Testing device

Abstract

The utility model relates to the field of test tools for exhaust brake valves, in particular to a test device, which comprises a movable mounting table, a first tool and a control mechanism. The first gas path channel is limited in the first bottom plate, and a plurality of opening parts are formed by the first gas path channel and the surface of the first bottom plate; the control mechanism further comprises a controller, a first control valve, a second control valve and a differential pressure sensor. The differential pressure sensor is located between the first control valve and the second control valve. The first control valve, the second control valve and the differential pressure sensor are electrically connected with the controller. According to the testing device provided by the utility model, the valve body can be detected before the valve body and other parts are assembled into the exhaust brake valve; therefore, the problem that in the prior art, after the exhaust brake valve is detected to have the sealing performance problem of the valve body, the exhaust brake valve is scrapped or returned for maintenance, and consequently the manufacturing efficiency of the exhaust brake valve is low is solved, and the manufacturing efficiency of the exhaust brake valve is higher.

Description

Technical Field

[0001] The utility model relates to the field of testing tooling for exhaust brake valves, in particular to a testing device. Background Art

[0002] In the prior art, there is provided a patent document entitled: A detection device and detection method for an exhaust brake valve, with application number: 202111507115.6; in the patent document, the detection device detects the exhaust brake valve, and the detection means include simulating a high temperature environment and a simulated low temperature environment, or simulating an immersion environment, so that the detection result of the exhaust brake valve through the detection device is more comprehensive.

[0003] However, the above-mentioned prior art only discloses a technical solution of how the detection device simulates the detection environment, but does not disclose how to specifically detect the performance of the exhaust brake valve. In particular, the valve body of the exhaust brake valve (a component of the exhaust brake valve) cannot be detected by the detection device of the prior art.

[0004] When the above-mentioned prior art is actually applied, if it is detected that the sealing performance of the valve body of the exhaust brake valve is unqualified, then the detected exhaust brake valve needs to be reworked and repaired, which reduces the manufacturing efficiency of the exhaust brake valve.

[0005] Therefore, before the valve body is assembled with other parts into an exhaust brake valve, how to use a testing device to independently test the valve body, thereby improving the manufacturing efficiency of the exhaust brake valve, becomes a technical problem to be solved. Utility Model Content

[0006] In order to solve the technical problem in the prior art of how to use a testing device to independently test the valve body before the valve body and other parts are assembled into an exhaust brake valve, thereby improving the manufacturing efficiency of the exhaust brake valve, the utility model provides a testing device.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] According to one aspect of the utility model, there is provided a testing device, comprising a movable mounting platform, a first tooling and a control mechanism;

[0009] The first tooling and the control mechanism are respectively arranged on the mounting platform;

[0010] The first tooling is provided with a first bottom plate, a first gas path channel, a first sealing component, a first vertical positioning component and a first horizontal positioning component, the first sealing component, the first vertical positioning component and the first horizontal positioning component are respectively arranged on the first bottom plate, the first gas path channel is restricted inside the first bottom plate, and the first gas path channel and the surface of the first bottom plate form a plurality of openings, wherein two of the openings are respectively a first opening and a second opening, the first opening and the second opening are respectively provided with the first sealing component, and any one of the first sealing components is respectively located below the bottom of the first vertical positioning component;

[0011] The control mechanism is provided with an air supply channel, wherein the air supply channel is communicated with the first air path channel.

[0012] The control mechanism also includes a controller, a first control valve, a second control valve and a differential pressure sensor;

[0013] The differential pressure sensor is located between the first control valve and the second control valve, wherein the valve cavity of the first control valve and the valve cavity of the second control valve are respectively a part of the air supply passage, and the probe part of the differential pressure sensor is located in the air supply passage, and the probe part is located between the first control valve and the first port;

[0014] The first control valve, the second control valve and the differential pressure sensor are electrically connected to the controller respectively.

[0015] Furthermore, the control mechanism also includes a flow meter;

[0016] The flow meter is electrically connected to the controller;

[0017] The flow chamber of the flow meter is a part of the air supply passage, and the valve chamber of the second control valve is located between the valve chamber of the first control valve and the flow chamber.

[0018] Furthermore, the control mechanism also includes a pressure regulating valve;

[0019] The pressure regulating valve is electrically connected to the controller;

[0020] The valve cavity of the pressure regulating valve is a part of the air supply passage, and the valve cavity of the first control valve is located between the valve cavity of the pressure regulating valve and the valve cavity of the second control valve.

[0021] Furthermore, the first sealing component is specifically a sealing ring;

[0022] The first vertical positioning component is specifically a first cylinder, wherein a push rod is provided on the movable part of the first cylinder;

[0023] The first horizontal positioning component is specifically a first positioning block and a second positioning block, the distance between the first positioning block and the second positioning block is configured as a preset distance, the first mouth and the second mouth are respectively located on the first bottom plate between the first positioning block and the second positioning block, and the movable path of the push rod is extended between the first positioning block and the second positioning block.

[0024] Further, a second tooling is included;

[0025] The second tool is arranged on the mounting table;

[0026] The second tooling is provided with a second base plate, a second load mechanism, a dynamic torque sensor, a transmission mechanism and a second horizontal positioning mechanism, wherein the second load mechanism, the dynamic torque sensor, the transmission mechanism and the second horizontal positioning mechanism are respectively arranged on the second base plate, wherein the input end of the second load mechanism is coaxially connected with the output end of the dynamic torque sensor, the input end of the dynamic torque sensor is coaxially connected with the output end of the transmission mechanism, the second horizontal positioning mechanism has a second fixed part and a second movable part, the movable direction of the second movable part relative to the second fixed part is limited to the axial direction of the second load mechanism, and the transmission mechanism is located between the second movable part and the dynamic torque sensor;

[0027] The second load mechanism and the dynamic torque sensor are electrically connected to the controller respectively.

[0028] Furthermore, the second load mechanism is specifically a second magnetic powder motor;

[0029] The dynamic torque sensor is specifically a speed torque sensor;

[0030] The transmission mechanism is specifically a second gear set;

[0031] The second horizontal positioning mechanism is specifically a second cylinder, wherein a second pressing plate is provided on the movable portion of the second cylinder, the second pressing plate is perpendicular to the axis of the second load mechanism, and the air supply channel is connected to the second cylinder.

[0032] Further, a third tooling is included;

[0033] The third tool is arranged on the mounting table;

[0034] The third fixture is provided with a third base plate, a third load mechanism, an angle sensor and a third horizontal positioning mechanism, wherein the third load mechanism, the angle sensor and the third horizontal positioning mechanism are respectively arranged on the third base plate, wherein the input end of the third load mechanism is coaxially connected with the output end of the angle sensor, the third horizontal positioning mechanism is provided with a third fixed part and a third movable part, the movable direction of the third movable part relative to the third fixed part is limited to the axial direction of the third load mechanism, and the angle sensor is located between the third load mechanism and the third horizontal positioning mechanism;

[0035] The third load mechanism and the angle sensor are electrically connected to the controller respectively.

[0036] Furthermore, the third load mechanism is specifically a third magnetic powder motor;

[0037] The angle sensor is specifically an angle encoder;

[0038] The third horizontal positioning mechanism is specifically a third cylinder, wherein a third pressing plate is provided on the movable part of the third cylinder, the third pressing plate is perpendicular to the axis of the third load mechanism, and the air supply channel is connected to the third cylinder.

[0039] Further, the mounting platform has a front side and a back side;

[0040] The control mechanism further includes a display and a plurality of indicator lights, the display and the plurality of indicator lights are respectively arranged on the front surface, and the display and the plurality of indicator lights are respectively electrically connected to the controller;

[0041] The control mechanism further includes a light curtain, which is arranged on the front side and is electrically connected to the controller.

[0042] The above technical solution has the following advantages or beneficial effects:

[0043] The testing device provided by the utility model can detect the valve body before the valve body and other parts are assembled into an exhaust brake valve, thereby avoiding the problem of the prior art that "after the exhaust brake valve itself is detected to have a sealing problem of the valve body, the exhaust brake valve is scrapped or returned for repair, resulting in low efficiency in manufacturing the exhaust brake valve", thereby making the manufacturing efficiency of the exhaust brake valve higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 A schematic diagram of the structure of the test device provided in Example 1 of the utility model;

[0045] Figure 2A schematic diagram of the structure of the first tool provided in Example 1 of the utility model;

[0046] Figure 3 A schematic diagram of the structure of the first tool provided in Example 1 of the utility model;

[0047] Figure 4 A schematic diagram of the structure of the gas path provided in Example 1 of the utility model;

[0048] Figure 5 A schematic diagram of the structure of one of the test objects provided in Example 1 of the utility model;

[0049] Figure 6 A schematic diagram of the structure of the second tooling provided in Example 1 of the utility model;

[0050] Figure 7 A schematic diagram of the structure of the second tooling provided in Example 1 of the utility model;

[0051] Figure 8 A schematic diagram of the structure of the third tool provided in Example 1 of the utility model;

[0052] Fig. 9 A schematic diagram of the structure of the third tool provided in Example 1 of the utility model;

[0053] Fig.10 This is an electrical connection diagram of the test device provided in Example 1 of the utility model. DETAILED DESCRIPTION

[0054] Embodiment 1:

[0055] In this embodiment, a testing device is provided to solve the technical problem in the prior art of how to use the testing device to independently test the valve body before the valve body is assembled with other components into an exhaust brake valve, thereby improving the manufacturing efficiency of the exhaust brake valve.

[0056] For details, see Figures 1 to 4 , the testing device in this embodiment includes a movable mounting table 1, a first tool 2 and a control mechanism 3 having a controller;

[0057] The first tooling 2 and the control mechanism 3 are respectively arranged on the mounting platform 1;

[0058] The first tooling 2 is provided with a first bottom plate 201, a first gas path channel 202, a first sealing component 203, a first vertical positioning component 204 and a first horizontal positioning component 205. The first sealing component 203, the first vertical positioning component 204 and the first horizontal positioning component 205 are respectively arranged on the first bottom plate 201. The first gas path channel 202 is restricted inside the first bottom plate 201, and the first gas path channel 202 and the surface of the first bottom plate 201 form a plurality of openings, wherein two openings are respectively a first opening 211 and a second opening 212. The first opening 211 and the second opening 212 are respectively provided with a first sealing component 203. Any one of the first sealing components 203 is respectively located below the bottom of the first vertical positioning component 204;

[0059] The control mechanism 3 is provided with an air supply channel, wherein the air supply channel is communicated with the first air path channel 202 .

[0060] The control mechanism 3 further includes a controller 301, a first control valve 302, a second control valve 303 and a differential pressure sensor 304;

[0061] The differential pressure sensor 304 is located between the first control valve 302 and the second control valve 303, wherein the valve cavity of the first control valve 302 and the valve cavity of the second control valve 303 are respectively a part of the air supply channel, and the probe part of the differential pressure sensor 304 is located in the air supply channel, and the probe part is located between the first control valve 302 and the first port 211;

[0062] The first control valve 302 , the second control valve 303 and the differential pressure sensor 304 are electrically connected to the controller 301 , respectively.

[0063] It should be understood that the test device in this embodiment, see Figure 6 to Figure 9 , also includes the second tooling 4 and the third tooling 5 proposed in the following content, wherein the test device with the first tooling 2 is used to detect the valve body (components) of the exhaust brake valve, the test device with the second tooling 4 is used to detect the motor (components) of the exhaust brake valve, and the test device with the third tooling 5 is used to test the dynamic test of the exhaust brake valve.

[0064] In the actual use of the testing device of this embodiment, before the valve body is assembled with other components (such as a circuit board, a motor, etc.) into an exhaust brake valve, the valve body is independently set on the first tooling 2, and the sealing and flow rate of the valve body are tested using the testing device of this embodiment.

[0065] For the specific structure of the valve body, please refer to Figure 5 , wherein the valve body is provided with a first interface 001 and a second interface 002, and a cooling channel connected to the first interface 001 and the second interface 002 is also provided in the valve body; see Figure 2 or Figure 3 When the valve body is arranged on the first fixture 2 of the test device of this embodiment, the first interface 001 and the second interface 002 of the valve body are respectively arranged downward along the vertical direction and respectively cover one of the first sealing components 203. At this time, a vertical downward force is applied to the current valve body by the first vertical positioning component 204, and the displacement of the valve body in the horizontal direction is limited by the first horizontal positioning component 205, thereby forming the positioning of the valve body on the first fixture 2; in addition, see Figure 2 or Figure 3 When the valve body is positioned on the first tooling 2, one of the first sealing components 203 seals the first interface 001 of the valve body and the first mouth 211 of the first bottom plate 201 respectively, and the other first sealing component 203 seals the second interface 002 of the valve body and the second mouth 212 of the first bottom plate 201 respectively, so that when the medium flows through the first mouth 211, the first interface 001, the cooling channel, the second interface 002 and the second mouth 212, the medium is blocked by the two first sealing components 203 and cannot overflow from the gap between the first mouth 211 and the first interface 001, and cannot overflow from the gap between the second mouth 212 and the second interface 002.

[0066] After the valve body is positioned on the first fixture 2, the control mechanism 3 delivers the medium (compressed gas) to the cooling channel of the valve body through the air supply channel; it should be understood that, see Figure 4 or Fig.10 The controller 301 of the control mechanism 3 is used to control the conduction and cutoff of the first control valve 302 and the second control valve 303, thereby forming the conduction and cutoff of the air supply channel, thereby achieving the effect of conveying the medium of the cooling channel.

[0067] For the inspection of valve body, generally there are two inspection targets:

[0068] First goal: Check the sealing of the valve body at the cooling channel;

[0069] Second goal: detect the flow rate of the medium (gas) flowing through the cooling channel.

[0070] In this embodiment, see Figure 4 , the first control valve 302 is arranged close to the gas source, and the second control valve 303 is arranged far away from the gas source. The controller 301 of the control mechanism 3 sends a conduction signal to the first control valve 302 and the second control valve 303 respectively. After the first control valve 302 and the second control valve 303 receive the conduction signal respectively, a passage is formed from the gas source to the gas supply channel, so that the compressed gas in the gas source can flow through the first control valve 302, the valve body and the second control valve 303 in sequence;

[0071] When testing the first target, the controller 301 sends a cutoff signal to the first control valve 302 and the second control valve 303, or the controller 301 cancels the on signal to the first control valve 302 and the second control valve 303, at which time, compressed gas is accumulated in the air supply channel between the first control valve 302 and the second control valve 303;

[0072] Then, see Figure 4 or Fig.10 The pressure difference of the compressed gas at both ends is measured by the pressure difference sensor 304, and the pressure difference information is fed back to the controller 301 in the form of an electrical signal; wherein the pressure difference sensor 304 can be arranged between the first control valve 302 and the first port 211 (see Figure 3 ), or the differential pressure sensor 304 may be disposed between the second port 212 and the second control valve 303;

[0073] When the differential pressure sensor 304 is disposed between the first control valve 302 and the first port 211, one side of the diaphragm of the differential pressure sensor 304 faces the first control valve 302, and the other side of the diaphragm faces the valve body; if the valve body sealing performance at the cooling channel is poor, there must be at least one leakage portion (such as a sand hole on the valve body) between the diaphragm and the second control valve 303 that can leak the medium. In this case, the diaphragm of the differential pressure sensor 304 must be deformed in the direction from the first control valve 302 to the second control valve 303; on the contrary, if the valve body sealing performance at the cooling channel is good, there is no leakage portion between the diaphragm and the second control valve 303.

[0074] In other words, the staff can read the specific value of the differential pressure sensor 304 to determine whether there is a leak or not.

[0075] When the differential pressure sensor 304 is disposed between the second port 212 and the second control valve 303, one side of the diaphragm of the differential pressure sensor 304 faces the valve body, and the other side of the diaphragm faces the second control valve 303; if the valve body sealing performance at the cooling channel is poor, there must be at least one leakage portion (such as a sand hole on the valve body) between the first control valve 302 and the diaphragm that can leak the medium. In this case, the diaphragm of the differential pressure sensor 304 must be deformed in the direction from the second control valve 303 to the first control valve 302; on the contrary, if the valve body sealing performance at the cooling channel is good, there is no leakage portion between the first control valve 302 and the second control valve 303;

[0076] In other words, the staff can read the specific vertical position of the differential pressure sensor 304 to determine whether there is a leak or not.

[0077] It should be understood that the aforementioned gas source may be an air compressor, an air pump, or a pipeline for conveying compressed gas, etc.

[0078] It should be understood that see Figure 1 or Fig.10 The control mechanism 3 also includes a display 305, which is used to display the information transmitted to the controller 301, so that the aforementioned pressure difference information can be displayed to the staff through the display 305.

[0079] It should be understood that the structure and working principle of the differential pressure sensor 304 are common knowledge known to those skilled in the art and will not be described in detail here.

[0080] The test device in this embodiment can be applied to the following two scenarios in actual application:

[0081] Scenario 1:

[0082] On a production line for independently manufacturing valve bodies, the testing device in this embodiment is arranged for continuous and single testing of large quantities of valve bodies. If the test is qualified, the qualified valve bodies can be transferred to a production line for assembling exhaust brake valves. On the contrary, if the test is unqualified, the unqualified valve bodies can be repaired or returned to the furnace for remanufacturing.

[0083] Scenario 2:

[0084] On the production line for assembling exhaust brake valves, the testing device of the present embodiment is provided to test the valve body before assembling the valve body and other parts. If the test is qualified, the qualified valve body can be assembled with the other parts. Otherwise, the valve body that fails the test can be repaired on the spot or transported to the valve body production line for repair or remanufacturing. It should be understood that in the case of scenario two, in the following content, after the qualified valve body is assembled with other parts, other items can be tested by the testing device of the present embodiment to avoid the transportation of the valve body and other parts. For details, please see the following content.

[0085] The detection device in the prior art (a detection device and detection method for an exhaust brake valve, patent document with application number: 202111507115.6) detects the exhaust brake valve itself, and is unable to detect the valve body separately. This results in the prior art being unable to detect the valve body before the valve body is assembled into an exhaust brake valve with other components. Thus, after the exhaust brake valve itself is detected to have a valve body sealing problem, the exhaust brake valve is scrapped or returned for repair, resulting in low efficiency in manufacturing the exhaust brake valve.

[0086] The testing device in this embodiment can detect the valve body before the valve body and other parts are assembled into the exhaust brake valve, thereby avoiding the problem of the prior art that "after the exhaust brake valve itself is detected to have a valve body sealing problem, the exhaust brake valve is scrapped or returned for repair, resulting in low efficiency in manufacturing the exhaust brake valve", making the manufacturing efficiency of the exhaust brake valve higher.

[0087] For further information, see Figure 4 or Fig.10 ,In the test device of this embodiment, the control mechanism 3 also includes a flow meter 306;

[0088] The flow meter 306 is electrically connected to the controller 301;

[0089] The flow chamber of the flow meter 306 is a part of the air supply channel, and the valve chamber of the second control valve 303 is located between the valve chamber of the first control valve 302 and the flow chamber.

[0090] When testing the aforementioned second target, the controller 301 sends out a conduction signal, so that after receiving the conduction signal, the valve cavity of the first control valve 302 and the valve cavity of the second control valve 303 respectively form a conduction state, and then the compressed gas from the gas source can pass through the first control valve 302, the valve body, and the second control valve 303 in sequence to reach and flow through the flow meter 306;

[0091] The structure and measurement principle of the flow meter 306 are common knowledge known to those skilled in the art and will not be described in detail here;

[0092] The flow meter 306 generates a flow electrical signal after obtaining the flow of the compressed gas, and feeds the flow electrical signal back to the controller 301 ; the feedback value of the flow electrical signal can be displayed on the display 305 .

[0093] It should be understood that the testing device including the flow meter 306 is also applicable to the aforementioned scenarios one and two; wherein, in scenario two, the flow of the valve body is also tested by the flow meter 306 before the valve body and other components are assembled into an exhaust brake valve, and after the flow test is completed, the staff can assemble the qualified valve body with other components into an exhaust brake valve, and then perform subsequent testing on the assembled exhaust brake valve through the scheme described below.

[0094] For further information, see Figure 4 or Fig.10 , the test device in this embodiment, the control mechanism 3 also includes a pressure regulating valve 307;

[0095] The pressure regulating valve 307 is electrically connected to the controller 301;

[0096] The valve cavity of the pressure regulating valve 307 is a part of the air supply passage, and the valve cavity of the first control valve 302 is located between the valve cavity of the pressure regulating valve 307 and the valve cavity of the second control valve 303 .

[0097] The pressure regulating valve 307 is located between the gas source and the first control valve 302, and the compressed gas sent by the gas source first flows through the pressure regulating valve 307 and then flows through the first control valve 302; since the pressure regulating valve 307 has the function of regulating the pressure of the compressed gas, the pressure of the compressed gas flowing through the first control valve 302 can be limited by the pressure regulating valve 307; for example, in the process of testing the sealing performance of the gas path between the first control valve 302 and the second control valve 303 (the actual test object is the air tightness of the valve body of the exhaust brake valve), the pressure of the compressed gas injected into the first control valve 302 and the second control valve 303 is limited by the pressure regulating valve 307, so that the pressure of the compressed gas between the first control valve 302 and the second control valve 303 meets the pressure required by the sealing performance test; for another example, in the process of testing the flow rate through the valve body of the exhaust brake valve, the pressure of the compressed gas flowing through the valve body of the exhaust brake valve is limited by the pressure regulating valve 307, so that the flow rate can be measured by the aforementioned flow meter 306 when the gas pressure requirement of the flow rate test is met.

[0098] Furthermore, in the test device in this embodiment, the first sealing component 203 is specifically a sealing ring;

[0099] The first vertical positioning member 204 is specifically a first cylinder 221 (see Figure 2 ), wherein a push rod 222 is provided on the movable portion of the first cylinder 221 (see Figure 2 );

[0100] The first horizontal positioning component 205 is specifically a first positioning block and a second positioning block, the distance between the first positioning block and the second positioning block is configured as a preset distance, the first mouth 211 and the second mouth 212 are respectively located on the first bottom plate 201 between the first positioning block and the second positioning block, and the movable path of the top rod 222 is extended between the first positioning block and the second positioning block.

[0101] During the process of the first vertical positioning component 204 positioning the valve body of the exhaust brake valve, the first interface 001 of the valve body covers the first mouth 211 located on the first bottom plate 201, and the second interface 002 of the valve body covers the second mouth 212 located on the first bottom plate 201, wherein a sealing ring is arranged between the first interface 001 and the first mouth 211, and a sealing ring is arranged between the second interface 002 and the second mouth 212. When the first cylinder 221 of the first vertical positioning component 204 drives the push rod 222 so that the push rod 222 presses the valve body, the sealing ring located between the first interface 001 and the first mouth 211 is affected by the pressure between the valve body and the first bottom plate 201, and the gap between the first interface 001 and the first mouth 211 is sealed. Similarly, the sealing ring located between the second interface 002 and the second mouth 212 seals the gap between the second interface 002 and the second mouth 212.

[0102] In the process of horizontally positioning the valve body of the exhaust brake valve by the second horizontal positioning component, by limiting the distance between the first positioning block and the second positioning block to match the preset distance of the valve body, when the valve body is set between the first positioning block and the second positioning block, the valve body is restricted by the first positioning block and the second positioning block and always maintains a vertical state, and then the valve body can be positioned relative to the first bottom plate 201 by the aforementioned first vertical positioning component 204, which is beneficial to reducing the time for positioning the valve body and improving the positioning efficiency of the valve body.

[0103] It should be understood that see Fig.10 , the first vertical positioning component 204 is electrically connected to the controller 301.

