Multi-energy adaptive switching high-precision dynamometer device

Abstract

The invention relates to the technical field of dynamometers, and discloses a multi-energy self-adaptive switching high-precision dynamometer device which comprises a rack assembly, an elastic coupling assembly is arranged at the left end of the top side of the rack assembly, and a hydraulic dynamometer mechanism, an electric dynamometer assembly and a total dynamometer mechanism are sequentially arranged on the right side of the elastic coupling assembly. The elastic coupling assembly, the hydraulic dynamometer mechanism, the electric dynamometer assembly and the total dynamometer mechanism are coaxially connected in series. Through the construction of an integrated power transmission and power measurement link, i.e., an elastic coupling assembly, a hydraulic power measurement mechanism, an electric power measurement assembly and a total power measurement mechanism are coaxially connected in series, the high efficiency and stability of power transmission are ensured, the energy loss is greatly reduced, and the power measurement accuracy is improved; the dynamometer head penetrates through the axis of the elastic coupling assembly to provide a precise butt joint channel for access of an external power source, and meanwhile, the water supply assembly conveys cooling water to the hydraulic dynamometer mechanism through the side wall of the dynamometer head, so that the overall layout of the equipment is compact and reasonable.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dynamometers, in particular to a high-precision dynamometer device with multi-energy adaptive switching. BACKGROUND

[0002] In the technical field of multi-energy dynamometers, the power transmission and dynamometer structure of traditional dynamometers are mostly dispersedly arranged, and various functional components (such as load mechanisms and measurement mechanisms) often have significant power transmission losses due to different shafts and large connection gaps, which not only reduces the dynamometer efficiency, but also easily affects the measurement accuracy due to vibration and deviation. At the same time, the overall layout of the equipment is loose, and the external power source needs to be connected with additional adapter structures, and the cooling water supply pipeline is independently arranged with the dynamometer mechanism, which further occupies space, resulting in large equipment floor area, complicated installation and maintenance, and difficulty in flexible adaptation to different working scenarios such as laboratories and production lines, which limits the compatibility and testing convenience of power equipment.

[0003] Traditional dynamometers lack intelligent collaborative control systems and mostly rely on single energy (such as water power and electric power) to realize load simulation. When facing different power and speed testing requirements, manual switching of energy or adjustment of equipment parameters is needed, which is slow in response and prone to interrupt testing during switching, and cannot realize efficient adaptation and utilization of energy. In addition, although some dynamometer devices are equipped with basic parameter measurement functions, the sensor data is disconnected from the control unit, which cannot provide real-time feedback and dynamic adjustment of the testing state, resulting in incomplete data collection and insufficient accuracy, which makes it difficult to provide accurate and continuous performance data support for host development optimization, and restricts the improvement of power equipment development efficiency and product quality. SUMMARY

[0004] The present application aims to solve the problems of traditional dynamometers, such as large transmission loss, low precision, loose layout, complicated installation and maintenance, poor adaptability, lack of intelligent collaborative control system, reliance on single energy, need for manual switching of energy or adjustment of parameters, and disconnection of sensor data from the control unit, which leads to incomplete data collection and insufficient accuracy. The present application provides a high-precision dynamometer device with multi-energy adaptive switching.

[0005] To achieve the above-mentioned purpose, the present application specifically adopts the following technical solutions: The utility model provides a kind of high-precision dynamometer device of multi-energy adaptive switching, including rack assembly, the top side left end of the rack assembly is provided with elastic coupling assembly, the elastic coupling assembly right is sequentially provided with hydraulic dynamometer mechanism, electric power dynamometer component, total dynamometer mechanism, the elastic coupling assembly, the hydraulic dynamometer mechanism, the electric power dynamometer component and the total dynamometer mechanism are in series on the same shaft, the right end of the rack assembly is provided with PLC, the top side of the rack assembly is located in the rear end of the elastic coupling assembly, the hydraulic dynamometer mechanism, the electric power dynamometer component and the total dynamometer mechanism is provided with frequency converter, heat dissipation component, the left end of the rack assembly is provided with water supply component, the right end of the rack assembly is provided with control component in front.

