JPH0628691U - Power circulation type gear testing machine - Google Patents

Abstract

(57) [Summary] [Purpose] To allow the shaft distance, gear ratio, and support span of the test gear to be set arbitrarily. [Structure] A first shaft 16 and a second shaft 17 are rotatably supported by a gear box 12, and the first shaft 16 and the second shaft 17 are connected to a drive motor 11 via a gear and a differential reduction gear 22. Link. The first shaft 16 is projected from one side wall 12a of the gear box 12 and the first power take-off gear 18 is attached so as to be adjustable in the axial direction. The second shaft 17 is projected from the other side wall 12b of the gear box 12 and the second power take-off gear 19 is attached so as to be adjustable in the axial direction. The first and second test shafts 41, 4 are attached to the test gear box 40.
2 is rotatably supported, and a first input gear 43 is attached to one end of the first test shaft 41 near one end. The second input gear 44 is mounted near the other end of the second test shaft 42. The first and second test gears 45 and 46 are attached to the first and second test shafts 41 and 42, respectively.
To be engaged with each other, the test gear box 40 is attached to the gear box 12, and the first and second input gears 43 and 44 are
The first power take-off gears 18 and 19 are meshed with the first
The second test gears 45 and 46 are rotated and tested.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a power circulation type gear testing machine.

[0002]

[Prior art]

 As a power circulation type gear testing machine, for example, the one shown in FIG. 6 is known. That is, the first shaft 4 and the second shaft 5 are arranged in parallel over the one side portion 2 and the other side portion 3 of the base 1, and the first shaft 4 and the second shaft 5 are connected to the one side portion 2. The drive gear device 6 provided is connected to each other, and the test gear 7 is attached to the other side portion 3 of the first shaft 4 and the second shaft 5 so as to mesh with each other, and the torque applying mechanism 8 is provided at the intermediate portion of the first shaft 4. A gear tester that measures the life until damage to the gear surface by continuously providing gears with two gears 7 under test by changing the surface pressure, rotation speed, lubricating oil, concentration, etc.

[0003]

[Problems to be solved by the device]

 In such a gear testing machine, the size of the test gear 7 is limited because the test gear 7 meshes with each other with a constant axial distance between the first shaft 4 and the second shaft 5. The gear ratio cannot be changed. Further, since the test gear 7 is attached to the portion of the first and second shafts 4 and 5 projecting from the other side portion 3, the support span of the test gear 7 is always constant and cannot be arbitrarily changed. On the other hand, since the gears in an actual gear device such as a transmission are mounted on gear shafts with different support spans, the load condition acting on the gears varies depending on the support span, but as described above, it does not work in conventional gear testers. Since the support span of the test gear 7 is constant, the gear test cannot be performed in a state where the test gear 7 is actually attached to the gear device. In other words, the conventional gear tester only tests the strength and durability of the test gear itself, and cannot perform the test in the actually mounted state.

Therefore, an object of the present invention is to provide a power circulation type gear testing machine capable of solving the above-mentioned problems.

[0005]

[Means for Solving the Problems]

 A first shaft 16 and a second shaft 17 are rotatably supported in a gear box 12, and the first shaft 16 and the second shaft 17 are connected to a drive motor 11 via a gear and a differential reduction gear 22, The first shaft 16 is protruded from one side wall 12a of the gear box 12 so that the first power take-off gear 18 is axially adjustable, and the second shaft 17 is protruded from the other side wall 12b of the gear box 12 so that 2 Power circulation type gear testing machine with power take-out gear 19 attached so as to be adjustable in the axial direction.

[0006]

[Work]

 Since the axial distance, the gear ratio, and the support span of the first and second test gears 45 and 46 can be set arbitrarily, the gears can be tested while actually mounted.

[0007]

【Example】

 As shown in FIGS. 1 to 4, a drive motor 11 and a gear box 12 are provided on a base 10, and a drive gear 13 is supported by a shaft 14 in the gear box 12, and the shaft 14 is supported by the shaft 14. Is connected to the output side of the drive motor 11 by a coupling 15. A first shaft 16 and a second shaft 17 are rotatably supported laterally between the upper portions of one side wall 12a and the other side wall 12b of the gear box 12, and the first shaft 16 projects outward from the one side wall 12a. The first power take-off gear 18 is attached to the projecting portion 16a so that the position thereof can be adjusted in the axial direction, the second shaft 17 projects outward from the other side wall 12b, and the second power take-out gear 19 is projected to the projecting portion 17a. Is mounted so that the position can be adjusted in the axial direction.

