CN110243588B - Rotary speed reducer test bench and system - Google Patents
Rotary speed reducer test bench and system Download PDFInfo
- Publication number
- CN110243588B CN110243588B CN201910469920.0A CN201910469920A CN110243588B CN 110243588 B CN110243588 B CN 110243588B CN 201910469920 A CN201910469920 A CN 201910469920A CN 110243588 B CN110243588 B CN 110243588B
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- speed reducer
- rotary speed
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- outer ring
- flat plate
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 97
- 238000012360 testing method Methods 0.000 title claims abstract description 71
- 230000000712 assembly Effects 0.000 claims description 16
- 238000000429 assembly Methods 0.000 claims description 16
- 239000004519 grease Substances 0.000 claims description 13
- 238000011161 development Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Classifications
-
- 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
Abstract
The invention relates to a test bench, in particular to a test bench and a system of a rotary speed reducer. The first aim of the invention is to solve the problem of poor compatibility of the test bed of the rotary speed reducer, and provide the test bed of the rotary speed reducer; the second purpose is to solve the problems of long test period, low efficiency and poor compatibility of the test system of the rotary speed reducer, and provide the test system of the rotary speed reducer. The four support frames of the rack are respectively fixed on four corners of the support plate to form a vacancy; strip holes are respectively arranged at the four corners of the supporting flat plate; an outer ring is arranged in the empty space, an inner gear ring is meshed with an output shaft of the rotary speed reducer assembly, and the inner gear ring is arranged in the outer ring; the plurality of rotary speed reducer mounting areas on the support plate comprise a central hole and strip-shaped flange mounting holes which are uniformly distributed on the outer part of the central hole along the circumferential direction; the support frame is fixed on the ground through the rag bolt, and the rag bolt via hole is rectangular hole. The system includes a gantry, a plurality of hydraulic motors, and a plurality of sensors.
Description
Technical Field
The invention relates to a test bench, in particular to a test bench and a system of a rotary speed reducer.
Background
Along with the steady increase of the sales volume of engineering machinery, all host factories and transmission factories in China aim at independently developing the rotary speed reducer, but most of the manufacturers neglect or entrust the test bench construction and test parts of the rotary speed reducer to foreign companies, so that the development period of the rotary speed reducer is prolonged to a great extent, and the development cost is increased.
The test bed of the existing rotary speed reducer provides power for the rotary speed reducer to be tested through a hydraulic motor, meanwhile, an accompanying test machine with a specific weight inertia flywheel disc serving as a load is needed to simulate the weight of the excavator body, and then frequent starting, braking and reversing operations are carried out to test the durability of the speed reducer. The method can only test one rotary speed reducer at a time, and has long test period and low efficiency. One test bench can only finish the test of one type of rotary speed reducer, and has great limitation on test objects and poor compatibility. At present, a rotary speed reducer test bed can only meet the test requirements of rotary speed reducers of corresponding types, if another type of rotary speed reducer needs to be developed, the test bed needs to be redeveloped, time and cost are wasted, the test operation is easy to be disordered, and huge manpower and material resources are wasted after management.
Disclosure of Invention
The first aim of the invention is to solve the technical problem of poor compatibility of the existing rotary speed reducer test bed, and provide a rotary speed reducer test bed;
the second aim is to solve the technical problems of long test period, low efficiency and poor compatibility of the existing rotary speed reducer test system and provide a rotary speed reducer test system.
