Topic
Pressure angle
About: Pressure angle is a research topic. Over the lifetime, 1373 publications have been published within this topic receiving 10245 citations. The topic is also known as: angle of obliquity.
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TL;DR: In this paper, a method of obtaining the effective profile and its deviations from the theoretical involute form required is presented, and the effect of regrinding on the profile error of the cutting edge is also brought out.
Abstract: Gear shaping cutters are provided with top-relief and rake angles to facilitate effective cutting. Due to this, the profile representing the cutting edge (effective profile) is altered. This paper outlines a method of obtaining the effective profile and its deviations from the theoretical involute form required. This paper also deals with a method that modifies the pressure angle, while maintaining zero deviation at the reference circle, so that the effective profile closer to the theoretical form is obtained after grinding the rake face. The Golden section optimization method is used to get the optimum value of the modified pressure angle. The effect of regrinding on the profile error of the cutting edge is also brought out. The method suggested in this paper will be useful to the designers and manufacturers of gear shaping cutters.
1 citations
Journal Article•
TL;DR: In this paper, the authors suggest one of references in applying non-circular gear to industrial plant, and suitable range of application by pressure angle curvature and angle ratio, and they suggest a simple structure than link and cam.
Abstract: Non-circular gear has a good velocity ratio in high speed and heavy load without any slip, moreover, it can transmit various motion, using simpler structure than link and cam, automation mechainism. In case of designing and manufacturing non-circular gear. I suggest one of references in applying non-circular gear to industrial plant, and suitable range of application by pressure angle curvature and angle ratio
1 citations
Patent•
13 Jul 2006
TL;DR: In this paper, a rack and pinion type steering gear device was used to achieve high efficiency of a rolling rack guide and prolong its service life when using a rack-and pinion-type steering gear devices by combining with an EPS.
Abstract: PROBLEM TO BE SOLVED: To achieve high efficiency of a rolling rack guide and prolong its service life when using a rack and pinion type steering gear device by combining with an EPS. SOLUTION: In this rack and pinion type steering gear device, leaving force Fα decided by a pressure angle of a gear and lateral force Fβ decided by a rack twist angle are generated in a rack by meshing of gears, rotary moment Mβ is generated in the rack by the lateral force Fβ, and drag Fr for cancelling the rotary moment Mβ acts. These resultant force F acts on the rack guide from the rack. If an action line of the resultant force F is on an "inner side" more than an end part of a needle bearing 25 in the rack guide 21 of rolling type, rotation of a roller 22 becomes stable. COPYRIGHT: (C)2006,JPO&NCIPI
1 citations
Patent•
14 Jan 2015
TL;DR: In this article, a double-roller device for automatically searching a normal line and measuring a pressure angle of a cam, and the device comprises a rack, a driven part mechanism, the cam and the pressure angle measurement mechanism.
Abstract: The utility model discloses a double-roller device for automatically searching a normal line and measuring a pressure angle of a cam, and the device comprises a rack, a driven part mechanism, the cam, and a pressure angle measurement mechanism. The device provided by the utility model can measure the pressure angle of a disc-shaped cam with any shape quickly and accurately. The device can display the size of the pressure angle of the shape of the cam in real time, can accurately determine the size and position of the maximum pressure angle, can help students analyze the pressure angle, and also can help the students understand the concept of the pressure angle.
1 citations
Patent•
18 Apr 2005TL;DR: A forced harmonic vibration master gear for use in a device for detecting imperfections in a production gear includes a gear body having a plurality of gear teeth, each of the gear teeth has a graduation of material added to the form diameter of each tooth to decrease the pressure angle of the tooth as mentioned in this paper.
Abstract: A forced harmonic vibration master gear for use in a device for detecting imperfections in a production gear includes a gear body having a plurality of gear teeth. Each of the plurality of gear teeth has a graduation of material added thereto extending from a form diameter of each tooth to an end of the tooth to decrease the pressure angle of the tooth. The forced harmonic master gear when used to test an unacceptable production gear, induces in the unacceptable production gear, when rotating, a vibrational force that is at least 50 percent greater than a vibrational force exhibited by the unacceptable production gear when a standard master gear is used to test the unacceptable production gear, in at least one band of 70 Hz to 150 Hz, 151 Hz to 300 Hz, 301 Hz to 550 Hz, 551 Hz to 1250 Hz and 1251 Hz to 2000 Hz. When the forced harmonic master gear is used to test an acceptable production gear, the acceptable production gear, when rotating, exhibits a vibrational force that is no more than 25 percent greater than a vibrational force exhibited by the acceptable production gear when a standard master gear is used to test the acceptable production gear.
1 citations