Dust filtering test device of vehicle air filter

Abstract

The invention relates to the technical field of vehicle air filter testing, in particular to a dust filtering testing device for a vehicle air filter, which comprises two transmission chain belts rotating coaxially, the transmission chain belts are arranged at the top of a bearing supporting plate, and a plurality of groups of bearing seats are fixedly connected to adjacent sides of the two transmission chain belts at equal intervals. A frame is fixedly connected to the side wall of the bearing seat, multiple sets of guide sliding rods are fixedly connected to the inner side wall of the frame, connecting frames are arranged on the outer side of the frame, and the adjacent sides of the two connecting frames are fixedly connected with the same lower supporting frame; compared with the prior art, forward and reverse dust testing is carried out on the vehicle filter to evaluate the filtering effect in different airflow directions, synchronous and reciprocating horizontal movement of the vehicle air filter is achieved through cooperation of a conveying chain belt and other structures, and the actual performance of the filter is more truly reflected through multidirectional and multi-angle comprehensive testing and bidirectional continuous testing.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle air filter testing, and specifically to a dust filtration test device for vehicle air filters. Background Art

[0002] Vehicle filters are one of the important components of automobiles. They are mainly used to filter the air entering the engine, prevent impurities such as dust and sand grains from entering the cylinder, ensure the cleanliness of the air, enable the engine to burn and work properly, reduce the wear of internal engine components by filtering impurities in various media, reduce the probability of faults, and extend the service life of the engine.

[0003] At present, there are many unsolved problems in vehicle filter testing technology. In the prior art, only forward testing can be carried out, completely ignoring the reverse air flow conditions. Special situations such as engine backfire in vehicles cannot be simulated, resulting in a major lack in the performance evaluation of filters and making it difficult to ensure their effectiveness under complex working conditions. Moreover, in terms of the continuity and comprehensiveness of testing, due to the lack of the function of continuous forward and reverse testing, the actual situation where the air flow direction constantly changes during vehicle driving cannot be fully simulated. This causes a large number of blind spots in the filter performance testing, making it difficult to obtain accurate performance data of the filter in a complex air flow environment. The discontinuous testing method also makes the test results lack continuity and comparability. Summary of the Invention

[0004] The purpose of the present invention is to provide a dust filtration test device for vehicle air filters to solve the problems mentioned in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A dust filtration test device for vehicle air filters includes two coaxially rotating conveyor belts. The conveyor belts are arranged on the top of a load-bearing support plate. Multiple groups of bearing seats are fixedly connected at equal intervals on the adjacent sides of the two conveyor belts. A frame is fixedly connected to the side wall of the bearing seat. Multiple groups of guiding slide bars are fixedly connected to the inner side wall of the frame. An adapter frame is arranged outside the frame. The adjacent sides of two adapter frames are both fixedly connected to the same lower support frame;

[0006] The bottom of the end of the adapter frame far from the lower support frame is fixedly connected with a guiding convex block. Multiple groups of equipment frames one and two are fixedly installed at the middle position of the top of the load-bearing support plate through cushion strips, and the equipment frame one and the equipment frame two are arranged at intervals.

[0007] Further, tracks are arranged on both sides of the top of the load-bearing support plate and on the sides of the equipment frame one and the equipment frame two. Periodic sliding grooves corresponding to the outer contour of the track are opened at the top of the track. The guiding convex block is slidably connected in the sliding groove.

[0008] Further, an upper cover frame that cooperates with it is provided at the top of the lower support frame. Clamping grooves that match the outer contour of the air filter are provided on one adjacent side of the lower support frame and the upper cover frame. A rectangular insertion groove is provided at the top of the lower support frame and outside the clamping groove. Magnet attracting blocks that attract each other are fixedly connected to the bottom of the upper cover frame and the inner wall of the rectangular insertion groove.

[0009] Further, a corresponding equipment frame three and equipment frame four are provided directly above the equipment frame one and the equipment frame two;

[0010] Partition boards corresponding to their outer contours are fixedly connected to both sides of the equipment frame one, the equipment frame two, the equipment frame three, and the equipment frame four.