[0104] For further information, see Figure 1 , Figure 6 , Figure 7 or Fig.10 , the testing device in this embodiment further includes a second tooling 4;

[0105] The second tooling 4 is arranged on the mounting platform 1;

[0106] The second tooling 4 is provided with a second base plate 401, a second load mechanism 402, a dynamic torque sensor 403, a transmission mechanism 404 and a second horizontal positioning mechanism 405. The second load mechanism 402, the dynamic torque sensor 403, the transmission mechanism 404 and the second horizontal positioning mechanism 405 are respectively arranged on the second base plate 401, wherein the input end of the second load mechanism 402 is coaxially connected with the output end of the dynamic torque sensor 403, the input end of the dynamic torque sensor 403 is coaxially connected with the output end of the transmission mechanism 404, the second horizontal positioning mechanism 405 has a second fixed portion 411 and a second movable portion 412, the movable direction of the second movable portion 412 relative to the second fixed portion 411 is limited to the axial direction of the second load mechanism 402, and the transmission mechanism 404 is located between the second movable portion 412 and the dynamic torque sensor 403;

[0107] The second load mechanism 402 and the dynamic torque sensor 403 are electrically connected to the controller 301 , respectively.

[0108] The valve body of the exhaust brake valve that has passed the test of the first tooling 2 mentioned above, after being assembled with the coil and the rotor assembly, becomes the test object at the second tooling 4.

[0109] The intermediate product is essentially a motor, and the rotor assembly of the intermediate product is coaxially connected to the input end of the dynamic torque sensor 403 through a transmission mechanism 404 .

[0110] Before actually testing the intermediate product, the intermediate product is positioned and fixed relative to the second base plate 401 by the second horizontal positioning mechanism 405; then, the second load mechanism 402 is used to provide a rated load to the intermediate product being tested, wherein a transmission connection is formed between the second load mechanism and the dynamic torque sensor 403, and the dynamic torque sensor 403 is connected to the rotor assembly of the intermediate product through the transmission mechanism 404; the coil of the intermediate product is energized, and driven by the magnetic field of the coil, the rotor assembly drives the rotating shaft of the dynamic torque sensor 403 and the second load mechanism 402 to rotate, and the torque test data of the intermediate product is obtained through the dynamic torque sensor 403.

[0111] The above test data is transmitted to the controller 301 , and the controller 301 calculates the test data and obtains the calculation result.

[0112] Furthermore, in the test device of this embodiment, the second load mechanism 402 is specifically a second magnetic powder motor;

[0113] The dynamic torque sensor 403 is specifically a speed torque sensor;

[0114] The transmission mechanism 404 is specifically a second gear set;

[0115] The second horizontal positioning mechanism 405 is specifically a second cylinder, wherein a second pressing plate 413 is disposed on the movable portion of the second cylinder, the second pressing plate 413 is perpendicular to the axis of the second loading mechanism 402, and the air supply channel is connected to the second cylinder.

[0116] Among them, the input end of the second gear group is coaxially connected to the sublease component of the intermediate product, the output end of the second gear group is coaxially connected to the input end of the speed torque sensor through a coupling, and the output end of the speed torque sensor is coaxially connected to the second magnetic powder motor.

[0117] The structure of the magnetic powder motor (including the second magnetic powder motor here and the third magnetic powder motor described later) is common knowledge known to those skilled in the art and will not be described in detail here.

[0118] The second magnetic powder motor mainly works on the principle of electromagnetic induction generated by the magnetic field, and generates torque through the interaction between the magnet and the coil. This torque forms a load for the intermediate product. By changing the torque of the second magnetic powder motor, the intermediate product can obtain loads of different sizes.

[0119] The dynamic torque sensor 403 is specifically set as a speed torque sensor, which can obtain torque test data of the intermediate product on the one hand, and speed test data of the intermediate product on the other hand.

[0120] The second horizontal positioning mechanism 405 is selected as a second cylinder and cooperates with the second pressure plate 413, so that the intermediate product as a whole is clamped between the second pressure plate 413 and the transmission mechanism 404, which facilitates the installation and disassembly of the intermediate product on the second tooling 4; wherein, the air supply channel passes compressed gas into the second cylinder (i.e., the second fixed part 411) to drive the second cylinder to work.

[0121] For further information, see Figure 1 , Figure 8 to Figure 10 , the testing device in this embodiment further includes a third tooling 5;

[0122] The third tool 5 is arranged on the mounting platform 1;

[0123] The third tooling 5 is provided with a third base plate 501, a third load mechanism 502, an angle sensor 503 and a third horizontal positioning mechanism 504, wherein the third load mechanism 502, the angle sensor 503 and the third horizontal positioning mechanism 504 are respectively arranged on the third base plate 501, wherein the input end of the third load mechanism 502 is coaxially connected with the output end of the angle sensor 503, the third horizontal positioning mechanism 504 is provided with a third fixed portion 511 and a third movable portion 512, the movable direction of the third movable portion 512 relative to the third fixed portion 511 is limited to the axial direction of the third load mechanism 502, and the angle sensor 503 is located between the third load mechanism 502 and the third horizontal positioning mechanism 504;

[0124] The third load mechanism 502 and the angle sensor 503 are electrically connected to the controller 301 , respectively.

