A rock drill performance test system and method

Abstract

The application discloses a rock drill performance test system and method, the rock drill performance test system includes electric control cabinet, console, data acquisition instrument, hydraulic pump station, water pump, control valve group, test bench; the rock drill performance test method includes rotation performance test, impact performance test, operation consistency test and pressure resistance test. The application can realize the detection of fault points to meet the product test requirements, and all test functions of the measured rock drill are integrated on one test bench for testing without switching between different test benches, the test efficiency is improved, the whole test loading process is automatically performed, the working strength of the operator is reduced, the influence of personnel operation on the test precision is reduced, the position of the rock drill prone to faults can be efficiently detected, and the demands of the batch production product delivery test and the new model product type test are met.

Description

Technical Field

[0001] The present application relates to the field of rock drill testing technology, and in particular, to a rock drill performance testing system and method. Background Art

[0002] Currently, rock drills are core equipment in tunnel construction machinery. Their performance directly impacts construction progress, so they require performance testing before leaving the factory. Existing testing methods often rely on hitting rocks and human operators to load and record data. This makes it difficult to accurately record equipment test data. Furthermore, the testing procedures are limited, cumbersome, and subject to significant human influence, resulting in low test consistency. Summary of the Invention

[0003] The present application provides a rock drill performance testing system to solve the technical problems of existing rock drill performance testing, such as single testing items, complicated operation, significant influence by human factors, and low test consistency.

[0004] This application is implemented through the following scheme:

[0005] A rock drill performance test system includes an electric control cabinet, a control console, a data acquisition instrument, a hydraulic pump station, a water pump, a control valve group, and a test bench, wherein:

[0006] The electric control cabinet is used to control system loading and power supply;

[0007] The console is respectively connected to the electric control cabinet, data acquisition instrument, external power supply, cooling water and compressed air supply device, and is used to control the electric control cabinet and data acquisition instrument according to the operator's instructions, and output a test report based on the data collected by the data acquisition instrument;

[0008] The data acquisition instrument is respectively connected to the control valve group, test bench, electric control cabinet, and control console circuit for collecting test data;

[0009] The hydraulic pump station is connected to the electric control cabinet circuit and to the control valve group pipeline, and is used for hydraulic loading of the tested rock drill;

[0010] The water pump is connected to the electric control cabinet circuit and to the control valve group pipeline for cooling the rock drill under test;

[0011] The control valve group is connected to the data acquisition instrument and the electric control cabinet circuit, and is respectively connected to the control valve group, the water pump and the test bench pipeline, and is used to control the hydraulic fluid to flow into the test bench according to the set logic;

[0012] The test bench is connected to the data acquisition instrument circuit and the control valve group pipeline, and is used to install the rock drill under test and the corresponding pressure, flow, and strain sensors. It automatically completes multiple functional test processes such as impact, rotation, consistency, and simulated eccentric load for the rock drill under test installed in the test position in a set order.

[0013] Furthermore, the test bench includes an impact load device, a rotary load device, an offset load device, and a test position of the rock drill to be tested, which are arranged in sequence. During the test, after the rock drill to be tested is installed at the test position of the rock drill to be tested, the impact load device, the rotary load device, and the offset load device automatically complete the rotation performance test, impact performance test, consistency test, offset test, and pressure resistance test of the rock drill to be tested in a set order.

[0014] Furthermore, the data acquisition instrument, electric control cabinet and control console are of integrated design.

[0015] Furthermore, the hydraulic pump station and the water pump station are of integrated design.

[0016] Furthermore, the control valve group and the test bench are of integrated design.

[0017] On the other hand, the present application further provides a rock drill performance testing method, based on the rock drill performance testing system, comprising the steps of:

[0018] The rock drill rotation performance test controls the hydraulic pump station and control valve group to supply oil to the rotary oil inlet of the rock drill under test at a set flow rate and adjusts multiple flow rates in sequence. The speed of the rock drill under test is measured with a sensor. At the same time, a rotary load is applied to the rock drill under test through the test bench. The data during the test process is read and recorded, including pressure, flow rate, speed of the rock drill under test, and output torque.

