JPS631946A - Double cylinder tester - Google Patents

Abstract

PURPOSE:To test a rolling transmission characteristic when a ring to be driven and a drive roller are inscribed with each other, by providing a pressurizing part to which the pressure contact force of the drive roller and the ring to be driven is applied steplessly. CONSTITUTION:The pressurizing device fixed to a testing stand 15 has a piston 13 mounted therein and the pressurizing pin 12 driven by said piston 13 pushes the pressure receiving part 7 mounted to a shaft 3 through a bearing 11 and generates contact pressure between a roller 4 and a ring 5 at a part A. The pressure receiving part 7 is fixed and connected to a support stand 17 in an axial direction in a state movable in an up-and-down direction by the pin 14. As a result, the force applied to the contact surface of the ring 5 and the roller 4 is shown by the relation of Pa=[b/(b+a)]P (where P is the force applied to the pressure receiving part 7 and Pa is the supporting force at the point A). Since the pressurizing pin 12 is driven by oil pressure, P is changed steplessly and, therefore, Pa can be also changed steplessly.

Description

[Detailed description of the invention] (Technical field) The present invention relates to a two-cylinder testing machine.

(Background Art) Conventionally, a two-cylindrical testing machine in which two rollers are circumscribed has been reported as a testing device for a rolling transmission mechanism with nine rollers between the rollers. (References - Results report of the research subcommittee on Trax gastrointestinal drive, page 6
8-F75, Japan Society of Mechanical Engineers, March 1985) However, these testing machines were unable to test the characteristics of rolling transmission due to the internal contact between the roller and the ring.

(Objective of the Invention) Therefore, the present invention was proposed in order to improve the above-mentioned drawbacks, and an object of the present invention is to provide a two-cylinder testing machine that can test rolling transmission characteristics when a ring and a roller are inscribed.

Still another object is to provide a pressure mechanism that can steplessly adjust the contact pressure between the roller and ring of this two-cylinder testing machine.

(Disclosure of the Invention) In order to achieve the above object, the present invention provides a drive roller 4 that is integrally provided at the tip of a shaft 3 driven by an electric motor 1 and a drive roller 4 that is in pressure contact with the drive roller 4 to generate rotational force. A two-cylinder testing machine having a driven ring 5 transmitted by a roller 4, and further comprising a pressure section 6 that can steplessly apply pressure between the driving roller 4 and the driven ring 5. The gist of the invention is a testing machine.

Next, embodiments of the present invention will be described with reference to the accompanying drawings.

It should be noted that the embodiments are merely illustrative, and it goes without saying that various changes and improvements may be made without departing from the spirit of the present invention.

FIG. 1 shows an embodiment of the two-cylinder testing machine of the present invention.

As shown in the figure, in the testing machine of the present invention, rotation driven by an electric motor 1 is transmitted to a shaft 3 through a torque meter 2. The tip of this shaft 3 is directly connected to a roller 4 which is a test piece. This roller 4 is inscribed in the ring 5 with contact pressure, and the rotation of the roller 40 is transmitted to the ring 5 by rolling transmission. Further, the ring 5 is directly connected to the shaft 8 on the driven side, transmits rotation to a load device 10 via a torque meter 9, and tests are performed by varying the load by the load device 10. Note that 6 indicates a pressure section with a built-in piston, and 7 indicates a pressure receiving section.

The pressurizing mechanism in this test machine is shown in Figure 2.

The pressurizing device 6 fixed to the test stand 15 has a piston 1 inside.
3 and driven by this piston 13, a pressure receiving part 7 is attached to the shaft 3 via a bearing 11.
is pressed to generate contact pressure between the roller 4 and the ring 5 at part A. 8 indicates the output shaft.

Here, the pressure receiving part 7 is movable in the vertical direction by the bin 14 and fixedly connected to the support base 17 in the axial direction. As a result, the force applied to the contact surface between the ring 5 and the roller 4 becomes as shown in FIG. If the distance between the support stand 17 of the pressure receiving part 7 and the support stand 16 of the shaft 3 on the motor l side is b1, and conversely, the distance between the contact part of the roller 4 and the ring 5 is a, the force applied to the pressure receiving part 7 is If P is the force P supported at point A, and the force Pb supported at point B, p == Pa
10Pb...The relationship between (1) and (1) is established. Also, between Pa and PbO, a・p, x=
There is a relationship such as b・Pb (2), and it is finally expressed as P, and P#'i P.=Blue P -°-°° (3).

Here, the pressurizer 12 is driven by hydraulic pressure (3)
Since P in the formula can be changed steplessly, Pl can also be changed steplessly.

(Effects of the Invention) As described above, the present invention provides a drive roller 4 which is provided integrally with the shaft 3 at the tip of the shaft 3 driven by an electric motor 1, and which is in pressure contact with the drive roller 4 and transfers rotational force to the roller 4. It is a two-cylindrical testing machine having a driven ring 5 that transmits the information, and further includes a pressure section 6 that can steplessly apply the pressure contact force between the driving roller 4 and the driven ring 5. It is effective.

(a) Two-cylinder test is possible by inscribing the ring and roller.
It is Noh.

(B) The output rotation of the ring is transmitted to the output shaft without going through gears, etc., allowing for highly accurate testing.

(c) Since it uses hydraulic pressure and pressurizes with a piston, the contact pressure between the roller and ring can be changed steplessly.

For the same reason as above, dynamic tests such as pressure fluctuations are possible because the contact pressure changes during rotation.

etc.

[Brief explanation of the drawing]

FIG. 1 is an overall view of the two-cylinder testing machine of the present invention, FIG. 2 is an enlarged view of the pressurizing part, and FIG. 3 is an original diagram of the pressurizing force. 1... Electric motor, 2... Torque meter (input), 3...
Shaft (input), 4...Roller, 5...Ring, 6
・・・Pressure part゛, 7...Pressure receiving part, 8...Shaft (
output), 9...torque meter (output), 1o...load device, 11...bearing, 12...pressure bottle, 13...
Piston, 14゛... Fixed bottle, 15... Test stand,
16... Support stand, 17... Support stand.

Claims (1)

[Claims] A driving roller 4 provided integrally with the shaft 3 at the tip of the shaft 3 driven by the electric motor 1; and a driven ring 5 that is in pressure contact with the driving roller 4 and transmits rotational force from the roller 4.
It is a two-cylindrical testing machine having a pressure unit 6 which can steplessly apply pressure between the driving roller 4 and the driven ring 5.
A two-cylinder testing machine characterized by having: