CN217774329U

CN217774329U - Novel paper shredder with gear protection structure

Info

Publication number: CN217774329U
Application number: CN202220886658.7U
Authority: CN
Inventors: 陈钦徽
Original assignee: Comix Business Machine Shenzhen Co ltd
Current assignee: Comix Business Machine Shenzhen Co ltd
Priority date: 2022-04-15
Filing date: 2022-04-15
Publication date: 2022-11-11
Anticipated expiration: 2032-04-15

Abstract

The utility model relates to a novel kneader with gear protection architecture, including motor, drive gear, core driving gear, arbor, axle center ring, reset spring and reset spring lid, the side of axle center ring and core driving gear is equipped with a plurality of shaft coupling teeth, the driving surface of shaft coupling tooth is the inclined plane. The core driving gear is not completely fixed on the cutter shaft any more, but only sleeved on the cutter shaft, the cutter shaft cannot directly drive the core driving gear to rotate, the axis ring can be attached to the side surface of the core driving gear by arranging the reset spring and the reset spring cover, the axis ring and the core driving gear are connected through the coupling teeth on the side surface, when the torque force between the axis ring and the core driving gear is suddenly increased, the inclined surface design of the coupling teeth transmission surface can push the axis ring and the core driving gear away from each other, the power cannot be transmitted again, the core stops working, the occurrence of tooth beating can be greatly reduced or even avoided, the abrasion of gears is greatly reduced, and the service life of the machine is prolonged.

Description

Novel paper shredder with gear protection structure

Technical Field

The utility model relates to a kneader technical field especially relates to a novel kneader with gear protection architecture.

Background

The machine core of the existing paper shredder comprises a machine core driving gear, a machine core driven gear and two cutter shafts, wherein a motor of the paper shredder drives the machine core driving gear to rotate through a transmission gear, the machine core driven gear rotates along with the machine core driven gear, and the machine core driving gear and the machine core driven gear respectively drive the two cutter shafts to rotate, so that the paper shredding work of the machine core is realized.

Because the transmission gear is meshed with the driving gear of the machine core, when excessive paper is suddenly put into the paper shredder or the put paper is too hard, gear beating can occur between the gears, and once the gear is beaten, the loss of the gears is aggravated, thereby shortening the service life of the machine. The strength of the gear depends on the material, module and thickness of the gear, so that a person in the art generally prolongs the service life of the machine by improving the strength of the gear, that is, the requirements on the material and module of the gear are high, the margin is increased, the cost cannot be further reduced, the market competitiveness is weak, and improvement is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel kneader with gear protection architecture can effectively prevent the gear from beating the emergence of tooth phenomenon.

The utility model discloses a realize like this: the utility model provides a novel kneader with gear protection structure, includes motor, drive gear, core driving gear, arbor, axle ring, reset spring and reset spring lid, the motor is used for driving drive gear rotatory, core driving gear cover is established on the arbor, drive gear and core driving gear meshing, axle ring endwise slip ground cover is established on the arbor to follow the arbor and rotate together, the side of axle ring is equipped with a plurality of shaft coupling teeth, core driving gear side correspondence is equipped with a plurality of shaft coupling teeth, the driving surface of the shaft coupling tooth on axle ring and the core driving gear is the inclined plane, the fixed one end that sets up at the arbor of reset spring lid, reset spring overlaps and establishes on the arbor, one end and reset spring lid side butt, the other end and the side butt of axle ring, reset spring is used for compressing tightly the axle ring in the side of core driving gear to make the meshing of the shaft coupling tooth on axle ring and the core driving gear.

The number of the coupling teeth on the side surfaces of the axle center ring and the driving gear of the movement is three.

Wherein, the inclination of the transmission surface of the coupling teeth is 60-80 degrees.

Wherein, the inclination of the transmission surface of the positive and negative rotation of the coupling gear is the same.

The section of the matched part of the cutter shaft and the shaft center ring is D-shaped, and the central shaft hole of the shaft center ring is also D-shaped.

The reset spring cover is arranged at the shaft end of the cutter shaft through threaded connection.

The cutter shaft is provided with a nut at the shaft end, the return spring cover is arranged on the cutter shaft in a sliding mode, and the position of the return spring cover on the cutter shaft is adjusted by adjusting the position of the nut.

And a bearing is arranged between the cutter shaft and the machine core driving gear.

