Reducer
A technology of reduction gear and output shaft, which is applied in the direction of transmission, transmission parts, gear transmission, etc., can solve the problems of tooth surface precision reduction, rotation transmission obstruction, and production cost, so as to suppress production cost and prevent gear Decrease in surface accuracy and effect of ensuring tooth surface accuracy
Inactive Publication Date: 2016-10-05
NTN CORP
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0008] However, since the internal gear 54 is fixed by being press-fitted into the housing 51, the precision of the tooth surface decreases due to deformation during the press-fitting.
In this case, the revolution of the roller 56 cannot be performed smoothly, and there is a problem that smooth transmission of rotation from the input shaft to the output shaft is hindered.
[0009] In addition, as described above, since the internal gear 54 is formed in a cylindrical shape having a width in the axial direction, it is necessary to form teeth on the inner peripheral portion by broaching or the like in addition to forming the cylindrical outer shape portion. production cost
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0049] Hereinafter, the reduction gear transmission of the present invention will be described based on the drawings. Figure 1 ~ Figure 4 shows the first embodiment.
[0050] Such as figure 1 As shown, the casing 11 is formed in a cylindrical shape. It includes an internal gear 14 fixed in the housing 11 , an input shaft 12 rotatably supported by the housing 11 , and an output shaft 13 arranged coaxially with the input shaft 12 .
[0051] The casing 11 is divided into two in the axial direction to form a first split casing 11a and a second split casing 11b. The first split case 11 a and the second split case 11 b are joined together by fastening of bolts not shown in the figure, and are integrally formed.
[0052] The first split case 11a has a large-diameter recess 15 formed on the inner peripheral portion of the end facing the second split case 11b. An axial engaging groove 15a is provided on the inner peripheral surface of the large-diameter concave portion 15 (refer ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The present invention provides a reduction gear. The tooth surface accuracy of the internal gear is ensured, and the production cost of the internal gear is suppressed. The input shaft (12) and output shaft (13) rotatably supported on the housing (11) and the internal gear (14) fixed to the housing (11) are arranged in a coaxial shape, and the input shaft (12) ) between the eccentric shaft portion (18) and the internal gear (14), the roller (21) is held rotatably by a retainer (22). The internal gear (14) is formed so that the plurality of plate-shaped internal gears (30) are overlapped in a state where the teeth (32) of the multiple plate-shaped internal gears (30) are in the same circumferential position, and are fitted in the Inside the housing (11). Through the axial engagement groove (15a) provided in the housing (11) and the protrusion (31) provided on the outer peripheral portion of the plate-shaped internal gear (30) fitted in the engagement groove (15a), To form an engaging mechanism that prevents each plate-shaped internal gear (30) from rotating relative to the housing (11). The internal gear (14) is fixed to the casing (11) by using the engaging mechanism.
Description
[0001] This application is a divisional application of the application with the application number 201080037851.3, the application date is August 20, 2010, and the invention name is "reduction device". technical field [0002] The present invention relates to a roller-type speed reducer configured to decelerate the rotation of an input shaft and transmit it to an output shaft by sequentially meshing rollers having fewer teeth than the above teeth with teeth formed on the inner circumference of an internal gear. Background technique [0003] As such a roller speed reducer, a device described in Patent Document 1, for example, is conventionally known. Figure 19 A roller speed reducer described in Patent Document 1 is shown. In this roller speed reducer, an input shaft 52 and an output shaft 53 are disposed coaxially on opposite ends of a cylindrical housing 51, and an internal gear 54 having a plurality of teeth on the inner periphery is fixed to In the housing 51, at the sha...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): F16H57/021F16H57/08F16C33/38
CPCF16H1/32F16H2055/176
Inventor 佐藤光司斋藤隆英
Owner NTN CORP