CN221056047U - Reduction gear life test board considering impact load - Google Patents
Reduction gear life test board considering impact load Download PDFInfo
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- CN221056047U CN221056047U CN202322512453.XU CN202322512453U CN221056047U CN 221056047 U CN221056047 U CN 221056047U CN 202322512453 U CN202322512453 U CN 202322512453U CN 221056047 U CN221056047 U CN 221056047U
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- speed reducer
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- 238000012360 testing method Methods 0.000 title claims abstract description 29
- 230000009467 reduction Effects 0.000 title claims description 3
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 56
- 230000003287 optical effect Effects 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims abstract description 5
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- 238000009434 installation Methods 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000035939 shock Effects 0.000 claims 5
- 230000008093 supporting effect Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005058 metal casting Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000002633 protecting effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 208000016261 weight loss Diseases 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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Abstract
The utility model relates to a reducer life test board considering impact load, which is characterized in that: the support is fixed at the upper end of the base, a mounting hole is formed in a vertical plate at the front side of the support, and the shell at the output end of the tested speed reducer is matched with the mounting hole in a positioning manner; the front end of the flange is matched with the rear end of the tested speed reducer in a positioning way, and the flange and the tested speed reducer are fixedly connected with the bracket through screws; the motor output end shell is matched with the rear end of the flange in a positioning way and fixedly connected with the flange through screws; the rear end of the load disc is matched with the front end of the output disc of the tested speed reducer in a positioning way and is fixedly connected with the front end of the load disc through a screw, the central optical axis of the front end of the load disc is rotationally connected with one end of a swing arm, and the other end of the swing arm is connected with a counterweight disc; a plurality of pairs of threaded holes are symmetrically arranged on two sides of a central optical axis on the tray body; the force application stand column and the force bearing stand column are connected with one pair of threaded holes; in the process that the swing arm rotates from a low point to a high point, the swing arm is contacted and matched with the force application stand column; when the swing arm rotates to the low point position, the swing arm is in impact contact with the stressed upright post. The utility model can better reflect the actual service life of the speed reducer.
Description
Technical Field
The utility model belongs to the technical field of fatigue life of a speed reducer, and particularly relates to a speed reducer life test board considering impact load.
Background
The fatigue life of the speed reducer is one of key indexes for measuring the performance of the speed reducer, and the conventional testing means is to build a load table for life test. In actual use of the speed reducer, the load is unstable, and often the abnormal conditions such as impact and vibration are accompanied, but the conventional load table cannot be matched with the actual working condition due to constant load, so that the actual service life of the speed reducer cannot be reflected well due to the test service life.
Disclosure of utility model
The utility model aims to overcome the defects of the prior art and provides the service life test board of the speed reducer, which is convenient in structure detection and test, can adjust the impact load and meet the requirements of different working condition tests and is capable of considering the impact load.
The above object of the present utility model is achieved by the following technical solutions:
a reducer life test board considering impact load comprises a base, a bracket, a motor, a flange, a reducer to be tested, a load disc, a swing arm, a force application stand column, a stress stand column and a counterweight disc;
The support is fixed at the upper end of the base, a mounting hole is formed in a front side vertical plate of the support, and an output end shell of the tested speed reducer is in positioning fit with the mounting hole in the support; the front end of the flange is in positioning fit with the rear end of the tested speed reducer, and the flange and the tested speed reducer are fixedly connected with a front side vertical plate of the bracket through screws; the output end shell of the motor is matched with the rear end of the flange in a positioning way, and is fixedly connected with the flange through an installation screw;
The rear end of the load disc is in positioning fit with the front end of the output disc of the tested speed reducer and is fixedly connected with the front end of the load disc through a screw, the central optical axis of the front end of the load disc is rotatably connected with one end of a swing arm through a bearing, the other end of the swing arm is a free end, and the other end of the swing arm is connected with a detachable counterweight disc; a plurality of pairs of threaded holes are symmetrically arranged on two sides of the central optical axis on the disc body, and the distances between the plurality of pairs of threaded holes and the central line of the load disc are sequentially increased; the force application stand column and the force bearing stand column are selectively connected with a pair of threaded holes in a forward extending mode, so that the force application stand column and the force bearing stand column are arranged at 180 degrees at the front end of the load disc; when the swing arm is pushed to rotate from a low point to a high point, the swing arm is in contact fit with the force application upright post; when the swing arm rotates to the low point position, the swing arm is in collision contact with the stressed upright post.
