Fuel gas detection device for engine test

Abstract

The embodiment of the utility model provides a fuel gas detection device for engine testing, and belongs to the technical field of engine testing. The fuel gas detection device comprises a butt joint system used for controlling butt joint of a test bench (1) and a fuel gas interface of the engine; the fuel gas detector is used for automatically detecting the fuel gas at the set point location; the gas detector is mounted on the robot (5), and the robot (5) moves the gas detector to the set point location through a set path; and a control system for controlling the supply and cut-off of the gas and for controlling the movement of the robot (5). According to the utility model, the robot is utilized to carry out automatic gas detection, the risks of personnel poisoning and equipment explosion are reduced, the detection rhythm is improved, the docking system is adopted to replace manual docking, the function of automatic docking is realized, secondary design of the original docking panel is not needed, and the cost is reduced. The problems of high investment, long period and huge upgrading and reconstruction workload are solved.

Description

Technical Field

[0001] The invention relates to the technical field of engine testing, and in particular to a gas detection device for engine testing. Background Art

[0002] During the engine test, the test bench and engine docking device plays a vital role. It is responsible for ensuring a safe, stable and efficient connection between the engine and the test bench for various tests. In the existing test bench and engine docking device design, in order to ensure the efficiency and accuracy of the docking process, the docking requirements of various pipelines and joints such as oil, liquid, gas, and electricity were considered during the initial design. To this end, these complex pipelines and joints are integrated into a set of docking panel modules. This design not only simplifies the docking process, but also greatly improves the accuracy and efficiency of docking.

[0003] The design of the docking panel module is very delicate. They are fixed on the test bench and the pallet respectively, ensuring the stability and reliability during docking. Among them, the engine is firmly installed on the pallet, and proper preparation and positioning are carried out to ensure that the various components of the engine are in normal working condition, and all necessary sensors and measuring equipment are correctly installed. In the docking process between the engine (tray) and the test bench, the high-pressure oil cylinder plays a key role. It ensures that the pallet can be dragged through its precise movement and powerful power, so that the docking panel on the pallet and the docking panel on the bench can be smoothly and accurately docked automatically. However, this structure has extremely high requirements on the relative position of the test bench docking panel and the tray docking panel, and it is necessary to ensure that the two are accurately matched during docking. Therefore, in the design and processing of the installation position, very precise calculations and operations are required to ensure the smooth progress of docking. Although such a design increases the difficulty of manufacturing and installation, it provides great convenience and guarantee for subsequent docking work.

[0004] At present, when new natural gas testing and docking requirements are added, considering the characteristics of natural gas, it is necessary to conduct regular or irregular leakage detection on the natural gas joints to ensure the safety and stability of the entire system. However, due to the insufficient reserved space of the combined docking panel originally designed for the test bench and the engine docking device, there are many inconveniences when docking the natural gas testing equipment. In the small-batch verification and trial production stage of products, the existing technology adopts manual docking due to the relatively small production volume. Although this method is relatively time-consuming and inefficient, it can still meet the needs under a relatively small production scale. However, as the product gradually enters the mass production stage, the manual docking method obviously cannot meet the requirements of the production rhythm. The existing technology adopts the redesign and manufacture of the original docking combination panel and the corresponding system upgrade to realize the automatic docking function.

[0005] The inventor of this application found in the process of realizing this utility model that when the number of test benches and trays used in engine testing is large, the solution of redesigning and manufacturing the original docking combination panel faces the problems of high investment, long cycle, and huge workload of upgrading and transformation. At the same time, the use of manual natural gas leak detection will face the risk of gas poisoning and explosion due to excessive concentration. Summary of the invention

[0006] The purpose of the embodiment of the utility model is to provide a device, which replaces manual docking and realizes the function of automatic docking, improves the production rhythm, and solves the problems of high investment, long cycle and huge workload of upgrading and transformation.

