Intelligent test device for cutting speed reducer of digging and anchoring integrated machine

Abstract

The utility model provides an intelligent test device for a cutting speed reducer of a digging and anchoring all-in-one machine, and belongs to the technical field of speed reducer (acceleration) test. Comprising a cutting speed reducer driving motor used for providing power for a to-be-tested cutting speed reducer, universal transmission shafts used for being connected with output shafts on the two sides of the to-be-tested cutting speed reducer respectively, a torque sensor connected with the universal transmission shafts, an accompanying speed reducer connected with the torque sensor and a dynamometer connected with the accompanying speed reducer. The intelligent test device for the cutting speed reducer of the digging and anchoring all-in-one machine provided by the utility model realizes a no-load test and a step-by-step loading test of the cutting speed reducer of the high-power digging and anchoring all-in-one machine, acquires information such as temperature, vibration, torque, rotating speed and the like of the cutting speed reducer in real time, and can be used for analyzing the assembly quality and reliability of the cutting speed reducer.

Description

Technical Field

[0001] The utility model belongs to the technical field of reducer (accelerator) testing, and specifically discloses an intelligent testing device for a cutting reducer of a digging and anchoring integrated machine. Background Art

[0002] Integrated coal tunneling and anchoring technology is the future of rapid coal tunneling and a crucial component of high-yield and high-efficiency mining technology. Because the integrated tunneling and anchoring machine combines tunneling, support, transportation, and crawler travel, its high level of integration and advanced technology make it the world's most advanced coal mine tunneling machine, best embodying integrated tunneling and anchoring technology.

[0003] The cutting reducer, the core mechanism of the bolter and miner, innovatively utilizes a high-speed, split-flow, reversing dual-drive cutting mechanism. This means the high-power source is vertically redirected through a first-stage spur gear drive and a second-stage bevel gear drive, before being output through a third- and fourth-stage planetary drive. This results in a compact design, high power, and high efficiency. Because the cutting reducer is located at the very front of the bolter and miner, it operates in harsh environments and withstands extremely high torque. Consequently, oil leaks, high temperatures, and tooth breakage are common problems. Furthermore, its location at the very front of the tunnel makes it difficult to disassemble underground, making after-sales service difficult and costly. Utility Model Content

[0004] Loading test on the reducer is one of the most effective means to test the assembly quality and reliability of the reducer. To this end, the present application provides an intelligent testing device for the cutting reducer of an integrated mining and anchoring machine, so as to facilitate the inspection of the assembly quality and reliability of the cutting reducer before installation.

[0005] The utility model provides an intelligent test device for a cutting reducer of an integrated miner and anchoring machine, comprising a cutting reducer drive motor, a universal joint transmission shaft, a torque sensor, a test reducer, a dynamometer, a frequency converter I, a frequency converter II, an intelligent measurement and control system, an upper industrial computer and a data acquisition module; the cutting reducer drive motor is connected to the cutting reducer to be tested; the input ends of two sets of universal joint transmission shafts are used to be respectively connected to the output shafts on both sides of the cutting reducer to be tested, the output ends of the universal joint transmission shafts are connected to the input ends of the torque sensor through a bearing seat, the output end of the torque sensor is connected to the input shaft of the test reducer through a coupling II, and the output shaft of the test reducer is connected to the input end of the dynamometer through a coupling I; the data acquisition module is used to collect parameters of the cutting reducer to be tested in real time; the input end of the intelligent measurement and control system is connected to the output end of the upper industrial computer, the output end of the data acquisition module and the output ends of the two dynamometers, the output end of the intelligent measurement and control system is connected to the input ends of the frequency converter I and the frequency converter II, and the output ends of the frequency converter I and the frequency converter II are respectively connected to the control ends of the two dynamometers.

[0006] In the above-mentioned intelligent test device for the cutting reducer of the integrated miner and anchor machine, the cutting reducer drive motor is connected to the input shaft of the cutting reducer to be tested; the input end of the universal joint shaft is connected to the output shaft of the cutting reducer to be tested through a connecting flange.