[0006] Further, the rack assembly includes a base and a dynamometer head, the elastic coupling assembly, the hydraulic dynamometer mechanism, the electric power dynamometer component, the total dynamometer mechanism, the frequency converter and the heat dissipation component are all arranged on the top side of the base, the dynamometer head penetrates the upper end side wall of the base, the upper end of the water supply component penetrates the side wall adjacent edge of the dynamometer head, the dynamometer head penetrates the shaft center of the elastic coupling assembly, and the output shaft of an external power source (such as a motor to be tested, an engine) is connected to the dynamometer head at the left end of the elastic coupling assembly.

[0007] Further, the elastic coupling assembly includes a key cap, a telescopic slide key, a telescopic frame and a support slide frame, the key cap is provided with two groups of keys located at the two ends of the telescopic slide key and the telescopic frame, the telescopic slide key is arranged around the side edge of the key cap, and the telescopic frame is arranged at the shaft center of the key cap. The elastic coupling assembly realizes preliminary positioning with the output shaft of the power source and the rotating shaft of the hydraulic dynamometer mechanism through the two end key caps.

[0008] Further, the hydraulic dynamometer mechanism includes a fluid switching valve and a hydraulic dynamometer component, the fluid switching valve is arranged at the left end of the hydraulic dynamometer component, the electric power dynamometer component is arranged at the right end of the hydraulic dynamometer component, when the PLC determines that the hydraulic dynamometer needs to be started according to the preset parameters, the output signal controls the fluid switching valve to open, and the cooling water of the water supply component enters the inside of the outer support of the hydraulic dynamometer component through the water pipe.

[0009] Further, the hydraulic dynamometer component includes a rotating shaft, an outer support and a rotor, the rotating shaft penetrates the shaft centers of the outer support and the rotor, the rotor is arranged on the inner side of the outer support, the torque output by the power source is transmitted to the rotating shaft through the elastic coupling assembly, drives the rotor on the inner side of the outer support to rotate at high speed, and the cooling water between the rotor and the outer support forms a hydraulic load under the action of centrifugal force.

[0010] Further, the electric power dynamometer assembly comprises a wire, an electric power dynamometer component and a relay, the wire is arranged at the left end of the electric power dynamometer component, the relay is arranged at the middle part of the wire, the right end of the wire is connected with the PLC, the wire connects the electric power dynamometer component and the PLC, the frequency converter adjusts the output voltage and frequency according to the PLC instruction to drive the electric power dynamometer component to operate.

[0011] Further, the total dynamometer mechanism comprises a torque sensor, a dynamometer force containing component, a heat sensitive component and a rotating speed sensor, the torque sensor is arranged between the torque sensor and the electric power dynamometer assembly, the heat sensitive component penetrates the inside left end of the dynamometer force containing component, and the rotating speed sensor is arranged at the right end of the dynamometer force containing component.

[0012] Further, the dynamometer force containing component comprises a support main shaft, a shell and a center main shaft, the support main shaft penetrates the shaft center of the shell, the center main shaft is arranged between the inside shaft center of the shell and the edge of the shell to build an L-shaped support, the heat sensitive component is arranged inside the support built by the shell and the center main shaft, and the support main shaft drives the center main shaft inside the shell to rotate synchronously; the torque sensor is connected in series between the electric power dynamometer assembly and the total dynamometer mechanism to directly collect the real-time torque transmitted by the shafting.

[0013] Further, the heat sensitive component comprises a heat sensor and a signal line, one end of the signal line is connected with the heat sensor, and the other end of the signal line away from the heat sensor is connected with the inside of the heat dissipation component; the heat sensor of the heat sensitive component (arranged inside the L-shaped support built by the shell and the center main shaft) monitors the temperature of the shafting and the dynamometer mechanism in real time, and the temperature data is transmitted to the heat dissipation component and the PLC through the signal line.