[0019] Rock drill impact performance test: Control the hydraulic pump station and control valve group to supply oil to the impact oil inlet of the rock drill under test at a set pressure and adjust multiple pressures in sequence. Use a pressure sensor to measure the pressure change of the impact inlet of the rock drill under test. At the same time, apply an impact load to the rock drill under test through the test bench, and measure the strain μ through the strain measurement device. s , read and record the impact pressure P during the test H , impact flow data Q H , and then calculate the impact energy and impact frequency data;

[0020] Rock drill consistency test: Control the hydraulic pump station and control valve group to supply oil to the impact oil inlet and rotary oil supply port of the rock drill under test at a set pressure and adjust multiple pressures in sequence. Use a pressure sensor to measure the change in the impact inlet pressure of the rock drill under test. Simultaneously, apply rotary load and impact load to the rock drill through the test bench. Read and record the pressure, flow rate, speed and torque output data during the test. Compare the measured data with the standard data to determine whether the rock drill meets the consistency standard.

[0021] The rock drill pressure test controls the hydraulic pump station and control valve group to supply fluid to the fluid inlet of the rock drill under test at a set pressure and adjusts multiple pressures in sequence. The rock drill is monitored with a camera to see if there is any leakage of oil or water working medium.

[0022] Furthermore, the method further comprises the steps of:

[0023] During the rock drill rotation performance test, rock drill impact performance test and rock drill consistency test, a radial offset load is applied to the rock drill under test through the test bench to simulate the offset load force on the rock drill under test in actual working conditions. The pressure, flow rate, speed and output torque of the rock drill under test are read and recorded during the test.

[0024] Furthermore, when testing the rotary performance of the rock drill, the relevant sensors are used to read the data including the pressure P of the rotary motor of the rock drill being tested. R and flow Q R , the pressure P of the rotary load device RL , then combine the motor displacement q0 and efficiency η of the rotary load device m , the output torque of the rock drill under test is calculated as T=P RL q0 / 2πη m Finally, the speed of the rock drill being measured is calculated by reading the number of sensor gear teeth that pass per unit time.

[0025] Furthermore, during the rock drill rotation performance test, the output torque of the rock drill under test is directly measured by a torque sensor.

[0026] Furthermore, during the rock drill impact performance test, the impact energy e is obtained by integrating the stress amplitude:

[0027]

[0028] Where E is Young's modulus, a is the cross-sectional area of ​​the connecting sleeve with the strain gauge, R is the stress amplitude at the integration point, c is the speed of sound in the connecting sleeve, j is the number of integration points, Δt is the stress duration of each interval, and the impact frequency is obtained by Fourier transforming the impact pressure signal.

[0029] Compared with the existing technology, this application has the following beneficial effects:

[0030] The present invention provides a rock drill performance testing system and method. The rock drill performance testing system includes an electrical control cabinet for controlling system loading and power supply, a control console for receiving and sending commands and outputting test reports, a data acquisition instrument for collecting test data, a hydraulic pump station for hydraulically loading the rock drill under test, a water pump for cooling the rock drill under test, a control valve group for controlling the hydraulic fluid, and a test bench. The test bench is connected to the data acquisition instrument circuit and the control valve group pipelines, and is used to install the rock drill under test and corresponding pressure, flow, and strain sensors. The test bench automatically completes multiple functional testing processes for the rock drill under test in a set sequence, including impact, rotation, and simulated eccentric load testing. The rock drill performance testing method includes a rotation performance test, an impact performance test, an operation consistency test, and a pressure resistance test. This application can detect fault points to meet product testing needs, and at the same time integrate all test functions of the rock drill under test on one test bench for testing without switching between different test benches, thereby improving test efficiency. The entire test loading process is carried out automatically, which not only reduces the workload of operators, but also reduces the impact of human operation on test accuracy. It can efficiently detect locations where rock drills are prone to failure, and at the same time meet the needs of factory testing of mass-produced products and type testing of new models.

[0031] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The drawings that constitute a part of this application are used to provide further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute improper limitations on this application.

[0033] Figure 1 It is a schematic diagram of the principle of the rock drill performance testing system of the preferred embodiment of the present application.

[0034] Figure 2 It is a schematic diagram of the test bench structure of the preferred embodiment of the present application.

[0035] Figure 3 It is a flow chart of the rock drill performance testing method according to the preferred embodiment of the present application.

[0036] Figure 4 It is a flow chart of a rock drill performance testing method according to another preferred embodiment of the present application.

[0037] Figure 5 This is a diagram of the rotation speed detection signal of the rock drill under test in the preferred embodiment of the present application.

[0038] Figure 6 This is a diagram of the impact strain detection signal of the rock drill under test in the preferred embodiment of the present application.

[0039] Figure 7 This is a diagram of the impact pressure detection signal of the tested rock drill in the preferred embodiment of the present application.

