CN204142477U - Rocker arm of coal mining machine load testing machine - Google Patents
Rocker arm of coal mining machine load testing machine Download PDFInfo
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- CN204142477U CN204142477U CN201420460548.XU CN201420460548U CN204142477U CN 204142477 U CN204142477 U CN 204142477U CN 201420460548 U CN201420460548 U CN 201420460548U CN 204142477 U CN204142477 U CN 204142477U
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Abstract
The utility model discloses a kind of rocker arm of coal mining machine load testing machine, and described test unit comprises: electric eddy current dynamometer, coupling assembling, mechanical fastening device, loading rocking arm, torque plate assembly, accompany examination rocking arm and hydraulic system; Coupling assembling mainly comprises gimbal coupling assembly, coupling shaft, bearing seat external member and shaft collar; Coupling assembling is connected and fixed by shaft collar and accompanies examination rocking arm, and coupling assembling is coupled together electric eddy current dynamometer by gimbal coupling assembly, and transmitting torque; Torque plate assembly is loading rocking arm and accompanying examination rocking arm to couple together; Mechanical fastening device is fixing to be loaded rocking arm and accompanies examination rocking arm, ensures that the centre of gyration of each parts is consistent, prevents the vibration of rocking arm simultaneously when rocking arm loading experiment.The utility model can be used for rocker arm of coal mining machine load test back-to-back, improves the reliability of rocker arm of coal mining machine.
Description
Technical field
The utility model belongs to extractive equipment technical field, relates to a kind of coalcutter test unit, particularly relates to a kind of rocker arm of coal mining machine load testing machine.
Background technology
In recent years, in order to meet the requirement of shaft production " high-yield and high-efficiency ", the recovery method of full-seam mining becomes the main method of China's high seam mining gradually.As the drum shearer of coal mining major equipment, in order to meet the requirement of productive capacity, coalcutter installed power is increasing, and corresponding rocker arm of coal mining machine power is also increasing.
The applicant's existing coalcutter product MG900/2245-GWD rocking arm power reaches 900KW, along with customer requirement full-seam mining 7m, newly-designed rocking arm power at least will reach 1000KW, existing rocker arm of coal mining machine bracket loading test platform design load capability is 880KW, can not meet the demands.
Meanwhile, along with the increasing of the coalcutter amount of dispatching from the factory, existing rocking arm bracket loading test platform cannot meet the applicant's production requirement.In order to the efficiency that the reliability and rocking arm that improve rocking arm load, promote detectability, improve the Performance and quality level of the applicant's coalcutter, the maximum 1500KW of being loaded into rocking arm bracket loading test platform research and development program element is arisen at the historic moment.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of rocker arm of coal mining machine load testing machine, for rocker arm of coal mining machine load test back-to-back, improves the reliability of rocker arm of coal mining machine.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of rocker arm of coal mining machine load testing machine, described test unit comprises: electric eddy current dynamometer, coupling assembling, mechanical fastening device, loading rocking arm, torque plate assembly, accompany examination rocking arm and hydraulic system;
Electric eddy current dynamometer connecting rocker arm, provide the load torque needed for rocking arm loading, electric eddy current dynamometer comprises display unit, display setting information;
Coupling assembling mainly comprises gimbal coupling assembly, coupling shaft, bearing seat external member and shaft collar; Coupling assembling is connected and fixed by shaft collar and accompanies examination rocking arm, and coupling assembling is coupled together electric eddy current dynamometer by gimbal coupling assembly, and transmitting torque;
Torque plate assembly is loading rocking arm and accompanying examination rocking arm to couple together; Mechanical fastening device is fixing to be loaded rocking arm and accompanies examination rocking arm, ensures that the centre of gyration of each parts is consistent, prevents the vibration of rocking arm simultaneously when rocking arm loading experiment;
Hydraulic system connects electric eddy current dynamometer respectively, loads rocking arm and accompanies examination rocking arm, for electric eddy current dynamometer, loads rocking arm and accompanies examination rocking arm to provide chilled water; Hydraulic system comprises temperature sensor, pressure transducer for monitoring water temperature and hydraulic pressure.
As a kind of preferred version of the present utility model, described hydraulic system comprises electric eddy current dynamometer cooling water system, rocking arm cooling water system unifies drainage.
As a kind of preferred version of the present utility model, described loading rocking arm comprises shearer ranging arm, motor, planet head group part and gear train assembly; Examination rocking arm is accompanied to comprise shearer ranging arm, planet head group part and gear train assembly.
As a kind of preferred version of the present utility model, described mechanical fastening device comprises the mechanical connection securing member of supporting seat and pedestal, supports, fixes rocking arm.
As a kind of preferred version of the present utility model, described electric eddy current dynamometer is also connected with operator's console.