[0014] Further, the heat dissipation component comprises an outer box shell, a rotating motor and a fan, the air outlet of the outer box shell is opposite to the back of the total dynamometer mechanism, the rotating motor and the fan are located inside the outer box shell, and the output end of the rotating motor is connected with the rear shaft center of the fan; when the temperature exceeds the preset threshold value, the rotating motor of the heat dissipation component is started to drive the fan to rotate at high speed.

[0015] Further, the water supply component comprises a water supply tank and a water pipe, the bottom end of the water supply tank penetrates the inside top end of the water pipe, and the top end of the water supply tank penetrates the inside of the rack component; if the temperature continues to rise, the PLC further adjusts the flow of the water pipe of the water supply component to increase the supply of cooling water.

[0016] Further, the control assembly comprises a storage machine and a display panel, the display panel is arranged on the top of the storage machine, the storage machine and the PLC are connected through a signal transmission line, the display panel dynamically displays various parameters, which is convenient for the operator to monitor in real time, and the storage machine stores all the dynamometer data according to the time axis.

[0017] Compared with the prior art, the application provides a multi-energy adaptive switching high-precision dynamometer device, which has the following beneficial effects: 1. The multi-energy adaptive switching high-precision dynamometer device, through the construction of integrated power transmission and dynamometer link, i.e. coaxial series connection of elastic coupling assembly, hydraulic dynamometer assembly, electric dynamometer assembly and total dynamometer mechanism, ensures efficient and stable power transmission, greatly reduces energy loss and improves the accuracy of dynamometry; the dynamometer head penetrates the shaft center of the elastic coupling assembly, providing a precise docking channel for the connection of external power sources, and the water supply assembly supplies cooling water to the hydraulic dynamometer assembly through the side wall of the dynamometer head; the close cooperation of each component makes the overall layout of the equipment compact and reasonable, greatly improves the space utilization rate, reduces the floor area, and facilitates installation and maintenance, and is suitable for various working scenes, providing a solid foundation for performance testing of various power equipment.

[0018] 2. The multi-energy adaptive switching high-precision dynamometer device, through the PLC as the core control unit, is electrically connected with the electric dynamometer assembly, the frequency converter, the heat dissipation assembly and the control assembly to form an intelligent control system; when facing different testing requirements and working conditions, the system can quickly respond and automatically adjust the working state of each component to realize efficient switching and utilization of energy; through various sensors in the total dynamometer mechanism, data is fed back to the PLC in real time, and then displayed and stored by the control assembly, providing comprehensive and accurate data support for performance evaluation of power equipment, assisting research and development and optimization work, and effectively improving the research and development efficiency and product quality of power equipment. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The right three-dimensional view of the overall structure connection of the application is shown; Figure 2 The left three-dimensional view of the overall structure connection of the application is shown; Figure 3 The top view of the overall structure connection of the application is shown; Figure 4 The three-dimensional view of the structure of the elastic coupling assembly of the application is shown; Figure 5 The three-dimensional view of the structure of the hydraulic dynamometer assembly of the application is shown; Figure 6 The three-dimensional view of the structure of the total dynamometer mechanism and the heat dissipation assembly of the application is shown; Figure 7The left side of the three-dimensional view shows the structure of the total dynamometer mechanism of this invention; Figure 8 A three-dimensional perspective view showing the structure between the power measurement bearing component and the thermal component of this invention; Figure 9 A three-dimensional perspective view is provided to illustrate the control components and structure of this invention.

[0020] In the diagram: 1. Frame assembly; 11. Base; 12. Dynamometer head; 2. Flexible coupling assembly; 21. Keycap; 22. Telescopic slide key; 23. Telescopic frame; 24. Support slide; 3. Hydraulic dynamometer mechanism; 31. Fluid switching valve; 32. Hydraulic dynamometer assembly; 321. Shaft; 322. Outer support; 323. Rotor; 4. Electrical dynamometer assembly; 41. Wire; 42. Electrical dynamometer rotor; 43. Relay; 5. Main dynamometer mechanism; 51. Torque transmitter. 52. Power Measurement Mounting Component; 521. Support Spindle; 522. Housing; 523. Central Spindle; 53. Thermistor Component; 531. Thermal Sensor; 532. Signal Line; 54. Speed ​​Sensor; 6. PLC; 7. Frequency Converter; 8. Heat Dissipation Component; 81. Outer Housing; 82. Rotary Motor; 83. Fan; 9. Water Supply Component; 91. Water Tank; 92. Water Pipe; 10. Control Component; 101. Storage Unit; 102. Display Panel. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1:

[0022] like Figures 1-3 As shown, a high-precision dynamometer device with multi-energy adaptive switching includes a frame assembly 1, which includes a base 11 and a dynamometer head 12. A flexible coupling assembly 2 is provided on the top left side of the frame assembly 1. A hydraulic dynamometer mechanism 3, an electric dynamometer assembly 4, and a total dynamometer mechanism 5 are arranged sequentially on the right side of the flexible coupling assembly 2. The flexible coupling assembly 2, the hydraulic dynamometer mechanism 3, the electric dynamometer assembly 4, the total dynamometer mechanism 5, the frequency converter 7, and the heat dissipation assembly 8 are all located on the top side of the base 11. The dynamometer head 12 penetrates the upper side wall of the base 11. The upper end of the water supply assembly 9 penetrates the adjacent side wall of the dynamometer head 12. The dynamometer head 12 penetrates the axis of the flexible coupling assembly 2. The output shaft of an external power source (such as the motor or engine to be tested) is connected to the dynamometer head 12 at the left end of the flexible coupling assembly 2. like Figure 4As shown, the elastic coupling assembly 2 includes key caps 21, telescopic sliding keys 22, telescopic supports 23 and support sliding supports 24, the key caps 21 are provided with two groups of keys respectively located at the two ends of the telescopic sliding keys 22 and the telescopic supports 23, the telescopic sliding keys 22 are arranged around the side edges of the key caps 21, the telescopic supports 23 are arranged at the shaft centers of the key caps 21, and the elastic coupling assembly 2 realizes preliminary positioning with the output shaft of the power source and the rotating shaft 321 of the water power dynamometer mechanism 3 through the two end key caps 21; when the power source is started, if there is a radial or axial deviation of the shafting, the telescopic sliding keys 22 can flexibly slide along the side edges of the key caps 21, the telescopic supports 23 compensate the deviation through elastic deformation at the shaft centers, the support sliding supports 24 ensure the overall stability of the coupling assembly, avoid transmission jam caused by the deviation, and ensure that the power is stably transmitted to the subsequent dynamometer mechanism; As shown in Figure 3 and Figure 5 As shown, the water power dynamometer mechanism 3 includes a fluid switching valve 31 and a water power dynamometer assembly 32, the fluid switching valve 31 is arranged at the left end of the water power dynamometer assembly 32, and the electric power dynamometer assembly 4 is arranged at the right end of the water power dynamometer assembly 32, the water power dynamometer assembly 32 includes a rotating shaft 321, an outer support 322 and a rotor 323, the rotating shaft 321 penetrates the shaft centers of the outer support 322 and the rotor 323, the rotor 323 is arranged at the inner side of the outer support 322, the torque output by the power source is transmitted to the rotating shaft 321 through the elastic coupling assembly 2, drives the rotor 323 at the inner side of the outer support 322 to rotate at high speed, the cooling water between the rotor 323 and the outer support 322 forms a hydraulic load under the action of centrifugal force, the cooling water flow is controlled by adjusting the opening of the fluid switching valve 31, thereby changing the size of the hydraulic load (the greater the flow, the greater the load torque), and the test of different load working conditions of the power source is realized; As shown in Figure 3 The elastic coupling assembly 2, the water power dynamometer mechanism 3, the electric power dynamometer assembly 4 and the total dynamometer mechanism 5 are connected in series on the same shaft, the electric power dynamometer assembly 4 includes a wire 41, an electric power dynamometer rotating member 42 and a relay 43, the wire 41 is arranged at the left end of the electric power dynamometer rotating member 42, the relay 43 is arranged at the middle part of the wire 41, the right end of the wire 41 is connected with the PLC 6, the wire 41 connects the electric circuit of the electric power dynamometer rotating member 42 and the PLC 6, the frequency converter 7 adjusts the output voltage and frequency according to the instruction of the PLC 6 to drive the electric power dynamometer rotating member 42 to operate: if the output power of the power source needs to be absorbed, the electric power dynamometer rotating member 42 operates as a generator to convert mechanical energy into electrical energy, and the excess electrical energy can be fed back to the power grid or the energy storage unit through the wire 41; Example two:

[0023] As shown in Figures 6-8As shown, the overall dynamometer mechanism 5 includes a torque sensor 51, a dynamometer support assembly 52, a thermal component 53, and a speed sensor 54. The torque sensor 51 is located between the torque sensor 51 and the electric dynamometer assembly 4. The thermal component 53 penetrates the left end of the dynamometer support assembly 52. ​​The speed sensor 54 is located at the right end of the dynamometer support assembly 52. ​​The dynamometer support assembly 52 includes a supporting spindle 521, a housing 522, and a central spindle 523. The supporting spindle 521 passes through the axis of the housing 522. The central spindle 523 is located on the inner axis of the housing 522 and forms an L-shape with the edge of the housing 522. A support frame and a thermal component 53 are mounted inside the support frame constructed from the housing 522 and the central spindle 523. The thermal component 53 includes a thermal sensor 531 and a signal line 532. One end of the signal line 532 is connected to the thermal sensor 531. The torque transmitted by the power source is transmitted to the support spindle 521 of the main dynamometer 5 after passing through the hydraulic dynamometer 3 or the electric dynamometer 4. The support spindle 521 drives the central spindle 523 inside the housing 522 to rotate synchronously. The torque sensor 51 is connected in series between the electric dynamometer 4 and the main dynamometer 5 to directly collect the real-time torque transmitted by the shaft system and transmit the data to the PLC 6 through the signal line. The speed sensor 54 is installed at the right end of the dynamometer support frame 52. It calculates the real-time speed by detecting the rotation frequency of the central spindle 523 and synchronously feeds the data back to the PLC 6. Example 3:

[0024] like Figure 6 As shown, a PLC 6 is installed at the right end of the frame assembly 1. A frequency converter 7 and a heat dissipation assembly 8 are installed on the top side of the frame assembly 1 at the rear end of the flexible coupling assembly 2, the hydraulic dynamometer mechanism 3, the electric dynamometer assembly 4 and the total dynamometer mechanism 5. The end of the signal line 532 away from the thermal sensor 531 is connected to the inside of the heat dissipation assembly 8. The heat dissipation assembly 8 includes an outer casing 81, a rotary motor 82 and a fan 83. The air outlet of the outer casing 81 faces the rear of the total dynamometer mechanism 5. The rotary motor 82 and the fan 83 are located inside the outer casing 81. The output end of the rotary motor 82 is connected to the rear shaft of the fan 83. When the temperature exceeds the preset threshold, the rotary motor 82 of the heat dissipation assembly 8 starts, driving the fan 83 to rotate at high speed. The air outlet of the outer casing 81 faces the rear of the total dynamometer mechanism 5, blowing out cold air in a directional manner to reduce the temperature of the equipment. like Figure 3 As shown, a water supply component 9 is provided at the left end of the frame assembly 1. The water supply component 9 includes a water tank 91 and a water pipe 92. The bottom end of the water tank 91 passes through the top end of the water pipe 92, and the top end of the water tank 91 passes through the inside of the frame assembly 1. If the temperature continues to rise, the PLC 6 further adjusts the flow rate of the water pipe 92 of the water supply component 9 to increase the supply of cooling water. Through the dual heat dissipation of "air cooling + water cooling", the equipment temperature is ensured to be controlled within a safe range, avoiding the impact of high temperature on measurement accuracy and component life. likeFigure 1 , Figure 2 and Figure 9 As shown, a control component 10 is located at the front right end of the frame assembly 1. The control component 10 includes a storage unit 101 and a display panel 102. The display panel 102 is located on top of the storage unit 101. The storage unit 101 and the PLC 6 are connected via a signal transmission line. The PLC 6 transmits the collected torque, speed, power, and temperature data to the control component 10 in real time. The display panel 102 dynamically displays various parameters, facilitating real-time monitoring by the operator. The storage unit 101 stores all dynamometer data according to the time axis.