[0011] Further, dust sensors are fixedly installed at the bottom of the inner wall of the equipment frame one and the top of the inner wall of the equipment frame four. Air blowing covers are fixedly installed at the bottom of the inner wall of the equipment frame two and the top of the inner wall of the equipment frame three. The air blowing covers are connected to an external compressed air type dust generator through pipelines.

[0012] Further, the equipment frame one and the equipment frame two are connected end to end, and the equipment frame three and the equipment frame four are connected end to end.

[0013] Further, a guiding groove that cooperates with the guiding slide rod is provided at one end of the connecting frame. The connecting frame is slidably connected to the outside of the guiding slide rod through the guiding groove.

[0014] Further, both the equipment frame three and the equipment frame four are fixed by support rods correspondingly installed on both sides at the top of the load-bearing support plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. When the present invention is in use, from the perspectives of test performance and simulation of actual working conditions, the present invention will conduct forward and reverse dust tests on vehicle filters to comprehensively evaluate the filtering effect of the filter in different air flow directions. And through the cooperation of the external compressed air type dust generator and the air blowing cover, it simulates the real scenario of air carrying dust into the filter during vehicle driving. At the same time, under the mutual cooperation of structures such as the conveyor chain belt, the bearing seat, the frame, the guiding slide rod, the track, the guiding convex block, and the lower support frame, the vehicle air filter realizes reciprocating horizontal movement while moving synchronously with the conveyor chain belt, thereby realizing multi-faceted and multi-angle comprehensive testing of the vehicle air filter. And through two-way continuous testing, it can more truly reflect the performance of the filter in actual use.

[0017] 2. The lower support frame and the upper cover frame fix the filter through the card slots and magnetic attraction blocks, ensuring that the filter will not be displaced during the test, guaranteeing the accuracy of the test results. At the same time, it is also convenient for the operator to install, test, replace the filter and other operations, improving the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] For the convenience of those skilled in the art to understand, the present invention will be further described below in conjunction with the accompanying drawings;

[0019] Figure 1 is a three-dimensional view of a partial section structure of the present invention;

[0020] Figure 2 is a schematic structural diagram of equipment frame 1 and equipment frame 2 in the present invention;

[0021] Figure 3 is a schematic structural diagram of the dust sensor and the air blowing cover in the present invention;

[0022] Figure 4 is a schematic structural diagram of equipment frame 3 and equipment frame 4 in the present invention;

[0023] Figure 5 is a schematic structural diagram of the rectangular insertion slot in the present invention;

[0024] Figure 6 is a schematic structural diagram of the magnetic attraction block in the present invention;

[0025] Figure 7 is a top view of the overall structure of the conveyor chain belt of the present invention.

[0026] Reference numerals: 100, conveyor chain belt; 200, load-bearing support plate; 3, bearing seat; 4, frame; 5, guide slide bar; 6, track; 701, equipment frame 1; 702, equipment frame 2; 703, equipment frame 3; 704, equipment frame 4; 8, guide convex block; 901, lower support frame; 902, upper cover frame; 903, rectangular insertion slot; 904, magnetic attraction block; 10, connection frame; 11, partition; 12, dust sensor; 13, air blowing cover. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Embodiment 1: As Figures 1 - 7As shown in the figure, a dust filtration test device for a vehicle air filter includes two coaxial rotating conveyor belts 100. Setting the two conveyor belts 100 to rotate coaxially can achieve the synchronization and consistency during the movement of the two conveyor belts 100. It should be explained here that:

[0029] Figure 1 This is a section of the overall structure of the present invention. The conveyor belt 100 is arranged on the top of the load-bearing support plate 200. On the adjacent sides of the two conveyor belts 100, a plurality of groups of bearing seats 3 are fixedly connected at equal intervals. A frame 4 is fixedly connected to the side wall of the bearing seat 3. A plurality of guiding slide bars 5 are fixedly connected to the inner side wall of the frame 4. An adapter frame 10 is arranged outside the frame 4. One side of the two adjacent adapter frames 10 is fixedly connected to the same lower support frame 901. One end of the adapter frame 10 is provided with a guiding groove that cooperates with the guiding slide bar 5. The adapter frame 10 is slidably connected to the outside of the guiding slide bar 5 through the guiding groove.

