CN208169458U - A kind of frictional bidirectional output speed reduction bearing - Google Patents

Abstract

The utility model discloses a kind of frictional bidirectional output speed reduction bearings, including input shaft, output shaft, output set and bearing assembly；The bearing assembly includes that inner ring, outer ring, and rolling are matched with the cylindrical roller between the inner ring and outer ring and with central rotating shaft；The input shaft transmission connection is connected respectively in the inner ring, the output shaft and output set in the left and right sides of the central rotating shaft, and exports set rotating jacket in the input shaft；The cylindrical roller includes metal core retainer plate and fixed jacket in the rubber wheel of the metal core retainer plate；Salient point is distributed in the outer circle of the rubber wheel, and pit is distributed in the outer ring inner circle；This speed reduction bearing can reliably support shaft as bearing, and can realize that the deceleration of input shaft increases square as retarder.

Description

A kind of frictional bidirectional output speed reduction bearing

Technical field

The utility model relates to field of bearings, and in particular to a kind of frictional bidirectional output speed reduction bearing.

Background technique

Bearing is a kind of important spare part in contemporary mechanical equipment.Its major function is support shaft rotation, reduces it Coefficient of friction in motion process, and guarantee its rotating accuracy.Retarder is also components common in modern industry, purpose It is to play a part of to match revolving speed between prime mover and working machine or executing agency and transmit torque, the purpose using it is to reduce Revolving speed, increase torque, especially planetary reduction gear, it is compact-sized, it is small in size and have biggish transmission ratio.

Therefore, it is necessary to one kind reliably to be supported as bearing to shaft, and can realize input shaft as retarder Deceleration increase square a kind of frictional bidirectional output speed reduction bearing.

Utility model content

In view of this, bearing can be used as by providing one kind the purpose of the utility model is to overcome defect in the prior art Shaft is reliably supported, and can realize that the deceleration of input shaft increases a kind of frictional bidirectional output deceleration of square as retarder Bearing.

The frictional bidirectional output speed reduction bearing of the utility model, including input shaft, output shaft, output set and bearing group Part；The bearing assembly includes that inner ring, outer ring, and rolling are matched between the inner ring and outer ring and have central rotating shaft Cylindrical roller；The input shaft transmission connection is connected respectively in the inner ring, the output shaft and output set in described The left and right sides of central rotating shaft, and set rotating jacket is exported in the input shaft；The cylindrical roller includes metal core retainer plate and consolidates Surely it is coated at the rubber wheel of the metal core retainer plate；Salient point is distributed in the outer circle of the rubber wheel, and the outer ring inner circle is distributed with recessed Hole.

Further, the inner circle of the output set is equipped with the sliding layer of polytetrafluoroethylene (PTFE) production, and passes through the sliding layer and institute State the outer circle cooperation of input shaft；

Further, ball is equipped between the inner ring end face and output shaft end face, and inner ring end face and output shaft end face are total With the ring raceway formed for accommodating ball；

Further, the output shaft and output set one end are each formed with flange, are distributed on the flange and central rotating shaft The connecting hole of cooperation.

The utility model has the beneficial effects that：A kind of frictional bidirectional output speed reduction bearing provided by the utility model, axis Inner ring, outer ring and the rolling element held can be respectively as the sun gear of planetary reduction gear, outer ring and planetary gear；Input shaft can pass through Spline etc. is sequentially connected in inner ring, and outer ring is kept fixed, and output shaft and output set are used as the outside output power of planet carrier, by Be located at central rotating shaft two sides in output shaft and output set, therefore, in transmission process, deflecting action power that cylindrical roller is subject to compared with Small, central rotating shaft is not susceptible to skew, and the present apparatus can reliably support shaft as bearing, and can be real as retarder The deceleration of existing input shaft increases square.

Detailed description of the invention

The utility model is further described with reference to the accompanying drawings and examples：

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the schematic diagram of the cylindrical roller of the utility model.

