JP2593071Y2 - Power circulation type gear testing machine - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gear testing machine. More specifically, the present invention relates to a power circulation type gear testing machine.

[0002]

2. Description of the Related Art FIG. 1 shows an example of a power circulation type gear testing machine. In FIG. 1, reference numeral 1 denotes a test gear box, a gear shaft 2a in which a pair of test gears 1a and 1b meshing with each other are supported by bearings 3a and 3b, respectively.
And 2b are favored. Reference numeral 4 denotes a power circulating gear device, which is supported by gear shafts 5a and 5b in which a pair of gears 4a and 4b are supported by bearings 6a and 6b. The gear shafts 2a and 5a are connected by a constant velocity joint 7,
The gear shafts 2b and 5b are connected by joints 8a and 8b and an intermediate shaft 8. 9 is an electric motor for driving the gear shaft 5a. Reference numeral 10 denotes a hydraulic cylinder for applying a torsional force to the gear shaft 5b.

[0003] With such a configuration, the torsion moment is applied to the intermediate shaft 8 by the hydraulic cylinder 10 or the like while the motor 9 is operating or stopped. When the electric motor 9 is operated, power is transmitted between the test gears 1a and 1b, and the power circulates in a system constituted by the power circulation gear device 4 and the gears 1a and 1b.
The durability test of the gears 1a and 1b can be performed.

As described above, the conventional power circulation type gear testing machine uses the integrated gear box 1 having a single inter-axis distance d, and connects the low-speed shaft and the high-speed shaft to circulate the power. Therefore, in order to test a gear having a different center distance, a new testing machine having a different center distance is required. Or, a new test gear box was required among the test machines.

[0005]

SUMMARY OF THE INVENTION A durability test for gears having different shaft distances can be easily performed by the same gear tester, and a durability test for gears with a single contact can be easily performed. It is an object of the present invention to provide a circulation type gear testing machine.

[0006]

The test gear box is divided into a movable gear box and a fixed gear box, and the movable gear box is moved in a direction orthogonal to the gear axis of the fixed gear box. A spacer is interposed between the two gear boxes, and the moving-side gear box is tightened and fixed to the base with bolts so that it can respond to changes in the distance between the gear shafts of the test gears that are supported by each gear box. I made it. The test gear box is divided into a moving-side gear box and a fixed-side gear box, and the gear axis of the test gear supported by the moving-side gear box is angled with respect to the gear axis of the test gear supported by the fixed-side gear box. θ
The moving gear box is fixed on the base with bolts on the base by interposing a spacer having an angle θ between the two gear boxes in a state where the gear box is inclined, and the gear shaft of the test gear supported by each gear box. Is supported with a slope of the angle θ, thereby enabling a one-sided test.

[0007]

[Function] The test gear box is divided into a fixed side and a movable side, and the movable side gear box is made movable and fixed to the base via a spacer, so that the distance between the test gear axes can be easily changed. Can respond. Also, the angle of the moving gear box is
The test gears on the movable side and the fixed side are fixed at an angle θ
Since it can be tilted, the one-sided test can be easily performed. Further, by providing a spacer of a predetermined width and a predetermined angle θ between the fixed-side gear box and the movable-side gear box, the distance or inclination between the two gear boxes can be reliably maintained.

[0008]

[Embodiment 1] A description will be given based on FIG. The difference between FIG. 2 and the known testing machine in FIG. 1 is that the test gear box 1 in FIG.
b, and supports a test gear that meshes with each other. In FIG. 2, a spacer 12 having a width c is inserted between the moving gear box 11a and the fixed gear box 11b, and the divided test gear boxes 11a and 11b are in close contact with both sides of the spacer 12. Fix to 13. Then, several kinds of spacers 12 are prepared in order to correspond to the required center distance d. The gear ratio between the test gear 1a and the test gear 1b and the reduction ratio (speed increase ratio) of the power circulating gear device 4 are the same.
With such a configuration, the hydraulic cylinder 10 is attached to the intermediate shaft 8 while the motor 9 is operating or stopped, similarly to the conventional structure of FIG.
Give a torsional moment by, for example, When the electric motor 9 is operated, power is transmitted between the test gears 1a and 1b, and the power circulates in a system constituted by the power circulating gear device 4 and the test gears 1a and 1b. Testing can be performed.

[0009]

FIG. 2 shows a power circulating gear device 4 and test gears 1a,
FIG. 3 shows a case where the test gears 1a 'and 1b' have different center distances d 'from those of the power circulating device 4, and in this case, the center distance d is the same. Corresponding to d ', a wide spacer 12' is used. The constant-velocity joint 7 is not parallel to the intermediate shaft 8 because the center distance between the power circulating gear device 4 and the test gears 1a 'and 1b' is different, but power is transmitted to the smooth through the constant-velocity joint 7. It is configured to be.