[0030] At the bottom of the end of the adapter frame 10 away from the lower support frame 901, a guiding convex block 8 is fixedly connected. At the middle position of the top of the load-bearing support plate 200, a plurality of equipment frames one 701 and equipment frames two 702 are fixedly installed through cushion strips, and the equipment frames one 701 and the equipment frames two 702 are arranged at intervals. Above the equipment frames one 701 and the equipment frames two 702, corresponding equipment frames three 703 and equipment frames four 704 are provided. The equipment frames one 701 and the equipment frames two 702 are connected end to end, and the equipment frames three 703 and the equipment frames four 704 are connected end to end. The equipment frames three 703 and the equipment frames four 704 are both fixed by support rods correspondingly installed on both sides of the top of the load-bearing support plate 200;

[0031] On both sides of the equipment frames one 701, the equipment frames two 702, the equipment frames three 703, and the equipment frames four 704, partitions 11 corresponding to their outer contours are fixedly connected, which are used to assist in blocking the parts of the vehicle air filter exposed outside the equipment frames one 701, the equipment frames two 702, the equipment frames three 703, and the equipment frames four 704 during the movement;

[0032] At the bottom of the inner wall of the equipment frame one 701 and the top of the inner wall of the equipment frame four 704, dust sensors 12 are fixedly installed. The dust sensors 12 in the equipment frames one 701 and the equipment frames four 704 are respectively located below and above the vehicle air filter. At the bottom of the inner wall of the equipment frame two 702 and the top of the inner wall of the equipment frame three 703, air blowing covers 13 are fixedly installed. The air blowing covers 13 are connected to an external compressed air type dust generator through pipelines;

[0033] It should be explained here that the compressed air type dust generator is the source of generating dust-containing gas. It will fully mix the dust with the air to form a stable dust-containing air flow, providing dust conditions that simulate the real environment for the test. The blowing hood 13 is responsible for uniformly guiding the dust-containing gas generated by the compressed air type dust generator to the surface of the vehicle air filter at a specific angle and flow rate, ensuring that all parts of the vehicle air filter can be impacted by dust under the same conditions, making the test more accurate and reliable;

[0034] When the device starts and enters the test session, the external compressed air type dust generator starts to work. The internal compressed air raises and fully mixes the dust to form a dust-containing gas with a certain concentration. The dust-containing gas is transported to the blowing hood 13 through a pipeline. In the forward test stage, the blowing hood 13 at the bottom of the inner wall of the equipment frame two 702 blows out the dust-containing gas, simulating the situation where air enters the vehicle air filter from the air inlet when the vehicle is driving normally. The dust-containing gas enters from the intake side of the vehicle air filter and is discharged from the outlet side after passing through the vehicle air filter, completing the forward test;

[0035] The conveyor belt 100 drives the filter to move to the position of the equipment frame three 703 for the reverse test. At this time, the blowing hood 13 at the top of the inner wall of the equipment frame three 703 starts to work. The dust-containing gas enters from the outlet side of the vehicle air filter and is discharged from the intake side, thereby simulating the filtration situation of the filter when the air flow reverses under special working conditions that the vehicle may encounter. The dust sensor 12 detects the dust content of the filtered gas. Through these data, the filtration efficiency of the filter in different air flow directions can be accurately calculated using the formula "filtration efficiency = (initial dust concentration - filtered dust concentration) / initial dust concentration × 100%", so as to realize the quantitative evaluation of the filtration performance of the filter.

[0036] Embodiment 2: Tracks 6 are provided on the top of the load-bearing support plate 200 and on both sides of the equipment frame one 701 and the equipment frame two 702. Periodic sliding grooves corresponding to the outer contour of the track 6 are opened at the top of the track 6, and the guiding convex block 8 is slidably connected to the sliding groove.