[0125] Among them, the intermediate product that has passed the test at the aforementioned second station is assembled with other parts to form an exhaust brake valve assembly, and the exhaust brake valve assembly is set on the third tooling 5 as a test object.

[0126] The angle sensor 503 and the third base plate 501 are configured to be detachably connected, the axial ends of the angle sensor 503 are respectively a sensor input end and a sensor output end, the rotor assembly of the exhaust brake valve assembly is connected to the sensor input end through a coupling, and the sensor output end is coaxially connected to the input end of the third load mechanism 502; preferably, the sensor output end is connected to the input end of the third load mechanism 502 through a spline;

[0127] When the exhaust brake valve assembly is powered on and works, the rotor assembly of the exhaust brake valve assembly drives the shaft of the angle sensor 503, and then the shaft of the angle sensor 503 drives the third load mechanism 502. At this time, the angle sensor 503 can obtain test data such as the rotation angle and response time under the load limited by the current third load mechanism 502; the obtained test data is transmitted to the controller 301, and the controller 301 calculates the test data and obtains the calculation results.

[0128] Furthermore, in the test device of this embodiment, the third load mechanism 502 is specifically a third magnetic powder motor;

[0129] The angle sensor 503 is specifically an angle encoder;

[0130] The third horizontal positioning mechanism 504 is specifically a third cylinder, wherein a third pressing plate 513 is provided on the movable part of the third cylinder, the third pressing plate 513 is perpendicular to the axis of the third load mechanism 502, and the air supply channel is connected to the third cylinder.

[0131] The structure and function of the third magnetic powder motor are the same as those of the second magnetic powder motor, and will not be described in detail here.

[0132] The specific structure of the angle encoder is common knowledge known to those skilled in the art and will not be described in detail here.

[0133] The structure and function of the third horizontal positioning mechanism 504 are the same as those of the aforementioned second horizontal positioning mechanism 405 , and are not described in detail here.

[0134] For further information, see Figure 1 or Fig.10 ,In the test device of this embodiment, the mounting platform 1 has a front side and a back side;

[0135] The control mechanism 3 further includes a display 305 and a plurality of indicator lights 306, which are respectively arranged on the front side and are respectively electrically connected to the controller 301;

[0136] The control mechanism 3 further includes a light curtain 307 , which is arranged on the front side and is electrically connected to the controller 301 .

[0137] After receiving the test data respectively sent by the first tooling 2, the second tooling 4 and the third tooling 5, the controller 301 calculates the test data and obtains the calculation results, which are output to the display 305 for the staff to obtain.

[0138] The controller 301 may first use a single chip microcomputer, a PLC, or an industrial computer in the prior art, wherein the connection structure between the controller 301 and the display 305 is common knowledge known to those skilled in the art and will not be described in detail here.

[0139] Among the multiple indicator lights 306, some of the indicator lights 306 can be configured as power indicator lights 306, and another part of the indicator lights 306 can be configured as working status indicator lights 306. For example, the first indicator light 306 is configured as the power indicator light 306. When the test device is powered on as a whole, the controller 301 sends a control signal to turn on the first indicator light 306, so that the first indicator light 306 is lit after being powered on, which is used to remind the staff that the current test device has been powered on; for example, the second indicator light 306 is matched with the first tooling 2, the third indicator light 306 is matched with the second tooling 4, and the fourth indicator light 306 is matched with the third tooling 5. When the first tooling 2 is working, the controller 301 sends a control signal to turn on the second indicator light 306, so that the second indicator light 306 is lit after being powered on. Similarly, when the second tooling 4 or the third tooling 5 is working, the controller 301 sends a control signal to turn on the third indicator light 306 or the fourth indicator light 306, so that the third indicator light 306 is lit or the fourth indicator light 306 is lit.

[0140] The light curtain 307 is electrically connected to the controller 301, wherein the light curtain 307 is a safety protection mechanism. During the operation of the test device, the light curtain 307 is activated, and the worker is isolated from the first workstation, the second workstation or the third workstation by the light curtain 307. If the worker's limbs or foreign objects pass through the light curtain 307, the light curtain 307 will send a feedback signal to the controller 301, and the controller 301 will stop the current first work, the second work or the third work according to the feedback signal.

[0141] It should be understood that the specific structure and function of the light curtain 307 are common knowledge known to those skilled in the art and will not be described in detail here.

[0142] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structural transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, is also included in the patent protection scope of the present invention.

