Engine sand and dust test box
By simulating a sand and dust environment using an engine sand and dust test chamber, the problem of the inability of existing technologies to realistically simulate engine testing under sand and dust conditions has been solved, achieving more accurate dust resistance testing.
Patent Information
- Application Number
- CN202422944776.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-11-29
AI Technical Summary
Existing technologies cannot realistically simulate the working environment of a vehicle's engine in dusty conditions, resulting in inaccurate dust resistance tests.
Design an engine dust test chamber, including a wind box, a blower, a blower duct, a dust collection device, a vortex duct, and connecting pipes. The blower provides airflow and the dust collection device provides dust to form a dust vortex, simulating a real dust environment, and then transports it to the engine body for testing.
It can more realistically simulate the working environment of the engine body under sand and dust conditions, and improve the accuracy of dust resistance testing.
Smart Images
Figure CN223470803U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to engine detection technical field, especially relate to a sand dust test box of engine. BACKGROUND
[0002] Engine is the core component of vehicle, provides power for vehicle, in order to ensure that the quality of engine meets the requirements, usually needs to test each index before leaving factory, and dust resistance test is one of them, and the purpose of dust resistance test is mainly to test whether the working condition of each component in engine under sand dust environment meets the requirements.
[0003] In prior art, dust resistance test of engine is usually designed a sand dust box, and the components in engine are placed in the sand dust box, then wind power and sand dust are sent to the sand dust box, but this kind of scene cannot simulate the working environment of engine under real sand dust working condition.
[0004] Therefore, how to simulate the working environment of engine body in vehicle under sand dust working condition, so as to more accurately carry out dust resistance test on engine body, becomes a technical problem to be solved in the field. UTILITY MODEL CONTENTS
[0005] The utility model aims at least solve how to simulate the working environment of engine body in vehicle under sand dust working condition, so as to more accurately carry out dust resistance test on engine body.
[0006] Firstly, the utility model provides a sand dust test box of engine for carrying out dust resistance test on engine body, and the sand dust test box of engine comprises a wind box with an inner cavity, an air inlet, a dust inlet, an outflow port, a backflow port and an output port are arranged on the outer wall of the wind box, a blower is used to provide wind power, a blast pipe is communicated with the blower at one end and communicated with the inner cavity through the air inlet at the other end, a dust adding device is communicated with the inner cavity through the dust inlet, a cyclone pipe is communicated with the inner cavity through the outflow port at one end and communicated with the inner cavity through the backflow port at the other end, and a connecting pipe is communicated with the inner cavity through the output port at the first end and used to communicate with the engine body at the second end.
[0007] The engine sand test box works as follows: the air blower is started to send air to the inner cavity of the wind box through the air supply pipeline, and sand is provided to the inner cavity through the dust inlet, the air and the sand in the inner cavity are mixed, and finally a sand cyclone is formed in the inner cavity through the cyclone pipeline, so as to simulate the actual sand environment, and the sand cyclone continuously enters the engine body through the connecting pipeline under the action of the air force. That is, the engine sand test box is in overall communication with the engine body during actual testing, rather than only testing the dust resistance of the parts in the engine, so that the working environment of the engine body in the vehicle under the sand working condition can be more truly simulated, and the dust resistance of the engine body can be more accurately tested.
[0008] In some embodiments of the present application, the first end of the connecting pipeline is provided with an air filter.
[0009] In some embodiments of the present application, the inner cavity is provided with a sand concentration sensor for detecting the concentration of sand in the inner cavity, and a gas pressure sensor for detecting the gas pressure in the inner cavity.
[0010] In some embodiments of the present application, an axial flow fan is arranged at the backflow port, and the axial flow fan is configured to provide air force in the direction from the backflow port to the outflow port.
[0011] In some embodiments of the present application, a control valve is arranged at the dust inlet, and the control valve is used to control the amount of sand entering the inner cavity from the sand adding device.
[0012] In some embodiments of the present application, a check valve is arranged inside the air supply pipeline, and the check valve is used to prevent the air in the inner cavity from flowing back to the air blower.
