Detection equipment for steering pump
By integrating the detection module and simulating the vehicle hydraulic system environment in the steering pump detection equipment, the connection method is simplified, the complexity problem of existing steering pump detection equipment is solved, and efficient and accurate performance detection is achieved.
Patent Information
- Application Number
- CN202422855934.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-21
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-11-21
AI Technical Summary
The connections between the various detection devices in existing steering pump detection equipment are complex, resulting in low detection efficiency and bringing difficulties to the development of passenger cars.
A steering pump testing device is designed. A testing module is installed on the oil outlet pipe between the output end of the steering pump and the oil tank to simplify the connection method. Pressure, flow, noise and temperature detection devices are integrated. A test bench is used to simulate the vehicle hydraulic steering system environment and the test results are displayed in real time.
It simplifies the connection of the detection device, improves the detection efficiency, ensures the accuracy and stability of the detection results, and adapts to performance testing under different environmental conditions.
Smart Images
Figure CN223330759U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of steering pump detection, and in particular to a steering pump detection device. Background Art
[0002] Most domestic passenger car steering systems are hydraulically powered, using high-pressure oil pumped by a steering pump to push the rack. As a crucial component of the steering system, the performance of the steering pump is directly related to the vehicle's performance.
[0003] Therefore, it is essential to test the performance of the steering pump before it leaves the factory. However, in the current steering pump testing equipment, the connections between the various testing devices are complex and the testing efficiency is low, which brings difficulties to the development of domestic passenger cars. Utility Model Content
[0004] In order to solve the above technical problems, the present application provides a steering pump detection device for simplifying the connection method while improving the detection efficiency.
[0005] According to some embodiments, the present application provides a steering pump detection device, which includes:
[0006] Motor;
[0007] A steering pump connected to the motor, the motor being used to drive the steering pump to work;
[0008] an oil pot, the oil pot being vertically positioned higher than the steering pump, and an oil inlet pipe being connected between the oil pot and an input end of the steering pump;
[0009] A detection module is provided on an oil outlet pipe, wherein the oil outlet pipe connects an output end of the steering pump and the oil tank, and the detection module is used to detect performance parameters of the steering pump.
[0010] In some embodiments of the present application, the detection module includes a pressure detection device and a flow detection device.
[0011] In some embodiments of the present application, the steering pump detection device further includes a throttle valve and a valve block, wherein the valve block is mounted on the oil outlet pipe, an inner cavity of the valve block is communicated with the oil outlet pipe, and the throttle valve is mounted on and communicated with the valve block, and the throttle valve is used to adjust the flow rate of oil in the valve block;
[0012] The pressure detection device and the flow detection device are both installed on the valve block.
[0013] In some embodiments of the present application, the detection equipment of the steering pump further includes a noise detection device, and the noise detection device is installed in the axial direction of the steering pump.
[0014] In some embodiments of the present application, the detection device of the steering pump further includes a first bracket, which is fixedly mounted on the valve block, and the first bracket is used to support the noise detection device.
[0015] In some embodiments of the present application, the noise detection device is a sound level meter, the probe of the sound level meter is installed in the axial direction of the steering pump, and the distance between the end of the probe close to the steering pump and the steering pump is between 149.5 mm and 150.5 mm.
[0016] In some embodiments of the present application, the steering pump detection device further includes a temperature detection device and a second bracket, the second bracket being used to fix the temperature detection device, the temperature detection device being disposed in the oil pot, and the temperature detection device being used to detect the temperature of the oil in the oil pot;
[0017] The first end of the second bracket is connected to the temperature detection device, and the second end of the second bracket is fixedly mounted on the outer wall of the oil pot.
[0018] In some embodiments of the present application, the detection equipment of the steering pump further includes a stand, and the motor, the steering pump, the oil tank and the detection module are all installed on the stand.
[0019] In some embodiments of the present application, the detection device of the steering pump further includes a display screen, which is disposed on the stand and electrically connected to the detection module, and is used to display the performance parameters detected by the detection module.
