CN2876448Y

CN2876448Y - Transmission gear wheel component element for office equipment

Info

Publication number: CN2876448Y
Application number: CN 200620054774
Authority: CN
Inventors: 丁飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-01-27
Filing date: 2006-01-27
Publication date: 2007-03-07
Anticipated expiration: 2016-01-27

Abstract

A transmission gear set used for the office devices includes two pieces of the same gears (10) and a hexangular shaft (20) which is slide matched with the central part of the said gear (10); especially, a tooth peak (12) and a tooth indent (13) are evenly and interlacedly distributed on the outer circumference of the said gear (10); a hexagonal fixed hole (11) is provided at the central part of the said gear (10); the said gear (10) and the fixed hole (11) have a same geometrical center (14); and the connecting line between the peak of the sharp angle of the said fixed hole (11) and the said geometrical center (14) on a same gear (10), has a 7.5degreesangle with the connecting line between the peak of the tooth peak (12) pointed by the sharp angle and the said geometrical center (14); one piece of the two same gears (10) is first overturned and then jointed to the other gear piece, so as to make the hexagonal fixed holes (11) of two pieces of the gears completely overlapped, thus making the tooth peak (12) and the tooth indent (13) of the two pieces of the gears are respectively arranged at the position of the tooth indent (13) and the tooth peak (12) of the other gear; the hexangular shaft (20) is inserted into the said hexagonal fixed holes (11) along the radial direction. Compared with the prior art, the technical effect of the said gear set used for the office devices lies in that: the structure is simple; the cost is low; the invention is easy to manufacture and can effectively reduce the abnormal noise.

Description

The driving gear component that is used for office equipment

Technical field the utility model relates to the metal parts made from process for stamping, relates in particular to the built-up gear assembly that is used for the office equipment transferring power.

The background technique prior art, as shown in Figure 1, the driving gear component that is used for office equipment, when the gear thickness that adopts blocked up, when the inconvenient impact briquetting and the manufacturing, then adopt uses that be superimposed together of two or the identical thin gear of multi-disc more, but have phenomenons such as noise and abnormal sound under the bad situation of this fit system cooperation between two or multi-disc gear, influence people's proper functioning.

The summary of the invention the technical problems to be solved in the utility model is to avoid above-mentioned the deficiencies in the prior art part and a kind of with low cost, driving gear component that is used for office equipment of being convenient to make, can effectively reduce abnormal sound is provided.

The utility model solves the problems of the technologies described above the technological scheme that is adopted, and manufactures and designs a kind of driving gear component that is used for office equipment, comprises two identical gears and the hexagonal axis that is slidingly tied in described Gear center position, especially,

On the excircle of described gear, be distributed with tooth peak and tooth paddy evenly, alternately, and described tooth peak and tooth paddy are 12; In the center portion of described gear the regular hexagon fixed hole is arranged, described gear has identical geometrical center with this regular hexagon fixed hole, and, and between the line of summit with described geometrical center at this wedge angle indication tooth peak 7.5 ° of angles are arranged at the wedge angle summit of the above regular hexagon fixed hole of same plate gear and the line of described geometrical center;

Described two identical gears are wherein fitted with another plate gear after a slice upset in opposite directions, the regular hexagon fixed hole of two plate gears is overlapped fully, thereby make the tooth peak of two plate gears and tooth paddy and the tooth peak position that tooth paddy lays respectively at the other side, hexagonal axis radially inserts in the described regular hexagon fixed hole, so the adjacent two tooth peaks of two gears that fit or the angle between the adjacent two tooth paddy are 15 °.

Compare with prior art, the technique effect that the utility model is used for the driving gear component of office equipment is: simple in structure, with low cost, be convenient to make, and but can effectively reduce abnormal sound.