[0007] In the above-mentioned intelligent test device for the cutting reducer of the integrated miner and anchoring machine, the torque sensor is a flange-type torque sensor; the transmission ratio of the test reducer is 16:1.

[0008] In the above-mentioned intelligent test device for the cutting reducer of the integrated mining and anchoring machine, the rated voltage of the cutting reducer drive motor is 1140V; the dynamometer is an AC power dynamometer with a rated voltage of 380V; the intelligent test device for the cutting reducer of the integrated mining and anchoring machine also includes a power distribution control cabinet and an 1140V / 380V transformer; the factory voltage is 1140V, and the power is distributed through the power distribution control cabinet. The first route directly supplies power to the cutting reducer drive motor, and the second route passes through the 1140V / 380V transformer and is connected to the frequency converter I and frequency converter II. The frequency converter I and frequency converter II are respectively connected to the two dynamometers.

[0009] The above-mentioned intelligent test device for the cutting reducer of the integrated miner and anchoring machine also includes a chiller for cooling the cutting reducer drive motor and the test reducer.

[0010] The above-mentioned intelligent testing device for the cutting reducer of the integrated miner and anchor machine also includes a mouse and / or keyboard connected to the input end of the upper industrial computer; and a display and / or printer connected to the output end of the upper industrial computer.

[0011] The above-mentioned intelligent test device for the cutting reducer of the integrated miner and anchor machine also includes a stand for fixing the cutting reducer to be tested, a bearing seat, a test reducer and a dynamometer, and a cast iron platform connected to the stand.

[0012] Compared with the prior art, the present invention has the following beneficial effects.

[0013] The intelligent testing device for the cutting reducer of the anchoring and digging machine provided by the utility model realizes the no-load test and step-by-step loading test of the cutting reducer of the high-power anchoring and digging machine, and collects the temperature, vibration, torque, speed and other information of the cutting reducer in real time, which can be used to analyze and test the assembly quality and reliability of the cutting reducer before installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 The schematic diagram of the cutting reducer to be tested is shown in FIG.

[0016] Figure 2 This is the working principle diagram of the intelligent test device for the cutting reducer of the anchoring and digging machine;

[0017] Figure 3 This is the control flow chart of the intelligent test device for the cutting reducer of the integrated miner and anchor machine.

[0018] In the figure: 1 - cutting reducer to be tested; 1.1 - first stage transmission of cutting reducer; 1.2 - second stage transmission of cutting reducer; 1.3 - third stage transmission of cutting reducer; 1.4 - fourth stage transmission of cutting reducer; 1.5 - intermediate shaft;

[0019] 2.1-Dynamometer; 2.2-Coupling I; 2.3-Test reducer; 2.4-Coupling II; 2.5-Torque sensor; 2.6-Bearing seat; 2.7-Universal drive shaft; 2.8-Connecting flange; 2.9-Intelligent measurement and control system; 2.10-Cutting reducer drive motor; 2.11-Power distribution control cabinet; 2.12-1140V / 380V transformer; 2.13-Frequency conversion controller I; 2.14-Frequency conversion controller II; 2.15-Chiller. DETAILED DESCRIPTION

[0020] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0021] Figure 1 It is a simplified structural diagram of the cutting reducer 1 to be tested, including the first-stage transmission 1.1 of the cutting reducer, the second-stage transmission 1.2 of the cutting reducer, the third-stage transmission 1.3 of the cutting reducer, the fourth-stage transmission 1.4 of the cutting reducer, and an intermediate shaft 1.5.

