CN206556872U - A kind of torsion load maintainer for being used to close power gear test stand - Google Patents

Abstract

The utility model discloses a torsional loading mechanism for a closed power gear test bench, which comprises a support frame, left and right end covers located on both sides of the support frame, an input shaft and an output shaft, and the input shaft is rotatably installed on the left end cover of the support frame , the output shaft is fixedly connected to the right end cover; a pair of parallel-axis transmission worms and a worm gear meshed with the two transmission worms are installed at intervals on the support frame, and both ends of each transmission worm are rotatably assembled on the support frame, and Both transmission worms have power input ends, and internal splines are provided on the worm gear, and the worm gear is fixedly connected with the end of the input shaft through the internal splines. The torsional loading mechanism can effectively solve the problems of unstable loading, inconvenient adjustment, and easy unloading after loading of existing mechanical loading devices.

Description

A Torsional Loading Mechanism for Closed Power Gear Test Bench

technical field

The utility model relates to the field of mechanical loading devices, in particular to a torsional loading mechanism for a closed power gear test bench.

Background technique

The gear durability test requires that the loading mechanism is stable and reliable, easy to adjust, and the test process can save energy consumption to the greatest extent. At present, there are mainly three types of loading devices: mechanical loading, hydraulic loading, and electric power closed loading. However, because traditional mechanical loading needs to be manually adjusted, loading is extremely inconvenient, easy to unload, and the load is unstable; hydraulic loading and electric power closed loading are both External force loading needs to maintain power input all the time, hydraulic loading has high requirements on the hydraulic system, the energy consumption is too large, the electric power closed loading control system is complicated, and the equipment cost is extremely high; while worm gear loading belongs to internal force loading, and when the lead of the worm When the angle is smaller than the equivalent friction angle between the meshing teeth, it has self-locking property. The worm gear transmission has a large transmission ratio, large load capacity, and stable transmission. It is often used to transmit motion and power between two interlaced shafts. Torsional loading mechanism for closed power gear test benches loaded by worm.

Utility model content

In order to solve the above-mentioned technical problems, the utility model provides a torsional loading mechanism for a closed-power gear test bench. The torsional loading mechanism can effectively solve the problem of unstable loading, inconvenient adjustment, and easy loading after loading of existing mechanical loading devices. Uninstall problem.

The technical solution adopted by the utility model is: a torsional loading mechanism for a closed power gear test bench, including a support frame, left and right end covers located on both sides of the support frame, an input shaft and an output shaft, and the input shaft is rotatably installed On the left end cover of the support frame, the output shaft is fixedly connected with the right end cover; a pair of drive worms parallel to the axis and a worm gear meshed with the two drive worms are installed at intervals on the support frame, and each drive worm is rotated at both ends. On the support frame, and both transmission worms have power input ends, the worm wheel is provided with an internal spline, and the worm wheel is fixedly connected with the end of the input shaft through the internal spline.

As a further optimization of the torsional loading mechanism used in the closed power gear test bench of the present invention, the two ends of the transmission worm are provided with mating sections for the rotation of the transmission worm, and the mating section is provided with mating sections for the transmission worm The assembly hole, the transmission worm is fitted in the assembly hole through the rotation of the bearing.

As a further optimization of the torsional loading mechanism used in the closed power gear test bench of the present invention, the power input end of the transmission worm has an assembly section for connecting power input, the assembly section is provided with a keyway, and the transmission worm passes through the keyway Connect power input.

As a further optimization of the torsional loading mechanism used in the closed power gear test bench of the present invention, the internal splines on the worm wheel are coaxially arranged with the worm wheel.

