Simulation cold flow bench engine air inflow flow test equipment

Abstract

The utility model discloses a simulation cold flow rack engine air inflow flow test device comprising a main body unit comprising a frame, an engine body is placed in the frame, a cover plate is slidably connected to the frame, an inner wall of one side of the frame is fixedly connected with a pore plate, the pore plate is movably connected with a positioning rod, and a bottom end of the positioning rod movably passes through the cover plate; and the measuring unit comprises a connecting pipe which is fixedly communicated with the frame. According to the utility model, the engine is placed through the frame, the cover plate is sealed to prevent air leakage, the accuracy of air inflow test is ensured, the compressor and the flowmeter are combined to display test data, the connecting pipe adapts to engines of different specifications, and the bidirectional flow fresh air ventilator simulates the actual working cold flow environment. The hollow plate pushes the anti-skid cushion to clamp and fix the engine by gas, the test stability is improved, the precision is prevented from being affected by shaking, the multiple gas outlet pipes rapidly adjust the simulation temperature in the frame, and the test efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of engines, and in particular to a simulated cold flow test bench for testing engine intake air volume and flow rate. Background Technology

[0002] As the core power component of various mechanical equipment, the accurate evaluation and optimization of engine performance is crucial for improving the efficiency and reliability of the entire system.

[0003] In the process of engine research and development and testing, intake air volume flow rate testing is a key step. Simulated cold flow test bench engine intake air volume flow rate testing can accurately obtain its intake air volume data when the engine is not actually running under complex operating conditions. This is of great guiding significance for analyzing the engine's combustion efficiency, power output characteristics and emission performance.

[0004] However, traditional engine intake airflow testing equipment is mostly placed directly on the table, which is easily displaced and shaken by airflow impact or its own vibration, affecting the accuracy of the test and performance evaluation. At the same time, the ability to simulate and adjust the test environment temperature is weak, which is not conducive to quickly and flexibly simulating various temperature changes in actual engine operation. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] In view of the problems existing in the current simulated cold flow test bench for testing engine intake air volume and flow rate, this utility model is proposed.

[0007] Therefore, the purpose of this utility model is to provide a simulated cold flow test bench for engine intake air volume and flow rate testing. This is to solve the problem that "most traditional engine intake air volume and flow rate testing equipment is placed directly on the test bench, which is easily displaced and shaken by airflow impact or its own vibration, affecting the accuracy of testing and performance evaluation. At the same time, the ability to simulate and adjust the test environment temperature is weak, which is not conducive to quickly and flexibly simulating various temperature changes in the actual operation of the engine".

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution: including:

[0009] The main unit includes a frame, in which an engine body is placed. A cover plate is slidably connected to the frame. A perforated plate is fixedly connected to one inner wall of the frame. A positioning rod is movably connected to the perforated plate, and the bottom end of the positioning rod movably passes through the cover plate.

[0010] The measuring unit includes a connecting pipe, which is fixedly connected to the frame and matched with the engine body. A compressor is installed on the connecting pipe, and a flow meter is fixedly connected to the compressor. An analog component is installed on the frame, and a stabilizing component is installed inside the frame.

[0011] As a preferred embodiment of the simulated cold flow test bench engine intake air volume flow rate testing device of this utility model, the simulation component includes a bidirectional flow fresh air fan, which is fixedly connected to the frame. The two output ends of the bidirectional flow fresh air fan are fixedly connected to ducts, and the other ends of the two ducts movably pass through the frame.

[0012] As a preferred embodiment of the simulated cold flow test bench engine intake air volume flow rate testing device of this utility model, the stabilizing component includes two crossbars, both ends of which are fixedly connected to the inner wall of the frame. The arms of the two crossbars are slidably connected to two hollow plates. Multiple air outlet pipes are fixedly connected to the sides of the two hollow plates that are close to each other. Anti-slip pads are fixedly connected to both hollow plates.

[0013] As a preferred embodiment of the simulated cold flow test bench engine intake air volume flow rate testing device of this utility model, wherein: two hollow plates are fixedly connected to both sides of their opposite sides, and multiple collars are slidably connected to corresponding crossbars, and a pressure sensor is fixedly connected to one of the hollow plates.

[0014] As a preferred embodiment of the simulated cold flow test bench engine intake air volume flow rate testing device of this utility model, wherein: an exhaust fan is fixedly connected to one side inner wall of the frame, the input end of the exhaust fan moves through another hollow plate, and the output end of the exhaust fan moves through the frame.

