CN114577469B - Dynamic load fatigue test bed for engineering machinery walking winch speed reducer - Google Patents
Dynamic load fatigue test bed for engineering machinery walking winch speed reducer Download PDFInfo
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- CN114577469B CN114577469B CN202210231024.2A CN202210231024A CN114577469B CN 114577469 B CN114577469 B CN 114577469B CN 202210231024 A CN202210231024 A CN 202210231024A CN 114577469 B CN114577469 B CN 114577469B
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- bearing
- speed reducer
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- fixed
- rotating shaft
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 73
- 238000009661 fatigue test Methods 0.000 title claims abstract description 23
- 239000004519 grease Substances 0.000 claims description 13
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 230000001050 lubricating effect Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 19
- 238000010276 construction Methods 0.000 abstract description 3
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005461 lubrication Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/025—Test-benches with rotational drive means and loading means; Load or drive simulation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/007—Subject matter not provided for in other groups of this subclass by applying a load, e.g. for resistance or wear testing
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
A dynamic load fatigue test bed for a traveling hoist reducer of an engineering machine relates to the technical field of traveling hoist reducers of engineering machines, and has the advantages of compact structure, simple loading mode, high transmission efficiency and large transmission torque, and can remarkably reduce the construction cost of the test bed and effectively improve the test efficiency of batch reducers. In the dynamic load fatigue test bed of the engineering machinery walking winch speed reducer, a T-shaped groove platform is fixed on the ground, a motor support and a test support are respectively fixed on the T-shaped groove platform, a driving motor is connected with a connecting sleeve and is arranged on the motor support, one end of a connecting seat is connected with the connecting sleeve, and the other end of the connecting seat is connected with a main test speed reducer; the bearing is arranged on the rotating shaft and is arranged in the bearing seat, the outer ring of the bearing is pressed by the bearing end cover, and the bearing seat is fixed on the test bracket; the bearing retainer ring penetrates through the rotating shaft and abuts against the inner ring of the bearing, the connecting disc presses the bearing retainer ring and is fixed to the rotating shaft, and the main test speed reducer is fixed to the connecting disc.
Description
Technical Field
The invention relates to the technical field of engineering machinery walking winch reducers, in particular to a dynamic load fatigue test bed for the engineering machinery walking winch reducer, and specifically relates to a dynamic load fatigue test bed for the walking winch reducer, which has the advantages of compact structure, easiness in assembly and simplicity in replacement.
Background
At present, the walking winch speed reducer is an important component of a walking winch mechanism of engineering machinery, and a dynamic load fatigue test is required before a new product is installed so as to verify the service performance and the service life of the speed reducer.
The test bed in the prior art generally has the problems of high construction cost, low replacement efficiency, small loading capacity, non-compact structure and the like.
Specifically, torque transmission is realized through chain transmission, and the problems of large noise, large chain row number, difficult lubrication, high test bed cost, non-compact structure and the like exist; torque transmission is realized through belt transmission, the problems of low efficiency, easy belt slipping, small loading load and the like exist, and the stress condition of the speed reducer cannot be truly reflected; the gear transmission mode is used for loading, so that the problems of large noise, difficult lubrication, high test bed cost, non-compact structure and the like exist; in addition, when the existing test bed tests the speed reducers with various models and sizes, the replacement is troublesome, the efficiency is low, and the cost is high.
Disclosure of Invention
The invention aims to provide a dynamic load fatigue test bed for a traveling winch speed reducer of engineering machinery, which is transmitted through a rotating shaft, a bearing and a connecting disc, so that the dynamic load fatigue test bed has the advantages of compact structure, simple loading mode, high transmission efficiency and large transmission torque, further the construction cost of the test bed can be obviously reduced, and the test efficiency of batch speed reducers is effectively improved.
In order to achieve the above purpose, the invention adopts the following technical scheme:
A dynamic load fatigue test stand for a traveling hoist reducer of an engineering machine, comprising: the test device comprises a T-shaped groove platform, a motor support, a test support, a driving motor, a loading motor, a connecting sleeve, an adapter seat, a main test speed reducer, a connecting disc, a bearing retainer ring, a bearing end cover, a bearing seat, a bearing, a rotating shaft and a test accompanying speed reducer;
The motor bracket, the connecting sleeve, the adapter, the connecting disc, the bearing retainer ring, the bearing end cover and the bearing are symmetrically arranged about the test bracket, the loading motor and the test accompanying speed reducer are symmetrically arranged with the driving motor and the main test speed reducer, the driving motor is used for providing load for the main test speed reducer, and the loading motor is used for providing load for the test accompanying speed reducer;
The T-shaped groove platform is fixed on the ground, the motor support and the test support are respectively fixed on the T-shaped groove platform, the driving motor is connected with the connecting sleeve and is installed on the motor support, one end of the adapter is connected with the connecting sleeve, and the other end of the adapter is connected with the main test speed reducer; the bearing is arranged on the rotating shaft and is arranged in the bearing seat, the outer ring of the bearing is pressed tightly through the bearing end cover, and the bearing seat is fixed on the test bracket; the bearing retainer ring penetrates through the rotating shaft and abuts against the inner ring of the bearing, the connecting disc is pressed against the bearing retainer ring and fixed to the rotating shaft, and the main test speed reducer is fixed to the connecting disc.
