CN214946124U

CN214946124U - Double-bearing output shaft structure

Info

Publication number: CN214946124U
Application number: CN202120656156.0U
Authority: CN
Inventors: 王培忠
Original assignee: Fujian Xingyi Machinery Co ltd
Current assignee: Fujian Xingyi Intelligent Equipment Co ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2021-11-30
Anticipated expiration: 2031-03-31

Abstract

The utility model relates to a duplex bearing output shaft structure, including box and case lid, the case lid center rotates and is connected with the transmission shaft that links to each other with the input shaft, be provided with input gear on the transmission shaft in the box and through its transition gear engagement on with the transition shaft, connect transition gear through first one-way bearing on the transition shaft, be equipped with in the gear box and rotate rather than connect and the lower extreme is used for installing the output shaft of bistrique, be equipped with the output gear who meshes with transition gear on the output shaft, the case lid top sets firmly first fixed gear and the second fixed gear that set up with the transmission shaft is coaxial, the output shaft upper end is worn out the case lid and all is connected the reverse gear of output through second one-way bearing, this reverse gear of output meshes with first fixed gear, the reverse transition shaft upper end is installed the reverse transition gear who meshes with the second fixed gear; the surface of the box cover is provided with an oil filling port, and an oiling mechanism is inserted into the oil filling port, so that the normal and reverse rotation of the grinding disc can be realized, and the gear box can be ensured to keep unidirectional revolution.

Description

Double-bearing output shaft structure

Technical Field

The utility model relates to a grind the machine field, be a duplex bearing output shaft structure.

Background

The terrace grinder is mainly used for grinding the ground, and can effectively grind terrazzo, a concrete surface layer, an epoxy mortar layer, an old epoxy ground and the like. The device has the characteristics of portability, flexibility, high working efficiency and the like. The existing grinding machine gear box realizes the forward and reverse rotation of a grinding disc through the forward and reverse rotation of a motor, but the gear box can also be switched between the forward and reverse rotation, and the gear box has the advantages of large volume, heavy weight, large inertia, overload work of the motor caused by the frequent forward and reverse rotation of the gear box and shortened service life of the motor.

SUMMERY OF THE UTILITY MODEL

In view of the not enough of prior art, the utility model aims to solve the technical problem that a duplex bearing output shaft structure is provided, not only stable in structure is reasonable, can guarantee moreover that the gear box remains one-way revolution throughout.

In order to solve the technical problem, the technical scheme of the utility model is that: the double-bearing output shaft structure comprises a gear box, wherein the gear box comprises a box body and a box cover, the center of the box cover is rotatably connected with a transmission shaft connected with an input shaft, the transmission shaft positioned in the box body is provided with an input gear and is meshed with a transition gear on the transition shaft through the input gear, the transition shaft is connected with the transition gear through a first one-way bearing, the transition shaft is arranged at the periphery of the input gear at intervals and is rotatably connected with the gear box, an output shaft which is rotatably connected with the gear box and the lower end of which is used for installing a grinding head is arranged in the gear box, the output shaft is provided with an output gear meshed with the transition gear, a first fixed gear and a second fixed gear which are coaxially arranged with the transmission shaft are fixedly arranged above the box cover, the upper end of the output shaft penetrates through the box cover and are connected with an output reverse gear through a second one-way bearing, and the rotation directions of the second one-way bearing and the first one-way bearing are the same, the output reverse gear is meshed with the first fixed gear, and the upper end of the transition shaft penetrates through the box cover and is provided with a reverse transition gear meshed with the second fixed gear; the surface of the box cover is provided with an oil filling port, and an oiling mechanism is inserted into the oil filling port.

Furthermore, the first fixed gear is coaxially arranged above the second fixed gear, and the diameter of the end face of the first fixed gear is larger than that of the end face of the second fixed gear.

Further, the mechanism of oiling includes last oil shaft, glib talker, seal ring and outer hexagonal plug screw, go up the interior vertical shoulder hole of offering the outer hexagonal plug screw of confession and inserting the joint that runs through of oil shaft, the vertical through-hole of offering the interference joint of confession glib talker plug screw that runs through in outer hexagonal plug screw center, glib talker are located the shoulder hole, seal ring cover establishes outer hexagonal plug screw periphery.

Compared with the prior art, the utility model discloses following beneficial effect has: this duplex bearing output shaft simple structure is stable, and reasonable in design can realize abrasive disc normal, reverse rotation promptly, can guarantee again that the gear box remains one-way revolution throughout, guarantees the comparatively steady work of motor, prolongs its life, is convenient for oil simultaneously.

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a top view of the embodiment of the present invention with the cover removed;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

fig. 4 is an exploded view of an embodiment of the present invention;

fig. 5 is an internal schematic view of the oiling mechanism in the embodiment of the present invention.

In the figure: 1-gear box, 2-box, 3-box cover, 4-input shaft, 5-transmission shaft, 6-input gear, 7-transition shaft, 8-transition gear, 9-first one-way bearing, 11-output shaft, 12-output gear, 13-first fixed gear, 14-second fixed gear, 15-second one-way bearing, 16-output reverse gear, 17-reverse transition gear, 18-oil filling port, 19-oil filling mechanism, 20-flange plate, 21-oil filling shaft, 22-oil nozzle, 23-sealing washer, 24-outer hexagonal plug, 25-stepped hole and 26-through hole.