[0025] Working principle: such as Figures 1-9 As shown, the operator inputs the dynamometer requirement parameters through the display panel 102 of the control component 10. The parameters are transmitted to the PLC 6 via the signal transmission line, and the storage unit 101 records the preset data. The water supply component 9 is started, and the cooling water in the water tank 91 is transported through the water pipe 92 to the adjacent pipe inside the dynamometer head 12, which serves as the pre-stored cooling medium for the subsequent hydraulic dynamometer mechanism 3 and equipment heat dissipation. Inside the outer casing 81 of the heat dissipation component 8, the rotary motor 82 is initially in standby mode, waiting for the temperature signal to trigger its start. Power source and device docking: The output shaft of the external power source (such as the motor or engine to be tested) docks with the measuring head 12 at the left end of the flexible coupling assembly 2. The flexible coupling assembly 2 achieves initial positioning with the output shaft of the power source and the rotating shaft 321 of the hydraulic dynamometer mechanism 3 through the keycaps 21 at both ends. When the power source is started, if there is a radial or axial deviation in the shaft system, the telescopic slide key 22 can slide flexibly along the side of the keycap 21. The telescopic frame 23 compensates for the deviation through elastic deformation at the shaft center, and the support slide 24 ensures the overall stability of the coupling assembly, avoids transmission jamming caused by deviation, and ensures that the power is smoothly transmitted to the subsequent dynamometer structure. Multi-energy dynamometer switching and power transmission stage: The device uses a coaxial series structure of flexible coupling assembly 2, hydraulic dynamometer mechanism 3, electric dynamometer assembly 4, and total dynamometer mechanism 5, combined with intelligent control of PLC 6, to achieve adaptive switching between "hydraulic dynamometer" and "electric dynamometer", adapting to the dynamometer requirements of different power sources. Hydraulic dynamometer mode: when PLC 6 determines to enable hydraulic dynamometer according to preset parameters, the output signal controls the fluid switching valve 31 to open, and the cooling water of the water supply assembly 9 enters the inside of the outer support 322 of the hydraulic dynamometer assembly 32 through the water pipe 92; the torque output by the power source is transmitted to the rotating shaft 321 through the elastic coupling assembly 2, driving the high-speed rotation of the rotor 323 inside the outer support 322, and the cooling water between the rotor 323 and the outer support 322 forms a hydraulic load under the action of centrifugal force, the cooling water flow is controlled by adjusting the opening of the fluid switching valve 31, thereby changing the size of the hydraulic load (the greater the flow, the greater the load torque), realizing the test of different load conditions of the power source; at this time, the electric dynamometer assembly 4 is in standby state, and the relay 43 disconnects the circuit connection between the wire 41 and the electric dynamometer component 42, avoiding the energy consumption of the electric dynamometer component 42 idling; Electric dynamometer mode: when the test requirement is switched to high-precision regulation and control (such as frequent changes of the rotating speed of the power source), PLC 6 sends a signal to close the fluid switching valve 31, and the hydraulic dynamometer assembly 32 stops outputting hydraulic load; at the same time, the relay 43 is controlled to be closed, and the wire 41 connects the circuit between the electric dynamometer component 42 and PLC 6, and the frequency converter 7 adjusts the output voltage and frequency according to the instruction of PLC 6, driving the electric dynamometer component 42 to operate: if it is needed to absorb the output power of the power source, the electric dynamometer component 42 operates as a generator, converting mechanical energy into electric energy, and the excess electric energy can be fed back to the power grid or the energy storage unit through the wire 41; if it is needed to drag the power source (such as testing the starting characteristics of the power source), the electric dynamometer component 42 operates as a motor, outputting torque to drive the power source to rotate; during the whole process, the elastic coupling assembly 2 continuously compensates the shafting deviation, ensuring that the power is continuously transmitted without interruption when the hydraulic dynamometer mode and the electric dynamometer mode are switched; The total dynamometer mechanism 5 is the core of parameter measurement, which collects the torque, rotating speed and temperature data of the power source in real time, and feeds back to PLC 6 to realize closed-loop regulation and control: Torque and rotating speed measurement: the torque transmitted by the power source is transmitted to the support main shaft 521 of the total dynamometer mechanism 5 after passing through the hydraulic dynamometer mechanism 3 or the electric dynamometer assembly 4, and the support main shaft 521 drives the synchronous rotation of the center main shaft 523 inside the shell 522; the torque sensor 51 is connected in series between the electric dynamometer assembly 4 and the total dynamometer mechanism 5, directly collecting the real-time torque transmitted by the shafting, and transmitting the data to PLC 6 through the signal line; the rotating speed sensor 54 is installed at the right end of the dynamometer force bearing assembly 52, and the real-time rotating speed is calculated by detecting the rotating frequency of the center main shaft 523, and the data is fed back to PLC 6 synchronously; Temperature monitoring and heat dissipation regulation: During the dynamometer process, the thermal sensor 531 of the heat-sensitive component 53 (installed inside the L-shaped bracket built by the shell 522 and the center shaft 523) monitors the temperature of the shafting and the dynamometer mechanism in real time. The temperature data is transmitted to the heat dissipation component 8 and the PLC 6 through the signal line 532. When the temperature exceeds the preset threshold, the rotating motor 82 of the heat dissipation component 8 starts, driving the fan 83 to rotate at high speed. The air outlet of the outer box shell 81 is opposite to the back of the total dynamometer mechanism 5, blowing cold air to reduce the temperature of the equipment. If the temperature continues to rise, the PLC 6 further adjusts the flow of the water pipe 92 of the water supply component 9 to increase the supply of cooling water. Through "air cooling + water cooling" double heat dissipation, the equipment temperature is controlled within the safe range, avoiding the influence of high temperature on the measurement accuracy and the service life of the components. Real-time data recording and display: The PLC 6 transmits the collected torque, speed, power, and temperature data to the control component 10 in real time. The display panel 102 dynamically displays various parameters, making it convenient for operators to monitor in real time. The storage machine 101 stores all dynamometer data according to the time axis. Orderly shutdown and equipment protection: After the dynamometer process is completed, the operator sends a shutdown command through the display panel 102. The PLC 6 first controls the power source to gradually reduce the output power, and then closes the fluid switching valve 31 and the relay 43 in sequence. After the shafting completely stops rotating, the water pipe 92 of the water supply component 9 is closed, and the cooling water supply is stopped. The rotating motor 82 of the heat dissipation component 8 is automatically stopped by the PLC 6 when the temperature drops to the preset lower limit. Finally, the total power supply is cut off, completing the dynamometer process.