[0040] Figure 8 This is a Fourier transform frequency domain diagram of the impact pressure of the tested rock drill in the preferred embodiment of the present application.

[0041] Figure 9 It is a test flow diagram of a rock drill performance test system in another preferred embodiment of the present application.

[0042] In the figure: 1. Electric control cabinet; 2. Control console; 3. Data acquisition instrument; 4. Hydraulic pump station; 5. Hydraulic pump station; 6. Control valve group; 7. Test bench; 71. Impact load device; 72. Rotary load device; 73. Eccentric load device; 74. Rock drill under test. DETAILED DESCRIPTION

[0043] The embodiments of the present application are described in detail below with reference to the accompanying drawings, but the present application can be implemented in a variety of different ways defined and covered below.

[0044] like Figure 1 As shown, the preferred embodiment of the present application provides a rock drill performance test system, including an electric control cabinet 1, a control console 2, a data acquisition instrument 3, a hydraulic pump station 4, a water pump 5, a control valve group 6, and a test bench 7, wherein:

[0045] The electric control cabinet 1 is used to control the system loading and power supply;

[0046] The control console 2 is respectively connected to the electric control cabinet 1, the data acquisition instrument 3, the external power supply, the cooling water and the compressed air supply device, and is used to control the electric control cabinet 1 and the data acquisition instrument 3 according to the operator's instructions, and output a test report based on the data collected by the data acquisition instrument 3;

[0047] The data acquisition instrument 3 is respectively connected to the control valve group 6, the test bench 7, the electric control cabinet 1, and the control console 2 for collecting test data;

[0048] The hydraulic pump station 4 is connected to the electric control cabinet 1 and is connected to the control valve group 6 by pipeline, and is used for hydraulic loading of the rock drill under test;

[0049] The water pump 5 is connected to the electric control cabinet 1 and is connected to the control valve group 6 by pipeline for cooling the rock drill under test;

[0050] The control valve group 6 is connected to the data acquisition instrument 3 and the electric control cabinet 1, and is respectively connected to the control valve group 6, the water pump 5 and the test bench 7 by pipeline, so as to control the hydraulic fluid to flow into the test bench 7 according to the set logic;

[0051] The test bench 7 is connected to the data acquisition instrument 3 circuit and the control valve group 6 pipeline, and is used to install the rock drill under test and the corresponding pressure, flow, and strain sensors. It automatically completes multiple functional test processes such as impact, rotation, consistency, and simulated eccentric load for the rock drill under test installed in the test position in a set order.

[0052] The rock drill performance testing system of this embodiment includes an electrical control cabinet 1 for controlling system loading and power supply, a control console 2 for receiving and sending commands and outputting test reports, a data acquisition device 3 for collecting test data, a hydraulic pump station 4 for hydraulically loading the rock drill under test, a water pump 5 for cooling the rock drill under test, a control valve assembly 6 for controlling the hydraulic fluid, and a test bench 7. The test bench 7 is electrically connected to the data acquisition device 3 and piped to the control valve assembly 6. The test bench 7 is used to mount the rock drill under test and corresponding pressure, flow, and strain sensors. The system automatically performs multiple functional tests, including impact, rotation, and simulated eccentric loads, on the rock drill installed in the test position in a pre-set sequence. The testing system of this embodiment simultaneously integrates all test functions for the rock drill under test on a single test bench, eliminating the need to switch between different test benches. This improves testing efficiency and automates the entire test loading process, reducing operator workload and the impact of operator operation on test accuracy. This system allows for efficient detection of rock drill failure-prone locations, meeting the requirements for factory testing of mass-produced products and type testing of new models.

[0053] Preferably, if Figure 2 As shown, the test bench 7 includes an impact load device 71, a rotary load device 72, an offset load device 73, and a test position of the rock drill to be tested, which are arranged in sequence. During the test, after the rock drill to be tested 74 is installed at the test position of the rock drill to be tested, the impact load device 71, the rotary load device 72, and the offset load device 73 automatically complete the rotation performance test, impact performance test, consistency test, offset test, and pressure resistance test of the rock drill to be tested in a set order.

[0054] The test bench 7 of this embodiment includes an impact load device 71, a rotary load device 72, an eccentric load device 73, and a test position for the rock drill to be tested, which are arranged in sequence. It has a compact structure, a small size, and a high degree of integration. It has multiple functions of impact, rotation, and simulated eccentric load on one test bench. After the rock drill to be tested is installed at the test position during the test, the test process can be completed in sequence. All test functions are integrated on one test bench for testing without switching between different functional test benches, which improves the test efficiency, reduces the workload of the operator, and reduces the impact of human operation on the test accuracy. It can efficiently detect the positions of the rock drill that are prone to failure, and at the same time meet the needs of factory testing of mass-produced products and type testing of new models of products.