In order to solve the first technical problem, the technical solution provided by the present invention is as follows:
the utility model provides a gyration speed reducer test bench which characterized in that: comprises a supporting flat plate, a supporting frame, an outer ring, an inner gear ring and positioning screws;
the four supporting frames are respectively fixed on four corners of the supporting flat plate, and a vacancy is formed between the supporting flat plate and the supporting frames;
strip holes are respectively arranged at the four corners of the supporting flat plate;
the outer ring is positioned in the empty space, the positioning screw penetrates through the strip hole of the supporting plate to be fixed on the outer wall of the outer ring, and the outer wall of the outer ring is fixed on the four supporting frames;
different areas on the inner side of the inner gear ring are used for respectively engaging with shaft teeth of output shafts of different rotary speed reducer assemblies to be tested, and the inner gear ring is coaxially arranged in the outer ring and can rotate freely in the same plane relative to the outer ring;
the support plate is provided with a plurality of to-be-detected rotary speed reducer mounting areas, and each to-be-detected rotary speed reducer mounting area comprises a center hole and flange mounting holes which are arranged outside the center hole and uniformly distributed along the circumferential direction;
the flange mounting holes are strip holes;
the support frame is fixed on the ground through the rag bolt, and rag bolt via holes on the support frame are also rectangular holes.
Further, a grease box is further arranged at the lower end of the supporting plate, corresponding to the output shaft of each to-be-detected rotary speed reducer assembly, and the output shaft is immersed in grease in the grease box.
Further, two installation areas of the rotary speed reducer to be detected are arranged on the supporting plate.
In order to solve the second technical problem, the technical solution provided by the present invention is as follows:
the rotary speed reducer test system based on the rotary speed reducer test bed is characterized in that: also comprises a plurality of hydraulic motors;
one end of one hydraulic motor is externally connected with a hydraulic station control center, and the other end of the hydraulic motor drives a rotary speed reducer assembly to be tested;
one end of each other hydraulic motor is externally connected with a hydraulic station control center, and the other end of each other hydraulic motor is connected with a rotary speed reducer assembly to be tested to provide load for the rotary speed reducer assembly to be tested;
a flow measuring device is arranged at each hydraulic motor, a torque sensor and a rotating speed sensor are arranged at the position of an output shaft of each rotary speed reducer assembly to be tested, and a temperature sensor is arranged at the position of an oil drain pipe of each rotary speed reducer assembly to be tested;
the flow measuring device, the torque sensor, the rotating speed sensor and the temperature sensor are all connected with the hydraulic station control center.
Compared with the prior art, the invention has the following beneficial effects:
1. the flange mounting holes and the positioning screw through holes on the support plate of the test bed of the rotary speed reducer and the anchor bolt through holes on the support frame are strip holes, so that the test requirements of the rotary speed reducer assembly to be tested with different tonnages (specifications) can be met, the compatibility is good, the operation is simple, the time and the cost are saved, and the management is easy;
2. the support flat plate of the test bed of the rotary speed reducer is provided with a plurality of installation areas of the rotary speed reducer to be tested, and a test can be completed for a plurality of rotary speed reducer assemblies to be tested through one round of test;
3. the test system of the rotary speed reducer can simultaneously provide power or load for the forward and reverse rotation of a plurality of rotary speed reducer assemblies to be tested, each two rotary speed reducer assemblies to be tested can be test accompanying machines, the test accompanying machines which are provided with the inertia flywheel disc with specific weight as the load do not need to be specially arranged, the test period of the rotary speed reducer assemblies to be tested is effectively shortened, the test efficiency is improved, and the test cost is reduced; the load provided by the hydraulic motor for the driven rotary speed reducer assembly instead of the inertia flywheel disc is controllable, and the hydraulic motor can be set according to specific requirements;
4. the test bed for the rotary speed reducer provided by the invention has the advantages that a plurality of rotary speed reducer assemblies to be tested are relatively static in test, the annular gear rotates, the space required by the test is small, and the structure is simple.