[0007] In order to achieve the above-mentioned purpose, an embodiment of the utility model provides a gas detection device for engine testing, characterized in that the device includes: a docking system, used to control the docking of the test bench and the gas interface of the engine; a gas detector, which is used to automatically detect the gas at a set point when the gas system delivers gas to the engine after the test bench and the gas interface of the engine are docked, wherein the gas system is used to provide the gas; a robot, on which the gas detector is installed, which moves the gas detector to the set point via a set path; and a control system, which is used to control the supply and cutoff of the gas, and also to control the movement of the robot.

[0008] Optionally, the docking system includes: a group of gas docking panels on which gas pipelines and joints are integrated, wherein a first gas docking panel is fixed on the test bench, and a second gas docking panel is fixed on a pallet on which the engine is mounted; and an automatic docking device for controlling the docking of the test bench and the group of gas docking panels on the pallet, wherein the automatic docking device includes: a cylinder located at the end of the test bench, for driving the first gas docking panel on the test bench to dock with the second gas docking panel on the pallet when the cylinder is extended, and for withdrawing the group of gas docking panels when the cylinder is withdrawn; and a solenoid valve for controlling the extension and withdrawal of the cylinder, wherein the cylinder is extended when the solenoid valve is energized, and the cylinder is withdrawn when the solenoid valve is de-energized.

[0009] Optionally, the set point is a joint point at which the group of gas docking panels are docked, and there is at least one joint point.

[0010] Optionally, the control system is also used to control the power on and power off of the solenoid valve.

[0011] Optionally, the docking system also includes: a proximity switch located on the cylinder, the proximity switches including at least two, for confirming the extended into position state and the withdrawn into position state of the cylinder, and outputting an extended into position state signal and a withdrawn into position state signal to the control system.

[0012] Optionally, the docking system further comprises: a multi-directional floating device, comprising a spring and a pulley structure, so that the first gas docking panel on the test bench has the function of moving and resetting in the docking direction.

[0013] Optionally, the gas system delivers the gas to the engine via the set of gas docking panels after docking.

[0014] Optionally, the gas system includes a gas main valve body for controlling the supply and cut-off of the gas; and the control system controls the supply and cut-off of the gas by controlling the opening and closing of the gas main valve body, wherein, when the set of gas docking panels completes docking, the control system controls the gas main valve body to open the gas supply after a set time.

[0015] Optionally, the gas detector is also used to alarm and output an alarm signal when a gas leakage is detected at the set point; the control system receives the alarm signal, and outputs a pause signal to the robot, and also outputs the alarm signal to the host computer system, wherein the host computer system is used to regulate the automated management of the gas detection process; the robot receives the pause signal and pauses at the set point currently being detected; and the host computer system receives the alarm signal, controls the gas detection process to pause, and issues an alarm.

[0016] Optionally, the gas detector is mounted on the robot via a mounting plate, and the mounting plate has a certain toughness for buffering the force of impact.

[0017] Through the above technical scheme, the utility model adopts a robot carrying a gas detector. After the engine and the test bench complete the automatic docking of the gas interface through the docking system provided by the utility model, the gas detection is performed according to the set path to the set point, and a control system is used to control the supply and cut-off of the gas and the movement of the robot. The utility model uses a robot to perform automatic gas detection, which saves personnel and reduces the safety risks related to gas, reduces the risk of personnel poisoning and equipment explosion, and improves the overall detection rhythm of the equipment. At the same time, the utility model uses a docking system to replace manual docking and realizes the function of automatic docking. The docking system adopts a new set of gas docking panels to realize the automatic docking function. The docking system maintains the original structure of the tray and the test bench, and does not need to perform secondary design and processing on the original docking panel, which solves the problems of high investment, long cycle, and huge workload of upgrading and transformation.