[0055] Preferably, the data acquisition instrument 3, the electric control cabinet 1 and the control console 2 are of an integrated design with a compact structure, a small volume and a high degree of integration.

[0056] Preferably, the hydraulic pump station 4 and the water pump station 5 are of integrated design, with compact structure, small volume and high integration.

[0057] Preferably, the control valve group 6 and the test bench 7 are of an integrated design with a compact structure, small volume and high integration.

[0058] like Figure 3 As shown, another preferred embodiment of the present application further provides a rock drill performance testing method, based on the rock drill performance testing system, comprising the steps of:

[0059] S1, rock drill rotation performance test, control the hydraulic pump station 4 and control valve group 6 to supply oil to the rotary oil inlet of the rock drill under test at a set flow rate and adjust multiple flow rates in sequence, measure the speed of the rock drill under test with a sensor, and simultaneously apply a rotary load to the rock drill under test 74 through the rotary load device 72, reading and recording the data during the test, including pressure, flow rate, speed of the rock drill under test, and output torque;

[0060] S2. Rock drill impact performance test: Control the hydraulic pump station 4 and the control valve group 6 to supply oil to the impact oil inlet of the rock drill under test at the set pressure and adjust multiple pressures in sequence. Use the pressure sensor to measure the impact inlet pressure change of the rock drill under test. At the same time, apply an impact load to the rock drill under test 74 through the impact load device 71, and measure the strain μ by the strain measuring device. s , read and record the impact pressure P during the test H , impact flow data Q H , and then calculate the impact energy and impact frequency data;

[0061] S3: Rock drill consistency test. The hydraulic pump station 4 and the control valve group 6 are controlled to supply oil to the impact oil inlet and the rotary oil supply port of the rock drill under test at a set pressure and multiple pressures are adjusted in sequence. The pressure sensor is used to measure the pressure change of the impact inlet of the rock drill under test. At the same time, a rotary load is applied to the rock drill through the rotary load device 72, and an impact load is applied to the rock drill under test 74 through the impact load device 71. The pressure, flow rate, speed, and torque output data during the test are read and recorded. The measured data are compared with the standard data to determine whether the rock drill conforms to the standard.

[0062] S4: Pressure test of the rock drill. The hydraulic pump station 4 and the control valve group 6 are controlled to supply fluid to the fluid inlet of the rock drill under test at the set pressure and multiple pressures are adjusted in sequence. The camera is used to monitor whether there is any leakage of oil or water working medium in the rock drill.

[0063] The rock drill performance testing method of this embodiment includes a rotational performance test, an impact performance test, an operational consistency test, and a pressure test. It can measure the rock drill's maximum speed, torque, impact frequency, impact energy, and the consistency of the equipment over a period of operation, fully testing the various performance characteristics of the rock drill. This embodiment can detect fault points to meet product testing requirements. It also integrates all test functions for the rock drill under test on a single test bench, eliminating the need to switch between different test benches. This improves testing efficiency. The entire test loading process is automated, reducing the operator's workload and the impact of human operation on test accuracy. This allows for efficient detection of rock drill fault-prone locations, meeting the requirements for factory testing of mass-produced products and type testing of new models.

[0064] like Figure 4 As shown, in another preferred embodiment of the present application, the rock drill performance testing method further includes the steps of:

[0065] S5. During the rock drill rotation performance test, rock drill impact performance test and rock drill consistency test, a radial offset load is applied to the rock drill 74 under test through the offset load device 73 to simulate the offset load force on the rock drill under test in actual working conditions, and the pressure, flow rate, speed of the rock drill under test and output torque during the test are read and recorded.

[0066] In this embodiment, during the rock drill rotation performance test, rock drill impact performance test and rock drill consistency test, a radial offset load is applied to the rock drill 74 under test through the offset load device 73 to simulate all the offset load forces of the rock drill under test in actual working conditions, which is closer to the working state of the equipment in actual rotation and impact overload, thereby ensuring the authenticity and reliability of the test results.

