CN202690959U

CN202690959U - Modified cylindrical gear

Info

Publication number: CN202690959U
Application number: CN 201220372604
Authority: CN
Inventors: 张龙弟
Original assignee: ZHEJIANG LONGLI MACHINERY CO Ltd
Current assignee: ZHEJIANG LONGLI MACHINERY CO Ltd
Priority date: 2012-07-30
Filing date: 2012-07-30
Publication date: 2013-01-23
Anticipated expiration: 2022-07-30

Abstract

The utility model discloses a modified cylindrical gear, wherein the periphery of the gear is uniformly distributed with gear teeth, the thickness of the gear teeth is 17-18.5mm, and the depth of tooth spaces between the gear teeth is 29-33mm. According to the utility model, the modified cylindrical gear used for regulating up-down positions of a die of a semicircular calendar is designed; on the modified gear, the outer diameter of the gear is changed through designing, the tooth depth of the gear is increased, and the modified gear is arranged at one ends of an upper roll shaft and lower roll shaft on the semicircular calendar; the lifting distance of the upper roll shaft on the semicircular calendar is regulated to be 5mm, and the gear clearance change of the modified cylindrical gear is smaller than 1.5mm; and the tooth depth of the gear is changed through designing, so that the occlusion length in a working process is increased, and the service life of the gear is improved.

Description

Cylindrical Gear

Technical field

The utility model relates to a kind of gear, particularly a kind of Cylindrical Gear.

Background technique

Existing semicircle rolls the gear drive that prolongs machine and adopts the GB cylindrical gears more, the Gear center distance that this column gear transmission need to be fixed, but it is movably that the semicircle on the existing market rolls the topping roll that prolongs machine, after topping roll moves up, it is large that roll centre distance becomes, the tooth interlock distance of the transmission cylindrical gears of roll one end is along with becoming large, the swing of topping roll is also along with becoming large, the blank that roll forging goes out is asymmetric and distortion is larger, and service life of gear is low, processing has increased difficulty to postorder, has reduced work efficiency, has increased processing cost.

Gear shown in Fig. 1,2 is the GB cylindrical gears, and its gear teeth width D is 15.7mm, and gullet depth H is 22.5mm.

The model utility content

The utility model has overcome above-mentioned the deficiencies in the prior art, a kind of lifting that semicircle rolls the upper roll shaft that prolongs machine of satisfying is provided, and the tooth interlock distance of driving gear is not increased, reach semicircle and rolled the roll forging demand of prolonging machine, the blank precision that provides to following process is high, steady quality, work efficiency fast, the novel Cylindrical Gear of low cost of manufacture, changed the gullet depth of gear by design, make gear increase in the course of the work length of action, prolonged the working life of gear.

The technical solution of the utility model is achieved in that

A kind of Cylindrical Gear is evenly distributed with the gear teeth at the periphery of gear, and the thickness of the gear teeth is 17～18.5mm, and the degree of depth of teeth groove is 29～33mm between the gear teeth.

As preferably, the thickness of the gear teeth is 17.7mm, and the degree of depth of teeth groove is 31.5mm between the gear teeth.

Adopted the beneficial effects of the utility model of technique scheme to be:

The utility model has designed a kind of semicircle and has rolled the Cylindrical Gear that prolongs machine adjusting mould upper-lower position, on this modified gear, changed the external diameter of gear by design, increased the tooth depth of gear, and be installed in the end that semicircle rolls the upper and lower roll mandrel that prolongs on the machine, roll the upper roll shaft lifting distance 5mm that prolongs machine by regulating semicircle, the gear clearance of Cylindrical Gear changes less than 1.5mm, changed the tooth depth of gear by design, make gear increase in the course of the work length of action, improved the working life of gear.

Description of drawings

Fig. 1 is the structural representation of GB cylindrical gears in the prior art;

Fig. 2 is the A section enlarged view of Fig. 1;

Fig. 3 is the structural representation of the utility model Cylindrical Gear;

Fig. 4 is the A section enlarged view of Fig. 3;

Fig. 5 is the working state schematic representation of the utility model gear;

Fig. 6 is the A section enlarged view of Fig. 5.

Embodiment

Embodiment of the present utility model is as follows:

Embodiment: a kind of Cylindrical Gear, shown in Fig. 3,4, be evenly distributed with the gear teeth 2 at the periphery of gear 1, the thickness D of the gear teeth 2 is 17.7mm, the depth H of 2 teeth groove 3 of the gear teeth is 31.5mm.

Shown in Fig. 5,6, Cylindrical Gear of the present utility model is installed in the end that semicircle rolls the upper and lower roll mandrel that prolongs on the machine in use, raise semicircle by adjusting and roll the upper roll shaft that prolongs machine, both centre distance X are changed, and since this Cylindrical Gear by changed gullet depth by design, make gear increase in the course of the work length of action, so roll shaft can not produce swing.

Claims

1. Cylindrical Gear is evenly distributed with the gear teeth at the periphery of gear, and it is characterized in that: the thickness of the gear teeth is 17～18.5mm, and the degree of depth of teeth groove is 29～33mm between the gear teeth.

2. Cylindrical Gear according to claim 1, it is characterized in that: the thickness of the gear teeth is 17.7mm, the degree of depth of teeth groove is 31.5mm between the gear teeth.