And the bracket is a welded metal piece and consists of a bottom plate, the front side vertical plate arranged at the upper end of the bottom plate, and two reinforcing rib plates which are connected with the bottom plate and the front vertical plate.
The flange is a hard aluminum alloy piece, a rear interface matched with the shape of the shell part of the output end of the motor is arranged at the rear end of the flange, a front interface matched with the shape of the shell part of the input end of the speed reducer to be tested is arranged at the front end of the flange, and an O-shaped ring for realizing sealing is arranged at the front interface.
The load disc comprises a disc body, and a positioning spigot which can form positioning fit with the output disc of the speed reducer is arranged in the center of the rear end of the disc body; the center optical axis is arranged in the center of the front end of the disc body; weight reducing holes are symmetrically arranged on two sides of the threaded hole on the tray body.
And the force application stand column and the force bearing stand column adopt the same structural form and are composed of a metal main body and an outer rubber layer, wherein the rear end of the metal main body is provided with an external thread section matched with a threaded hole on a load disc, and the outer rubber layer is fixedly wrapped on a non-thread section of the metal main body.
And one end of the swing arm is provided with an inner hole matched with the bearing, the other side of the swing arm is provided with a threaded hole, and the center of the threaded hole and the center of the counterweight disc is provided with a screw, so that the counterweight disc is fixed on the front side of the other end of the swing arm.
The utility model has the advantages and positive effects that:
1. According to the utility model, the load assembly is formed by the load disc, the swing arm, the force application stand column, the bearing and the counterweight disc at the output disc end of the speed reducer to be tested, so that the speed reducer is subjected to periodic alternating load and impact load in the whole operation process, the condition conforming to the actual working condition is achieved, and the actual service life of the speed reducer can be better reflected through the test board.
2. According to the utility model, the force application stand column and the force bearing stand column are arranged in the pair of threaded holes with different distances from the center position on the load disc, so that the impact load size can be adjusted, and the test personnel can meet the test requirements of different working conditions.
3. The utility model can adjust the impact load by changing the installation number of the counterweight plates, and test staff can meet the test requirements of different working conditions.
4. According to the utility model, the rubber layers are wrapped outside the force application stand column and the force bearing stand column, so that good buffering and protecting effects can be provided.
In conclusion, the actual working condition of the speed reducer can be well reflected through reasonable setting of the test conditions, and the test requirement on the complex working condition of the speed reducer can be met.
Drawings
FIG. 1 is a cross-sectional view of the present utility model;
Fig. 2 is a perspective view of the present utility model.
Detailed Description
The structure of the present utility model will be further described by way of examples with reference to the accompanying drawings. It should be noted that the present embodiments are illustrative and not restrictive.
Referring to fig. 1-2, the invention relates to a service life test board of a speed reducer considering impact load, which comprises the following steps: the device comprises a base 1, a bracket 2, a motor 3, a flange 4, a measured speed reducer 5, a load disc 6, a swing arm 8, a force application upright post 12, a force bearing upright post 7, a bearing 9 and a weight disc 10. The load disc, the swing arm, the force application stand column, the force bearing stand column, the bearing and the counterweight disc form a load assembly.
The base is a metal casting and is fixed on the ground through bolts, so that a supporting effect is provided for the whole test bench, and the upper end of the base is a supporting bench.
The support is a welded metal piece and is used for realizing the installation of the flange, the motor and the tested speed reducer and the function of supporting the load component. The reinforcing rib plate mainly comprises a bottom plate, a front side vertical plate arranged at the upper end of the bottom plate and left and right reinforcing rib plates for connecting the bottom plate and the front side vertical plate. The vertical plate is provided with a mounting hole for being matched with an external interface of the output end of the speed reducer, and the periphery of the mounting hole on the vertical plate is provided with a threaded hole for realizing the fixed mounting of the speed reducer to be tested and the flange.