[0010]

Embodiment 3 Embodiment 1 (FIG. 2) and Embodiment 2 (FIG. 3) are for the case where the gear axes of the test gears are parallel, but this embodiment (FIG. 4).
Is a so-called one-side tester in which the fixed-side and movable-side gear shafts make an angle θ with each other. In order to perform the durability test of the gear by giving the one-side contact, it was necessary to perform a special test gear, for example, a work such as giving an error in the tooth trace direction. However, according to this embodiment, it is not necessary to perform the work on the test gear side. In FIG. 4, 14a is a moving-side gear box, 14b
Is a fixed gear box. A spacer 16 having an angle θ is inserted between the test gear 15a supported by the moving gear box 14a and the test gear 15b supported by the fixed gear box 14b, and an angle θ is formed between the gear shafts 17a and 17b. I have. Test gear 1
5a and 15b and spacer 16
8 on top. It is assumed that several types of spacers 16 are prepared according to the type of the angle θ. Further, the gear ratio of the test gears 15a and 15b and the gear ratio (speed increase ratio) of the power circulating gear device 4 are set to be the same.

FIGS. 5 and 6 show details of the moving gear box.
FIG. 5 shows a mechanism for moving the movable gear box while the gear axes of the test gears are parallel as in the first and second embodiments, and FIG. 6 shows the mechanism for moving the movable gear box 14a as in the third embodiment (FIG. 4). This is the case of a one-sided testing machine for testing by tilting θ. FIG. 7 shows details of the gear box. For example, the gear box 11b shown in FIG.
And a face plate 22 and a case 23 erected on the base plate 21 to fix the base plate 21 on the base 13. As shown in FIG. 5, when the gear shafts 2a and 2b are parallel, the moving gear box 11a
The base plate 21 is provided with an elongated hole 19 oriented in the moving direction (the direction orthogonal to the gear shaft 2a).
May be tightened and fixed to the base 13 with bolts. FIG. 6 shows an angle changing type. In this case, the moving gear box 14a is provided with an arc-shaped long hole 20 facing the gear shaft direction.
The movable gear box 14a can be fixed on the base 13 at a desired angle θ through the spacer 16 having the angle θ.

[0012]

[Effect] Since the test gear box is divided into a fixed side and a movable side, and one moving side gear box is movable with respect to the fixed side, the distance between the shafts can be changed within the allowable deflection angle range of the constant velocity joint. It is possible, and a test using a wide range of test gears can be performed with one testing machine. Further, the angle of contact with one side can be changed within the allowable angle range of the constant velocity joint, and the durability test of the gear under a wide range of conditions can be performed with a single testing machine.

[Brief description of the drawings]

FIG. 1 is a known power circulation type gear testing machine.

FIG. 2 is a first embodiment of a power circulation type gear testing machine according to the present invention.

FIG. 3 is a second embodiment of the power circulation type gear testing machine according to the present invention.

FIG. 4 is a third embodiment of the power circulation type gear testing machine according to the present invention.

FIG. 5 is a plan view of a base plate of a gear shaft parallel type test gear box.

FIG. 6 is a plan view of an inclined gear shaft base plate.

FIG. 7 is an overall side view of the gear box.

[Explanation of symbols]

1 Test gear box 1a, 1b, 1a ', 1b'
Test gear 2a, 2b Gear shaft 3a, 3b Bearing 4 Power circulating gear 4a, 4b Gear 5a, 5b Gear shaft 6a, 6b Bearing 7 Constant velocity joint 8 Intermediate shaft 8a, 8b Joint 9 Motor 10 Hydraulic cylinder 11a Moving gear box 11b Fixed gear box 12, 12 'Spacing 13 Base 14a Moving gear box 14b Fixed gear box 15a, 15b Test gear 16 Spacing 17a, 17b Gear shaft 18 Base 19 Elongated hole 20 Arc-shaped elongated hole 21 Base plate 22 face plate 23 case

Claims (2)

(57) [Scope of request for utility model registration] 1. A test gear box is divided into a movable gear box and a fixed gear box. The movable gear box is moved in a direction orthogonal to the gear axis of the fixed gear box. The power circulation system is capable of coping with changes in the distance between the gear shafts of the test gears that are supported on each gear box by fastening the moving-side gear box to the base with bolts with a spacer Type gear testing machine. 2. The test gear box is divided into a movable gear box and a fixed gear box, and the gear shaft of the test gear supported by the movable gear box is divided into two parts. The angle θ between the two gearboxes with the angle θ inclined to the gear axis
The moving gear box is fixed on the base with bolts through the spacers, and the one-sided test can be performed with the gear shaft of the test gear supported by each gear box supported at an angle of θ. Power circulation type gear testing machine.