Exhaust gas regulating valve end face roughness detection device
By designing the end surface roughness detection device of the exhaust gas regulating valve, the quality problems caused by the failure to detect the exhaust gas regulating valve before assembly are solved, and high-quality assembly of the automobile turbocharger is achieved, reducing maintenance costs.
Patent Information
- Application Number
- CN202521526622.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-22
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2035-07-22
AI Technical Summary
The exhaust gas regulating valve used for automotive turbochargers is not tested for end surface roughness before assembly, resulting in quality problems after assembly, increasing the cost of automobile recall and maintenance.
A waste gas regulating valve end surface roughness detection device is designed, including an operating table, waste gas regulating valve detection cylinder, pressure sensor, down pressure head, down pressure cylinder, pressure value display, air pump and switch. The sealing surface roughness of the waste gas regulating valve is judged by the detection cylinder flow display to ensure the accuracy and safety of the detection.
The end surface roughness of the exhaust gas regulating valve is inspected before assembly, which improves factory quality, avoids car recalls, and reduces subsequent maintenance costs.
Smart Images
Figure CN223307525U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of detection equipment for automobile parts, and particularly relates to a device for detecting the roughness of the end surface of an exhaust gas regulating valve used in an automobile turbocharger. Background Art
[0002] At present, the exhaust gas regulating valve used in automobile turbochargers is not tested for end surface roughness before being assembled to the automobile turbine, resulting in quality problems after assembly, causing the vehicle to be recalled and greatly increasing subsequent maintenance costs. Utility Model Content
[0003] The purpose of the utility model is to solve the problem that the exhaust gas regulating valve used in the current automobile turbocharger is not tested for end surface roughness before being assembled to the automobile turbocharger, resulting in quality problems after assembly, causing automobile recalls and greatly increasing subsequent maintenance costs. The utility model provides an exhaust gas regulating valve end surface roughness detection device.
[0004] A device for detecting the roughness of the end face of an exhaust gas regulating valve comprises an operating table, an exhaust gas regulating valve detection tube, a pressure sensor, a down-pressure head, a down-pressure cylinder, a pressure value display, an air pump, a detection tube flow display and a switch; the exhaust gas regulating valve detection tube is installed on the operating table, the down-pressure cylinder, the pressure value display and the detection tube flow display are arranged on a bracket of the operating table, the down-pressure head is located above the exhaust gas regulating valve detection tube, the down-pressure head is installed at the bottom of the pressure sensor, and the pressure sensor is installed at the bottom of the telescopic rod of the down-pressure cylinder; the air outlet of the air pump is connected to the air inlet of the exhaust gas regulating valve detection tube, the air outlet of the air pump is connected to the down-pressure cylinder, the detection tube flow display is connected to the exhaust gas regulating valve detection tube through a pipeline, the pressure sensor is connected to the pressure value display, and the switch is arranged on the operating table, and the switch controls the opening of the air pump.
[0005] The top surface of the exhaust gas regulating valve detection cylinder is a smooth surface, and the air pump is arranged on the bottom surface or the back surface of the operating table.
[0006] The switch is a double-lock switch. The air pump can only be started and shut down when both hands are pressed at the same time, thus avoiding accidental touch and injury to the hands, and ensuring safe operation.
[0007] A lighting lamp is installed on the top of the bracket for lighting.
[0008] The working process of this utility model:
[0009] First, place the exhaust gas control valve to be tested on the exhaust gas control valve test tube, with the valve's sealing surface in contact with the top surface of the test tube. The switch is turned on, and the air pump operates, driving the telescopic rod of the downward pressure cylinder downward. This in turn drives the pressure sensor and downward pressure head downward, pressing the valve's sealing surface against the top surface of the test tube. Simultaneously, the test tube is inflated. The pressure indicator displays the pressure applied by the downward pressure cylinder to the exhaust gas control valve. When the predetermined pressure value is reached, the downward pressure cylinder stops pressing. At this point, the flow meter on the test tube displays the gas leakage value of the exhaust gas control valve test tube, indicating the degree of sealing between the valve's sealing surface and the top surface of the test tube, thereby determining the roughness of the valve's sealing surface. If the flow meter value on the test tube is less than or equal to the predetermined value, the valve is deemed acceptable; otherwise, it is deemed unacceptable. The switch is turned off, and the downward pressure cylinder drives the pressure sensor and downward pressure head upward, deflating the test tube. The tested exhaust gas control valve is then removed.