[0020] In some embodiments of the present application, a accommodating cavity is provided on the stand, the motor, the steering pump, the oil tank and the detection module are all arranged in the accommodating cavity, the display screen is installed on the outside of the stand, and the wires of the detection module are electrically connected to the back side of the display screen through the cavity wall of the accommodating cavity.
[0021] The steering pump detection equipment provided by this application can achieve the following beneficial technical effects:
[0022] In the steering pump detection equipment provided in the present application, the performance parameters of the steering pump are detected by arranging a detection module on the oil outlet pipe between the output end of the steering pump and the oil tank, thereby saving space occupation. The connection between the detection module and the steering pump detection equipment is simple, which simplifies the connection method and improves the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] The accompanying drawings, which are incorporated into and constitute a part of the specification, illustrate embodiments of the present application and, together with the description, are used to explain the principles of the present application. In these drawings, similar reference numerals are used to represent similar elements. The drawings described below are some embodiments of the present application, not all embodiments. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.
[0024] Figure 1 1 is a schematic structural diagram of a steering pump detection device according to an embodiment of the present application;
[0025] Figure 2 yes Figure 1 Schematic diagram of the structure inside the accommodating cavity.
[0026] Reference numerals:
[0027] 100. Platform door;
[0028] 200, steering pump; 210, fixing device;
[0029] 300, oil can; 310, oil inlet pipe; 320, oil outlet pipe;
[0030] 400, detection module; 410, pressure detection device; 420, flow detection device;
[0031] 500, valve block; 510, throttle valve;
[0032] 600. Noise detection device; 610. First bracket;
[0033] 700. Temperature detection device; 710. Second bracket;
[0034] 800, stand; 810, accommodating cavity;
[0035] 900. Display screen; 910. Wire. DETAILED DESCRIPTION
[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other in any way.
[0037] In order to solve the problem of complex connections between various detection devices in the current steering pump, an embodiment of the present application provides a steering pump detection device. By setting a detection module on the oil outlet pipe between the output end of the steering pump and the oil tank, the connection method is simplified and the detection efficiency is improved.
[0038] The following is a detailed description of the steering pump detection equipment provided by the present application in conjunction with the accompanying drawings.
[0039] like Figure 1 and Figure 2 As shown, the steering pump detection device provided in the embodiment of the present application includes a motor, a steering pump 200, an oil tank 300, and a detection module 400. The motor is electrically connected to the steering pump 200 and is used to drive the steering pump 200. In some embodiments, the motor can be an AC asynchronous motor with adjustable speed.
[0040] The oil pot 300 is connected to the input end of the steering pump 200 through the oil inlet pipe 310. In the vertical direction, that is, the z-axis direction in the figure, the position of the oil pot 300 is higher than the steering pump 200. The oil pot 300 is used to simulate the steering oil tank in the vehicle hydraulic steering system.
[0041] The output end of the steering pump 200 is connected to the oil tank 300 via an oil outlet pipe 320 to form a circulation loop. A detection module 400 is installed on the oil outlet pipe 320 to detect the performance parameters of the steering pump 200 .
[0042] The testing process of the above-mentioned steering pump testing equipment is as follows:
[0043] The steering pump 200 to be tested is installed on the fixing device 210 so that it is electrically connected to the motor and connected to the oil inlet pipe 310 and the oil outlet pipe 320. The motor is started to drive the steering pump 200 to work. The oil in the oil tank 300 enters the steering pump 200 from the input end through the oil inlet pipe 310, and is then pumped from the output end of the steering pump 200 to the oil outlet pipe 320. The detection module 400 arranged on the oil outlet pipe 230 detects the performance parameters of the steering pump 200.
[0044] By setting a detection module 400 on the oil outlet pipe 320 between the output end of the steering pump 200 and the oil tank 300, multiple performance parameters of the steering pump 200 are detected, which saves space. The connection between the detection module 400 and the detection equipment of the steering pump 200 is simple, which simplifies the connection method and improves the detection efficiency.