Compared with the prior art, the utility model has at least the following advantages and beneficial effects:

The utility model drives the rotation of the worm wheel through the simultaneous rotation of a pair of transmission worms, and the worm wheel drives the input shaft to rotate. Because the input shaft is installed in rotation with the left end cover of the support frame, and the output shaft is fixedly connected with the right end cover of the support frame, so when the input shaft rotates The support frame does not move, and the output shaft does not move. After the input shaft rotates, it is kept stable by the self-locking property of the double worm. The worm gear loading belongs to the internal force type loading. The worm gear transmission has the advantages of large transmission ratio, stable movement, and large load bearing. It can realize stable torque loading, and because of the self-locking property of the worm, it can ensure that the loaded load will not be unloaded or unloaded very quickly. small. The torsional loading mechanism can effectively solve the problems of unstable loading, inconvenient adjustment, and easy unloading after loading of existing mechanical loading devices.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a schematic diagram of the installation structure of the present utility model;

Reference signs: 1, support frame, 2, transmission worm, 3, worm gear, 4, input shaft, 5, left end cover, 6, right end cover, 7, output shaft, A, transmission gearbox, B, test gearbox.

detailed description

In order to make the content of the utility model more obvious and understandable, the utility model will be described in detail below in conjunction with specific embodiments.

As shown in the figure, a torsional loading mechanism for a closed power gear test bench includes a support frame 1, a left end cover 5 and a right end cover 6 located on both sides of the support frame 1, an input shaft 4 and an output shaft 7, and the input shaft 4 Rotatingly installed on the left end cover 5 of the support frame 1, the output shaft 7 is fixedly connected with the right end cover 6; a pair of parallel transmission worms 2 and a worm gear 3 meshing with the two transmission worms 2 are installed at intervals on the support frame 1 , both ends of each transmission worm 2 are rotatably assembled on the support frame 1, and both transmission worms 2 have power input ends, the worm gear 3 is provided with internal splines, and the worm gear 3 is connected to the input shaft through the internal splines The ends of 4 are fixedly associated.

In order to make the utility model have a better use effect, the two ends of the transmission worm 2 are provided with a mating section for the rotation of the transmission worm 2, and an assembly hole for the transmission worm 2 is provided on the mating section, and the transmission worm 2 is mated in the assembly hole through the rotation of the bearing. The power input end of the transmission worm 2 has an assembly section for connecting the power input, and the assembly section is provided with a keyway, and the transmission worm 2 is connected to the power input through the keyway.

As a preferred manner, the internal spline provided on the worm wheel 3 is arranged coaxially with the worm wheel 3 .

In this technical solution, the loading mechanism is a torsional loading mechanism used in a closed-power gear test bench. The input power makes the worm 2 rotate and drives the worm wheel 3 to rotate. The worm wheel 3 drives the input shaft 4 to rotate. When the input shaft 4 rotates, The end cover does not move, that is, the output shaft 7 does not move, that is to say, the input shaft 4 rotates an angle relative to the output shaft 7. After the torque is loaded, it relies on the self-locking property of the double worm to maintain the torque loading, so as to realize the torque of the test bench. load.

The technical solutions and implementations listed in the utility model are not limiting, and the solutions that are equivalent to or have the same effect as the technical solutions and implementations listed in the utility model are all within the protection scope of the utility model.

Claims (4)

1. A torsional loading mechanism for a closed-power gear test bench, characterized in that it includes a support frame (1), left end covers (5) and right end covers (6) located on both sides of the support frame (1), and an input shaft (4) and the output shaft (7), the input shaft (4) is rotatably installed on the left end cover (5) of the support frame (1), and the output shaft (7) is fixedly connected with the right end cover (6); the support frame ( 1) A pair of drive worms (2) parallel to the axis and a worm wheel (3) meshing with the two drive worms (2) are installed at intervals on the upper part, and both ends of each drive worm (2) are rotatably assembled on the support frame (1) above, and the two transmission worms (2) have power input ends, the worm wheel (3) is provided with an internal spline, and the worm wheel (3) is fixedly connected with the end of the input shaft (4) through the internal spline. 2. A torsional loading mechanism for a closed power gear test bench according to claim 1, characterized in that: both ends of the drive worm (2) are provided with mating sections for the drive worm (2) to rotate , the mating section is provided with an assembly hole for the mating of the transmission worm (2), and the transmission worm (2) is mated in the assembly hole through the rotation of the bearing. 3. A torsional loading mechanism for a closed power gear test bench according to claim 1, characterized in that: the power input end of the transmission worm (2) has an assembly section for connecting power input, and the assembly The section is provided with a keyway, and the transmission worm (2) is connected to the power input through the keyway. 4. A torsional loading mechanism for a closed-power gear test bench according to claim 1, characterized in that: the internal splines on the worm wheel (3) are arranged coaxially with the worm wheel (3).