[0037] An upper cover frame 902 that cooperates with it is provided on the top of the lower support frame 901. Clamping grooves that match the outer contour of the air filter are opened on the adjacent sides of the lower support frame 901 and the upper cover frame 902. A rectangular insertion groove 903 is opened on the top of the lower support frame 901 and outside the clamping groove. Magnet attracting blocks 904 that attract each other are fixedly connected to the bottom of the upper cover frame 902 and the inner wall of the rectangular insertion groove 903. Specifically, the installation of the vehicle air filter is as follows:

[0038] Place the rectangular vehicle air filter between the lower support frame 901 and the upper cover frame 902. The clamping grooves on the adjacent sides of the lower support frame 901 and the upper cover frame 902, which are matched with the outer contour of the vehicle air filter, can accurately position the filter to ensure its stable installation. At the same time, the rectangular insertion slot 903 outside the clamping groove at the top of the lower support frame 901 and the magnetic attraction block 904 at the bottom of the upper cover frame 902 attract each other, further enhancing the tightness of the connection, preventing the filter from shifting during the test, and also facilitating operations such as installation, testing, and replacement of the filter by the operator, improving the test efficiency.

[0039] Combining Embodiment 1 and Embodiment 2, the working principle of the present invention is as follows:

[0040] Conveying process: When the conveyor chain belt 100 rotates, it drives the carrier seat 3, the frame 4, the connection frame 10, and the lower support frame 901 and the vehicle air filter installed thereon to move together. The tracks 6 on both sides of the equipment frame 1 701 and the equipment frame 2 702 at the top of the load-bearing support plate 200, with periodic sliding grooves opened on their tops, are slidably connected to the guiding convex blocks 8 at the bottom of the connection frame 10, which not only provides stable guidance for the entire conveying process but also ensures the smoothness of the filter during movement.

[0041] Forward dust test: When the lower support frame 901 with the filter installed moves to the position of the equipment frame 2 702 along with the conveyor chain belt 100, the air blowing cover 13 at the bottom of the inner wall of the equipment frame 2 702 starts to work. The air blowing cover 13 is connected to an external compressed air dust generator through a pipeline. The dust-containing gas generated by the external compressed air dust generator is blown out through the air blowing cover 13 to simulate the situation where air carries dust into the vehicle air filter during vehicle driving. At this time, the dust-containing gas enters from the intake side of the vehicle air filter and is discharged from the outlet side after passing through the vehicle air filter. The dust sensor 12 at the bottom of the inner wall of the equipment frame 1 701 is used to detect the dust content in the gas after passing through the vehicle air filter. By analyzing the data detected by the dust sensor 12, the filtering effect of the filter under the action of the forward air flow, such as the filtering efficiency and the interception ability of dust with different particle sizes, is evaluated.

[0042] Reverse dust test: After the forward test is completed, the conveyor chain belt 100 continues to rotate, driving the filter to move to the equipment frame 3 703. At this time, the air blowing cover 13 at the top of the inner wall of the equipment frame 3 703 starts to work, and the dust-containing gas enters from the outlet side of the filter and is discharged from the intake side, simulating the influence of the reverse air flow on the filter. The dust sensor 12 at the top of the inner wall of the equipment frame 4 704 detects the dust content in the gas after reverse filtration, so as to evaluate the filtering performance of the filter under the action of the reverse air flow and judge the reliability of the filter under special working conditions, such as when the air flow reverses due to engine backfire in the vehicle.

[0043] Comprehensive test performance: This device conducts forward and reverse dust tests on vehicle air filters. Compared with the traditional single-direction test method, it can more comprehensively evaluate the filtration performance of vehicle air filters. Under different working conditions, the filtration effect of vehicle air filters may vary. At the same time, during the synchronous movement of the vehicle air filter along the conveyor belt 100, reciprocating horizontal movement is also achieved through the mutual cooperation of structures such as the conveyor belt 100, the bearing seat 3, the frame 4, the guiding slide rod 5, the track 6, the guiding convex block 8, and the lower support frame 901. Thus, a comprehensive test of the vehicle air filter in multiple directions and at multiple angles is realized. Moreover, through two-way continuous testing, the performance of the filter in actual use can be more truly reflected.

[0044] Precisely simulate actual working conditions: By using an external compressed air type dust generator in cooperation with the blowing hood 13, the actual scenario of air carrying dust into the vehicle air filter during vehicle driving is simulated, making the test environment closer to real usage conditions. This helps to discover potential problems in the actual application of vehicle air filters, such as filtration dead corners and poor sealing, so as to make targeted improvements and optimizations to improve the practicality and reliability of vehicle air filters.