[0018] Other features and advantages of the embodiments of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the embodiments of the present utility model and constitute a part of the specification. Together with the following specific implementations, they are used to explain the embodiments of the present utility model, but do not constitute a limitation on the embodiments of the present utility model. In the accompanying drawings:

[0020] Figure 1 It is a schematic diagram of the existing test bench and engine docking device.

[0021] Figure 2 It is a schematic diagram of a test bench and engine docking system provided by an embodiment of the utility model.

[0022] Figure 3 It is a schematic diagram of a gas detection device for engine testing provided by an embodiment of the utility model.

[0023] Description of Reference Numerals

[0024] 1 test bench 2 trays

[0025] 3.1 First docking panel 3.2 Second docking panel

[0026] 4.1 First gas docking panel 4.2 Second gas docking panel

[0027] 5 robots 6 joint points DETAILED DESCRIPTION

[0028] The specific implementation of the embodiment of the utility model is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the embodiment of the utility model, and is not used to limit the embodiment of the utility model.

[0029] Figure 1 This is a schematic diagram of the existing test bench and engine docking device. Figure 3 is a schematic diagram of a gas detection device for engine testing provided by an embodiment of the utility model, see Figure 1 and Figure 3 As shown, an embodiment of the utility model provides a gas detection device for engine testing, the device comprising: a docking system for controlling the docking of the test bench 1 and the gas interface of the engine; a gas detector for automatically detecting the gas at a set point when the gas system delivers gas to the engine after the test bench 1 and the gas interface of the engine are docked, wherein the gas system is used to provide the gas; a robot 5 on which the gas detector is installed, which moves the gas detector to the set point via a set path; and a control system for controlling the supply and cutoff of the gas, and also for controlling the movement of the robot 5, wherein the gas provided in the embodiment of the utility model is natural gas, and the control system is preferably a roller system. Optionally, Figure 2 The figure shows a schematic diagram of the test bench and engine docking system provided by the embodiment of the utility model, see Figure 2 and Figure 3 As shown, the docking system provided by the embodiment of the utility model includes: a group of gas docking panels 4.1, 4.2, on which gas pipelines and joints are integrated, wherein the first gas docking panel 4.1 is fixed on the test bench 1, and the second gas docking panel 4.2 is fixed on the tray 2, and the tray 2 is installed with the engine; and an automatic docking device, which is used to control the docking of the group of gas docking panels 4.1, 4.2 on the test bench 1 and the tray 2. Optionally, the automatic docking device provided by the embodiment of the utility model includes: a cylinder, located at the end of the test bench 1, used for when the cylinder is extended, the cylinder drives the first gas docking panel 4.1 on the test bench 1 to dock with the second gas docking panel 4.2 on the tray 2, and when the cylinder is withdrawn, the group of gas docking panels 4.1, 4.2 withdraw from docking; and a solenoid valve, which is used to control the extension and withdrawal of the cylinder, wherein the cylinder is extended when the solenoid valve is energized, and the cylinder is withdrawn when the solenoid valve is de-energized.

[0030] In some embodiments, the set point is the joint point 6 at the joint of the group of gas docking panels 4.1 and 4.2, and there is at least one joint point 6. Optionally, the gas detector can not only perform gas detection on the joint point 6, but also monitor the gas leakage of the entire space in real time, so as to ensure that there is no leakage risk at the joint point 6 and the engine as a whole.

[0031] In some embodiments, the roller system is also used to control the power on and off of the solenoid valve. The solenoid valve can be a one-way solenoid valve or a two-way solenoid valve. The one-way solenoid valve is preferred in the embodiment of the utility model.

[0032] In some embodiments, the docking system further includes: a proximity switch located on the cylinder, the proximity switches include at least two, used to confirm the extended in-place state and the withdrawn in-place state of the cylinder, and output the extended in-place state signal and the withdrawn in-place state signal to the roller system, wherein the proximity switch can be optionally a magnetic switch or a distance measuring sensor, and optionally, the embodiment of the utility model preferably has two proximity switches, including an extended proximity switch and a withdrawn proximity switch. The embodiment of the utility model also provides a host computer system, which is used to control the automated management of the gas detection process.