[0013] In some embodiments of the present application, the wind box comprises: a box body, the inner cavity is located inside the box body, and the box body has an opening; and a box door for plugging the opening.
[0014] In some embodiments of the present application, an observation window is arranged on the box door.
[0015] In some embodiments of the present application, a dust scraper is arranged in the inner cavity, and the dust scraper is configured to scrape off the sand attached to the observation window.
[0016] In some embodiments of the present application, the engine sand test box further comprises a support for supporting the wind box.
[0017] The above description is only a summary of the technical solutions of the present application, in order to more clearly understand the technical means of the present application, the specific embodiments of the present application can be implemented according to the content of the specification, and in order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. The same reference numerals are used throughout the accompanying drawings to denote the same components. In the accompanying drawings:
[0019] Figure 1 This is a schematic structural diagram of an engine dust test chamber provided in an embodiment of the present utility model.
[0020] The reference numerals are as follows:
[0021] 100. Engine dust test chamber;
[0022] 1000, bellows; 1100, inner cavity; 1110, dust concentration sensor; 1120, air pressure sensor; 1200, box body; 1300, box door; 1310, observation window;
[0023] 2000, air blower;
[0024] 3000, air supply pipe; 3100, check valve;
[0025] 4000, swirl pipeline; 4100, axial flow fan;
[0026] 5000, connecting pipe; 5100, air filter;
[0027] 6000, connecting pipe mounting frame;
[0028] 7000, control valve;
[0029] 8000, bracket; 8100, base; 8200, support rod;
[0030] 9000, control screen;
[0031] A. Installation space. DETAILED DESCRIPTION
[0032] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.
[0033] It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and "has" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order in which they are described, unless specifically identified as an order dependent step. It is also to be understood that additional or alternative steps can be employed.
[0034] Although the terms first, second, third, etc. can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first", "second", and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
[0035] Spatially relative terms, such as "inner", "outer", "inward", "outward", "lower", "bottom", "top", "upper", and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. Such spatially relative terms can encompass different orientations of the device in use or operation, depending on the particular context in which it is used. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
[0036] Figure 1 A structural schematic diagram of the engine sand and dust test box provided by the embodiment of the present application is shown in Figure 1As shown, the utility model embodiment provides a kind of engine sand test box 100, for dust resistance test to engine body, engine sand test box 100 includes: wind box 1000, with inner cavity 1100, the outer wall of wind box 1000 is equipped with air inlet, dust inlet, outflow port, backflow port and output port;Air blower 2000, for providing wind power;Air supply pipeline 3000, one end of air supply pipeline 3000 is communicated with air blower 2000, another end of air supply pipeline 3000 is communicated with inner cavity 1100 by air inlet;Dust adding device, is communicated with inner cavity 1100 by dust inlet;Rotational flow pipeline 4000, one end of rotational flow pipeline 4000 is communicated with inner cavity 1100 by outflow port, another end of rotational flow pipeline 4000 is communicated with inner cavity 1100 by backflow port;And connecting pipeline 5000, the first end of connecting pipeline 5000 is communicated with inner cavity 1100 by output port, the second end of connecting pipeline 5000 is used to be communicated with engine body.
[0037] Wherein, the inner wall of wind box 1000 can be polished to prevent sand dust from adhering to the inner wall of wind box 1000.
[0038] In addition, it is easy to understand that the connecting pipeline mounting rack 6000 for mounting the connecting pipeline 5000 can be arranged in the inner cavity 1100, and the connecting pipeline mounting rack 6000 can improve the stability of the connecting pipeline 5000.