[0067] In a preferred embodiment of the present application, when testing the rotary performance of the rock drill, the relevant sensors are used to read the data including the pressure P of the rotary motor of the rock drill being tested. R and flow Q R , the pressure P of the rotary load device 72 RL , then combine the motor displacement q0 and efficiency η of the rotary load device 72 m , the output torque of the rock drill under test is calculated as T=P RL q0 / 2πη m Finally, the measured rock drill speed is calculated by reading the number of sensor gear teeth that pass through per unit time (see Figure 5 ).

[0068] This embodiment uses the pressure P of the rotary motor of the rock drill to be tested. R and flow Q R , the pressure P of the rotary load device 72 RL , then combine the motor displacement q0 and efficiency η of the rotary load device 72 m , thereby calculating the output torque of the rock drill under test. Its advantages include: using the relevant parameters of the rotary load device to indirectly calculate the torque method has better resistance to shock vibration, oil and water pollution, and is not easy to damage compared to direct measurement using torque sensors.

[0069] In a preferred embodiment of the present application, when testing the rotation performance of the rock drill, the output torque of the rock drill under test is directly measured by a torque sensor, without the need to collect multiple parameters for calculation. The test is simple and fast, reducing the system's requirements for computing power.

[0070] In a preferred embodiment of the present application, during the rock drill impact performance test, the impact energy e is obtained by integrating the stress amplitude:

[0071]

[0072] Where E is Young's modulus, a is the cross-sectional area of ​​the connecting sleeve with the strain gauge, and R is the stress amplitude at the integration point (see Figure 6 ), c is the speed of sound in the connecting sleeve, j is the number of integration points, Δt is the stress duration of each interval, and the impact frequency is obtained by converting the impact pressure signal (see Figure 7 ) is Fourier transformed to obtain (see Figure 8 ).

[0073] In this embodiment, when performing the rock drill impact performance test, the impact energy e is obtained by integrating the stress amplitude. The advantages include:

[0074] 1. The impact energy of the rock drill under test can be accurately obtained to evaluate the impact performance of the rock drill;

[0075] 2. The test bench integrates stress detection and impact energy functions, providing more comprehensive rock drill performance testing capabilities.

[0076] like Figure 9 The figure shows a schematic diagram of the operating process of a rock drill performance test system in another preferred embodiment. During the test process, various sensors are used to monitor various parameters of the product test process for test result determination. Rotational performance testing, impact performance testing, consistency testing, and pressure resistance testing are performed sequentially according to the test method. The data from each sensor can also be used to determine the system's operating status. If the data deviates from the design value, the data is recorded and the test is returned to the initial state. After the fault is corrected, the test can be continued. Similarly, to ensure the stable operation, safety and reliability of the test system itself, the system is equipped with hydraulic oil level sensors, hydraulic oil temperature sensors, coolant level sensors, coolant temperature sensors, and compressed air pressure sensors to detect system operation. In the event of an abnormality in the system, the system will shut down immediately to protect personnel and equipment, thereby improving the safety and reliability of the system.

[0077] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present application.

