CN222760258U - Gear box structure of feeder - Google Patents

Abstract

The utility model discloses a gear box structure of a feeder, which consists of an input shaft assembly, a box body assembly and an output shaft assembly, wherein the input shaft assembly consists of an input shaft, an input shaft sleeve, a driving wheel, a bearing a and a bearing b, the box body assembly consists of a wave spring a, a lip-shaped sealing ring a, an O-shaped sealing ring, a box cover, a side end cover, a wave spring b, a lip-shaped sealing ring c, an upper end cover and a box body, and the output shaft assembly consists of a fastening bolt, a bearing c, an output shaft sleeve, a driven wheel, a bearing d, a fastening nut, a feeding screw and an output shaft. The utility model prevents the problems that the driving wheel cannot be fixed or the bearing a and the bearing b are damaged due to overlarge axial force caused by part processing errors, and the relative sliding friction is generated among the input shaft sleeve, the driving wheel, the bearing a and the bearing b.

Description

Gear box structure of feeder

Technical Field

The utility model relates to the technical field of feeders, in particular to a gearbox structure of a feeder.

Background

In practical application, the feeder gear box mostly adopts a common double-group bearing rigid link structure, and the bearing and the gear are easy to misplace due to the fact that the machining precision of parts cannot be guaranteed in the installation process, and the bearing and the gear are easy to move in a long-term working state, so that equipment is easy to damage, and equipment maintenance cost is increased.

Disclosure of utility model

In order to solve the problems of dislocation of bearings and gears and running of the existing feeder gear box during installation and use, the utility model provides a gear box structure of a feeder.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

The gearbox structure of the feeder comprises an input shaft assembly, a box body assembly and an output shaft assembly, wherein the input shaft assembly comprises an input shaft, an input shaft sleeve, a driving wheel, a bearing a and a bearing b, the box body assembly comprises a wave spring a, a lip seal ring a, an O-shaped seal ring, a box cover, a side end cover, a wave spring b, a lip seal ring c, an upper end cover and a box body, and the output shaft assembly comprises a fastening bolt, a bearing c, an output shaft sleeve, a driven wheel, a bearing d, a fastening nut, a feeding screw and an output shaft.

Preferably, the head end of the input shaft is connected with an external motor through a flexible coupling, the bearing a is in transition fit with the input shaft, the driving wheel is in transition fit with the input shaft through a flat key, the input shaft is in transition fit with the driving wheel, the input shaft sleeve is in transition fit with the input shaft, and the bearing b is in transition fit with the input shaft.

Preferably, the head end of the output shaft is connected with the feeding screw rod through a mechanical buckle, the bearing c is in transition fit with the output shaft, the bearing d is in transition fit with the output shaft, the driven wheel and the output shaft are in transition fit through a flat key, the output shaft sleeve and the output shaft are in transition fit, the fastening bolt and the output shaft are in threaded installation, and the fastening nut and the output shaft are in threaded installation.

The box body is in clearance fit with the wave spring a, the box cover, the side end cover, the wave spring b and the upper end cover, the box body is in interference fit with the lip seal ring a, the lip seal ring b and the lip seal ring c, the O-shaped sealing ring is placed in a groove of the box body, the O-shaped sealing ring is compressed when the box cover is installed, and the box body is connected with the box cover, the side end cover and the upper end cover through bolts.

Compared with the prior art, the utility model has the beneficial effects that the problems that the driving wheel cannot be fixed or the bearing a and the bearing b are damaged due to excessive axial force caused by part machining errors, the input shaft sleeve, the driving wheel, the bearing a and the bearing b generate relative sliding friction and the like are prevented, the problem of movement when the bearing and the gear are dislocated and work is solved by the compression quantity of the wave spring a and the wave spring b, and the sliding problem among the bearing, the shaft sleeve and the gear box body is solved by the fastening bolts and the fastening nuts.

Drawings

FIG. 1 is a schematic diagram of a front view structure of an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of A-A of FIG. 1;

FIG. 3 is a schematic cross-sectional view of B-B of FIG. 1;

FIG. 4 is a schematic cross-sectional view of the structure of C-C in FIG. 1.

In the figure, 1, an input shaft assembly, 2, a box body assembly, 3, an output shaft assembly, 4, an input shaft, 5, an input shaft sleeve, 6, a driving wheel, 7, a bearing a,8, a wave spring a,9, a lip seal ring a,10, a bearing b,11, an O-shaped sealing ring, 12, a box cover, 13, a side end cover, 14, a fastening bolt, 15, a wave spring b,16, a bearing c,17, an output shaft sleeve, 18, a driven wheel, 19, a bearing d,20, a fastening nut, 21, a lip seal ring b,22, a lip seal ring c,23, a feeding screw, 24, an output shaft, 25, an upper end cover, 26 and a box body.

Detailed Description

In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

As shown in fig. 1 to 4, the embodiment of the utility model comprises an input shaft assembly 1, a box body assembly 2 and an output shaft assembly 3, wherein the input shaft assembly 1 comprises an input shaft 4, an input shaft sleeve 5, a driving wheel 6, a bearing a7 and a bearing b10, the box body assembly 2 comprises a wave spring a8, a lip seal ring a9, an O-ring 11, a box cover 12, a side end cover 13, a wave spring b15, a lip seal ring b21, a lip seal ring 22c, an upper end cover 25 and a box body 26, and the output shaft assembly 3 comprises a fastening bolt 14, a bearing c16, an output shaft sleeve 17, a driven wheel 18, a bearing d19, a fastening nut 20, a feeding screw 23 and an output shaft 24.

