CN216926037U - Be used for loaded test device of coal-winning machine rocking arm - Google Patents
Be used for loaded test device of coal-winning machine rocking arm Download PDFInfo
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- CN216926037U CN216926037U CN202122981778.3U CN202122981778U CN216926037U CN 216926037 U CN216926037 U CN 216926037U CN 202122981778 U CN202122981778 U CN 202122981778U CN 216926037 U CN216926037 U CN 216926037U
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Abstract
The utility model discloses a test device for loading a rocker arm of a coal mining machine, which comprises a test platform, a height adjusting device, a variable frequency speed regulating device, a torque and rotating speed measuring device, a sensor and a speed increaser, wherein the height adjusting device, the variable frequency speed regulating device, the torque and rotating speed measuring device, the sensor and the speed increaser are arranged on the test platform; the coal mining machine rocker arms are correspondingly arranged on the height adjusting devices, and the height of the test platform can be adjusted through the height adjusting devices so as to adapt to coal mining machine rocker arms of different models; the control system is connected with the variable frequency speed regulating device in a control way; the variable frequency speed regulating device is connected with a torque and rotating speed measuring device in a driving way; the torque and rotating speed measuring device is connected with the speed increaser; the speed increaser is connected with a rocker arm of the coal mining machine; the sensor is arranged on the rocker arm of the coal mining machine and connected with the monitoring system and the control system, parameters of the rocker arm of the coal mining machine collected by the sensor are transmitted to the monitoring system for monitoring, and the parameters are controlled by the control system.
Description
Technical Field
The utility model relates to a test device, in particular to a test device for loading a rocker arm of a coal mining machine.
Background
With the large emergence of ten million-ton-level coal mines and the mechanized and intelligent development of the coal mines, the coal mining machine is widely applied to the underground coal mines and has higher and higher power. Due to the complex situation of the coal mine working face, higher requirements are provided for the working safety and reliability of the rocker arm of the coal mining machine.
The traditional coal mining machine rocker arm loading test bed adopts low-speed loading brake, energy generated in a test is consumed through heat, and the green development of an enterprise is not facilitated.
Meanwhile, the voltage grades of the coal mining machine under the coal mine are generally 1140V and 3300V, a transformer is required to be configured for each voltage grade according to the conventional practice, a soft starter is required to be configured for a high-power rocker arm, the equipment investment is large, and the popularization and application of the coal mining machine test bed are also restricted.
Therefore, the problem to be solved in the field is how to improve the applicability of the loading test device for the rocker arm of the coal mining machine.
SUMMERY OF THE UTILITY MODEL
Aiming at the technical problem that the existing coal mining machine rocker arm loading test device is low in applicability, the utility model aims to provide the test device for loading the coal mining machine rocker arm, the frequency conversion speed regulation device is arranged, the frequency conversion speed regulation device can meet the loading of various tested rocker arms, and the problems in the prior art are well overcome.
In order to achieve the aim, the test device for loading the rocker arm of the coal mining machine comprises a rocker arm of the coal mining machine, a test platform, a height adjusting device, a variable frequency speed regulating device, a torque and rotating speed measuring device, a sensor and a speed increaser, wherein the height adjusting device, the variable frequency speed regulating device, the torque and rotating speed measuring device, the sensor and the speed increaser are arranged on the test platform; the coal mining machine rocker arms are correspondingly arranged on the height adjusting devices, and the height of the test platform can be adjusted through the height adjusting devices so as to adapt to coal mining machine rocker arms of different models; the control system is connected with the variable frequency speed regulation device in a control mode; the variable frequency speed regulating device is connected with a torque and rotating speed measuring device in a driving way; the torque and rotating speed measuring device is connected with a speed increaser; the speed increaser is connected with a rocker arm of the coal mining machine; the sensor is arranged on the rocker arm of the coal mining machine and connected with the monitoring system and the control system, parameters of the rocker arm of the coal mining machine collected by the sensor are transmitted to the monitoring system for monitoring, and the parameters are controlled by the control system.
Further, the test platform is a T-shaped test platform.
Furthermore, the height adjusting device comprises a T-shaped groove strip, a sliding block and a plurality of adjusting bolts; the sliding block is arranged below the T-shaped groove strip; the T-shaped groove strips are provided with rocker arms of the coal mining machine, the height of the T-shaped groove strips is finely adjusted through sliding of the sliding blocks, and the sliding blocks are loosened and tightened through adjusting bolts.