[0078] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

Claims

1. A rock drill performance test method, based on a rock drill performance test system, wherein the rock drill performance test system comprises an electric control cabinet (1), a control console (2), a data acquisition instrument (3), a hydraulic pump station (4), a water pump (5), a control valve group (6), and a test bench (7), wherein: The electric control cabinet (1) is used to control the system loading and power supply; the console (2) is respectively connected to the electric control cabinet (1), the data acquisition instrument (3), the external power supply, the cooling water and the compressed air supply device, and is used to control the electric control cabinet (1) and the data acquisition instrument (3) according to the operator's instructions, and output a test report based on the data collected by the data acquisition instrument (3); the data acquisition instrument (3) is respectively connected to the control valve group (6), the test bench (7), the electric control cabinet (1), and the console (2) for test data collection; the hydraulic pump station (4) is connected to the electric control cabinet (1) circuit and is connected to the control valve group (6) pipeline for hydraulic loading of the tested rock drill; the water pump (5 ... the data acquisition instrument (3) according to the operator's instructions, and outputs a test report based on the data collected by the data acquisition instrument (3); the data acquisition instrument (3) is respectively connected to the control valve group (6), the test bench (7), the electric control cabinet (1), and the console (2) circuit for test data collection. The control cabinet (1) is connected to the circuit and the control valve group (6) pipeline for cooling the rock drill under test; the control valve group (6) is connected to the data acquisition instrument (3) and the electric control cabinet (1) circuit, and is respectively connected to the control valve group (6), the water pump (5) and the test bench (7) pipeline for controlling the hydraulic fluid to flow into the test bench (7) according to the set logic; the test bench (7) is connected to the circuit of the data acquisition instrument (3) and the control valve group (6) pipeline for installing the rock drill under test and corresponding pressure, flow and strain sensors, and automatically completes the impact, rotation, consistency and simulated eccentric load multiple function test processes of the rock drill under test installed in the test position according to the set sequence; it is characterized by comprising the steps of: A rock drill rotary performance test is performed by controlling a hydraulic pump station (4) and a control valve group (6) to supply oil to a rotary oil inlet of the rock drill under test at a set flow rate and adjusting multiple flow rates in sequence, measuring the rotation speed of the rock drill under test with a sensor, and applying a rotary load to the rock drill under test (74) through a test bench (7), reading and recording data during the test process, including pressure, flow rate, rotation speed of the rock drill under test, and output torque; In the rock drill impact performance test, the hydraulic pump station (4) and the control valve group (6) are controlled to supply oil to the impact oil inlet of the rock drill under test at a set pressure and multiple pressures are adjusted in sequence. The pressure sensor is used to measure the pressure change of the impact inlet of the rock drill under test. At the same time, an impact load is applied to the rock drill under test (74) through the test bench (7). The strain μ is measured by the strain measuring device. s , read and record the impact pressure P during the test H , impact flow data Q H , and then calculate the impact energy and impact frequency data; Rock drill consistency test, controlling the hydraulic pump station (4) and the control valve group (6) to supply oil to the impact oil inlet and the rotary oil supply port of the rock drill under test at a set pressure and adjusting multiple pressures in sequence, measuring the impact inlet pressure change of the rock drill under test with a pressure sensor, and applying a rotary load and an impact load to the rock drill through a test bench (7), reading and recording the pressure, flow, speed and torque output data during the test, and comparing the measured data with the standard data to determine whether the rock drill consistency meets the standard; In the rock drill pressure test, the hydraulic pump station (4) and the control valve group (6) are controlled to supply fluid to the fluid inlet of the rock drill under test at a set pressure and multiple pressures are adjusted in sequence, and a camera is used to monitor whether the rock drill has any leakage of oil or water working medium.

2. The rock drill performance testing method according to claim 1, characterized in that: Also includes the steps: During the rock drill rotation performance test, rock drill impact performance test and rock drill consistency test, a radial offset load is applied to the rock drill (74) under test via a test bench (7) to simulate the offset load force to which the rock drill under test is subjected in actual working conditions, and data including pressure, flow, speed of the rock drill under test and output torque during the test are read and recorded.

3. The rock drill performance testing method according to claim 1, wherein: When testing the rotary performance of the rock drill, first read the data through the relevant sensors, including the pressure P of the rotary motor of the rock drill being tested. R and flow Q R , the pressure P of the rotary load device (72) RL , then combine the motor displacement q0 and efficiency η of the rotary load device (72) m , the output torque of the rock drill under test is calculated as T=P RL q0 / 2πη m Finally, the speed of the rock drill being measured is calculated by reading the number of sensor gear teeth that pass per unit time.

4. The rock drill performance testing method according to claim 1, characterized in that: During the rock drill rotation performance test, the output torque of the rock drill under test is directly measured by a torque sensor.

5. The rock drill performance testing method according to claim 1, characterized in that: When testing the impact performance of the rock drill, the impact energy e By integrating the stress amplitude, we get: ； in, E is Young's modulus, a is the cross-sectional area of ​​the connecting sleeve with the strain gauge, R is the stress amplitude at the integration point, c is the speed of sound in the connecting sleeve, j is the number of integration points, Δ t For each interval of stress duration, the impact frequency was obtained by Fourier transforming the impact pressure signal.

6. The rock drill performance testing method according to claim 1, characterized in that: The test bench (7) comprises an impact load device (71), a rotary load device (72), an offset load device (73), and a test position of a rock drill to be tested, which are arranged in sequence. During the test, after the rock drill to be tested (74) is installed at the test position of the rock drill to be tested, the impact load device (71), the rotary load device (72), and the offset load device (73) automatically complete the rotary performance test, the impact performance test, the consistency test, the offset test, and the pressure resistance test of the rock drill to be tested in a set order.

7. The rock drill performance testing method according to claim 1, characterized in that: The data acquisition instrument (3), the electric control cabinet (1), and the control console (2) are of an integrated design.

8. The rock drill performance testing method according to claim 1, characterized in that: The hydraulic pump station (4) and the water pump (5) are of integrated design.

9. The rock drill performance testing method according to claim 1, characterized in that: The control valve group (6) and the test bench (7) are of integrated design.

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