The beneficial effects of the utility model are: the rocker arm of coal mining machine load testing machine that the utility model proposes, load torque is provided by electric eddy current dynamometer, the two rocking arm of employing back-to-back type loads simultaneously, open type experiment loading unit, strengthen rocking arm loading efficiency and test accuracy, improve the reliability that rocker arm of coal mining machine dispatches from the factory.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of rocker arm of coal mining machine load testing machine of the utility model;
Fig. 2 is the structural representation of coupling assembling in the utility model;
Fig. 3 is the primary structure schematic diagram of mechanical fastening device in the utility model.
Embodiment
Preferred embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.
Embodiment one
Refer to Fig. 1 to Fig. 3, the utility model discloses a kind of rocker arm of coal mining machine load testing machine, major function provides load torque by the electric eddy current dynamometer that control accuracy is higher, adopts back-to-back type to carry out load test to rocking arm, improve the reliability that rocker arm of coal mining machine dispatches from the factory.
Described charger comprises electric eddy current dynamometer system (comprising the elements such as electric eddy current dynamometer 1 and operator's console), coupling assembling 2, mechanical fastening device 3, loads Rocker arm 4, torque plate assembly 5, accompanies examination rocking arm 6 and hydraulic system 7.
Electric eddy current dynamometer 1 is responsible for providing the load torque needed for rocking arm loading, and is carried out the display of the measuring-signals such as electric current, rotating speed, moment of torsion, water temperature, hydraulic pressure by operator's console.
Coupling assembling 2 is formed primarily of gimbal coupling assembly 8, coupling shaft 9, bearing seat external member 10 and shaft collar 11.Coupling assembling 2 is connected and fixed by shaft collar 11 and accompanies examination rocking arm 6, and coupling assembling 2 is coupled together electric eddy current dynamometer 1 by gimbal coupling assembly 8, and transmitting torque.
Load Rocker arm 4 and comprise shearer ranging arm, motor, planet head group part and gear train assembly etc.; Examination rocking arm 6 is accompanied to comprise shearer ranging arm, planet head group part and gear train assembly; Torque plate assembly 5 comprises male and female torque plate and connects the elements such as securing member.
Torque plate assembly 5 is loading Rocker arm 4 and accompanying examination rocking arm 6 to couple together.Mechanical fastening device 3 comprises the element such as brace table and pedestal, and Main Function is fixing loading Rocker arm 4 and accompanies examination rocking arm 6, to be ensure that the centre of gyration of each parts is consistent, and two is, when ensureing rocking arm loading experiment, prevent the vibration of rocking arm.
Hydraulic system 7 comprises electric eddy current dynamometer cooling water system, rocking arm cooling water system unifies drainage; Main Function is to provide chilled water, and for electric eddy current dynamometer 1, load Rocker arm 4 and accompany examination rocking arm 6 to provide chilled water, it is overheated to prevent, and by sensor component, monitoring water temperature and hydraulic pressure.
When electric eddy current dynamometer 1, loading Rocker arm 4 with after accompanying examination rocking arm 6 to be connected and fixed by mechanical fastening device 3, hydraulic system 7 first passes into chilled water and carries out circulation temperature lowering.Load the motor access power supply inside Rocker arm 4, gear train assembly inside rocking arm slows down, low-speed big is exported at rocking arm planet head, connected by torque plate assembly 5 and load Rocker arm 4 and accompany examination rocking arm 6, low-speed big is passed to and accompanies examination rocking arm 6, then through accompanying the speedup of examination rocking arm 6, then coupling assembling 2 is passed through power transmission to electric eddy current dynamometer 1 at rocking arm one axle, electric eddy current dynamometer 1 applies corresponding load torque by the eddy current principle of itself, complete the loading to rocking arm, in load test process, the water temperature in hydraulic system 7 collected by electric eddy current dynamometer 1, electric current in hydraulic pressure and system, moment of torsion, the signals such as rotating speed, and be presented on operator's console.According to the requirement of rocker arm of coal mining machine delivery test, the loading of respective load and time requirement can be carried out to rocker arm of coal mining machine.
Embodiment two
The difference of the present embodiment and embodiment one is, in the present embodiment, described loading rocking arm, provides power by the built-in motor of rocking arm own, is connected and accompanies examination rocking arm, and transmit power by torque plate assembly.
Described accompany examination rocking arm function class like and gearbox, by the power of torque plate component passes, kinematic train speedup is matched to the family curve with electric eddy current dynamometer.
Described coupling assembling is connected by coupling assembly accompanies examination rocking arm and electric eddy current dynamometer, can linear compensation and angle compensation, has very large versatility, and can transmit different model and load the moment of torsion that rocking arm needs, coupling assembling is hardly with changing.
In sum, a kind of rocker arm of coal mining machine load testing machine that the utility model proposes, adopts back-to-back type rocking arm loading scheme, by electric eddy current dynamometer, system is loaded, complete rocking arm load test, meet rocker arm of coal mining machine and to dispatch from the factory requirement, improve the reliability that rocker arm of coal mining machine dispatches from the factory.