Further, the sensors comprise a temperature sensor, a vibration sensor, a rocker arm motor current transformer and a rocker arm motor voltage transformer;
the temperature sensor is used for being placed at the position of the rocker bearing and in the rocker lubricating oil; the vibration sensor is placed at a bearing of a rocker arm of the coal mining machine; the rocker arm motor current transformer and the rocker arm motor voltage transformer are placed in a motor junction box configured for a rocker arm of a coal mining machine; all sensors are connected with a monitoring system, and the temperature, vibration, voltage and current parameter values acquired by the temperature sensor, the vibration sensor, the rocker arm motor current transformer and the rocker arm motor voltage transformer are transmitted to the monitoring system for monitoring.
Furthermore, the control system controls the connection sensor, and when the control system receives parameter values of temperature, vibration, voltage and current collected by the temperature sensor, the vibration sensor, the rocker arm motor current transformer and the rocker arm motor voltage transformer side in the sensor, and if the parameter values exceed an allowable range, the control system can send an alarm or stop the machine.
Furthermore, a lubricating and cooling system is also arranged in the testing device; the lubricating and cooling system comprises a closed water cooling system and a forced lubricating system; the closed water cooling system is connected with a cooling water tank configured on the rocker arm of the coal mining machine, and cooling water meeting requirements is provided according to the cooling water flow, pressure and temperature requirements of the rocker arm of the coal mining machine; the forced lubrication system is connected with the rocker arm of the coal mining machine and the speed increaser, and provides forced lubrication for the rocker arm of the coal mining machine and the speed increaser, so that the cooling and lubricating requirements of equipment are met.
The utility model provides a be used for coal-winning machine rocking arm loaded test device, it can consider the loading that satisfies polytype rocking arm machine under test through setting up variable frequency speed control device, has improved test device's suitability greatly.
Drawings
The utility model is further described below in conjunction with the appended drawings and the detailed description.
FIG. 1 is a schematic diagram of the overall structure of the loading test device for the rocker arm of the coal mining machine;
fig. 2 is a system schematic diagram of a variable frequency speed regulating device in the coal mining machine rocker arm loading test device.
The following are labeled descriptions of the components in the drawings:
100. the variable frequency speed regulation device 200, the diaphragm coupling 300, the torque and rotating speed measurement device 400, the speed increaser 500, the Oldham coupling 600 and the rocker arm of the coal mining machine.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further explained below by combining the specific drawings.
The test device for loading the rocker arm of the coal mining machine provided by the scheme is shown in fig. 1 and comprises a test platform, the rocker arm 600 of the coal mining machine, a variable frequency speed regulating device 100, a torque and rotating speed measuring device 300, a sensor, a speed increaser 400 and a monitoring system.
The test platform is an installation body of each device, and each device is installed on the test platform and runs on the test platform.
What adopt in this scheme is T type test platform, can conveniently install the fastening to different model coal-winning machine rocking arms.
Further, the shearer ranging arm 600 is mounted on the test platform. A height adjusting device is arranged below the rocker arm 600 of the coal mining machine and used for adjusting the height of the rocker arm 600 of the coal mining machine.
The height adjusting device is arranged on the test platform; through the height adjusting device and the coal mining machine rocker arm 600, the height adjusting device can be used for adjusting the height of the test platform, and the test platform can meet the test requirements of the coal mining machine rocker arms 6000 of different models.
The height adjusting device comprises a T-shaped groove strip, a sliding block and a plurality of adjusting bolts; the height adjusting device is arranged on the test platform through the height adjusting device.
Further, the rocker arm 600 of the coal mining machine is installed on a T-shaped groove, the height of the T-shaped groove is determined according to the height of the center of the rocker arm equipment, which is higher than the center of the loading speed increaser, an adjusting slide block is placed below the T-shaped groove, the center height of the rocker arm arranged on the T-shaped groove can be finely adjusted by sliding the slide block, and meanwhile, the slide block is loosened and loosened by an adjusting bolt.
The composition and operation of the shearer loader arm 600 is well known to those skilled in the art and will not be described in detail herein.
The variable-frequency speed regulation device 100 is used for controllably starting the rocker arm 600 of the coal mining machine, one end of the variable-frequency speed regulation device is connected with the control system, and parameters of the variable-frequency speed regulation device 100 are controlled and set through the control system; the other end of the variable frequency speed regulating device 100 is connected with a torque and rotating speed measuring device 300.
The variable frequency speed regulating device 100 comprises a variable frequency motor and a controller; the starting and stopping of the coal mining machine rocker arm 600 are controlled through a controller in a mode of changing the frequency of a variable frequency motor.