Drawings
FIG. 1 is a schematic diagram of an embodiment of a testing system for a rotary speed reducer according to the present invention, in which two rotary speed reducer assemblies to be tested are installed;
FIG. 2 is a schematic diagram of a support rack structure of the test rack for the rotary speed reducer, wherein the four corners of a support plate are respectively provided with strip holes for fixing the outer ring of the rotary support, the support plate is also provided with two to-be-tested rotary speed reducer mounting areas, and each to-be-tested rotary speed reducer mounting area comprises a central hole and strip flange mounting holes which are arranged outside the central hole and uniformly distributed along the circumferential direction;
FIG. 3 is a schematic view of a slewing bearing structure of a testing stand of a slewing speed reducer, comprising an outer ring, an inner gear ring and balls arranged between the outer ring and the inner gear ring, wherein different areas on the inner side of the inner gear ring are respectively meshed with shaft teeth of an output shaft of two slewing speed reducer assemblies to be tested;
reference numerals illustrate:
1-a support plate; 2-supporting frames; 3-an outer ring; 4-an inner gear ring; 5-positioning screws; 6-a rotary speed reducer assembly to be detected; 7-anchor bolts; 8-a grease box; 9-hydraulic motor.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, the test bed of the rotary speed reducer comprises a support flat plate 1, a support frame 2, an outer ring 3, an inner gear ring 4 and a positioning screw 5; the four supporting frames 2 are respectively fixed on four corners of the supporting flat plate 1, and a gap is formed between the supporting flat plate 1 and the supporting frames 2; as shown in fig. 2, elongated holes are respectively formed in four corners of the support plate 1; the outer ring 3 is positioned in the empty space, the positioning screw 5 penetrates through the strip hole of the supporting flat plate 1 to be fixed on the outer wall of the outer ring 3, and the outer wall of the outer ring 3 is fixed on the four supporting frames 2; as shown in fig. 3, different areas on the inner side of the inner gear ring 4 are used for respectively engaging with shaft teeth of output shafts of different rotary speed reducer assemblies 6 to be tested, and the inner gear ring 4 is coaxially arranged in the outer ring 3 and can rotate freely in the same plane relative to the outer ring 3; balls are arranged between the outer ring and the inner ring, and the balls and the inner ring form a rotary bearing together; the support plate 1 is provided with a plurality of to-be-detected rotary speed reducer mounting areas, and the number of the to-be-detected rotary speed reducer mounting areas is preferably two, and each to-be-detected rotary speed reducer mounting area comprises a central hole and flange mounting holes which are arranged outside the central hole and uniformly distributed along the circumferential direction; the flange is installed the holes are strip holes; the support frame 2 is fixed on the ground through the foundation bolts 7, and foundation bolt through holes in the support frame 2 are also strip holes, so that the translation of the support frame 2 on the ground can be realized, and the requirement of testing the annular gear 4 with different sizes is met.
The lower end of the support flat plate 1 is also welded with a grease box 8 corresponding to the output shaft of each rotary speed reducer assembly 6 to be tested, and the output shaft is immersed in grease in the grease box 8. Each grease cartridge 8 forms a closed space with the support plate 1. And the space is filled with lubricating grease, so that the actual working condition is simulated, and the grease lubrication of the output shaft of the rotary speed reducer assembly 6 to be tested and the inner gear ring 4 under the special working condition is realized.
The invention also provides a rotary speed reducer test system based on the rotary speed reducer test bed, which further comprises a plurality of hydraulic motors 9; one end of one hydraulic motor 9 is externally connected with a hydraulic station control center, the other end of the hydraulic motor 9 drives a rotary speed reducer assembly 6 to be tested, the rotary speed reducer assembly 6 to be tested receives torque transmitted by the hydraulic motor 9, and power output is realized through engagement of shaft teeth on an output shaft of the rotary speed reducer assembly 6 to be tested and the inner gear ring 4, namely, the power of the whole test bed is sourced from the hydraulic station control center, and the hydraulic motor 9 is controlled by the hydraulic station control center to output power required by flow; one end of each other hydraulic motor 9 is externally connected with a hydraulic station control center, the other end of each other hydraulic motor is connected with one to-be-tested rotary speed reducer assembly 6 to provide load for the to-be-tested rotary speed reducer assembly, namely, the inner gear ring 4 drives the output shafts of the other to-be-tested rotary speed reducer assemblies 6 to rotate, and the hydraulic motors 9 provide test load for the to-be-tested rotary speed reducer assemblies 6. A flow measuring device is arranged at each hydraulic motor 9, a torque sensor and a rotating speed sensor are arranged at the position of an output shaft of each rotary speed reducer assembly 6 to be measured, and a temperature sensor is arranged at the position of an oil drain pipe of each rotary speed reducer assembly 6 to be measured; the flow measuring device, the torque sensor, the rotating speed sensor and the temperature sensor are all connected with the hydraulic station control center.