The connecting sleeve is internally provided with a coupler, a first bearing and a torque sensor, and the adapter is internally provided with an input shaft, a framework oil seal, a second bearing and a temperature sensor;
The torque input by the driving motor and the loading motor is transmitted to the torque sensor through the coupler and then transmitted to the input shaft, and finally transmitted to the main test speed reducer and the accompanying test speed reducer; and the torque sensor feeds back the magnitude of the loading load in real time, and the temperature sensor feeds back the change of the oil temperature in real time.
Specifically, a grease injection oil cup and a felt ring oil seal are arranged in the bearing end cover, the grease injection oil cup is used for injecting lubricating grease into the bearing, and the felt ring oil seal is used for sealing.
Further, the loading motor is connected with the connecting sleeve and is arranged on the motor bracket, one end of the adapter is connected with the connecting sleeve, and the other end of the adapter is connected with the accompanying speed reducer; the bearing is arranged on the rotating shaft and is arranged in the bearing seat, the outer ring of the bearing is pressed by the bearing end cover and is fixed on the bearing seat, and the bearing seat is fixed on the test support; the bearing retainer ring penetrates through the rotating shaft and abuts against the inner ring of the bearing, the connecting disc is pressed against the bearing retainer ring and fixed to the rotating shaft, and the accompanying speed reducer is fixedly connected to the connecting disc.
Compared with the prior art, the dynamic load fatigue test bed for the engineering machinery walking winch speed reducer has the following advantages:
In the dynamic load fatigue test bed of the engineering machinery walking winch speed reducer, torque is transmitted through the rotating shaft, the bearing and the connecting disc, so that lossless loading of the two walking winch speed reducers can be realized, and compared with belt transmission, chain transmission and gear transmission in the prior art, the dynamic load fatigue test bed has higher transmission efficiency and larger transmission torque; besides, besides the adapter and the connecting disc, the universality of other parts is high, most of the machine types on the market can be covered, and when the test speed reducer is replaced, the test can be performed by only replacing the adapter and the connecting disc, and the installation is simple and the operation efficiency is high.
The walking winch speed reducer with each interface size corresponds to one type of adapter seat and connecting disc, and when different speed reducers are required to be tested, only the adapter seat and the connecting disc need to be replaced, and other parts do not need to be replaced.
Drawings
FIG. 1 is a schematic diagram of a dynamic load fatigue test stand of a walking winch speed reducer of engineering machinery, which is provided by the embodiment of the invention;
fig. 2 is a schematic diagram of an internal structure of a connecting sleeve in a dynamic load fatigue test stand of a walking winch reducer of an engineering machine, which is provided by the embodiment of the invention;
Fig. 3 is a schematic diagram of an internal structure of a adapter seat of a dynamic load fatigue test bed of a walking winch reducer of an engineering machine, which is provided by the embodiment of the invention;
Fig. 4 is a schematic diagram of an internal structure of a bearing end cover in a dynamic load fatigue test stand of a walking winch reducer of an engineering machine, which is provided by the embodiment of the invention.
Reference numerals:
a 1-T-shaped trough platform; 2-motor support; 3-test rack; 4-driving a motor; 5-loading motor; 6-connecting the sleeve; 7-a adapter; 8-a main test speed reducer; 9-connecting discs; 10-a bearing retainer ring; 11-a bearing end cap; 12-bearing seats; 13-bearing; 14-rotating shaft; 15-accompany test speed reducer;
61-coupling; 62-a first bearing; 63-a torque sensor; 71-an input shaft; 72-skeleton oil seal; 73-a second bearing; a 74-temperature sensor;
111-a grease filling oil cup; 112-felt ring oil seal.
Detailed Description
In order to facilitate understanding, the dynamic load fatigue test stand for the engineering machinery walking winch speed reducer provided by the embodiment of the invention is described in detail below with reference to the accompanying drawings of the specification, has the advantages of compact structure, wide applicable model range, simplicity in installation and high reliability, and can truly reflect the service performance of the speed reducer.