[0045] In some embodiments, as Figure 1 and Figure 2As shown, the detection module 400 includes a pressure detection device 410 and a flow detection device 420. The pressure detection device 410 is used to detect the hydraulic pressure of the oil pumped by the steering pump 200, and the flow detection device 420 is used to detect the flow rate of the oil pumped by the steering pump 200. Both of these detection items are important performance parameters of the steering pump 200. Integrating the pressure detection device 410 and the flow detection device 420 into a single detection module 400 saves space.
[0046] In some embodiments, reference Figure 1 and Figure 2 The steering pump detection equipment also includes a throttle valve 510 and a valve block 500. The valve block 500 is installed on the oil outlet pipe 320. The inner cavity of the valve block 500 is connected to the oil outlet pipe 320. The throttle valve 510 is installed on the valve block 500 and is connected to the valve block 500, and then connected to the oil outlet pipe 320. The throttle valve 510 is used to adjust the pressure of the steering pump detection equipment; the pressure detection device 410 and the flow detection device 420 are both installed on the valve block 500.
[0047] Throttle valve 510 changes the flow rate and pressure of the oil by varying the throttle cross-section or length. When fluid passes through a narrow channel, the cross-sectional area of the channel decreases, increasing the fluid's velocity. According to Bernoulli's principle, as fluid velocity increases, its pressure decreases. Therefore, throttle valve 510 can change the pressure of the steering pump's detection equipment.
[0048] The functions of the valve block 500 and the throttle valve 510 in this embodiment during the detection process are as follows: before performing the performance parameter test of the steering pump, it is necessary to determine whether the steering pump 200 can normally absorb oil. After starting the steering pump 200, adjust the throttle valve 510. If the value measured by the pressure detection device 410 changes, it means that the steering pump 200 can normally absorb oil and build up pressure; if the value measured by the pressure detection device 410 does not change, it means that the steering pump 200 is running but cannot absorb oil.
[0049] By setting the valve block 500 and the throttle valve 510, not only can the system pressure of the entire steering pump detection equipment be adjusted to ensure stable detection, but also the steering pump 200 that cannot normally absorb oil can be identified before the performance parameters of the steering pump 200 are tested, avoiding waste of time and ensuring the accuracy of the test results.
[0050] In some embodiments, as Figure 1As shown, the steering pump testing equipment also includes a noise detection device 600, which is installed along the axis of the steering pump 200. The noise level generated by the steering pump 200 during operation is a key parameter for measuring steering pump performance. Therefore, the installation of the noise detection device 600 adds a new test item and expands the application range of the steering pump testing equipment.
[0051] In some embodiments, as Figure 2 As shown, the detection equipment of the steering pump also includes a first bracket 610, which is fixedly mounted on the valve block 500. The first bracket 610 is used to support the noise detection device 600, so that the noise detection device 600 can extend along the axial direction of the steering pump 200, which is beneficial to improving the accuracy of the detection result; and the pressure detection device 410, the flow detection device 420 and the first bracket 610 are all mounted on the valve block 500, reducing the space occupied.
[0052] In some embodiments, continue to refer to Figure 2 The noise detection device 600 is a sound level meter. The probe of the sound level meter extends along the axis of the steering pump 200, i.e., the x-axis in the figure. Along the x-axis, the distance between the end of the sound level meter probe closest to the steering pump 200 and the steering pump 200 is between 149.5 mm and 150.5 mm. For example, along the x-axis, the distance between the end of the sound level meter probe closest to the steering pump 200 and the steering pump 200 is 150.0 mm. Using this installation method and within this installation range can provide more accurate noise parameters.
[0053] In some embodiments, as Figure 1 and Figure 2 As shown, the detection equipment of the steering pump also includes a temperature detection device 700 and a second bracket 710. The temperature detection device 700 is arranged in the oil pot 300 and is used to detect the temperature of the oil in the oil pot 300. The temperature detection device 700 is fixed by the second bracket 710. The first end of the second bracket 710 is connected to the temperature detection device 700 so that the temperature detection device 700 suspended in the oil pot 300 does not contact any surface inside the oil pot 300. At the same time, the probe part of the temperature detection device 700 must be submerged in the oil in the oil pot 300; the second end of the second bracket 710 is fixed to the outer wall of the oil pot 300.