[0033] In some embodiments, the gas system delivers the gas to the engine via the set of gas docking panels 4.1, 4.2 after docking. Optionally, the gas system includes a gas main valve body for controlling the supply and cut-off of the gas; and the control system controls the supply and cut-off of the gas by controlling the opening and closing of the gas main valve body, wherein, after the set of gas docking panels 4.1, 4.2 are docked, the control system controls the gas main valve body to open the gas supply after a set time, wherein the gas main valve body can be a natural gas main line solenoid valve. Optionally, there are timing problems in the gas output action and robot detection and software communication. After the engine and the test bench complete the gas docking, the embodiment of the utility model preferably sets the set time to 10s, and after 10s, the control system controls the gas main valve body to open the gas supply.

[0034] Specifically, when the host computer system controls the gas detection process to start the gas docking process between the test bench and the engine, the host computer system feeds back the start signal of the gas docking to the roller system, and the roller system controls the one-way solenoid valve to be energized. After the one-way solenoid valve is energized, the cylinder is controlled to extend. When the cylinder extends, the cylinder drives the first gas docking panel 4.1 on the test bench 1 to dock with the second gas docking panel 4.2 on the tray 2. If the extension proximity switch on the cylinder detects the extended in-place state signal, the extension proximity switch outputs the extended in-place state signal to the roller system. At this moment, the gas docking between the engine and the test bench is completed. The roller system controls the natural gas main line solenoid valve to open the gas supply 10 seconds after the gas docking between the engine and the test bench is completed. After the natural gas main line solenoid valve is opened, the robot 5 needs to move the gas detector installed thereon to the joint point 6 according to the set path, and the gas detector automatically performs gas detection. Among them, the set path can be programmed with an automatic detection operating program according to the joint point 6 to be detected as required, and is reasonably embedded in the operating logic of the original engine gas detection cycle. When the robot 5 moves the set path, the roller system receives the status information of the robot 5 after moving the set path, controls the one-way solenoid valve to lose power, and then causes the cylinder to exit. When the cylinder exits, the cylinder drives the first gas docking panel 4.1 on the test bench 1 to exit the docking with the second gas docking panel 4.2 on the tray 2. If the exit proximity switch on the cylinder detects the exit in place status signal, the exit proximity switch outputs the exit in place status signal to the roller system. At this moment, the gas docking exit between the engine and the test bench is completed, and the gas detection is completed.

[0035] In some embodiments, the docking system further comprises: a multi-directional floating device, including a spring and a pulley structure, so that the first gas docking panel 4.1 on the test bench 1 has a moving and resetting function in the docking direction. Optionally, the embodiment of the utility model adopts a spring structure at the first gas docking panel 4.1 on the test bench 1, so that after the first gas docking panel 4.1 on the test bench 1 and the second gas docking panel 4.2 on the tray 2 exit docking, the first gas docking panel 4.1 can return to the initial position. Preferably, the embodiment of the utility model adopts two spring structures on the first gas docking panel 4.1, including a transverse spring and a vertical spring, so that the first gas docking panel 4.1 has a resetting function in the vertical direction and the transverse direction. Optionally, the embodiment of the utility model also adopts a vertical pulley and a transverse pulley to ensure that the first gas docking panel 4.1 can slide freely in the height direction and the left and right (transverse) direction. The embodiment of the utility model uses the structure of the spring group and the pulley to enable the first gas docking panel 4.1 to have a moving and resetting function in the vertical, transverse and front and rear docking directions, and at the same time has a certain parallel compensation function in the vertical and transverse directions. The embodiment of the utility model solves the problem of height, front-to-back, left-to-right and parallel errors of multiple trays after docking through the floating design of the first gas docking panel 4.1 at the end of the test bench 1 in multiple directions, while ensuring reliable connection during the test process.