One end of the torque and rotating speed measuring device 300 is connected with the variable frequency speed regulating device 100 through a diaphragm coupling 200; the other end of the torque/rotation speed measuring device 300 is connected to the speed increaser 400.
The torque and rotation speed measuring device 300 is connected with the monitoring system, and can transmit the torque collected by the coal mining machine rocker arm 600 through the torque and rotation speed measuring device to the monitoring system for monitoring.
The HBM torque and rotation speed sensor is preferably adopted in the torque and rotation speed measuring device 300, so that the change of the torque and rotation speed in the rocker arm 600 of the coal mining machine can be measured quickly and accurately.
The torque and rotation speed measuring device 300 is connected with a speed increaser 400, and the speed increaser 400 is used for increasing the speed of the rocker arm 600 of the coal mining machine.
The sensor is connected with the speed increaser 400 by a diaphragm coupling 200; the sensor comprises a temperature sensor, a vibration sensor, a rocker arm motor current transformer and a rocker arm motor voltage transformer.
The temperature sensor is used for being placed at the bearing of the rocker arm 600 and in the lubricating oil of the rocker arm; the vibration sensor is placed at the bearing of the rocker arm 600; the rocker motor current transformer and the rocker motor voltage transformer are placed in a motor junction box of the rocker 600; all sensors communicate to the monitoring system through local instrumentation to monitor the operating state of the rocker arm 600.
The torque and rotating speed measuring device 300 is preferably connected with the variable frequency speed regulating device 100 and the speed increaser 400 through a diaphragm coupling 200; the diaphragm coupling 200 is a metal strong element flexible coupling, and has high strength and compact structure, and the reliability of the testing device in use can be greatly improved.
The monitoring system is used for monitoring the running of the test device and is respectively connected with the coal mining machine rocker arm 600, the variable frequency speed regulation device 100 and the sensor; the rocker arm 600 of the coal mining machine, the variable frequency speed regulation device 100 and the sensor transmit the operation data to the monitoring system in real time for monitoring by operators at any time.
The control system is used for controlling the state of the rocker arm motor in working, and if the temperature, vibration, voltage and current parameters of the tested rocker arm monitored in the test process exceed the allowable range, an alarm or a stop signal can be sent.
Meanwhile, in order to ensure the stability of the system during operation, a lubricating and cooling system is additionally arranged in the scheme, and the lubricating and cooling system can lubricate and cool the rocker arm and the speed increaser; the system comprises a closed water cooling system and a forced lubrication system.
The closed water cooling system is connected with a cooling water tank of the tested rocker arm 600, and cooling water meeting requirements is provided according to the cooling water flow, pressure and temperature requirements of the tested rocker arm; the forced lubrication system is connected with the tested rocker arm 600 and the speed increaser 400, and provides forced lubrication for the rocker arm 600 and the speed increaser 400, so that the cooling and lubricating requirements of equipment requirements are met.
The working process of the method in specific application is illustrated as follows:
firstly, connecting the rocker arms 600 of the coal mining machine to be tested, ensuring that the coaxiality between the equipment connections meets the requirement, and enabling the transmission voltage grade of the rectifier boosting transformer to correspond to the voltage grade of the rocker arms of the coal mining machine;
connecting the rocker arm 600 of the coal mining machine, the speed increaser 400 and the cooling and lubricating system as required, and detecting whether the steering of a lubricating pump motor and a cooling water motor in the test device is correct;
the monitoring system, the sensor and the like are connected as required, relevant parameters are adjusted by the control system, the lubricating and cooling system is started,
after normal operation, the rocker arm of the coal mining machine is started through the frequency converter, the filter and the rectifier step-up transformer, after the rocker arm is operated to the required rotating speed of the test, the moment limit value of the loading variable frequency motor is adjusted through the control system, the transmission performance loading test of the rocker arm 600 of the coal mining machine can be carried out, and data recording can be carried out on relevant parameters through the control system in the test process, and a report is produced to the monitoring system.
The control system monitors parameters such as temperature, vibration, voltage, current and the like of the tested rocker arm 600 in the test process, and when the parameters exceed the allowable control range, the control system can send signals such as alarm or stop.