[0022] The first-stage transmission 1.1 of the cutting reducer is a spur gear transmission, the second-stage transmission 1.2 of the cutting reducer is a bevel gear transmission, the third-stage transmission 1.3 of the cutting reducer is a planetary transmission, and the fourth-stage transmission 1.4 of the cutting reducer is a planetary transmission. The driving bevel gear of the second-stage bevel gear transmission 1.2 meshes with the driven spur gear of the first-stage transmission 1.1 of the cutting reducer. The driven bevel gear of the second-stage bevel gear transmission 1.2 is connected to the intermediate shaft 1.5 via bolts and a stop. The intermediate shaft 1.5 is provided with internal splines at both ends. The internal spline on the left side of the intermediate shaft 1.5 connects to the external spline of the sun gear in the third-stage planetary transmission on the left side of the cutting reducer, realizing power output to the left side. The internal spline on the right side of the intermediate shaft 1.5 connects to the external spline of the sun gear in the third-stage planetary transmission on the right side of the cutting reducer, realizing power output to the right side.

[0023] Figure 2 This is a working principle diagram of the intelligent test device for the cutting reducer of an integrated anchor and mining machine. The device includes a dynamometer 2.1, coupling I 2.2, a test reducer 2.3, coupling II 2.4, a torque sensor 2.5, a bearing seat 2.6, a universal joint shaft 2.7, a connecting flange 2.8, an intelligent measurement and control system 2.9, a cutting reducer drive motor 2.10, a power distribution control cabinet 2.11, an 1140V / 380V transformer 2.12, a frequency converter I 2.13, a frequency converter II 2.14, a chiller 2.15, a host industrial computer, and a data acquisition module.

[0024] The cutting reducer drive motor 2.10 is located in the middle of the cutting reducer 1 to be tested and is connected to the input shaft of the cutting reducer 1 to be tested, providing power to the cutting reducer 1 to be tested. After the cutting reducer 1 to be tested reduces speed and increases torque, the power is split and output from the left and right sides of the cutting reducer 1 respectively. The input end of the universal joint transmission shaft 2.7 is connected to the output shaft of the cutting reducer 1 to be tested via a connecting flange 2.8, and the output end is connected to the input end of the torque sensor 2.5 via a bearing seat 2.6. The output end of the torque sensor 2.5 is connected to the input shaft of the test reducer 2.3 via a coupling II 2.4. The output shaft of the test reducer 2.3 is connected to the input end of the dynamometer 2.1 via a coupling I 2.2.

[0025] The cutting reducer 1 to be tested is powered by the cutting reducer drive motor 2.10 and then passes through the four-stage transmission of the cutting reducer to achieve left and right synchronous power diversion.

[0026] Because the cutter reducer 1 under test implements power splitting after the second-stage bevel gear transmission, if a load test is performed on either the left or right side of the cutter reducer 1, only 50% of the load can be met in the first-stage spur gear transmission and the second-stage bevel gear transmission of the cutter reducer 1 under test. However, if a load test is performed on both the left and right sides of the cutter reducer 1 under test, 100% of the load can be met in the first-stage spur gear transmission and the second-stage bevel gear transmission of the cutter reducer 1 under test. Using this intelligent test device for cutter reducers in integrated miners and anchorers, it is possible to innovatively and simultaneously perform load tests on both output ends of the cutter reducer 1 under test, while simultaneously performing 100% load tests on the first-stage spur gear transmission and the second-stage bevel gear transmission of the cutter reducer 1 under test.

[0027] The rated voltage of the cutting reducer drive motor 2.10 is 1140V. In order to adapt to the voltage of the cutting reducer drive motor 2.10, the factory power supply voltage is 1140V.

[0028] Dynamometer 2.1 is an AC electric dynamometer with a rated voltage of 380V, which is composed of a three-phase AC commutator motor, a dynamometer, and a tachometer generator; it can operate as an AC generator to provide a load for the cutting reducer 1 to be tested and measure the output torque of the cutting reducer 1 to be tested, and it can also operate as an AC motor to drive the cutting reducer 1 to be tested and measure the input torque of the cutting reducer 1 to be tested; the AC electric dynamometer also has an energy feedback function, which can feed back the energy generated by the cutting reducer 1 to be tested to the power grid in the form of electrical energy for use by other equipment, instead of converting the energy into heat energy for consumption.