[0036] In some embodiments, the gas detector is also used to alarm and output an alarm signal when a gas leak is detected at the set point; the control system receives the alarm signal, and outputs a pause signal to the robot 5, and also outputs the alarm signal to the host computer system, wherein the host computer system is used to control the automated management of the gas detection process; the robot 5 receives the pause signal and pauses at the set point currently being detected; and the host computer system receives the alarm signal, controls the gas detection process to pause, and issues an alarm. Specifically, when the gas detector detects a natural gas leak at the current joint point 6, the gas detector buzzes and the red light flashes, and outputs an alarm signal to the roller system, and when the roller system receives the alarm signal, it outputs a pause signal to the robot 5, and also outputs the alarm signal to the host computer system. Among them, when the robot 5 body receives the pause signal sent by the roller system, the robot 5 pauses at the joint point 6 currently being detected, and needs to wait for the alarm to be released, and then continue to execute the task set in the program. When the host computer system receives the alarm signal sent by the roller system, the host computer system stops the next process of the gas detection process, such as "allowing testing" or "starting the engine". At the same time, the roller system will also output a fault signal to the natural gas main line solenoid valve in the gas system, and control the natural gas main line solenoid valve to automatically cut off the natural gas supply after receiving the fault signal to ensure the safety of natural gas output. Optionally, the alarm release needs to wait for manual on-site secondary detection and confirmation of natural gas. If the on-site manual confirms that there is no natural gas leakage problem, the alarm is manually released, and the robot 5 continues to execute the task set in the program, and the host computer system continues to the next process of the gas detection process.

[0037] In some embodiments, the gas detector is mounted on the robot 5 via a mounting plate, and the mounting plate has a certain toughness for cushioning the impact force when the robot 5 or the gas detector accidentally interferes with the engine or engine mounting parts and collides with them during operation, thereby protecting the robot 5 and the gas detector.

[0038] In some embodiments, in combination with the engine gas pipeline joint and the safety and process detection requirements, the utility model embodiment sets the robot gas automatic detection point. During the natural gas detection process of the engine, the gas detector needs to be kept in a vertical direction with the gas pipeline joint to ensure the effectiveness of gas reception.

[0039] Since the existing on-site reserved cables are insufficient, the utility model embodiment adopts multiple new cables, including solenoid valve and robot I / O signal lines, to realize the output control of the roller system and the reception of robot feedback signals, which can ensure the real-time control of the equipment action signal. Among them, the utility model embodiment preferably adopts two six-core wires and re-lays 12*1.5mm 2 Optionally, the real-time control method can be changed from direct wiring to PN communication.

[0040] The gas detection device for engine testing includes a processor and a memory. The automated management of the gas detection process and the set path of robot movement are stored in the memory as program units, and the processor executes the program units stored in the memory to implement corresponding functions.

[0041] The processor includes a kernel, which retrieves the corresponding program unit from the memory. One or more kernels can be set, and the engine gas detection process is performed by adjusting kernel parameters.

[0042] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one memory chip.

[0043] The embodiment of the utility model provides a storage medium on which a program is stored. When the program is executed by a processor, the automatic management of the gas detection process and the setting path of the robot movement are realized.

[0044] An embodiment of the utility model provides a processor, which is used to run a program, wherein when the program is running, the automatic management of the gas detection process and the setting path of the robot movement are executed.

[0045] The embodiment of the utility model provides a device, which includes a processor, a memory, and a program stored in the memory and can be run on the processor. When the processor executes the program, the automatic management of the gas detection process and the setting path of the robot movement are realized. The device in this article can be a server, a PC, a PAD, a mobile phone, etc.

[0046] The present application also provides a computer program product, which, when executed on a data processing device, is suitable for executing a program for initializing the automated management of the gas detection process and setting a path for robot movement, etc.