Detailed Description

In order to make the aforementioned and other features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

As shown in fig. 1 to 5, the dual-bearing output shaft structure comprises a gear box 1, the gear box comprises a box body 2 and a box cover 3, the center of the box cover is rotatably connected with a transmission shaft 5 connected with an input shaft 4, the transmission shaft in the box body is provided with an input gear 6 and meshed with a transition gear 8 on a transition shaft 7 through the input gear, the input shaft gear is in key connection with the transmission shaft, the transition shaft is connected with the transition gear through a first one-way bearing 9, the transition shaft is arranged at the periphery of the input gear at intervals and is rotatably connected with the gear box, an output shaft 11 which is rotatably connected with the gear box and is used for mounting a grinding head at the lower end is vertically arranged in the gear box, the output shaft is provided with an output gear 12 meshed with the transition gear, the output gear is in key connection with the output shaft, a first fixed gear 13 and a second fixed gear 14 which are coaxially arranged with the transmission shaft are fixedly arranged above the box cover, the upper end of the output shaft penetrates through the box cover and is connected with an output reverse gear 16 through a second one-way bearing 15, the rotation directions of the second one-way bearing and the first one-way bearing are the same, the output reverse gear is meshed with the first fixed gear, and the upper end of the transition shaft penetrates through the box cover and is partially provided with a reverse transition gear 17 meshed with the second fixed gear; the surface of the box cover is provided with an oil filling port 18, and an oil filling mechanism 19 is inserted into the oil filling port.

The embodiment of the utility model provides an in, the coaxial setting of first fixed gear is in second fixed gear top, and first fixed gear end diameter is greater than second fixed gear end diameter, first fixed gear all links firmly on ring flange 20 with second fixed gear, guarantees that it is stable motionless to drive gear box revolution.

The utility model discloses transmission principle: firstly, an input shaft connected with a motor is inserted into a transmission shaft, the motor drives the transmission shaft to rotate, an input gear on the transmission shaft drives a transition gear to rotate, the transition gear drives an output gear on an output shaft to rotate so as to drive a grinding head below the output shaft to rotate, and the lower end of the output shaft penetrates through a box body to be used for installing the grinding head; the output shaft drives the second one-way bearing to rotate through key connection, the second one-way bearing enables the output reverse gear to rotate through key connection, and the output reverse gear rotates around the first fixed gear to drive the gear box to revolve;

the gearbox has two rotation modes, one is that the output shaft drives the output reverse gear through the second one-way bearing, at the moment, the transition gear cannot drive the transition shaft to rotate, and then the output reverse gear rotates around the first fixed gear; secondly, the transition shaft drives the transition shaft to rotate through the first one-way bearing so as to drive the reverse transition gear to rotate (at the moment, the output shaft cannot drive the output reverse gear to rotate), and the reverse transition gear rotates around the second fixed gear; therefore, the gear box can keep always rotating in one direction no matter the motor drives the output shaft to rotate forwards or reversely. The bidirectional adjustable one-way gear box of the grinding disc can realize bidirectional adjustment of the grinding disc through forward and backward rotation of the motor, and can ensure that the gear box always keeps unidirectional revolution, so that the motor can work stably and the service life of the motor is prolonged.

The embodiment of the utility model provides an in, the mechanism of oiling includes last oil shaft 21, glib 22, seal ring 23 and outer hexagonal plug 24, go up the vertical shoulder hole 25 of seting up the outer hexagonal plug of confession and inserting the joint that runs through in the oil shaft, the vertical through-hole 26 of seting up the interference joint of confession oil nozzle that runs through in outer hexagonal plug center, glib are located the shoulder hole, seal ring cover establishes outer hexagonal plug periphery, and this mechanism of oiling also can be as exhaust mechanism simultaneously, and after gear box operation a period, the internal pressure increases, and some inside pressures of discharge of this mechanism of accessible make the gear box about the cavity keep pressure balance.

The present invention is not limited to the above preferred embodiments, and any one can obtain other various forms of dual bearing output shaft structures according to the teaching of the present invention. All the equivalent changes and modifications made according to the claims of the present invention shall fall within the scope of the present invention.

Claims

1. Duplex bearing output shaft structure, including the gear box, its characterized in that: the gearbox comprises a box body and a box cover, wherein the center of the box cover is rotationally connected with a transmission shaft connected with an input shaft, the transmission shaft positioned in the box body is provided with an input gear and meshed with a transition gear on the transition shaft through the input gear, the transition shaft is connected with the transition gear through a first one-way bearing, the transition shaft is arranged at the periphery of the input gear at intervals and rotationally connected with the gearbox, the gearbox is internally provided with an output shaft which is rotationally connected with the gearbox and the lower end of which is used for installing a grinding head, the output shaft is provided with an output gear meshed with the transition gear, a first fixed gear and a second fixed gear which are coaxially arranged with the transmission shaft are fixedly arranged above the box cover, the upper end of the output shaft penetrates through the box cover and is connected with an output reverse gear through a second one-way bearing, the rotation directions of the second one-way bearing and the first one-way bearing are the same, and the output reverse gear is meshed with the first fixed gear, the upper end of the transition shaft penetrates through the box cover and is provided with a reverse transition gear meshed with the second fixed gear; the surface of the box cover is provided with an oil filling port, and an oiling mechanism is inserted into the oil filling port.

2. The dual bearing output shaft structure of claim 1, wherein: the first fixed gear is coaxially arranged above the second fixed gear, and the diameter of the end face of the first fixed gear is larger than that of the end face of the second fixed gear.

3. The dual bearing output shaft structure of claim 1, wherein: the mechanism of oiling includes last oil shaft, glib, seal ring and outer hexagonal plug screw, go up the interior vertical shoulder hole of offering the outer hexagonal plug screw of confession and inserting the joint that runs through of oil shaft, the vertical through-hole of offering oil feed nozzle interference joint that runs through in outer hexagonal plug screw center, glib is located the shoulder hole, seal ring cover is established at outer hexagonal plug screw periphery.