[0054] In some embodiments, the temperature detection device 700 can be, for example, a temperature sensor with a screen, which is used to display the temperature of the oil in the oil pot 300 detected by the temperature sensor. The first end of the second bracket 710 can be configured to rotate and extend around the second bracket 710 to facilitate adjustment of the position of the temperature detection device 700 in the oil pot 300.
[0055] By providing the temperature detection device 700 , the temperature of the oil can be monitored in real time, and thus changes in various performance parameters of the steering pump 200 as the temperature of the oil changes can be learned.
[0056] In some embodiments, as Figure 1 As shown, the steering pump testing equipment also includes a stand 800, which is provided with a receiving cavity 810. The motor, steering pump 200, oil tank 300, and testing module 400 are all mounted within the receiving cavity 810 of the stand 800. Mounting all of these devices on the stand 800 facilitates changing the overall environment of the steering pump testing equipment, better simulating the hydraulic steering system in a vehicle. In some embodiments, rollers can be installed on the bottom of the stand 800 to facilitate the movement of the entire steering pump testing equipment.
[0057] In some embodiments, as Figure 1 As shown, the detection equipment of the steering pump also includes a display screen 900 and a wire 910. The display screen 900 is installed on the outside of the stand 800, for example, it can be installed next to the accommodating cavity 810 along the y-axis direction; the detection module 400 and the display screen 900 are electrically connected through the wire 910, for example, the wire 910 of the detection module 400 passes through the cavity wall of the accommodating cavity 810 and is electrically connected to the back of the display screen 900, and the performance parameters detected by the detection module 400 are displayed on the display screen 900.
[0058] In some embodiments, the noise detection device 600 may also be electrically connected to the display screen 900. With this design, the display screen 900 may display all performance parameters that can be detected by the detection equipment of the steering pump.
[0059] By setting up a display screen 900 connected to the detection module 400, the pressure value, flow value and noise value established by the steering pump 200 during the working process can be displayed in real time, which is more convenient for personnel to view. Historical data can also be saved through software without manual recording, saving labor costs.
[0060] In some embodiments, the steering pump detection equipment can be used to perform a low-temperature test on the steering pump. The specific test process is as follows:
[0061] In order to simulate whether the steering pump of a car can work normally in a cold environment (for example: -40℃), the steering pump 200 to be tested is installed on the fixing device 210 located in the accommodating cavity 810, and the oil inlet pipe 310 and the oil outlet pipe 320 are connected to the steering pump 200. Oil is added to the oil pot 300. The freezing point of the oil should not be higher than -40℃. Then, the low-temperature detection equipment of the steering pump is placed in a -40℃ environment as a whole and left to stand for 8 hours.
[0062] After 8 hours, the motor is started to drive the steering pump 200. Because the steering pump's oil suction capacity may be affected in low-temperature environments, a test is first conducted to verify its ability to properly suction oil. The throttle valve 510 is adjusted. If the value of the pressure detection device 410 changes, this indicates that the steering pump 200 is properly suctioning oil and releasing oil to build pressure. At this point, subsequent testing of the steering pump's 200 pressure, flow rate, and noise levels as the oil temperature changes during operation, is initiated. If the value of the pressure detection device 410 remains unchanged after adjusting the throttle valve 510, this indicates that the steering pump 200 is not properly suctioning oil, and no further testing is required.
[0063] After confirming that the steering pump 200 can absorb oil normally, the throttle valve 510 is no longer adjusted. The temperature of the oil will change after the steering pump 200 is working. Record whether the noise generated by the steering pump 200 and the changes in the pressure and flow rate as the oil temperature changes in a low temperature environment are within the preset range. If they are within the preset range, it proves that the steering pump 200 is qualified and can be shipped from the factory for installation.