Claims

1. A high-precision dynamometer device with multi-energy adaptive switching, comprising a frame assembly (1), characterized in that: The frame assembly (1) includes a base (11) and a dynamometer head (12). A flexible coupling assembly (2) is provided on the top left side of the frame assembly (1). The dynamometer head (12) passes through the shaft of the flexible coupling assembly (2). The right side of the flexible coupling assembly (2) is provided with a hydraulic dynamometer mechanism (3), an electric dynamometer assembly (4), and a total dynamometer mechanism (5). The electric dynamometer assembly (4) includes a wire (41), an electric dynamometer rotating component (42), and a relay (43). The wire (41) is located at the left end of the electric dynamometer rotating component (42), and the relay (43) is located at the middle of the wire (41). The total dynamometer mechanism (5) includes a torque sensor (51), a dynamometer support assembly (52), a thermal component (53), and a speed sensor (54). The torque sensor (51) is disposed between the torque sensor (51) and the electric dynamometer assembly (4). The thermal component (53) passes through the left end of the dynamometer support assembly (52). The speed sensor (54) is disposed at the right end of the dynamometer support assembly (52). The flexible coupling assembly (2), the hydraulic dynamometer (3), the electric dynamometer assembly (4), and the total dynamometer (5) are connected in series on the coaxial axis to form an integrated power transmission and dynamometer link; A PLC (6) is provided at the right end of the frame assembly (1), and the right end of the wire (41) is connected to the PLC (6). A frequency converter (7) and a heat dissipation assembly (8) are provided on the top side of the frame assembly (1) at the rear end of the flexible coupling assembly (2), the hydraulic dynamometer mechanism (3), the electric dynamometer assembly (4) and the total dynamometer mechanism (5). A water supply assembly (9) is provided at the left end of the frame assembly (1), and a control assembly (10) is provided at the front right end of the frame assembly (1) to realize multi-component collaborative control and energy adaptive switching.