The test bed and the system of the rotary speed reducer are designed for independent research and development, so that the situation that the construction and test part of the test bed of the rotary speed reducer are entrusted to foreign companies for treatment is avoided, the development period of the rotary speed reducer assembly is greatly shortened, and the development cost is reduced.
Taking a fatigue life test as an example, a test procedure is described:
a) Forward rotation: the hydraulic station control center outputs hydraulic oil to a hydraulic motor 9, and the hydraulic motor 9 drives a rotary speed reducer assembly 6 to be tested to rotate in the positive direction, so that an output shaft of the rotary speed reducer assembly 6 to be tested drives the inner gear ring 4 to rotate; the inner gear ring 4 drives the output shafts of the rest rotary speed reducer assemblies 6 to be tested to rotate, and meanwhile, the hydraulic station control center outputs hydraulic oil to the rest hydraulic motors 9 to drive the hydraulic motors 9 to provide loads for the driven rotary speed reducer assemblies 6 to be tested; the hydraulic station control center can record the torque, the temperature, the rotating speed and the like of each part in the test process so as to facilitate later analysis.
b) Reversing: when a reverse rotation test is needed, the situation is the same as that of the forward rotation, and only the hydraulic station is needed to control the two hydraulic motors 9 to reversely output;
c) Through the process, the fatigue life test of the plurality of rotary speed reducer assemblies can be simultaneously realized.
In the same way, the test bench can also simultaneously carry out transmission efficiency tests, dynamic sealing performance tests, temperature rise tests, noise tests, cleanliness tests and the like of a plurality of rotary speed reducer assemblies, so that the test efficiency is improved to a great extent, and the development cost is reduced.
Finally, it should be noted that: the foregoing embodiments are merely for illustrating the technical solutions of the present invention, and not for limiting the same, and it will be apparent to those skilled in the art that modifications may be made to the specific technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof, without departing from the spirit of the technical solutions protected by the present invention.
Claims (2)
1. The utility model provides a gyration speed reducer test bench which characterized in that: comprises a supporting flat plate (1), a supporting frame (2), an outer ring (3), an inner gear ring (4) and a positioning screw (5);
the four supporting frames (2) are respectively fixed on four corners of the supporting flat plate (1), and a vacancy is formed between the supporting flat plate (1) and the supporting frames (2);
strip holes are respectively arranged at four corners of the supporting flat plate (1);
the outer ring (3) is positioned in the vacancy, the positioning screw (5) penetrates through the strip hole of the supporting flat plate (1) to be fixed on the outer wall of the outer ring (3), and the outer wall of the outer ring (3) is fixed on the four supporting frames (2);
different areas on the inner side of the inner gear ring (4) are used for respectively engaging with output shaft teeth of different rotary speed reducer assemblies (6) to be tested, and the inner gear ring (4) is coaxially arranged in the outer ring (3) and can rotate freely in the same plane relative to the outer ring (3);
the support plate (1) is provided with a plurality of to-be-detected rotary speed reducer mounting areas, and each to-be-detected rotary speed reducer mounting area comprises a central hole and flange mounting holes which are arranged outside the central hole and uniformly distributed along the circumferential direction;
the flange mounting holes are strip holes;
the supporting frame (2) is fixed on the ground through foundation bolts (7), the through holes of the foundation bolts (7) on the supporting frame (2) are also strip holes;
two to-be-detected rotary speed reducer mounting areas are arranged on the supporting flat plate (1);
also comprises a plurality of hydraulic motors (9);
one end of one hydraulic motor (9) is externally connected with a hydraulic station control center, and the other end of the hydraulic motor drives a rotary speed reducer assembly (6) to be tested;
one end of each other hydraulic motor (9) is externally connected with a hydraulic station control center, and the other end is connected with a rotary speed reducer assembly (6) to be tested to provide load for the rotary speed reducer assembly;
a flow measuring device is arranged at each hydraulic motor (9), a torque sensor and a rotating speed sensor are arranged at the position of an output shaft of each rotary speed reducer assembly (6) to be detected, and a temperature sensor is arranged at the position of an oil drain pipe of each rotary speed reducer assembly (6) to be detected;
the flow measuring device, the torque sensor, the rotating speed sensor and the temperature sensor are all connected with the hydraulic station control center.