Here description of the present utility model and application is illustrative, not wants by scope restriction of the present utility model in the above-described embodiments.Distortion and the change of embodiment disclosed are here possible, are known for the replacement of embodiment those those of ordinary skill in the art and the various parts of equivalence.Those skilled in the art are noted that when not departing from spirit of the present utility model or essential characteristic, the utility model can in other forms, structure, layout, ratio, and to realize with other assembly, material and parts.When not departing from the utility model scope and spirit, can other distortion be carried out here to disclosed embodiment and change.
Claims (5)
1. a rocker arm of coal mining machine load testing machine, it is characterized in that, described test unit comprises: electric eddy current dynamometer (1), coupling assembling (2), mechanical fastening device (3), load rocking arm (4), torque plate assembly (5), accompany examination rocking arm (6) and hydraulic system (7);
Electric eddy current dynamometer (1) connecting rocker arm, provide the load torque needed for rocking arm loading, electric eddy current dynamometer (1) comprises display unit, display setting information;
Coupling assembling (2) mainly comprises gimbal coupling assembly (8), coupling shaft (9), bearing seat external member (10) and shaft collar (11); Coupling assembling (2) is connected and fixed by shaft collar (11) and accompanies examination rocking arm (6), coupling assembling (2) is coupled together electric eddy current dynamometer (1) by gimbal coupling assembly (8), and transmitting torque;
Torque plate assembly (5) is loading rocking arm (4) and accompany examination rocking arm (6) to couple together; Mechanical fastening device (3) is fixing to be loaded rocking arm (4) and accompanies examination rocking arm (6), ensures that the centre of gyration of each parts is consistent, prevents the vibration of rocking arm simultaneously when rocking arm loading experiment;
Hydraulic system (7) connects electric eddy current dynamometer (1) respectively, loads rocking arm (4) and accompany examination rocking arm (6), for electric eddy current dynamometer (1), loads rocking arm (4) and accompanies examination rocking arm (6) to provide chilled water; Hydraulic system (7) comprises temperature sensor, pressure transducer for monitoring water temperature and hydraulic pressure.
2. rocker arm of coal mining machine load testing machine according to claim 1, is characterized in that:
Described hydraulic system comprises electric eddy current dynamometer cooling water system, rocking arm cooling water system unifies drainage.
3. rocker arm of coal mining machine load testing machine according to claim 1, is characterized in that:
Described mechanical fastening device comprises supporting seat and pedestal, supports, fixes rocking arm.
4. rocker arm of coal mining machine load testing machine according to claim 1, is characterized in that:
Described loading rocking arm (4) comprises shearer ranging arm, motor, planet head group part and gear train assembly; Examination rocking arm (6) is accompanied to comprise shearer ranging arm, planet head group part and gear train assembly.
5. rocker arm of coal mining machine load testing machine according to claim 1, is characterized in that:
Described electric eddy current dynamometer (1) is also connected with operator's console.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420460548.XU CN204142477U (en) | 2014-08-15 | 2014-08-15 | Rocker arm of coal mining machine load testing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420460548.XU CN204142477U (en) | 2014-08-15 | 2014-08-15 | Rocker arm of coal mining machine load testing machine |
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| CN204142477U true CN204142477U (en) | 2015-02-04 |
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| CN201420460548.XU Active CN204142477U (en) | 2014-08-15 | 2014-08-15 | Rocker arm of coal mining machine load testing machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105319056A (en) * | 2015-10-27 | 2016-02-10 | 兰州飞行控制有限责任公司 | Electromagnetic brake loading device |
| CN109708876A (en) * | 2019-01-25 | 2019-05-03 | 中国船舶重工集团公司第七0三研究所 | A kind of load testing machine of drum type strainer speed reducing driving device |
| CN113567167A (en) * | 2021-07-28 | 2021-10-29 | 西安煤矿机械有限公司 | Method for testing rocker arm of coal mining machine with ultra-large mining height |
-
2014
- 2014-08-15 CN CN201420460548.XU patent/CN204142477U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105319056A (en) * | 2015-10-27 | 2016-02-10 | 兰州飞行控制有限责任公司 | Electromagnetic brake loading device |
| CN105319056B (en) * | 2015-10-27 | 2017-12-19 | 兰州飞行控制有限责任公司 | A kind of electromagnetic brake loading device |
| CN109708876A (en) * | 2019-01-25 | 2019-05-03 | 中国船舶重工集团公司第七0三研究所 | A kind of load testing machine of drum type strainer speed reducing driving device |
| CN109708876B (en) * | 2019-01-25 | 2023-12-05 | 中国船舶重工集团公司第七0三研究所 | Loading test device of drum type filter screen speed reduction driving device |
| CN113567167A (en) * | 2021-07-28 | 2021-10-29 | 西安煤矿机械有限公司 | Method for testing rocker arm of coal mining machine with ultra-large mining height |
| CN113567167B (en) * | 2021-07-28 | 2024-01-26 | 西安煤矿机械有限公司 | Method for testing rocker arm of ultra-large mining height coal mining machine |
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