[0047] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0048] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0049] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0050] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0051] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0052] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0053] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0054] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0055] The technical solution of this application states that “the acquisition, transmission, storage, use, and processing of data shall comply with the relevant provisions of national laws and regulations” and “It should be noted that in the embodiments of this application, some existing solutions in the industry such as certain software, components, and models may be mentioned, which should be regarded as exemplary. Their purpose is only to illustrate the feasibility of the implementation of the technical solution of this application, but it does not mean that the applicant has or will necessarily use the solution.

[0056] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. A gas detection device for engine testing, characterized in that: The device includes: A docking system, used for controlling the docking of the test bench (1) and the gas interface of the engine; a gas detector, which is used to automatically detect the gas at a set point when the gas system delivers gas to the engine after the test bench (1) is docked with the gas interface of the engine, wherein the gas system is used to provide the gas; a robot (5) on which the gas detector is mounted, and moves the gas detector to the set point via a set path; and The control system is used to control the supply and cut-off of the gas and also to control the movement of the robot (5).

2. The gas detection device according to claim 1, characterized in that: The docking system comprises: a set of gas docking panels (4.1, 4.2) on which gas pipelines and joints are integrated, wherein a first gas docking panel (4.1) is fixed on the test bench (1), and a second gas docking panel (4.2) is fixed on a tray (2), and the engine is mounted on the tray (2); and An automatic docking device, used for controlling the docking of the test bench (1) and the set of gas docking panels (4.1, 4.2) on the tray (2), wherein the automatic docking device comprises: a cylinder located at the end of the test bench (1), and used for driving a first gas docking panel (4.1) on the test bench (1) to dock with a second gas docking panel (4.2) on the tray (2) when the cylinder is extended, and for withdrawing the set of gas docking panels (4.1, 4.2) from docking when the cylinder is withdrawn; and The solenoid valve is used to control the extension and retraction of the cylinder, wherein the cylinder extends when the solenoid valve is energized, and the cylinder retracts when the solenoid valve is de-energized.

3. The gas detection device according to claim 2, characterized in that: The set point is a joint point (6) at the joint of the set of gas joint panels (4.1, 4.2), and there is at least one joint point (6).

4. The gas detection device according to claim 2, characterized in that: The control system is also used to control the power on and power off of the solenoid valve.

5. The gas detection device according to claim 2, characterized in that: The docking system also includes: A proximity switch is located on the cylinder. The proximity switch includes at least two of them and is used to confirm the extended position and the withdrawn position of the cylinder, and output an extended position state signal and a withdrawn position state signal to the control system.

6. The gas detection device according to claim 2, characterized in that: The docking system also includes: The multi-directional floating device comprises a spring and a pulley structure, so that the first gas docking panel (4.1) on the test bench (1) has the functions of moving and resetting in the docking direction.

7. The gas detection device according to claim 2, characterized in that: The gas system delivers the gas to the engine via the set of gas docking panels (4.1, 4.2) after docking.

8. The gas detection device according to claim 7, characterized in that: The gas system comprises a gas main valve body for controlling the supply and cut-off of the gas; and The control system controls the supply and cut-off of the gas by controlling the opening and closing of the gas main valve body, wherein, when the set of gas docking panels (4.1, 4.2) are docked, the control system controls the gas main valve body to open and supply gas after a set time.

9. The gas detection device according to claim 1, characterized in that: The gas detector is also used to alarm and output an alarm signal when a gas leak is detected at the set point; The control system receives the alarm signal and outputs a pause signal to the robot (5), and also outputs the alarm signal to a host computer system, wherein the host computer system is used to control the automated management of the gas detection process; The robot (5) receives the pause signal and pauses at the set point position currently detected; and The host computer system receives the alarm signal, controls the gas detection process to pause, and issues an alarm.

10. The gas detection device according to claim 1, characterized in that: The gas detector is mounted on the robot (5) via a mounting plate, and the mounting plate has a certain toughness for buffering the force of impact.

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