[0010] Beneficial effects of the utility model:
[0011] For exhaust gas control valves used in automotive turbochargers, the end surface roughness is tested before being assembled to the vehicle turbine, which improves factory quality, avoids vehicle recalls after assembly, and greatly reduces subsequent maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the utility model;
[0013] Figure 2 This is a first partial perspective schematic diagram of an embodiment of the utility model;
[0014] Figure 3 It is a second partial perspective schematic diagram of an embodiment of the utility model;
[0015] Figure 4 It is a three-dimensional schematic diagram of the exhaust gas regulating valve. DETAILED DESCRIPTION
[0016] like Figure 1 、 Figure 2 and Figure 3As shown, a device for detecting the roughness of the end face of an exhaust gas regulating valve includes an operating table 1, an exhaust gas regulating valve detection tube 2, a pressure sensor 3, a down-pressure head 4, a down-pressure cylinder 5, a pressure value display 6, an air pump, a detection tube flow display 7 and a switch 8; the exhaust gas regulating valve detection tube 2 is installed on the operating table 1, the down-pressure cylinder 5, the pressure value display 6 and the detection tube flow display 7 are arranged on the bracket 9 of the operating table 1, the down-pressure head 4 is located above the exhaust gas regulating valve detection tube 2, the down-pressure head 4 is installed at the bottom of the pressure sensor 3, and the pressure sensor 3 is installed at the bottom of the telescopic rod of the down-pressure cylinder 5; the air outlet of the air pump is connected to the air inlet of the exhaust gas regulating valve detection tube 2, the air outlet of the air pump is connected to the down-pressure cylinder 5, the detection tube flow display 7 is connected to the exhaust gas regulating valve detection tube 2 through a pipeline, the pressure sensor 3 is connected to the pressure value display 6, and the switch 8 is arranged on the operating table 1, and the switch 8 controls the opening of the air pump.
[0017] The air pump is arranged on the bottom surface or the back surface of the operating table 1, but is not shown in the figure in this embodiment.
[0018] The switch 8 is a double-lock switch. The air pump can be started and closed only when both hands are pressed at the same time. This avoids accidental touch and injury to the hands, ensuring safe operation.
[0019] A lighting lamp 10 is installed on the top of the bracket 9 for lighting.
[0020] The working process of this embodiment:
[0021] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, first place the exhaust gas regulating valve A to be tested on the exhaust gas regulating valve detection cylinder 2, and align the sealing surface B of the exhaust gas regulating valve A with the top surface of the exhaust gas regulating valve detection cylinder 2. Start the switch 8, the air pump works, and drives the telescopic rod of the downward pressure cylinder 5 downward, thereby driving the pressure sensor 3 and the downward pressure head 4 downward, pressing the sealing surface B of the exhaust gas regulating valve A with the top surface of the exhaust gas regulating valve detection cylinder 2. At the same time, the exhaust gas regulating valve detection cylinder 2 is inflated; the pressure value display 6 displays the pressure value of the downward pressure cylinder 5 on the exhaust gas regulating valve A. When the predetermined pressure value is reached, the downward pressure cylinder 5 stops. Pressure is applied. At this time, the detection tube flow display 7 displays the gas leakage value of the exhaust gas regulating valve detection tube 2, that is, it displays the sealing degree between the sealing surface B of the exhaust gas regulating valve A and the top surface of the exhaust gas regulating valve detection tube 2, and then determines the roughness of the sealing surface B of the exhaust gas regulating valve A. When the value of the detection tube flow display 7 is less than or equal to the predetermined value, it is determined that the roughness of the exhaust gas regulating valve A is qualified, otherwise, it is determined to be unqualified; close the switch 8, and the downward pressure cylinder 5 drives the pressure sensor 3 and the downward pressure head 4 upward, the exhaust gas regulating valve detection tube 2 is deflated, and the exhaust gas regulating valve A after detection is taken out.
Claims
1. A device for detecting the roughness of the end surface of an exhaust gas regulating valve, characterized in that: The invention comprises an operating table (1), an exhaust gas regulating valve detection tube (2), a pressure sensor (3), a pressure head (4), a pressure cylinder (5), a pressure value display (6), an air pump, a detection tube flow display (7) and a switch (8); the exhaust gas regulating valve detection tube (2) is installed on the operating table (1), the pressure cylinder (5), the pressure value display (6) and the detection tube flow display (7) are arranged on a bracket (9) of the operating table (1), the pressure head (4) is located above the exhaust gas regulating valve detection tube (2), and the pressure head (4) is installed at the bottom of the pressure sensor (3). The pressure sensor (3) is installed at the bottom of the telescopic rod of the downward pressure cylinder (5); the air outlet of the air pump is connected to the air inlet of the exhaust gas regulating valve detection cylinder (2), the air outlet of the air pump is connected to the downward pressure cylinder (5), the detection cylinder flow display (7) is connected to the exhaust gas regulating valve detection cylinder (2) through a pipeline, the pressure sensor (3) is connected to the pressure value display (6), the switch (8) is set on the operating table (1), and the switch (8) controls the opening of the air pump; the top surface of the exhaust gas regulating valve detection cylinder (2) is a smooth surface, and the air pump is set on the bottom surface or back surface of the operating table (1).
2. The exhaust gas regulating valve end surface roughness detection device according to claim 1, characterized in that: The switch (8) is a double-lock switch.
3. The exhaust gas regulating valve end surface roughness detection device according to claim 1, characterized in that: A lighting lamp (10) is installed on the top of the bracket.