[0039] In this embodiment, when the engine sand test box 100 is working, the air blower 2000 is started to deliver wind power to the inner cavity 1100 of the wind box 1000 through the air supply pipeline 3000. The path of the wind power delivered by the air blower 2000 in the air supply pipeline 3000 can be indicated by the relatively thick solid straight arrow in FIG. 1. Figure 1 At the same time, sand dust is provided into the inner cavity 1100 through the dust inlet. The wind and sand dust entering the inner cavity 1100 are mixed in the inner cavity 1100 and finally form a sand dust rotational flow in the inner cavity 1100 through the rotational flow pipeline 4000 to simulate an actual sand dust environment. The path of the sand dust rotational flow can be indicated by the relatively thin solid straight arrow in FIG. 1. Figure 1 The sand dust rotational flow continuously enters the engine body through the output port of the wind box 1000 and the connecting pipeline 5000 under the action of the wind power, as indicated by the dashed straight arrow in FIG. 1. Figure 1
[0040] As described above, the engine sand test box 100 is in overall communication with the engine body during actual testing, rather than only dust resistance test on the internal parts of the engine. Therefore, the working environment of the engine body in a vehicle under a sand dust working condition can be more realistically simulated, and the engine body can be more accurately tested for dust resistance.
[0041] As shown in FIG. 1, Figure 1 As shown, according to an optional embodiment of the present application, the first end of the connecting pipeline 5000 is provided with an air filter 5100.
[0042] In this embodiment, the air filter 5100 is arranged at the first end of the connecting pipeline 5000, that is, the dust and sand flowing out of the air bellow 1000 is filtered by the air filter 5100 before entering the engine body through the connecting pipeline 5000, so as to more truly simulate the working environment of the engine body in the vehicle under the dust working condition, thereby being capable of more accurately testing the dust resistance of the engine body.
[0043] It is easy to understand that the air filter 5100 can be selected as an engine air inlet filter element, and the type and specification of the engine air inlet filter element can be determined according to the distance type of the engine body, without specific limitation.
[0044] Reference Figure 1 , according to an optional embodiment of the present application, the inner cavity 1100 is configured with: a dust concentration sensor 1110 for detecting the concentration of dust in the inner cavity 1100; and a gas pressure sensor 1120 for detecting the gas pressure in the inner cavity 1100.
[0045] Since the function of the engine dust test box 100 is to simulate the actual dust environment, and the gas pressure and dust concentration of the actual dust environment are within a certain range.
[0046] Therefore, in this embodiment, the dust concentration sensor 1110 and the gas pressure sensor 1120 are arranged to detect the dust concentration and gas pressure in the inner cavity 1100 of the air bellow 1000 in real time, thereby being capable of ensuring more realistic simulation of the actual dust environment.
[0047] Reference Figure 1 , specifically, the engine dust test box 100 can also be configured with a control screen 9000, the control screen 9000 is signal connected with the dust concentration sensor 1110 and the gas pressure sensor 1120, and the control screen 9000 is used for real-time display of the dust concentration value and the gas pressure value in the inner cavity 1100; in this way, the operator can control the air supply amount of the air blower 2000 and the amount of dust delivered by the dust adding device into the inner cavity 1100 according to the different real-time monitoring results.
[0048] As Figure 1 shown, according to an optional embodiment of the present application, an axial flow fan 4100 is arranged at the backflow port, and the axial flow fan 4100 is configured to provide wind power in the direction from the backflow port to the outflow port.
[0049] In this embodiment, since a key factor in simulating the actual dust environment is that the dust can eventually form a dust vortex in the inner cavity 1100 through the vortex duct 4000 under the action of wind, the setting of the axial flow fan 4100 can further improve the generation efficiency of the vortex duct 4000; and the axial flow fan 4100 is configured to be able to provide wind force in the direction from the return port toward the outlet, that is, the dust particles can be fully mixed under the action of the two wind forces of the blower 2000 and the axial flow fan 4100 and finally have sufficient initial power to enter the vortex duct 4000 and finally flow back to the inner cavity 1100 from the return port of the bellows 1000, thereby ensuring the formation of the final dust vortex.
[0050] Therefore, this method of providing an axial flow fan 4100 at the return port can further ensure the formation of a dust vortex, thereby more realistically simulating the actual dust environment, and furthermore, more accurately performing dust resistance testing on the engine body.