The driving gear 13 in the gear box 12 is connected to a first shaft 16 via a first intermediate gear 20 and a first driven gear 21, and the first intermediate gear 20 connects a differential type speed reducer 22. Via the second, third, fourth, and fifth intermediate gears 23, 24, 25, 26 and the cylindrical shaft 27, the sixth intermediate gear 28, and the second driven gear 29 to the second shaft 17. There is. The differential type speed reducer 22 includes a rotary shaft 30 rotatably laterally mounted between one side wall 12a and the other side wall 12b of the gear box 12, and an eccentric gear 31 is fixed to the rotary shaft 30. The first and second housings 32 and 33 are provided so as to be rotatable relative to the eccentric gear 31, and the first and second internal gears 34 and 35 are attached to the first and first housings 32 and 33, respectively. The first intermediate gear 20 and the second intermediate gear 23 are fixedly attached, and the rotary shaft 30 is connected to the output side of a torque control motor 36 attached to one side wall 12a of the gear box 12. The number of teeth of the first internal gear 34 and the second internal gear 35 is different, and when the eccentric gear 31 is rotated by a slight angle, the first and second internal gears 34, 35 mesh with the eccentric gear 31 in the circumferential direction. Since the positions are different, the first and second internal gears 34 and 35 rotate with a phase difference, which makes it possible to provide a phase difference between the first shaft 16 and the second shaft 17. Therefore, even if the gear ratio of the first and second test gears 45 and 46 deviates from the gear ratio of the power circulation path, the rotating shaft 30 is continuously rotated to rotate the first and second internal gears. Operation is possible by giving relative rotation speeds to 34 and 35. The torque can be applied by rotating the rotary shaft 30 by the torque control motor 36, and the applied torque can be arbitrarily controlled by changing the torque of the torque control motor 36. A torque sensor provided on the cylinder shaft 27, for example, outputs of a plurality of strain gauges 37 can be taken out by a slip ring 38 and combined with a Wheat Lawn bridge circuit for detection.

Next, a gear test will be described. The test gear box 40 is in the shape of a box with an open bottom, and the first test shaft 41 and the second test shaft 42 are rotatably supported on the test gear box 40. The first input gear 43 is mounted near one end, the second input gear 44 is mounted near the other end of the second test shaft 42, and the first and second test shafts 41, 42 are provided in the middle part. The two test gears 45 and 46 are attached so as to mesh with each other. The test gear box 40 is placed on the upper surface 12c of the gear box 12 and bolted to mesh the first input gear 43 with the first power take-off gear 18, and the second input gear 44 with the second power take-off gear. 19, the drive motor 11 rotationally drives the drive gear 13, and at the same time, torque is applied by the torque control motor 36 to rotate the first and second test shafts 41, 42 to rotate the first. The second test gears 45 and 46 are tested.

As described above, the first and second input gears 43 and 44 are attached to the test gear box 40 which is separate from the gear box 12, and the first and second input gears 43 and 44 are attached to the first and second input gears 43 and 44, respectively. Since the two power take-off gears 18 and 19 are meshed with each other, the first and second power take-off gears 18 and 19 can be meshed with each other even if the shaft distances of the first and second input gears 43 and 44 are different from each other. Since the second power take-off gears 18 and 19 are adjustable in the axial direction, they mesh with the first and second power take-off gears 18 and 19 even if the axial distance between the first and second input gears 43 and 44 is different. Further, the differential type speed reducer 22 can give a phase difference to the first and second input gears 43 and 44. Because of this, the axial distance, gear ratio, and support span of the first and second test gears 45 and 46 can be set arbitrarily, and the gears can be tested in the actually used state. Although the differential reducer 22 in the above embodiments is a harmonic reducer, it may be a differential reducer called a cyclo reducer.

[0011]

[Effect of device]

 Since the axial distance, the gear ratio, and the support span of the first and second test gears 45 and 46 can be set arbitrarily, the gears can be tested while actually mounted.

[Brief description of drawings]

FIG. 1 is a front view of a gear testing machine.

FIG. 2 is a left side view of the gear testing machine.

FIG. 3 is a right side view of the gear testing machine.

FIG. 4 is a plan view of the gear testing machine.

FIG. 5 is a sectional view of a power transmission unit of the gear tester.

FIG. 6 is a schematic explanatory diagram of a conventional example.

[Explanation of symbols]

11 ... Drive motor, 12 ... Gear box, 12a ... One side wall,
12b ... other side wall, 13 ... driving gear, 16 ... first shaft, 1
7 ... 2nd shaft, 18 ... 1st power extraction gear, 19 ... 2nd power extraction gear, 22 ... Differential reduction gear, 40 ... Test gear box, 4
DESCRIPTION OF SYMBOLS 1 ... 1st test shaft, 42 ... 2nd test shaft, 43 ... 1st input gear, 44 ... 2nd input gear, 45 ... 1st test gear, 4
6 ... Second test gear.

Claims (2)

[Scope of utility model registration request] 1. A drive motor for rotatably supporting a first shaft 16 and a second shaft 17 in a gear box 12, and driving the first shaft 16 and the second shaft 17 through a gear and a differential reduction gear 22. 11, the first shaft 16 is protruded from one side wall 12a of the gear box 12 so that the first power take-off gear 18 is axially adjustable, and the second shaft 17 is attached from the other side wall 12b of the gear box 12. A power circulation type gear type testing machine in which a second power take-out gear 19 is attached so as to be adjustable so as to be adjustable in the axial direction. 2. The first and second test shafts 4 are attached to the test gear box 40.
1, 42 are rotatably supported, and the first input gear 43 is attached to one end of the first test shaft 41 near the one end thereof.
The second input gear 44 is attached near the other end of 2, and
The first and second test gears 45, on the second test shafts 41, 42,
46 is mounted by meshing with each other, the test gear box 40 is mounted on the gear box 12, and the first and second input gears 43, 44 are meshed with the first and second power take-off gears 18, 19, respectively. 1. The power circulation type gear testing machine according to 1.