The utility model has the advantages that: the novel paper shredder is additionally provided with a gear protection structure, a machine core driving gear is not completely fixed on a cutter shaft any more and is only sleeved on the cutter shaft, the cutter shaft cannot directly drive the machine core driving gear to rotate, the reset spring and the reset spring cover are arranged, an axis ring can be tightly attached to the side surface of the machine core driving gear, the axis ring and the machine core driving gear are connected through a coupling gear on the side surface, and a transmission surface of the coupling gear is designed into an inclined surface. When excessive paper is taken out, when the torsion between the axle center ring and the machine core driving gear is recovered to be normal, under the pressure action of the reset spring, the side surfaces of the axle center ring and the machine core driving gear are tightly attached again, the coupling teeth on the side surfaces are meshed again, and the machine is recovered to work normally. Due to the fact that the gear protection structure is arranged, abnormal loss of the gear is greatly reduced, selection on motor torque force, selection on gear materials and modules and design can be diversified, cost is reduced, quality is improved, and competitiveness of the machine on the market is improved.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the novel paper shredder of the present invention;

fig. 2 is an exploded view of the embodiment of the shredder of the present invention;

fig. 3 is a matching relationship diagram of the driving gear of the movement, the axle ring, the return spring and the return spring cover of the present invention;

fig. 4 is a schematic view of the matching relationship between the driving gear and the axial ring of the movement of the present invention.

1. A motor; 2. a transmission gear; 3. a machine core driving gear; 31. coupling teeth; 4. a cutter shaft; 5. a hub ring; 51. a coupling gear; 6. a return spring; 7. and a return spring cover.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As the embodiment of novel kneader with gear protection structure, as shown in fig. 1 to 4, including motor 1, drive gear 2, core driving gear 3, arbor 4, axle ring 5, reset spring 6 and reset spring lid 6, motor 1 is used for driving drive gear 2 rotatory, core driving gear 3 cover is established on arbor 4, drive gear 2 and core driving gear 3 meshing, 5 axial slip ground cover of axle ring is established on arbor 4 to follow arbor 4 and rotate together, the side of axle ring 5 is equipped with a plurality of shaft coupling teeth 51, the correspondence of core driving gear 3 side is equipped with a plurality of shaft coupling teeth 31, the driving surface of

shaft coupling teeth

51, 31 on axle ring 5 and the core driving gear 3 is the inclined plane, the fixed one end that sets up at arbor 4 of reset spring lid 7, the cover of reset spring 6 is established on arbor 4, one end and reset spring lid 7 side butt, the other end and the side butt of axle ring 5, reset spring 6 is used for compressing tightly the side of core driving gear 5 to make epaxial core ring 5 and core driving gear 51, the shaft coupling teeth 31 meshing on axle ring 3.

The novel paper shredder is additionally provided with a gear protection structure, the machine core driving gear 3 is not completely fixed on the cutter shaft 4 any more, only the machine core driving gear 3 is sleeved on the cutter shaft 4, the cutter shaft 4 cannot directly drive the machine core driving gear 3 to rotate, the axle center ring 5 can be tightly attached to the side surface of the machine core driving gear 3 by arranging the reset spring 6 and the reset spring cover 7, the axle center ring 5 and the machine core driving gear 3 are connected through the

coupling teeth

51 and 31 on the side surface, the transmission surfaces of the

coupling teeth

51 and 31 are designed into inclined surfaces, when excessive paper is suddenly put into the paper shredder or the put-in paper is too hard, the motor 1 can still drive the transmission gear 2 and the machine core driving gear 3 to rotate in sequence due to larger torsion, but the machine core driving gear 3 cannot directly drive the axle center ring 4 to rotate, power is transmitted to the axle center ring 5 through the

coupling teeth

51 and 31 on the side surface of the cutter shaft, the axle center ring 5 drives the cutter shaft 4 to rotate again, when the torsion between the axle center ring 5 and the driving gear 3 is suddenly increased, the torsion of the inclined surfaces of the axle center ring 51 and the driving gear 3 can not transmit power again, the machine core ring 5 and the machine core can be adjusted, the pressure of the transmission between the machine core driving gear 5 and the machine core driving gear 3 can be greatly reduced, the service life of the machine core driving gear can be effectively reduced, and the machine core driving gear 3 can be effectively reduced, and the service life of the machine core driving gear 3 can be prolonged. When the excessive paper is taken out (the resistance of the machine core is reduced through artificial reasons, so that the resistance on the machine core is smaller than a set value), when the torsion between the axle center ring 5 and the driving gear 3 of the machine core returns to be normal, under the pressure action of the return spring 6, the side surfaces of the axle center ring 5 and the driving gear 3 of the machine core are attached tightly again, the

coupling teeth

51 and 31 on the side surfaces are meshed again, and the machine returns to normal operation. Due to the arrangement of the gear protection structure, abnormal loss of the gear is greatly reduced, selection on the torque force of the motor 1, selection on the material and the module of the gear and design can be diversified, the cost is reduced, the quality is improved, and the competitiveness of the machine in the market is improved.