[0051] Specifically, the bellows 1000 can be a rectangular body, that is, a cuboid; the air inlet is arranged on the right side of the bellows 1000, the air outlet is arranged on the left side of the bellows 1000, the dust inlet and the return flow port are both arranged on the top surface of the bellows 1000, the outlet is arranged on the bottom surface of the bellows 1000, and the outlet and the return flow port are symmetrically arranged relative to the bellows 1000, so that the axial flow fan 4100 can more conveniently provide wind force in the direction from the return flow port toward the outlet.
[0052] refer to Figure 1 According to an optional embodiment of the present invention, a control valve 7000 is provided at the dust inlet, and the control valve 7000 is used to control the amount of sand and dust entering the inner cavity 1100 from the dust adding device.
[0053] From the above, it can be seen that in order to more realistically simulate the actual dust environment, it is necessary to control the air supply volume of the blower 2000 and the amount of dust transported into the inner cavity 1100 by the dust adding device to ensure the dust concentration and air pressure in the inner cavity 1100 of the bellows 1000.
[0054] Therefore, in this embodiment, a control valve 7000 is provided to more conveniently control the amount of sand and dust entering the inner cavity 1100 from the dust adding device.
[0055] Among them, the opening degree of the control valve 7000 can be adjusted. The greater the opening degree, the more sand and dust enter the inner cavity 1100 in the same time period and the faster the dust adding rate; conversely, the smaller the opening degree, the less sand and dust enter the inner cavity 1100 in the same time period and the slower the dust adding rate.
[0056] In addition, it is easy to understand that when the engine sand test box 100 comprises the control panel 9000, the control panel 9000 can also be in signal connection with the control valve 7000 and the air blower 2000, and the control panel 9000 is provided with a control unit which is configured to be able to control the air supply amount of the air blower 2000 and the opening degree of the control valve 7000 according to the sand concentration information and the air pressure information in the inner cavity 1100 detected by the sand concentration sensor 1110 and the air pressure sensor 1120, so as to ensure that the sand in the inner cavity 1100 always meets the requirement of being able to truly simulate the actual sand environment, thereby being able to more accurately test the dust resistance of the engine body.
[0057] With reference to the foregoing Figure 1 , according to an optional embodiment of the present application, the inside of the air supply pipeline 3000 is provided with a check valve 3100, which is used to prevent the wind in the inner cavity 1100 from flowing back to the air blower 2000.
[0058] In the embodiment, due to the presence of the check valve 3100, the wind force conveyed by the air blower 2000 into the inner cavity 1100 cannot flow back to the air blower 2000, thereby ensuring that the sand entering the inner cavity 1100 cannot enter the air blower 2000 along with the backflow wind, ensuring the service life of the air blower 2000, and further ensuring that the sand can be fully mixed in the inner cavity 1100, i.e., ensuring the working efficiency of the engine sand test box 100.
[0059] It is easy to understand that the check valve 3100 should be arranged in the air supply pipeline 3000 close to the air inlet, and in principle, the distance between the check valve 3100 and the air inlet should be as small as possible; in this way, the distance of the backflow wind mixed with sand flowing in the air supply pipeline 3000 can be more effectively reduced, further ensuring the air supply efficiency, and also playing a certain protection role on the air supply pipeline 3000.
[0060] As shown in Figure 1 , according to an optional embodiment of the present application, the air bellow 1000 comprises: a box body 1200, the inner cavity 1100 is located inside the box body 1200, and the box body 1200 has an opening; and a box door 1300 used to block the opening.
[0061] In the embodiment, it is easy to understand that the air bellow 1000 is provided with the box door 1300, which can facilitate the installation and maintenance of the components (such as the sand concentration sensor 1110, the air pressure sensor 1120, etc.) in the inner cavity 1100, and the subsequent cleaning of the inner cavity 1100 will also be more convenient.
[0062] With reference to the foregoing Figure 1 , according to an optional embodiment of the present application, the box door 1300 is provided with an observation window 1310.
[0063] In the embodiment, the observation window 1310 is arranged to facilitate the operator to observe the situation in the inner cavity 1100 of the wind box 1000; the observation window 1310 can be made of glass.