The flange is a hard aluminum alloy piece, a rear interface matched with the shape of the output end shell part of the motor is arranged at the rear end of the flange, a front interface matched with the shape of the input end shell part of the speed reducer to be tested is arranged at the front end of the flange, and an O-shaped ring is arranged at the front interface to ensure sealing. Screw mounting holes which are in one-to-one correspondence with screw wearing holes on the speed reducer to be tested are arranged on the periphery of the rear end interface on the flange.
The load disc is a machined metal component and comprises a disc body, a positioning spigot which can form positioning fit with the speed reducer output disc is arranged in the center of the rear end of the disc body, and screw penetrating holes which are in one-to-one correspondence with threaded holes in the speed reducer output disc are formed in the load disc along the circumferential direction. The center of the front end of the disc body is provided with a central optical axis which extends forwards and outwards and is used for installing a bearing to realize rotary connection with one end of the swing arm. The two sides of the disc body, which are positioned on the central optical axis, are symmetrically provided with a plurality of pairs of threaded holes, and the distances between the plurality of pairs of threaded holes and the central line of the load disc are sequentially increased, so that the relative installation of the force application stand column and the force bearing stand column is realized, and the adjustment of the impact load is realized by adjusting the installation distance between the force application stand column and the force bearing stand column and the central line of the load disc. In addition, the two sides of the threaded hole on the disk body are symmetrically provided with weight reducing holes, so that weight reduction treatment of the disk body is realized.
The force application stand column and the force bearing stand column adopt the same structural form and are composed of a metal main body and an outer wrapping rubber layer, an external thread section matched with a threaded hole on a load disc is arranged at the rear end of the metal main body, and the outer wrapping rubber layer is wrapped and fixed on a non-thread section of the metal main body. The force application stand column and the force bearing stand column adopt the structural form, and can provide good buffering and protection effects.
The swing arm is a cuboid-like metal processing component, one end of the swing arm is provided with an inner hole matched with the bearing, and the other end of the swing arm is provided with a threaded hole for installing the counterweight disc.
The support is arranged on the supporting table of the base, and the support and the supporting table are fixedly connected through bolts. The bracket forms positioning fit with an external interface of the output end of the speed reducer to be tested through the mounting hole; the flange forms positioning fit with the input end shell of the speed reducer to be tested through the front interface, and the flange and the speed reducer to be tested form fixed connection with the bracket through a plurality of bolts 11 arranged along the circumference. The flange forms positioning fit with the output end shell of the motor through the rear interface, and the motor is fixed at the rear end of the flange through screws.
The load disc is matched with an output disc of the speed reducer to be tested in a positioning way through a positioning spigot, the load disc and the output disc are fixedly connected through a screw, and one end of the swing arm, provided with an inner hole, is connected with a central optical axis on the load disc in a relatively rotatable way through a bearing. The swing arm and the load disc and the bearing are axially positioned through a retainer ring clamped on the central optical axis when being installed; the counterweight disc is fixedly connected to one end of the swing arm provided with the threaded hole through a screw.
The force application column and the force application column are arranged in a pair of threaded holes on the load disc in a selectable manner through the external thread section, and the force application column is used for pushing the swing arm to rotate from a low point to a high point in the running process of the speed reducer to be tested; the stress upright post is used for bearing the impact of the swing arm when the swing arm rotates from a high point to a low point under the action of weight, transmitting the impact force to the speed reducer through the load disc, and constructing a load working condition of impact load.
The method for testing the fatigue life of the speed reducer by adopting the speed reducer life test bench considering the impact load comprises the following steps:
1. the speed reducer to be tested is arranged on the test bench;
2. According to the actual application working condition of the speed reducer, the impact load is adjusted by adjusting the positions of the force application stand column and the force bearing stand column from the center of the load disc and the weight of the counterweight disc;
3. The motor is started, the flange, the speed reducer to be tested and the load disc are driven to coaxially rotate, when the force application column on the load disc rotates to a position contacted with the swing arm, the swing arm is pushed to rotate from a low point to a high point, after the swing arm rotates to the high point, under the action of weight, the swing arm rapidly rotates from the high point to the low point, impact force is applied to the force-bearing column at the low point, the impact force is transmitted to the speed reducer to be tested through the load disc, impact load is formed, periodic alternating load and impact load of the speed reducer in the whole operation process are realized, the condition consistent with actual working conditions is achieved, and the actual service life of the speed reducer can be better reflected through the test board.