Claims

1. A testing device, characterized in that It includes a movable mounting platform, a first tooling and a control mechanism; The first tooling and the control mechanism are respectively arranged on the mounting platform; The first tooling is provided with a first bottom plate, a first gas path channel, a first sealing component, a first vertical positioning component and a first horizontal positioning component, the first sealing component, the first vertical positioning component and the first horizontal positioning component are respectively arranged on the first bottom plate, the first gas path channel is restricted inside the first bottom plate, and the first gas path channel and the surface of the first bottom plate form a plurality of openings, wherein two of the openings are respectively a first opening and a second opening, the first opening and the second opening are respectively provided with the first sealing component, and any one of the first sealing components is respectively located below the bottom of the first vertical positioning component; The control mechanism is provided with an air supply channel, wherein the air supply channel is in communication with the first air path channel; The control mechanism also includes a controller, a first control valve, a second control valve and a differential pressure sensor; The differential pressure sensor is located between the first control valve and the second control valve, wherein the valve cavity of the first control valve and the valve cavity of the second control valve are respectively a part of the air supply passage, and the probe part of the differential pressure sensor is located in the air supply passage, and the probe part is located between the first control valve and the first port; The first control valve, the second control valve and the differential pressure sensor are electrically connected to the controller respectively.

2. The testing device according to claim 1, characterized in that: The control mechanism also includes a flow meter; The flow meter is electrically connected to the controller; The flow chamber of the flow meter is a part of the air supply passage, and the valve chamber of the second control valve is located between the valve chamber of the first control valve and the flow chamber.

3. The testing device according to claim 1, characterized in that: The control mechanism also includes a pressure regulating valve; The pressure regulating valve is electrically connected to the controller; The valve cavity of the pressure regulating valve is a part of the air supply passage, and the valve cavity of the first control valve is located between the valve cavity of the pressure regulating valve and the valve cavity of the second control valve.

4. The testing device according to claim 1, characterized in that: The first sealing component is specifically a sealing ring; The first vertical positioning component is specifically a first cylinder, wherein a push rod is provided on the movable part of the first cylinder; The first horizontal positioning component is specifically a first positioning block and a second positioning block, the distance between the first positioning block and the second positioning block is configured as a preset distance, the first mouth and the second mouth are respectively located on the first bottom plate between the first positioning block and the second positioning block, and the movable path of the push rod is extended between the first positioning block and the second positioning block.

5. The testing device according to claim 1, characterized in that: Also included is a second tooling outfit; The second tool is arranged on the mounting table; The second tooling is provided with a second base plate, a second load mechanism, a dynamic torque sensor, a transmission mechanism and a second horizontal positioning mechanism, wherein the second load mechanism, the dynamic torque sensor, the transmission mechanism and the second horizontal positioning mechanism are respectively arranged on the second base plate, wherein the input end of the second load mechanism is coaxially connected with the output end of the dynamic torque sensor, the input end of the dynamic torque sensor is coaxially connected with the output end of the transmission mechanism, the second horizontal positioning mechanism has a second fixed part and a second movable part, the movable direction of the second movable part relative to the second fixed part is limited to the axial direction of the second load mechanism, and the transmission mechanism is located between the second movable part and the dynamic torque sensor; The second load mechanism and the dynamic torque sensor are electrically connected to the controller respectively.

6. The testing device according to claim 5, characterized in that: The second load mechanism is specifically a second magnetic powder motor; The dynamic torque sensor is specifically a speed torque sensor; The transmission mechanism is specifically a second gear set; The second horizontal positioning mechanism is specifically a second cylinder, wherein a second pressing plate is provided on the movable portion of the second cylinder, the second pressing plate is perpendicular to the axis of the second load mechanism, and the air supply channel is connected to the second cylinder.

7. The testing device according to claim 1, characterized in that: Also included is a third tooling outfit; The third tool is arranged on the mounting table; The third fixture is provided with a third base plate, a third load mechanism, an angle sensor and a third horizontal positioning mechanism, wherein the third load mechanism, the angle sensor and the third horizontal positioning mechanism are respectively arranged on the third base plate, wherein the input end of the third load mechanism is coaxially connected with the output end of the angle sensor, the third horizontal positioning mechanism is provided with a third fixed part and a third movable part, the movable direction of the third movable part relative to the third fixed part is limited to the axial direction of the third load mechanism, and the angle sensor is located between the third load mechanism and the third horizontal positioning mechanism; The third load mechanism and the angle sensor are electrically connected to the controller respectively.

8. The testing device according to claim 7, characterized in that: The third load mechanism is specifically a third magnetic powder motor; The angle sensor is specifically an angle encoder; The third horizontal positioning mechanism is specifically a third cylinder, wherein a third pressing plate is provided on the movable part of the third cylinder, the third pressing plate is perpendicular to the axis of the third load mechanism, and the air supply channel is connected to the third cylinder.

9. The testing device according to claim 1, characterized in that: The mounting platform has a front side and a back side; The control mechanism further includes a display and a plurality of indicator lights, the display and the plurality of indicator lights are respectively arranged on the front surface, and the display and the plurality of indicator lights are respectively electrically connected to the controller; The control mechanism further includes a light curtain, which is arranged on the front side and is electrically connected to the controller.

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