[0064] According to an optional embodiment of the utility model, a dust scraper is arranged in the inner cavity 1100, and the dust scraper is configured to scrape off the dust adhered to the observation window 1310.
[0065] In the embodiment, as known from the above, to prevent the dust from adhering to the observation window 1310, the dust scraper is arranged to scrape off the dust, so as to ensure that the operator can clearly observe the situation in the inner cavity 1100 through the observation window 1310.
[0066] In addition, it is easy to understand that when the engine dust test box 100 comprises the control screen 9000, the control screen 9000 can also be signal-connected with the dust scraper, so as to more conveniently start or stop the work of the dust scraper.
[0067] Continuing to refer to Figure 1 , according to an optional embodiment of the utility model, the engine dust test box 100 further comprises a support 8000, and the support 8000 is used to support the wind box 1000.
[0068] In the embodiment, it is easy to understand that the arrangement of the support 8000 can make the wind box 1000 be placed more stably.
[0069] Specifically, the support 8000 can comprise a base 8100 and a support rod 8200, one end of the support rod 8200 is connected with the base 8100, and the other end of the support rod 8200 is fixedly connected with the outer wall of the wind box 1000, so as to support the wind box 1000; and the number of the support rod 8200 is not limited, and it is only required to ensure that the wind box 1000 can be stably supported.
[0070] In addition, as known from the above, when the outflow port is arranged at the bottom surface of the wind box 1000, the arrangement of the support 8000 can provide an installation space A for installing the cyclone pipe at the lower part of the wind box 1000, so as to more facilitate the assembly of the cyclone pipe.
[0071] The above is only a preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.
Claims
1. An engine dust test chamber for performing dust resistance tests on an engine body, characterized by comprising: The engine sand and dust test box comprises: a wind box having an inner cavity, an outer wall of the wind box being provided with an air inlet, a dust inlet, an outflow port, a backflow port and an output port; an air blower for providing air; an air supply pipeline, one end of the air supply pipeline being in communication with the air blower, and the other end of the air supply pipeline being in communication with the inner cavity through the air inlet; a dust feeding device, the dust feeding device being in communication with the inner cavity through the dust inlet; a cyclone pipeline, one end of the cyclone pipeline being in communication with the inner cavity through the outflow port, and the other end of the cyclone pipeline being in communication with the inner cavity through the backflow port; and a connecting pipeline, a first end of the connecting pipeline being in communication with the inner cavity through the output port, and a second end of the connecting pipeline being used for being in communication with the engine body.
2. The engine dust test chamber of claim 1, wherein, The first end of the connecting pipeline is provided with an air filter.
3. The engine dust test chamber of claim 1, wherein, The inner cavity is provided with: a sand and dust concentration sensor for detecting the concentration of sand and dust in the inner cavity; and an air pressure sensor for detecting the air pressure in the inner cavity.
4. The engine dust test chamber of claim 1, wherein, An axial flow fan is arranged at the backflow port, and the axial flow fan is configured to be capable of providing air in a direction from the backflow port to the outflow port.
5. The engine dust test chamber of claim 1, wherein, A control valve is arranged at the dust inlet, and the control valve is used for controlling the amount of sand and dust entering the inner cavity from the dust feeding device.
6. The engine dust test chamber of claim 1, wherein, A check valve is arranged inside the air supply pipeline, and the check valve is used for preventing air in the inner cavity from flowing back to the air blower.
7. The engine dust test chamber of claim 1, wherein, The wind box comprises: a box body, the inner cavity being located inside the box body, the box body having an opening; a box door for blocking the opening.
8. The engine dust test chamber of claim 7, wherein, An observation window is arranged on the box door.
9. The engine dust test chamber of claim 8, wherein, A dust scraper is arranged in the inner cavity, and the dust scraper is configured to be capable of scraping off sand and dust adhered to the observation window.
10. The engine dust test chamber according to any one of claims 1 to 9, characterized in that The engine sand and dust test box further comprises a support for supporting the wind box.