According to the test device for loading the rocker arm of the coal mining machine, the variable frequency speed regulation device is arranged, loading of various types of tested rocker arms can be met through the variable frequency speed regulation device, and the applicability of the test device is greatly improved.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. A test device for loading a rocker arm of a coal mining machine comprises the rocker arm of the coal mining machine and a control system, and is characterized by comprising a test platform, a height adjusting device, a variable frequency speed regulating device, a torque and rotating speed measuring device, a sensor and a speed increaser, wherein the height adjusting device, the variable frequency speed regulating device, the torque and rotating speed measuring device, the sensor and the speed increaser are arranged on the test platform; the coal mining machine rocker arms are correspondingly arranged on the height adjusting devices, and the height of the test platform can be adjusted through the height adjusting devices so as to adapt to coal mining machine rocker arms of different models; the control system is connected with the variable frequency speed regulation device in a control mode; the variable frequency speed regulating device is connected with a torque and rotating speed measuring device in a driving way; the torque and rotating speed measuring device is connected with a speed increaser; the speed increaser is connected with a rocker arm of the coal mining machine; the sensors are arranged on the rocker arms of the coal mining machine and connected with the monitoring system and the control system, parameters of the rocker arms of the coal mining machine collected by the sensors are transmitted to the monitoring system to be monitored, and the parameters are controlled by the control system.
2. The testing device for the loading of the rocker arm of the coal mining machine as claimed in claim 1, characterized in that the testing platform is a T-shaped testing platform.
3. The testing device for the loading of the shearer loader arm according to claim 1, wherein the height adjusting device comprises a T-shaped groove bar, a sliding block and a plurality of adjusting bolts; the sliding block is arranged below the T-shaped groove strip; the T-shaped groove strips are provided with rocker arms of the coal mining machine, the height of the T-shaped groove strips is finely adjusted through sliding of the sliding blocks, and the sliding blocks are loosened and tightened through adjusting bolts.
4. The testing device for the loading of the rocker arm of the coal mining machine according to claim 1, wherein the sensor comprises a temperature sensor, a vibration sensor, a rocker arm motor current transformer, a rocker arm motor voltage transformer;
the temperature sensor is used for being placed at the position of the rocker bearing and in the rocker lubricating oil; the vibration sensor is placed at a bearing of a rocker arm of the coal mining machine; the rocker arm motor current transformer and the rocker arm motor voltage transformer are arranged in a motor junction box configured for a rocker arm of the coal mining machine; all sensors are connected with a monitoring system, and the temperature, vibration, voltage and current parameter values acquired by the temperature sensor, the vibration sensor, the rocker arm motor current transformer and the rocker arm motor voltage transformer are transmitted to the monitoring system for monitoring.
5. The device for testing the loading of the rocker arm of the coal mining machine as claimed in claim 1, wherein the control system is in control connection with the sensor, and when the control system receives parameter values of temperature, vibration, voltage and current collected by a temperature sensor, a vibration sensor, a rocker arm motor current transformer and a rocker arm motor voltage transformer side in the sensor, and if the parameter values exceed an allowable range, the control system sends an alarm or a stop signal.
6. The testing device for the loading of the rocker arm of the coal mining machine as claimed in claim 1, characterized in that a lubricating and cooling system is further arranged in the testing device; the lubricating and cooling system comprises a closed water cooling system and a forced lubricating system; the closed water cooling system is connected with a cooling water tank configured on the rocker arm of the coal mining machine, and cooling water meeting requirements is provided according to the cooling water flow, pressure and temperature requirements of the rocker arm of the coal mining machine; the forced lubrication system is connected with the rocker arm of the coal mining machine and the speed increaser, and provides forced lubrication for the rocker arm of the coal mining machine and the speed increaser, so that the cooling and lubricating requirements of equipment requirements are met.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122981778.3U CN216926037U (en) | 2021-11-30 | 2021-11-30 | Be used for loaded test device of coal-winning machine rocking arm |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122981778.3U CN216926037U (en) | 2021-11-30 | 2021-11-30 | Be used for loaded test device of coal-winning machine rocking arm |
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| CN216926037U true CN216926037U (en) | 2022-07-08 |
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| CN202122981778.3U Active CN216926037U (en) | 2021-11-30 | 2021-11-30 | Be used for loaded test device of coal-winning machine rocking arm |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117538044A (en) * | 2024-01-09 | 2024-02-09 | 常州市常和机械有限公司 | Water-cooled valve rocker detection device |
-
2021
- 2021-11-30 CN CN202122981778.3U patent/CN216926037U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117538044A (en) * | 2024-01-09 | 2024-02-09 | 常州市常和机械有限公司 | Water-cooled valve rocker detection device |
| CN117538044B (en) * | 2024-01-09 | 2024-03-12 | 常州市常和机械有限公司 | Water-cooled valve rocker detection device |
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