Although the embodiments of the present utility model and the accompanying drawings have been disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit of the utility model and the appended claims, and therefore the scope of the utility model is not limited to the embodiments and the disclosure of the drawings.
Claims (6)
1. The utility model provides a reduction gear life-span testboard of considering impact load which characterized in that: the device comprises a base, a bracket, a motor, a flange, a tested speed reducer, a load disc, a swing arm, a force application stand column, a stress stand column and a counterweight disc;
The support is fixed at the upper end of the base, a mounting hole is formed in a front side vertical plate of the support, and an output end shell of the tested speed reducer is in positioning fit with the mounting hole in the support; the front end of the flange is in positioning fit with the rear end of the tested speed reducer, and the flange and the tested speed reducer are fixedly connected with a front side vertical plate of the bracket through screws; the output end shell of the motor is matched with the rear end of the flange in a positioning way, and is fixedly connected with the flange through an installation screw;
The rear end of the load disc is in positioning fit with the front end of the output disc of the tested speed reducer, and is fixedly connected with the front end of the output disc through a screw; the front end central optical axis of the load disc is rotatably connected with one end of a swing arm through a bearing, the other end of the swing arm is a free end, and the other end of the swing arm is connected with a detachable counterweight disc; a plurality of pairs of threaded holes are symmetrically arranged on two sides of the central optical axis on the disc body, and the distances between the plurality of pairs of threaded holes and the central line of the load disc are sequentially increased; the force application stand column and the force bearing stand column are selectively connected with a pair of threaded holes in a forward extending mode, so that the force application stand column and the force bearing stand column are arranged at 180 degrees at the front end of the load disc; in the process that the swing arm rotates from a low point to a high point, the swing arm is in contact fit with the force application upright post; when the swing arm rotates to the low point position, the swing arm is in collision contact with the stressed upright post.
2. The shock load considered decelerator life test stand of claim 1, wherein: the support is a welded metal piece and consists of a bottom plate, a front side vertical plate arranged at the upper end of the bottom plate, and a left reinforcing rib plate and a right reinforcing rib plate which are connected with the bottom plate and the front vertical plate.
3. The shock load considered decelerator life test stand of claim 1, wherein: the flange is a hard aluminum alloy piece, a rear interface matched with the shape of the output end shell part of the motor is arranged at the rear end of the flange, a front interface matched with the shape of the input end shell part of the speed reducer to be tested is arranged at the front end of the flange, and an O-shaped ring for realizing sealing is arranged at the front interface.
4. The shock load considered decelerator life test stand of claim 1, wherein: the load disc comprises a disc body, and a positioning spigot which can form positioning fit with the output disc of the speed reducer is arranged in the center of the rear end of the disc body; the center optical axis is arranged in the center of the front end of the disc body; weight reducing holes are symmetrically arranged on two sides of the threaded hole on the tray body.
5. The shock load considered decelerator life test stand of claim 1, wherein: the force application stand column and the force bearing stand column adopt the same structural form and are composed of a metal main body and an outer wrapping rubber layer, an external thread section matched with a threaded hole on a load disc is arranged at the rear end of the metal main body, and the outer wrapping rubber layer is wrapped and fixed on a non-thread section of the metal main body.
6. The shock load considered decelerator life test stand of claim 1, wherein: an inner hole matched with the bearing is machined at one end of the swing arm, a threaded hole is machined at the other side of the swing arm, and a screw is installed at the center of the threaded hole and the center of the counterweight disc, so that the counterweight disc is fixed at the front side of the other end of the swing arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322512453.XU CN221056047U (en) | 2023-09-15 | 2023-09-15 | Reduction gear life test board considering impact load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322512453.XU CN221056047U (en) | 2023-09-15 | 2023-09-15 | Reduction gear life test board considering impact load |
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| Publication Number | Publication Date |
|---|---|
| CN221056047U true CN221056047U (en) | 2024-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322512453.XU Active CN221056047U (en) | 2023-09-15 | 2023-09-15 | Reduction gear life test board considering impact load |
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| Country | Link |
|---|---|
| CN (1) | CN221056047U (en) |
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2023
- 2023-09-15 CN CN202322512453.XU patent/CN221056047U/en active Active
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