[0015] As a preferred embodiment of the simulated cold flow test bench engine intake air volume flow rate testing device of this utility model, wherein: a regulated power supply is provided inside the frame, and the regulated power supply is interconnected with the compressor, flow meter, bidirectional flow fresh air fan, pressure sensor and exhaust fan through internal wiring harnesses.

[0016] The beneficial effects of this utility model are:

[0017] 1. The engine is placed in a frame with a sealed cover to prevent air leakage, ensuring the accuracy of the intake airflow test. The test data is then displayed by a compressor and flow meter. The connecting pipe is compatible with engines of different specifications. The bidirectional flow fresh air fan simulates the actual working cold flow environment. The hollow plate is pushed by the gas and the anti-slip soft pad clamps and fixes the engine, improving test stability and preventing shaking from affecting accuracy. Multiple air outlet pipes quickly adjust the simulated temperature inside the frame, improving test efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0019] Figure 1 This is a frontal overall structural diagram of a simulated cold flow test bench engine intake air volume and flow rate testing device proposed in this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the frame proposed in this utility model;

[0021] Figure 3 for Figure 2 A magnified structural diagram of region A.

[0022] In the diagram: 100, main unit; 101, frame; 102, cover plate; 103, perforated plate; 104, positioning rod; 200, measuring unit; 201, connecting pipe; 202, flow meter; 203, simulation component; 203a, bidirectional flow fresh air fan; 203b, duct; 204, stabilizing component; 204a, crossbar; 204b, hollow plate; 204c, air outlet pipe; 204d, anti-slip pad; 205, collar; 206, pressure sensor; 207, exhaust fan. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0026] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0027] Reference Figure 1-3 This utility model provides a device for simulating the intake air volume and flow rate of a cold flow test bench engine, comprising:

[0028] The main unit 100 includes a frame 101, in which an engine body is placed. A cover plate 102 is slidably connected to the frame 101. A perforated plate 103 is fixedly connected to one inner wall of the frame 101. A positioning rod 104 is movably connected to the perforated plate 103. The bottom end of the positioning rod 104 moves through the cover plate 102. The engine body is placed through the frame 101, and the frame 101 is sealed by the cover plate 102 to prevent air leakage during engine intake flow rate testing.

[0029] The measuring unit 200 includes a connecting pipe 201, which is fixedly connected to the frame 101. The connecting pipe 201 is matched with the engine body. A compressor is installed on the connecting pipe 201, and a flow meter 202 is fixedly connected to the compressor. An analog component 203 is installed on the frame 101, and a stabilizing component 204 is installed inside the frame 101. The flow meter 202 displays the test data of the engine intake air flow rate, and the connecting pipe 201 facilitates the interconnection of engines of different specifications.

[0030] The simulation component 203 includes a bidirectional flow fresh air fan 203a, which is fixedly connected to the frame 101. The two output ends of the bidirectional flow fresh air fan 203a are fixedly connected to ducts 203b, and the other ends of the two ducts 203b movably pass through the frame 101. The bidirectional flow fresh air fan 203a delivers the temperature airflow required for the simulation into the frame 101, which is beneficial for simulating the cold flow environment of the engine body in actual operation.

[0031] Furthermore, the stabilizing component 204 includes two crossbars 204a, both ends of which are fixedly connected to the inner wall of the frame 101. The arms of the two crossbars 204a are slidably connected to two hollow plates 204b. Multiple air outlet pipes 204c are fixedly connected to the sides of the two hollow plates 204b that are close to each other. Anti-slip pads 204d are fixedly connected to the two hollow plates 204b. The hollow plates 204b are pushed by the gas, which causes the anti-slip pads 204d to clamp and fix the engine body, improving the stability of the equipment when testing the intake air flow of the engine body and preventing shaking that could affect the accuracy of the test. The multiple air outlet pipes 204c can quickly change the simulated temperature inside the frame 101, improving the testing efficiency of the equipment. At the same time, the anti-slip pads 204d prevent damage to the engine body from force and the crossbars 204a guide the hollow plates 204b to prevent misalignment.

[0032] Furthermore, collars 205 are fixedly connected to both sides of the two hollow plates 204b that are far apart from each other. Multiple collars 205 are slidably connected to the corresponding crossbars 204a. A pressure sensor 206 is fixedly connected to one of the hollow plates 204b. The collars 205 prevent the movement of the movable plates 204b on both sides from affecting the use of the pressure sensor 206 and the exhaust fan 207. At the same time, the pressure sensor 206 detects the air pressure in the frame 101 to prevent excessive pressure from affecting the testing and use of the engine body.