[0029] To achieve energy feedback for electric dynamometer 2.1, the plant's 1140V voltage is supplied via an 1140V / 380V transformer 2.12. The plant's 1140V power distribution system passes through a power distribution control cabinet 2.11, with the first route directly supplying power to the cutting reducer drive motor 2.10. The second route, after passing through an 1140V / 380V transformer 2.12, is connected to frequency converter controller I 2.13 and frequency converter controller II 2.14, respectively, to power the two dynamometers 2.1. Frequency converter controller I 2.13 and frequency converter controller II 2.14 serve as the power control cabinets for the two electric dynamometers 2.1, respectively, enabling load startup, speed regulation, and energy-saving control.

[0030] Torque sensor 2.5 is a flange-type large-range torque sensor with a short axial dimension, which matches the full-load output torque of the cutting reducer.

[0031] Test reducer 2.3 has a transmission ratio of 16:1, increasing speed and reducing torque on the load. It works in conjunction with dynamometer 2.1 to load the cutting reducer in stages from 0%, 20%, 40%, 60%, 80%, 100%, and 120%. Chiller 2.15 cools the cutting reducer's drive motor 2.10 and test reducer 2.3.

[0032] The above-mentioned cutting reducer intelligent test bench also includes a stand for fixing the cutting reducer to be tested 1, the bearing seat 2.6, the accompanying test reducer 2.3 and the electric dynamometer 2.1, and a cast iron platform connected thereto.

[0033] Figure 3 This is a control flow chart of the intelligent test device for the cutting reducer of an integrated anchoring and mining machine. Load information is input to the upper-level industrial computer using a mouse and / or keyboard. The upper-level industrial computer transmits the load information to the intelligent measurement and control system 2.9. Intelligent measurement and control system 2.9 calculates and matches the load information with the parameters of the cutting reducer 1 to be tested, collected in real time by the data acquisition module, and transmits the calculated structure to frequency conversion controller I 2.13 and frequency conversion controller II 2.14. Frequency conversion controller I 2.13 and frequency conversion controller II 2.14 respectively control the speed, torque, current, and voltage parameters of two dynamometers 2.1. Simultaneously, the two dynamometers 2.1 transmit the speed, torque, current, and voltage parameters to the intelligent measurement and control system 2.9. A display and / or printer displays the output torque, temperature, and speed of the cutting reducer 1 to be tested, the output torque, speed, voltage, and current of the dynamometer 2.1, and the water pressure and water flow of the chiller 2.15.

[0034] The working process of the above-mentioned intelligent test device for the cutting reducer of the integrated miner and anchor machine is as follows:

[0035] S1, connect the output shafts on both sides of the cutter reducer 1 to be tested to the universal transmission shaft 2.7 in the above-mentioned intelligent test device for the cutter reducer of the anchoring and mining machine;

[0036] S2, no-load operation: After the cutting reducer drive motor 2.10 is started, the cutting reducer 1 to be tested is operated at the rated speed for a preset time. After the intelligent test device for the cutting reducer of the anchoring and mining machine and the cutting reducer to be tested are operating normally (after half an hour of operation, all connectors and fasteners must be intact, all seals and joints must not leak or seep oil, the operation must be smooth and without shock, and the bearing and oil pool temperatures must be normal), proceed to step S3;

[0037] S3, load operation: Use the mouse and / or keyboard to input the load speed and operating time into the upper-level industrial computer at the rated power of 0%, 20%, 40%, 60%, 80%, 100%, and 120%. The upper-level industrial computer transmits the load information to the intelligent measurement and control system 2.9. Intelligent measurement and control system 2.9 matches the load information with the parameters of the cutting reducer 1 to be tested, which are collected in real time by the data acquisition module, and transmits the calculation results to frequency conversion controller I 2.13 and frequency conversion controller II 2.14. Frequency conversion controller I 2.13 and frequency conversion controller II 2.14 respectively control the speed, torque, current, and voltage parameters of the two dynamometers 2.1. Simultaneously, the two dynamometers 2.1 transmit the speed, torque, current, and voltage parameters to the intelligent measurement and control system 2.9.

