CN209385602U - Image-forming assembly developing gear - Google Patents

Abstract

The utility model discloses image-forming assembly developing gear, it include gear, the gear includes inner ring and outer ring, and the inner ring is arranged inside outer ring, and the inner ring extends to outside outer ring to both ends, described inner ring one end is provided with through-hole, and the through-hole extends on the outside of the inner ring other end, it is intermediate on the outside of the inner ring to be provided with connection ring, the inner ring is connected by connection ring with outer ring, the connection ring both ends are provided with supporting beam, and the supporting beam is separately connected inner ring and outer rings, the outer ring exterior annular is provided with commutating tooth, the utility model structure is simple, have the effect of reducing abrasion, effectively improve the service life of the utility model, it reduces the cost, setting commutating tooth can reduce rack gear frictional force, to reduce gear wear, cooperate between gear even closer, keep gear cooperation more efficient, from And working efficiency is improved, the hardness of inner ring can be improved in the support column being arranged on the outside of inner ring.

Description

Image-forming assembly developing gear

Technical field

The utility model relates to the technical fields of electronic equipment, especially setting image-forming assembly developing gear.

Background technique

Gear is a kind of element that can continuously engage passing movement and power, is used in manufacturing field very extensively, Have many advantages, such as that transmission efficiency is high, the plastic gear on existing market is mainly made of circular gear body, the gear teeth, due to knot Structure is fairly simple, and in the case where gear and axis are interference fitted, the amount of heat that high speed rotary grinding generates will lead to gear hair Raw deformation influences the precision and service life of gear, and helical gear manufacture is more troublesome, and gear can generate axial thrust load when engaging, And axial force is as caused by helical angle, helical angle is bigger, and generated axial force is bigger, and axial thrust load is for gear drive Harmful, it increases the frictional force between device, and device is made to be prone to wear out or damage.

Utility model content

The utility model is directed to above-mentioned problem, provides image-forming assembly developing gear.

It is the gear sheet the technical solution of the utility model includes: image-forming assembly developing gear, includes gear below Body includes inner ring and outer ring, and the inner ring is arranged inside outer ring, and the inner ring extends to outside outer ring to both ends, institute It states inner ring one end and is provided with through-hole, and the through-hole extends on the outside of the inner ring other end, the intermediate company of being provided on the outside of the inner ring Ring is connect, the inner ring is connected by connection ring with outer ring, and the connection ring both ends are provided with supporting beam, and the supporting beam point Not Lian Jie inner ring and outer rings, the outer ring exterior annular is provided with commutating tooth, gap mouthful is equipped between the commutating tooth.

Preferably, the gear is using made of integrated molding.

Preferably, commutating tooth section lower shape is rectangle, and shaped upper part is trapezoidal.

Preferably, the gap mouthful is corresponding with commutating tooth uper side surface.

Preferably, the inner ring exterior annular is provided with support column, and the support column is arranged in connection ring one end.

It compared with prior art, is the utility model has the beneficial effects that the utility model structure is simple, has and reduces below The effect of abrasion effectively improves the service life of the utility model, reduces the cost, and setting commutating tooth can reduce rack gear frictional force, To reducing gear wear, cooperate even closer between gear, keeps gear cooperation more efficient, so that working efficiency is improved, and And setting supporting beam improves gear intensity, the hardness of inner ring can be improved in the support column being arranged on the outside of inner ring, makes gear Ontology, which is plugged on the bodies of rod such as axis, to be not easy to burst.

Detailed description of the invention

Fig. 1 is the utility model perspective view.

Fig. 2 is the utility model front view.

Fig. 3 is the utility model side view.

In conjunction with shown in Fig. 1 to Fig. 3: gear 1, inner ring 2, outer ring 3, commutating tooth 4, connection ring 5, through-hole 20, support column 21, Gap mouthful 41, supporting beam 55.