The input shaft 4 is provided with an input shaft sleeve 5, a driving wheel 6 and a bearing a7 in sequence according to the figure 2, the bearing b10 is arranged on the input shaft 4 and then arranged on the box 26 according to the structural composition description, the contact surface of the box 26 and the bearing b10 is taken as a reference surface a, the flatness of the contact surface is not more than 0.02mm, and the verticality between the axis of the input shaft 4 and the reference surface a is not more than 0.01mm;

The wave spring a8 is arranged on the box cover 12, and when the box cover 12 is arranged, the end face of the bearing a7 is contacted with the wave spring a8 and compressed, so that the input shaft 4, the input shaft sleeve 5, the driving wheel 6, the bearing a7, the bearing b10, the box cover 12 and the box body 26 are tightly matched and locked, and the problems that the driving wheel 6 cannot be fixed or the bearing a7 and the bearing b10 are damaged due to overlarge axial force, the input shaft sleeve 5, the driving wheel 6, the bearing a7 and the bearing b10 generate relative sliding friction and the like due to part machining errors are prevented;

The output shaft 24 is provided with the driven wheel 18 through a flat key, the output shaft sleeve 17 is provided, one end of the output shaft sleeve 17 contacts the driven wheel 18, the other end contacts the bearing c16, the fastening bolt 14 is provided with the end face of the fastening bolt 14 contacting the bearing c16 through a threaded hole of the output shaft 24 but is not contacted with the output shaft 24, the fastening bolt 14, the bearing c16, the output shaft sleeve 17, the driven wheel 18 and the output shaft 24 are integrated through the pretightening force of the fastening bolt 14, the bearing c16, the output shaft sleeve 17, the driven wheel 18 and the output shaft 24, the bearing d19 is in transition fit with the output shaft 24, one end of the bearing d19 contacts the output shaft 24, the other end of the bearing d19 contacts the fastening nut 20, the fastening nut 20 is in external threaded connection with the output shaft 24 to apply pretightening force to the bearing d19, so that the bearing d19, the fastening nut 20 and the output shaft 24 are integrated, no relative sliding occurs in the feeding process, and the head end of the output shaft 24 is connected with the feeding screw 23 through a mechanical buckle, so that the fastening bolt 14, the bearing c16, the output shaft 18, the driven wheel 19, the bearing d, the bearing 20 and the bearing are contacted with the output shaft 20, the output shaft 20 and the driven wheel and the bearing.

When the feeder gear box works, the input shaft 4 generates rotary motion by the acting force provided by the motor, the input shaft 4 drives the driving wheel 6 to generate rotary motion, the driving wheel 6 drives the pinion to generate rotary motion by being meshed with the driven wheel 18, the driven wheel 18 drives the output shaft 24 and then drives the feeding screw 23 to generate rotary motion, so that the feeding purpose is achieved, the problem of movement of the bearings and the gears in dislocation work is solved by the compression quantity of the wave spring a8 and the wave spring b15, and the sliding problem among the bearings, the shaft sleeve and the gear box body is solved by the fastening bolts 14 and the fastening nuts 20.

The motor rotates clockwise, the input shaft 4 and the driving wheel 6 rotate clockwise when seen from the sequence direction of the input shaft 4, the input shaft 5 and the driving wheel 6, the driven wheel 18 and the output shaft 24 are driven to rotate anticlockwise, the feeding screw 23 is driven to rotate anticlockwise, and the material is transported to a straight discharge hole, wherein the fastening bolt 14 is a right-handed thread, the threaded hole of the output shaft 24 is a right-handed thread, the fastening nut 20 is a left-handed thread, the external thread of the output shaft 24 is a left-handed thread, when the output shaft 24 rotates anticlockwise, the fastening bolt 14 and the fastening nut 20 do not easily cause dislocation of a bearing and a gear, relative sliding of the movement during working and the like due to the increase of the pretightening force of parts between inertia pairs.

The better the machining precision of the reference surface a and the input shaft and the output shaft, the more remarkable the effect.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (1)

1. The gearbox structure of the feeder comprises an input shaft assembly, a box body assembly and an output shaft assembly, and is characterized in that the input shaft assembly comprises an input shaft, an input shaft sleeve, a driving wheel, a bearing a and a bearing b, the box body assembly comprises a wave spring a, a lip seal ring a, an O-shaped seal ring, a box cover, a side end cover, a wave spring b, a lip seal ring c, an upper end cover and a box body, and the output shaft assembly comprises a fastening bolt, a bearing c, an output shaft sleeve, a driven wheel, a bearing d, a fastening nut, a feeding screw and an output shaft;

the head end of the input shaft is connected with an external motor through a flexible coupling, the bearing a is in transition fit with the input shaft, the driving wheel is in transition fit with the input shaft through a flat key, the input shaft is in transition fit with the driving wheel, the input shaft sleeve is in transition fit with the input shaft, and the bearing b is in transition fit with the input shaft;

The head end of the output shaft is connected with the feeding screw rod through a mechanical buckle, the bearing c is in transition fit with the output shaft, the bearing d is in transition fit with the output shaft, the driven wheel is in transition fit with the output shaft through a flat key, the output shaft sleeve is in transition fit with the output shaft, the fastening bolt is in threaded fit with the output shaft, and the fastening nut is in threaded fit with the output shaft;

The box body is in clearance fit with the wave spring a, the box cover, the side end cover, the wave spring b and the upper end cover, the box body is in interference fit with the lip seal ring a, the lip seal ring b and the lip seal ring c, the O-shaped seal ring is placed in a groove of the box body, the O-shaped seal ring is compressed when the box cover is installed, and the box body is connected with the box cover, the side end cover and the upper end cover through bolts.