[0033] Furthermore, an exhaust fan 207 is fixedly connected to one inner wall of the frame 101. The input end of the exhaust fan 207 moves through another hollow plate 204b, and the output end of the exhaust fan 207 moves through the frame 101. The exhaust fan 207 helps to relieve pressure on the frame 101 and keep the internal air pressure stable.

[0034] Furthermore, a regulated power supply is installed within the frame 101, and the regulated power supply is interconnected with the compressor, flow meter 202, bidirectional flow fresh air unit 203a, pressure sensor 206, and exhaust fan 207 via internal wiring harnesses. The compressor, flow meter 202, bidirectional flow fresh air unit 203a, pressure sensor 206, and exhaust fan 207 in the overall equipment are all existing technologies, and will not be described in detail here.

[0035] During use, the engine body is placed on the frame 101, and then the frame 101 is sealed by the cover plate 102 to prevent air leakage during engine intake flow rate testing. The test data of engine intake flow rate is displayed by the flow meter 202, and the connecting pipe 201 facilitates the interconnection of engines of different specifications. The bidirectional flow fresh air fan 203a delivers the required temperature airflow to the frame 101, which is beneficial for simulating the cold flow environment of the engine body in actual operation. The hollow plate 204b is pushed by the gas, which clamps and fixes the anti-slip pad 204d to the engine body, improving the stability of the equipment during engine intake flow rate testing and preventing shaking that could affect the accuracy of the test. The simulated temperature inside the frame 101 can be quickly changed through multiple air outlet pipes 204c, improving the testing efficiency of the equipment. At the same time, the anti-slip pad 204d avoids damage to the engine body due to force, and the crossbar 204a guides the hollow plate 204b to prevent misalignment.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A device for simulating the intake air volume and flow rate of a cold flow test bench engine, characterized in that: include: The main unit (100) includes a frame (101), in which an engine body is placed. A cover plate (102) is slidably connected to the frame (101). A perforated plate (103) is fixedly connected to the inner wall of one side of the frame (101). A positioning rod (104) is movably connected to the perforated plate (103). The bottom end of the positioning rod (104) moves through the cover plate (102). The measuring unit (200) includes a connecting pipe (201) which is fixedly connected to the frame (101). The connecting pipe (201) is matched with the engine body. A compressor is installed on the connecting pipe (201), and a flow meter (202) is fixedly connected to the compressor. An analog component (203) is installed on the frame (101), and a stabilizing component (204) is installed inside the frame (101).

2. The simulated cold flow test bench for engine intake air volume and flow rate as described in claim 1, characterized in that: The simulation component (203) includes a bidirectional flow fresh air fan (203a), which is fixedly connected to the frame (101). The two output ends of the bidirectional flow fresh air fan (203a) are fixedly connected to ducts (203b), and the other ends of the two ducts (203b) movably pass through the frame (101).

3. The simulated cold flow test bench for engine intake air volume and flow rate as described in claim 2, characterized in that: The stabilizing component (204) includes two crossbars (204a), both ends of which are fixedly connected to the inner wall of the frame (101). The arms of the two crossbars (204a) are slidably connected to two hollow plates (204b). Multiple air outlets (204c) are fixedly connected to the side of the two hollow plates (204b) that are close to each other. Anti-slip pads (204d) are fixedly connected to both hollow plates (204b).

4. The simulated cold flow test bench for engine intake air volume and flow rate as described in claim 3, characterized in that: Both sides of the two hollow plates (204b) that are far apart from each other are fixedly connected with collars (205), and multiple collars (205) are slidably connected to the corresponding crossbars (204a). A pressure sensor (206) is fixedly connected to one of the hollow plates (204b).

5. The simulated cold flow test bench for engine intake air volume and flow rate as described in claim 4, characterized in that: An exhaust fan (207) is fixedly connected to one inner wall of the frame (101). The input end of the exhaust fan (207) moves through another hollow plate (204b), and the output end of the exhaust fan (207) moves through the frame (101).

6. The simulated cold flow test bench for engine intake air volume and flow rate as described in claim 5, characterized in that: The frame (101) is equipped with a regulated power supply, and the regulated power supply is interconnected with the compressor, flow meter (202), bidirectional flow fresh air unit (203a), pressure sensor (206), and exhaust fan (207) through internal wiring harnesses.

Images