Specific embodiment

It is described in detail below with reference to Fig. 1 to Fig. 3 for the utility model, image-forming assembly developing gear, including with teeth Ontology 1 is taken turns, the gear 1 includes inner ring 2 and outer ring 3, and the inner ring 2 is arranged inside outer ring 3, and the inner ring 2 extend to outside outer ring 3 to both ends, and described 2 one end of inner ring is provided with through-hole 20, and to extend to inner ring 2 another for the through-hole 20 End outside, 2 outside of inner ring is intermediate to be provided with connection ring 5, and the inner ring 2 is connected by connection ring 5 and outer ring 3, the company It connects 5 both ends of ring and is provided with supporting beam 55, and the supporting beam 55 is separately connected inner ring and outer rings 3,3 exterior annular of outer ring It is provided with commutating tooth 4, is equipped with gap mouthful 41 between the commutating tooth 4.

The gear 1, by integrally formed manufacture technology, effectively improves this using made of integrated molding The intensity of utility model, and it is convenient for bulk production.

The 4 section lower shape of commutating tooth is rectangle, and shaped upper part is trapezoidal, and commutating tooth 4 in this way replaces tradition Rack gear, makes to cooperate between rack gear even closer, effectively improves the cooperation of gear, improves working efficiency.

The gap mouthful 41 and 4 uper side surface of commutating tooth are corresponding, 4 upper surface of shape area size and commutating tooth in gap mouthful 41 Shape area size it is the same, be close to the cooperation between gears and gears more, reduce frictional force, reduce gear wear.

The inner ring exterior annular is provided with support column 21, and the setting of the support column 21 is in 5 one end of connection ring, by Support column 21 is set outside inner ring 2, and support column 21 extends to inside inner ring 2, and inner ring intensity can be improved, and makes on inner ring 2 Through-hole 20, which is plugged on, to be not easy to burst on cylinder.

The utility model structure is simple, has the effect of reducing abrasion, effectively improves the service life of the utility model, subtracts Low cost, setting commutating tooth 4 can reduce rack gear frictional force, to reduce gear wear, cooperate even closer between gear, make tooth Wheel cooperation is more efficient, so that working efficiency is improved, and supporting beam 55, which is arranged, improves 1 intensity of gear, 2 outside of inner ring The hardness of inner ring 2 can be improved in the support column 21 of setting, is plugged into gear 1 on the bodies of rod such as axis and is not easy to burst.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replace and deform, the scope of the utility model is limited by appended claims extremely equivalent.

Claims (5)

1. image-forming assembly developing gear includes gear (1), which is characterized in that the gear (1) includes inner ring (2) and outer ring (3), and the inner ring (2) setting is internal in outer ring (3), and the inner ring (2) extends to outer ring (3) to both ends Outside, described inner ring (2) one end are provided with through-hole (20), and the through-hole (20) extends on the outside of inner ring (2) other end, described Intermediate on the outside of inner ring (2) to be provided with connection ring (5), the inner ring (2) is connected by connection ring (5) and outer ring (3), the connection Ring (5) both ends are provided with supporting beam (55), and the supporting beam (55) is separately connected inner ring and outer rings (3), the outer ring (3) Exterior annular is provided with commutating tooth (4), and gap mouthful (41) is equipped between the commutating tooth (4).

2. image-forming assembly developing gear according to claim 1, it is characterised in that: the gear (1) using Made of integrated molding.

3. image-forming assembly developing gear according to claim 1, it is characterised in that: commutating tooth (4) section lower shape It is rectangle, shaped upper part is trapezoidal.

4. image-forming assembly developing gear according to claim 1, it is characterised in that: the gap mouthful (41) and commutating tooth (4) Uper side surface is corresponding.

5. image-forming assembly developing gear according to claim 1, it is characterised in that: the inner ring exterior annular is provided with branch Dagger (21), and the support column (21) is arranged in connection ring (5) one end.