Specific embodiment

Fig. 1 is the structural schematic diagram of the utility model, as shown, the frictional bidirectional output deboost axle in the present embodiment It holds, including input shaft 2, output shaft 7, output set 3 and bearing assembly；The bearing assembly includes inner ring 1, outer ring 5, and rolling The inner ring 1 is matched between outer ring 5 and the cylindrical roller 4 with central rotating shaft 6 (4 elastic conjunction of cylindrical roller is in inner ring Between 1 and outer ring 5)；The transmission connection of input shaft 2 is connected respectively in the inner ring 1, the output shaft 7 and output set 3 In the left and right sides of the central rotating shaft 6, and 3 rotating jackets of set are exported in the input shaft 2；The cylindrical roller 4 includes gold Belong to core retainer plate 8 and fixed jacket in the rubber wheel 9 of the metal core retainer plate 8；Salient point is distributed in the outer circle of the rubber wheel 9, described outer Pit is distributed in circle inner circle；Metal core retainer plate 8 is rotatably assorted with central rotating shaft, rubber wheel 9 and outer ring inner circle frictional fit, salient point and Dotted pit can be improved the frictional force of the two；Inner ring 1, outer ring 5 and the rolling element of bearing can be respectively as planetary reduction gears Sun gear, outer ring 5 and planetary gear；Input shaft 2 can be sequentially connected by spline etc. in inner ring 1, and outer ring 5 is kept fixed, defeated As the outside output power of planet carrier, (output shaft 7 and output set 3 can be fixed with gear, and power is defeated for shaft 7 and output set 3 Out), since output shaft 7 and output set 3 are located at 6 two sides of central rotating shaft, in transmission process, cylindrical roller 4 is subject to inclined Transfer to firmly smaller, central rotating shaft 6 is not susceptible to skew, and the present apparatus can reliably support shaft as bearing, and energy Realize that the deceleration of input shaft 2 increases square as retarder.

In the present embodiment, the inner circle of the output set 3 is equipped with the sliding layer of polytetrafluoroethylene (PTFE) production, and passes through the sliding layer Cooperate with the outer circle of the input shaft 2；The coefficient of friction of polytetrafluoroethylene (PTFE) is extremely low, can reduce between input shaft 2 and output set 3 Frictional force caused by power damage.

In the present embodiment, ball, and 1 end face of inner ring and output shaft are equipped between 1 end face of inner ring and 7 end face of output shaft The ring raceway for accommodating ball is collectively formed in 7 end faces, which can guarantee to keep minimum between inner ring 1 and output shaft 7 Gap, avoid interfering.

In the present embodiment, the output shaft 7 and 3 one end of output set are each formed with flange, are distributed with on the flange The connecting hole that heart shaft 6 cooperates, also is provided with ball between central rotating shaft 6 and the inner circle of cylindrical roller 4, to reduce cylindrical roller 4 The resistance of rotation can be equipped with the bushing of wear-resistant material production in the connecting hole on flange, with reduce central rotating shaft 6 and connecting hole it Between abrasion.

Finally, it is stated that above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application, although ginseng The utility model is described in detail according to preferred embodiment, those skilled in the art should understand that, it can be to this The technical solution of utility model is modified or replaced equivalently, without departing from the objective and model of technical solutions of the utility model It encloses, should all cover in the scope of the claims of the utility model.

Claims (1)

1. a kind of frictional bidirectional output speed reduction bearing, it is characterised in that：Including input shaft, output shaft, output set and bearing group Part；The bearing assembly includes that inner ring, outer ring, and rolling are matched between the inner ring and outer ring and have central rotating shaft Cylindrical roller；The input shaft transmission connection is connected respectively in the inner ring, the output shaft and output set in described The left and right sides of central rotating shaft, and set rotating jacket is exported in the input shaft；The cylindrical roller includes metal core retainer plate and consolidates Surely it is coated at the rubber wheel of the metal core retainer plate；Salient point is distributed in the outer circle of the rubber wheel, and the outer ring inner circle is distributed with recessed Hole；The inner circle of the output set is equipped with the sliding layer of polytetrafluoroethylene (PTFE) production, and passes through the outer of the sliding layer and the input shaft Circle cooperation.