and ball (5c) composition, it is characterized in that, on the outer wall of described bearing outer ring (5a), offer outer annular groove one (6), on the inwall of described bearing inner race (5b), offer interior cannelure one (7), described adpting flange (4) is upper offers the outer annular groove corresponding with outer annular groove one (6) two (8) with bearing outer ring (5a) contact position, on described adpting flange (4), offer and make outer annular groove two (8) and the outside accessibke porosity (9) being connected, described power transmission shaft (2) is upper offers the interior cannelure two (10) corresponding with interior cannelure one (7) with bearing inner race (5b) contact position, on described power transmission shaft (2), offer and make interior cannelure two (10) and the outside inner via hole (11) being connected, described outer annular groove one (6), outer annular groove two (8), interior cannelure one (7), interior cannelure two (10), in accessibke porosity (9) and inner via hole (11), be all filled with liquid plastics (12), described accessibke porosity (9) and the exit of inner via hole (11) are provided with plug (13).

2. the transmission component of a kind of reductor according to claim 1, it is characterized in that, the middle part of described power transmission shaft (2) is the axial diameter that the circumferential diameter of axle body portion (2a) and axle body portion (2a) is greater than other positions of power transmission shaft (2), one end face of described bearing inner race (5b) is resisted against on the side end face of power transmission shaft (2) axle body portion (2a), on the inner face of described adpting flange (4), have the flange part (14) of a circle to bearing (5) direction projection, described flange part (14) is resisted against on the end face of bearing outer ring (5a).

3. the transmission component of a kind of reductor according to claim 2, is characterized in that, is provided with the oil sealing (15) that prevents that casing (1) inner fluid from leaking outside between described power transmission shaft (2) and adpting flange (4).

4. the transmission component of a kind of reductor according to claim 3, it is characterized in that, described oil sealing (15) comprises ring body (16), on a side side of ring body (16), offer Baltimore groove (17), in ring body (16), be installed with the L-shaped supporter of cross section (18), on the inner ring surface of ring body (16), be arranged at intervals with sealing bulge loop one (19) and sealing bulge loop two (20) along the axial location of ring body (16).