[0038] To save space in the intelligent test device for the cutter reducer of the anchor-mining machine, no torque sensor is installed between the cutter reducer drive motor 2.1 and the cutter reducer 1 to be tested. The input speed and torque of the cutter reducer 1 to be tested are calculated using the following formula:

[0039] i=n1 / n2;

[0040] T1=9550P / n1;

[0041] T2=9550ηP / n2;

[0042] Where: i—the transmission ratio of the cutting reducer to be tested, which is a fixed value;

[0043] n1—input speed of the cutting reducer to be tested, rpm;

[0044] n2—output speed of the cutting reducer to be tested, rpm;

[0045] T1—input torque of the cutting reducer to be tested, N·m;

[0046] P—rated power of the cutting reducer to be tested, kW;

[0047] T2—output torque of the cutting reducer to be tested, N·m;

[0048] η—Transmission efficiency of the cutting reducer to be tested.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An intelligent test device for a cutting reducer of an integrated anchoring and mining machine, comprising a cutting reducer drive motor, a universal drive shaft, a torque sensor, a test reducer, a dynamometer, a frequency converter I, a frequency converter II, an intelligent measurement and control system, a host industrial computer, and a data acquisition module. It is characterized by: The cutting reducer drive motor is connected to the cutting reducer to be tested; The input ends of the two sets of universal joints are used to connect to the output shafts on both sides of the cutting reducer to be tested respectively. The output ends of the universal joints are connected to the input end of the torque sensor through the bearing seat. The output end of the torque sensor is connected to the input shaft of the test reducer through coupling II. The output shaft of the test reducer is connected to the input end of the dynamometer through coupling I. The data acquisition module is used to collect the parameters of the cutting reducer to be tested in real time; The input end of the intelligent measurement and control system is connected to the output end of the upper industrial computer, the output end of the data acquisition module and the output end of the two dynamometers. The output end of the intelligent measurement and control system is connected to the input end of the frequency conversion controller I and the frequency conversion controller II. The output end of the frequency conversion controller I and the frequency conversion controller II are respectively connected to the control end of the two dynamometers.

2. The intelligent testing device for the cutting reducer of the anchoring and digging machine according to claim 1 is characterized in that: The cutting reducer drive motor is connected to the input shaft of the cutting reducer to be tested; The input end of the universal joint shaft is connected to the output shaft of the cutting reducer to be tested through a connecting flange.

3. The intelligent testing device for the cutting reducer of the integrated miner and anchoring machine according to claim 2 is characterized in that: The torque sensor is a flange type torque sensor; The transmission ratio of the test reducer is 16:

1.

4. The intelligent testing device for the cutting reducer of the integrated miner and anchoring machine according to claim 3 is characterized in that: The rated voltage of the cutting reducer drive motor is 1140V; The dynamometer is an AC electric dynamometer with a rated voltage of 380V; It also includes power distribution control cabinet and 1140V / 380V transformer; The voltage of the factory building is 1140V. The power is distributed through the power distribution control cabinet. The first route directly supplies power to the cutting reducer drive motor. The second route passes through the 1140V / 380V transformer and is connected to the frequency conversion controller I and frequency conversion controller II. The frequency conversion controller I and frequency conversion controller II are respectively connected to two dynamometers.

5. The intelligent testing device for the cutting reducer of the integrated miner and anchoring machine according to claim 4 is characterized in that: It also includes a chiller for cooling the cutting reducer drive motor and the accompanying test reducer.

6. The intelligent testing device for the cutting reducer of the integrated miner and anchoring machine according to claim 5 is characterized in that: It also includes a mouse and / or keyboard connected to the input end of the upper industrial computer; and a display and / or printer connected to the output end of the upper industrial computer.

7. The intelligent testing device for the cutting reducer of the integrated miner and anchoring machine according to claim 6 is characterized in that: It also includes a test bench for fixing the cutting reducer to be tested, a bearing seat, a test reducer and a dynamometer, and a cast iron platform connected to the test bench.

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