[0045] Accurate data monitoring: The dust sensors 12 installed in the equipment frame one 701 and the equipment frame four 704 can detect the dust content in the gas filtered by the filter in real time and accurately, further evaluating the filtration performance of the vehicle air filter and providing a quantitative basis for the quality control and performance optimization of the vehicle air filter.

[0046] Strong scalability and versatility: When it is necessary to test filters of different specifications or types, the lower support frame 901, the upper cover frame 902 and other components can be replaced, and the size and shape of the card slots can be adjusted to adapt to different filters, with strong versatility, reducing the R & D and use costs of the test equipment.

[0047] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to only the specific implementation manners. Obviously, many modifications and changes can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the relevant technical fields can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A dust filtration test device for a vehicle air filter, comprising two coaxially rotating conveyor chains (100), characterized in that: The conveyor chain belt (100) is arranged on the top of the load-bearing support plate (200), and a plurality of groups of bearing seats (3) are fixedly connected at equal intervals on the adjacent side of two conveyor chain belts (100), the side wall of the bearing seat (3) is fixedly connected with a frame (4), the inner side wall of the frame (4) is fixedly connected with a plurality of groups of guide slide bars (5), and a connection frame (10) is arranged on the outer side of the frame (4), and the adjacent sides of the two connection frames (10) are fixedly connected with the same lower support frame (901); A guide protrusion (8) is fixedly connected to the bottom of one end of the connection frame (10) away from the lower support frame (901), and a plurality of sets of device frames 1 (701) and 2 (702) are fixedly installed at the middle position of the top of the load-bearing support plate (200) through a cushion strip, and the device frames 1 (701) and 2 (702) are arranged at intervals.

2. The dust filtration test device for a vehicle air filter according to claim 1, characterized in that: A track (6) is provided at the top of the load-bearing support plate (200) and on both sides of the equipment frame 1 (701) and the equipment frame 2 (702). A periodic sliding groove corresponding to the outer contour of the track (6) is opened at the top of the track (6), and the guide protrusion (8) is slidably connected to the sliding groove.

3. The dust filtration test device for a vehicle air filter according to claim 2, characterized in that: The top of the lower support frame (901) is provided with an upper cover frame (902) that cooperates with it, and the adjacent sides of the lower support frame (901) and the upper cover frame (902) are each provided with a slot that cooperates with the outer contour of the air filter, and a rectangular plug-in slot (903) is provided on the top of the lower support frame (901) and located on the outside of the slot, and the bottom of the upper cover frame (902) and the inner wall of the rectangular plug-in slot (903) are fixedly connected with magnetic blocks (904) that attract each other.

4. The dust filtration test device for a vehicle air filter according to claim 3, characterized in that: The corresponding device frame three (703) and device frame four (704) are arranged directly above the device frame one (701) and the device frame two (702); Both sides of the device frame 1 (701), the device frame 2 (702), the device frame 3 (703) and the device frame 4 (704) are fixedly connected with partitions (11) corresponding to their outer contours.

5. The dust filtration test device for a vehicle air filter according to claim 4, characterized in that: A dust sensor (12) is fixedly installed at the bottom of the inner wall of the equipment frame 1 (701) and the top of the inner wall of the equipment frame 4 (704), and an air blowing hood (13) is fixedly installed at the bottom of the inner wall of the equipment frame 2 (702) and the top of the inner wall of the equipment frame 3 (703), and the air blowing hood (13) is connected to an external compressed air dust generator through a pipeline.

6. The dust filtration test device for a vehicle air filter according to claim 5, characterized in that: The device frame one (701) is connected end to end with the device frame two (702), and the device frame three (703) is connected end to end with the device frame four (704).

7. The dust filtration test device for a vehicle air filter according to claim 6, characterized in that: One end of the connection frame (10) is provided with a guide groove that cooperates with the guide slide bar (5), and the connection frame (10) is slidably connected to the outer side of the guide slide bar (5) through the guide groove.

8. The dust filtration test device for a vehicle air filter according to claim 7, characterized in that: The equipment frame three (703) and the equipment frame four (704) are both fixed by support rods correspondingly installed on both sides of the top of the load-bearing support plate (200).

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