The embodiment of the invention provides a dynamic load fatigue test stand of a walking winch speed reducer of engineering machinery, which is shown in fig. 1 and comprises the following components: the test device comprises a T-shaped groove platform 1, a motor bracket 2, a test bracket 3, a driving motor 4, a loading motor 5, a connecting sleeve 6, an adapter 7, a main test speed reducer 8, a connecting disc 9, a bearing retainer 10, a bearing end cover 11, a bearing seat 12, a bearing 13, a rotating shaft 14 and a test accompanying speed reducer 15;
The motor bracket 2, the connecting sleeve 6, the adapter seat 7, the connecting disc 9, the bearing retainer ring 10, the bearing end cover 11 and the bearing 13 are symmetrically arranged about the test bracket 3, the loading motor 5 and the accompanying speed reducer 15 are symmetrically arranged with the driving motor 4 and the main speed reducer 8, the driving motor 4 is used for providing load for the main speed reducer 8, and the loading motor 5 is used for providing load for the accompanying speed reducer 15;
The T-shaped groove platform 1 is fixed on the ground, the motor bracket 2 and the test bracket 3 are respectively fixed on the T-shaped groove platform 1 through screws and T-shaped nuts, the driving motor 4 and the connecting sleeve 6 are connected through screws and are installed on the motor bracket 2, one end of the adapter seat 7 is connected with the connecting sleeve 6, and the other end of the adapter seat is connected with the main test speed reducer 8; the bearing 13 is arranged on the rotating shaft 14 and is arranged in the bearing seat 12, the outer ring of the bearing 13 is pressed by the bearing end cover 11 and is fixed on the bearing seat 12 by a screw, and the bearing seat 12 is fixed on the test bracket 3 by a screw; the bearing retainer ring 10 passes through the rotating shaft 14 and abuts against the inner ring of the bearing 13, the connecting disc 9 presses the bearing retainer ring 10 and is fixed on the rotating shaft 14 through screws, and the main test speed reducer 8 is fixed on the connecting disc 9 through screws.
Compared with the prior art, the dynamic load fatigue test bed for the engineering machinery walking winch speed reducer has the following advantages:
In the dynamic load fatigue test bed of the engineering machinery walking winch speed reducer, which is provided by the embodiment of the invention, torque is transmitted through the rotating shaft 14, the bearing 13 and the connecting disc 9, so that the lossless loading of the two walking winch speed reducers can be realized, and compared with the belt transmission, the chain transmission and the gear transmission in the prior art, the transmission efficiency is higher, and the transmission torque is larger; besides, besides the adapter seat 7 and the connecting disc 9, the universality of other parts is high, most of the models on the market can be covered, and when the test speed reducer is replaced, the test can be performed by only replacing the adapter seat 7 and the connecting disc 9, and the installation is simple and the operation efficiency is high.
As shown in fig. 2, the coupling sleeve 6 may be provided therein with a coupling 61, a first bearing 62, and a torque sensor 63, and as shown in fig. 3, the adaptor 7 may be provided therein with an input shaft 71, a frame oil seal 72, a second bearing 73, and a temperature sensor 74;
during testing, the torque input by the driving motor 4 and the loading motor 5 can be transmitted to the torque sensor 63 through the coupling 61, then transmitted to the input shaft 71, and finally transmitted to the main test speed reducer 8 and the accompanying test speed reducer 15; the torque sensor 63 can feed back the magnitude of the load in real time, and the temperature sensor 74 can feed back the change in the oil temperature in real time.
Specifically, as shown in fig. 4, the bearing end cover 11 may be provided with a grease filling cup 111 and a felt seal 112, and the grease filling cup 111 may be used for filling the bearing 13 with grease, and the felt seal 112 may be used for sealing; the structure is simple in lubrication mode, the test bed can have good lubrication conditions only by filling the bearing 13 with lubricating grease through the grease filling oil cup 111 at regular intervals, and meanwhile, the sealing performance is good through the felt ring oil seal 112, and the bearing and the lubricating grease cannot be polluted by the external environment.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (2)
1. The utility model provides a engineering machine tool walking hoist reducer moves year fatigue test platform which characterized in that includes: the test device comprises a T-shaped groove platform, a motor support, a test support, a driving motor, a loading motor, a connecting sleeve, an adapter seat, a main test speed reducer, a connecting disc, a bearing retainer ring, a bearing end cover, a bearing seat, a bearing, a rotating shaft and a test accompanying speed reducer;