2. The swing speed reducer testing bed of claim 1, wherein: the lower end of the supporting flat plate (1) is also provided with a grease box (8) corresponding to the output shaft of each rotary speed reducer assembly (6) to be tested, and the output shaft is immersed in grease in the grease box (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910469920.0A CN110243588B (en) | 2019-05-31 | 2019-05-31 | Rotary speed reducer test bench and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910469920.0A CN110243588B (en) | 2019-05-31 | 2019-05-31 | Rotary speed reducer test bench and system |
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| Publication Number | Publication Date |
|---|---|
| CN110243588A CN110243588A (en) | 2019-09-17 |
| CN110243588B true CN110243588B (en) | 2024-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910469920.0A Active CN110243588B (en) | 2019-05-31 | 2019-05-31 | Rotary speed reducer test bench and system |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202195921U (en) * | 2011-07-25 | 2012-04-18 | 龙工（上海）桥箱有限公司 | Testing device of bidirectional rotation hydraulic motor and speed reducer |
| CN104359672A (en) * | 2014-10-11 | 2015-02-18 | 广西柳工机械股份有限公司 | Reducer test system |
| CN105403403A (en) * | 2015-12-04 | 2016-03-16 | 索特传动设备有限公司 | Test stand of rotary reduction box |
| CN105823633A (en) * | 2016-05-19 | 2016-08-03 | 龙工（上海）精工液压有限公司 | Hydraulic motor inertia loading test device |
| RU2610881C1 (en) * | 2015-12-30 | 2017-02-17 | Акционерное общество "Центральное конструкторское бюро "Титан" | Stand for testing two identical worm gears via closed loop procedure |
| CN210090022U (en) * | 2019-05-31 | 2020-02-18 | 陕西法士特汽车传动集团有限责任公司 | Rotary speed reducer test bed and system |
-
2019
- 2019-05-31 CN CN201910469920.0A patent/CN110243588B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202195921U (en) * | 2011-07-25 | 2012-04-18 | 龙工（上海）桥箱有限公司 | Testing device of bidirectional rotation hydraulic motor and speed reducer |
| CN104359672A (en) * | 2014-10-11 | 2015-02-18 | 广西柳工机械股份有限公司 | Reducer test system |
| CN105403403A (en) * | 2015-12-04 | 2016-03-16 | 索特传动设备有限公司 | Test stand of rotary reduction box |
| RU2610881C1 (en) * | 2015-12-30 | 2017-02-17 | Акционерное общество "Центральное конструкторское бюро "Титан" | Stand for testing two identical worm gears via closed loop procedure |
| CN105823633A (en) * | 2016-05-19 | 2016-08-03 | 龙工（上海）精工液压有限公司 | Hydraulic motor inertia loading test device |
| CN210090022U (en) * | 2019-05-31 | 2020-02-18 | 陕西法士特汽车传动集团有限责任公司 | Rotary speed reducer test bed and system |
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| Publication number | Publication date |
|---|---|
| CN110243588A (en) | 2019-09-17 |
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