In this embodiment, the number of the

coupling teeth

51 and 31 on the side surfaces of the spindle ring 5 and the movement drive gear 3 is three, and the

coupling teeth

51 and 31 are distributed at equal angles, so that the tooth thickness is large, the strength is high, and the wear resistance is high.

In the present embodiment, the inclination of the transmission surface of the

coupling teeth

51, 31 is preferably 60-80 °, and the adjustment and control of the maximum torque force are easier; the inclination of the transmission surfaces of the

coupling teeth

51 and 31 rotating forward and backward is the same, and certainly, the inclination can be different, and the transmission surfaces are combined according to the design purpose.

In this embodiment, the section of the matching part of the arbor 4 and the arbor ring 5 is D-shaped, and the central axle hole of the arbor ring 5 is also D-shaped, so that the rotation of the arbor 4 and the arbor ring 5 is completely synchronous. Of course, other cross-sectional shapes may be used as long as they are not circular in theory.

In this embodiment, a nut is disposed at an axial end of the cutter shaft 4, the return spring cover 7 is slidably disposed on the cutter shaft 4, and the position of the return spring cover 7 on the cutter shaft 4 is adjusted by adjusting the position of the nut, so as to adjust the preset lateral pressure of the return spring 6. Of course, it is also possible that the return spring cover is arranged at the shaft end of the cutter shaft by a threaded connection.

In this embodiment, a bearing is further disposed between the arbor 4 and the movement driving gear 3, so that the movement driving gear 3 can rotate on the arbor 4 more smoothly.

The utility model discloses in, can make this gear protection device the modularization for on any section kneader product, promote the quality, improve market competition.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of the present invention.

Claims

1. The utility model provides a novel kneader with gear protection structure, its characterized in that, includes motor, drive gear, core driving gear, arbor, axle ring, reset spring and reset spring lid, the motor is used for driving drive gear rotatory, core driving gear cover is established on the arbor, drive gear and the meshing of core driving gear, axle ring endwise slip ground cover is established on the arbor to follow the arbor and rotate together, the side of axle ring is equipped with a plurality of shaft coupling teeth, the correspondence of core driving gear side is equipped with a plurality of shaft coupling teeth, the driving face of the shaft coupling teeth on axle ring and the core driving gear is the inclined plane, the fixed one end that sets up at the arbor of reset spring lid, reset spring overlaps and establishes on the arbor, one end and reset spring lid side butt, the other end and the side butt of axle ring, reset spring is used for compressing tightly the axle ring in the side of core driving gear to make the meshing of the shaft coupling teeth on axle ring and the core driving gear.

2. The new paper shredder with gear protection architecture as claimed in claim 1, wherein the number of the coupling teeth on the side of the axle ring and the core driving gear is three.

3. The new shredder with gear protection structure as in claim 1, wherein the transmission face of the coupling gear has a pitch of 60-80 °.

4. The new paper shredder with gear protection structure as claimed in claim 3, wherein the transmission surfaces of the coupling gear rotating forward and backward have the same inclination.

5. The paper shredder with gear protection structure as claimed in claim 1, wherein the section of the matching part of the cutter shaft and the shaft center ring is D-shaped, and the central shaft hole of the shaft center ring is also D-shaped.

6. The novel paper shredder with the gear protection structure as claimed in claim 1, wherein the reset spring cover is disposed at the shaft end of the cutter shaft through a threaded connection.

7. The paper shredder with the gear protection structure as claimed in claim 1, wherein the shaft end of the cutter shaft is provided with a nut, the reset spring cover is slidably arranged on the cutter shaft, and the position of the reset spring cover on the cutter shaft is adjusted by adjusting the position of the nut.

8. The new paper shredder with gear protection structure as claimed in claim 1, wherein a bearing is further provided between the knife shaft and the driving gear of the movement.