The motor bracket, the connecting sleeve, the adapter, the connecting disc, the bearing retainer ring, the bearing end cover and the bearing are symmetrically arranged about the test bracket, the loading motor and the test accompanying speed reducer are symmetrically arranged with the driving motor and the main test speed reducer, the driving motor is used for providing load for the main test speed reducer, and the loading motor is used for providing load for the test accompanying speed reducer;
The T-shaped groove platform is fixed on the ground, the motor support and the test support are respectively fixed on the T-shaped groove platform, the driving motor is connected with the connecting sleeve and is installed on the motor support, one end of the adapter is connected with the connecting sleeve, and the other end of the adapter is connected with the main test speed reducer; the bearing is arranged on the rotating shaft and is arranged in the bearing seat, the outer ring of the bearing is pressed by the bearing end cover and is fixed on the bearing seat, and the bearing seat is fixed on the test support; the bearing retainer ring penetrates through the rotating shaft and abuts against the inner ring of the bearing, the connecting disc is pressed against the bearing retainer ring and is fixed on the rotating shaft, and the main test speed reducer is fixed on the connecting disc;
The connecting sleeve is internally provided with a coupler, a first bearing and a torque sensor, and the adapter is internally provided with an input shaft, a framework oil seal, a second bearing and a temperature sensor; the torque input by the driving motor and the loading motor is transmitted to the torque sensor through the coupler and then transmitted to the input shaft, and finally transmitted to the main test speed reducer and the accompanying test speed reducer; the torque sensor feeds back the magnitude of the loading load in real time, and the temperature sensor feeds back the change of the oil temperature in real time;
The loading motor is connected with the connecting sleeve and is arranged on the motor bracket, one end of the adapter is connected with the connecting sleeve, and the other end of the adapter is connected with the accompanying speed reducer; the bearing is arranged on the rotating shaft and is arranged in the bearing seat, the outer ring of the bearing is pressed by the bearing end cover and is fixed on the bearing seat, and the bearing seat is fixed on the test support; the bearing retainer ring penetrates through the rotating shaft and abuts against the inner ring of the bearing, the connecting disc is pressed against the bearing retainer ring and fixed to the rotating shaft, and the accompanying speed reducer is fixed to the connecting disc.
2. The dynamic load fatigue test bed of the engineering machinery walking winch speed reducer is characterized in that a grease injection oil cup and a felt ring oil seal are arranged in the bearing end cover, the grease injection oil cup is used for injecting lubricating grease into the bearing, and the felt ring oil seal is used for sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210231024.2A CN114577469B (en) | 2022-03-10 | 2022-03-10 | Dynamic load fatigue test bed for engineering machinery walking winch speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210231024.2A CN114577469B (en) | 2022-03-10 | 2022-03-10 | Dynamic load fatigue test bed for engineering machinery walking winch speed reducer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114577469A CN114577469A (en) | 2022-06-03 |
| CN114577469B true CN114577469B (en) | 2024-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210231024.2A Active CN114577469B (en) | 2022-03-10 | 2022-03-10 | Dynamic load fatigue test bed for engineering machinery walking winch speed reducer |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102768116A (en) * | 2012-07-03 | 2012-11-07 | 索特传动设备有限公司 | General reducer test bed |
| CN203324008U (en) * | 2012-07-31 | 2013-12-04 | 大连理工大学（徐州）工程机械研究中心 | Test stand for engineering machinery walking winding speed reducer |
| CN205620119U (en) * | 2015-12-15 | 2016-10-05 | 徐州重型机械有限公司 | Walking speed reducer test bench system |
| CN110333069A (en) * | 2019-05-31 | 2019-10-15 | 陕西法士特汽车传动集团有限责任公司 | A kind of driving speed reducer pilot system |
| KR20210101037A (en) * | 2020-02-07 | 2021-08-18 | 엘지전자 주식회사 | Apparatus for Testing Air Foil Bearings |
| CN113776823A (en) * | 2021-08-17 | 2021-12-10 | 中国船舶重工集团衡远科技有限公司 | Reducer loading test stand |
-
2022
- 2022-03-10 CN CN202210231024.2A patent/CN114577469B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102768116A (en) * | 2012-07-03 | 2012-11-07 | 索特传动设备有限公司 | General reducer test bed |
| CN203324008U (en) * | 2012-07-31 | 2013-12-04 | 大连理工大学（徐州）工程机械研究中心 | Test stand for engineering machinery walking winding speed reducer |
| CN205620119U (en) * | 2015-12-15 | 2016-10-05 | 徐州重型机械有限公司 | Walking speed reducer test bench system |
| CN110333069A (en) * | 2019-05-31 | 2019-10-15 | 陕西法士特汽车传动集团有限责任公司 | A kind of driving speed reducer pilot system |
| KR20210101037A (en) * | 2020-02-07 | 2021-08-18 | 엘지전자 주식회사 | Apparatus for Testing Air Foil Bearings |
| CN113776823A (en) * | 2021-08-17 | 2021-12-10 | 中国船舶重工集团衡远科技有限公司 | Reducer loading test stand |
Non-Patent Citations (1)
| Title |
|---|
| 液压马达减速器工况模拟试验台设计研究;谢燕琴 等;机床与液压;20180428;第46卷(第8期);70-73 * |
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| CN114577469A (en) | 2022-06-03 |
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