Description of drawings Fig. 1 is the structural representation that prior art is used for the driving gear component of office equipment;

Fig. 2 is the floor map of the gear 10 of the utility model driving gear component of being used for office equipment;

Fig. 3 is the schematic representation after described the utility model driving gear component two plate gears assembling;

Fig. 4 is the axonometric projection schematic representation of described driving gear component structure;

Fig. 5 is the axonometric projection schematic representation that the utility model is used for the driving gear component assembling back partial structurtes of office equipment.

The utility model is described in further detail below in conjunction with the most preferred embodiment shown in the accompanying drawing for embodiment:

The utility model is used for the driving gear component of office equipment, comprises two identical gears 10 and the hexagonal axis 20 that is slidingly tied in described gear 10 center portions, especially,

As shown in Figure 2, on the excircle of described gear 10, be distributed with tooth peak 12 and tooth paddy 13 evenly, alternately, and described tooth peak 12 and tooth paddy 13 are 12; In the center portion of described gear 10 regular hexagon fixed hole 11 is arranged, described gear 10 has identical geometrical center 14 with this regular hexagon fixed hole 11, and, and between the line of summit with described geometrical center 14 at this wedge angle indication tooth peak 12 7.5 ° of angles are arranged at the wedge angle summit of same plate gear 10 the above regular hexagon fixed hole 11 and the line of described geometrical center 14;

As shown in Figure 3 and Figure 4, described two identical gears 10 are wherein fitted with another plate gear after a slice upset in opposite directions, the regular hexagon fixed hole 11 of two plate gears is overlapped fully, thereby make the tooth peak 12 of two plate gears and

tooth paddy

13 and 12 positions, tooth peak that tooth paddy 13 lays respectively at the other side, hexagonal axis 20 radially inserts in the described regular hexagon fixed hole 11, so the two adjacent teeth peak of two gears that fit or the angle between the adjacent teeth paddy are 15 °.

As shown in Figure 2, the transverse section of described hexagonal axis 20 is that the length of side equates or smaller regular hexagon with the length of side of regular hexagon fixed hole 11, described gear 10 is metal materials, and each wedge angle summit of described regular hexagon fixed hole 11 all is processed as the fillet that radian is arranged slightly.

As shown in Figure 5, most preferred embodiment of the present utility model, the described driving gear component that is used for office equipment are to use in pairs.

Claims

1. driving gear component that is used for office equipment comprises two identical gears (10) and is slidingly tied in the hexagonal axis (20) in described gear (10) center portion, it is characterized in that:

On the excircle of described gear (10), be distributed with tooth peak (12) and tooth paddy (13) evenly, alternately, and described tooth peak (12) and tooth paddy (13) are 12; In the center portion of described gear (10) regular hexagon fixed hole (11) is arranged, described gear (10) has identical geometrical center (14) with this regular hexagon fixed hole (11), and, and between the line of summit with described geometrical center (14) at this wedge angle indication tooth peak (12) 7.5 ° of angles are arranged at the wedge angle summit of the above regular hexagon fixed hole (11) of same plate gear (10) and the line of described geometrical center (14);

Described two identical gears (10) are wherein fitted with another plate gear after a slice upset in opposite directions, the regular hexagon fixed hole (11) of two plate gears is overlapped fully, thereby make the tooth peak (12) of two plate gears and tooth paddy (13) and the position, tooth peak (12) that tooth paddy (13) lays respectively at the other side, hexagonal axis (20) radially inserts in the described regular hexagon fixed hole (11), so the adjacent two tooth peaks of two gears that fit or the angle between the adjacent two tooth paddy are 15 °.

2. the driving gear component that is used for office equipment as claimed in claim 1 is characterized in that:

The transverse section of described hexagonal axis (20) is that the length of side equates or smaller regular hexagon with the length of side of regular hexagon fixed hole (11).

3. the driving gear component that is used for office equipment as claimed in claim 1 is characterized in that:

Described gear (10) is a metal material.

4. the driving gear component that is used for office equipment as claimed in claim 1 is characterized in that:

Each wedge angle summit of described regular hexagon fixed hole (11) all is processed as the fillet that radian is arranged slightly.