2. The high-precision dynamometer device with multi-energy adaptive switching according to claim 1, characterized in that: The flexible coupling assembly (2), the hydraulic dynamometer mechanism (3), the electric dynamometer assembly (4), the total dynamometer mechanism (5), the frequency converter (7), and the heat dissipation assembly (8) are all located on the top side of the base (11). The dynamometer head (12) penetrates the upper side wall of the base (11), and the upper end of the water supply assembly (9) penetrates the adjacent side wall of the dynamometer head (12).

3. The high-precision dynamometer device with multi-energy adaptive switching according to claim 1, characterized in that: The flexible coupling assembly (2) includes a keycap (21), a telescopic slide key (22), a telescopic frame (23), and a support slide (24). The keycap (21) is provided with two sets located at the two ends of the telescopic slide key (22) and the telescopic frame (23), respectively. The telescopic slide key (22) is located around the side of the keycap (21), and the telescopic frame (23) is located at the axis of the keycap (21).

4. The high-precision dynamometer device with multi-energy adaptive switching according to claim 1, characterized in that: The hydraulic dynamometer (3) includes a fluid switching valve (31) and a hydraulic dynamometer assembly (32). The fluid switching valve (31) is located at the left end of the hydraulic dynamometer assembly (32), and the electric dynamometer assembly (4) is located at the right end of the hydraulic dynamometer assembly (32).

5. The high-precision dynamometer device with multi-energy adaptive switching according to claim 4, characterized in that: The hydraulic dynamometer assembly (32) includes a rotating shaft (321), an outer support (322), and a rotor (323). The rotating shaft (321) passes through the axis of the outer support (322) and the rotor (323), and the rotor (323) is located inside the outer support (322).

6. The high-precision dynamometer device with multi-energy adaptive switching according to claim 1, characterized in that: The power measuring support assembly (52) includes a supporting spindle (521), a housing (522), and a central spindle (523). The supporting spindle (521) passes through the axis of the housing (522). The central spindle (523) is located on the inner axis of the housing (522) and an L-shaped bracket is built between it and the edge of the housing (522). The thermal component (53) is located inside the bracket built by the housing (522) and the central spindle (523).

7. The high-precision dynamometer device with multi-energy adaptive switching according to claim 1, characterized in that: The thermal component (53) includes a thermal sensor (531) and a signal line (532). One end of the signal line (532) is connected to the thermal sensor (531), and the other end of the signal line (532) away from the thermal sensor (531) is connected to the interior of the heat dissipation component (8).

8. The high-precision dynamometer device with multi-energy adaptive switching according to claim 1, characterized in that: The heat dissipation assembly (8) includes an outer casing (81), a rotary motor (82), and a fan (83). The air outlet of the outer casing (81) faces the rear of the main dynamometer (5). The rotary motor (82) and the fan (83) are located inside the outer casing (81). The output end of the rotary motor (82) is connected to the rear axis of the fan (83).

9. A high-precision dynamometer device with multi-energy adaptive switching according to claim 1, characterized in that: The water supply assembly (9) includes a water supply tank (91) and a water pipe (92). The bottom end of the water supply tank (91) passes through the top end of the inside of the water pipe (92), and the top end of the water supply tank (91) passes through the inside of the frame assembly (1).

10. A high-precision dynamometer device with multi-energy adaptive switching according to claim 1, characterized in that: The control component (10) includes a storage unit (101) and a display panel (102). The display panel (102) is disposed on the top of the storage unit (101). The storage unit (101) and the PLC (6) are connected by a signal transmission line.

Images