[0064] During the operation of a standard steering pump, the pressure, flow and noise are all within a preset range. For example, the flow value required to be established is greater than or equal to 1L / min, the noise value required to be generated after 1 minute of operation is required to be less than or equal to 78dB, and the no-load pressure must be established after 10 seconds of operation.
[0065] The setting of the test stand 800 facilitates the movement of the entire steering pump detection equipment, and better simulates the situation of the entire vehicle in a low-temperature environment; by setting a detection module 400 on the oil outlet pipe 320 between the output end of the steering pump 200 and the oil tank 300, and setting a noise detection device 600 and a temperature detection device 700, the changes in various performance parameters of the steering pump during operation in a low-temperature environment can be known in real time; the data detected by the detection module 400 and the noise detection device 600 are displayed on the display screen 900, which is more convenient for technical personnel to observe, simplifies the connection method and improves the detection efficiency.
[0066] In some embodiments, a high temperature test can be performed using steering pump detection equipment to simulate whether the steering pump 200 of the vehicle can operate normally in a hot environment. Of course, other weather conditions can also be simulated, which will not be described in detail here.
[0067] In some embodiments, a light prompt device and / or a sound prompt device is provided on the stand 800. By inputting a preset range on the installed software, when the value of a performance parameter displayed on the display screen 900 exceeds the preset range, the light prompt device flashes or the sound prompt device emits a sound prompt, which helps people to know the operating status of the steering pump 200 in a timely and convenient manner.
[0068] In some embodiments, a stage door 100 is provided on the stage 800 . The provision of the stage door 100 can prevent external impurities or organisms from entering the accommodating cavity 810 during the experiment and affecting the operation of the steering pump 200 .
[0069] The contents described above can be implemented individually or in combination in various ways, and these variations are all within the scope of protection of this application.
[0070] It should be noted that, in the description of this application, the terms "upper", "lower", "front", "back", etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.
[0071] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.
[0072] In this application, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections; direct connections, or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.
[0073] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.
[0074] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.
[0075] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.
Claims
1. A steering pump detection device, characterized in that: The detection equipment of the steering pump includes: Motor; A steering pump connected to the motor, the motor being used to drive the steering pump to work; an oil pot, the oil pot being vertically positioned higher than the steering pump, and an oil inlet pipe being connected between the oil pot and an input end of the steering pump; A detection module is provided on an oil outlet pipe, wherein the oil outlet pipe connects an output end of the steering pump and the oil tank, and the detection module is used to detect performance parameters of the steering pump.
2. The steering pump detection device according to claim 1, characterized in that: The detection module includes a pressure detection device and a flow detection device.
3. The steering pump detection device according to claim 2, characterized in that: The steering pump detection device further includes a throttle valve and a valve block, wherein the valve block is mounted on the oil outlet pipe, an inner cavity of the valve block is communicated with the oil outlet pipe, and the throttle valve is mounted on and communicated with the valve block, and the throttle valve is used to adjust the flow rate of oil in the valve block; The pressure detection device and the flow detection device are both installed on the valve block.
4. The steering pump detection device according to claim 3, characterized in that: The detection equipment of the steering pump further includes a noise detection device, which is installed in the axial direction of the steering pump.
5. The steering pump detection device according to claim 4, characterized in that: The detection equipment for the steering pump further includes a first bracket, which is fixedly mounted on the valve block and is used to support the noise detection device.
6. The steering pump detection device according to claim 4, characterized in that: The noise detection device is a sound level meter. The probe of the sound level meter is installed in the axial direction of the steering pump. The distance between the end of the probe close to the steering pump and the steering pump is between 149.5 mm and 150.5 mm.
7. The steering pump detection device according to claim 1, characterized in that: The steering pump detection device further includes a temperature detection device and a second bracket, wherein the second bracket is used to fix the temperature detection device, and the temperature detection device is arranged in the oil pot, and the temperature detection device is used to detect the temperature of the oil in the oil pot; The first end of the second bracket is connected to the temperature detection device, and the second end of the second bracket is fixedly mounted on the outer wall of the oil pot.
8. The steering pump detection device according to any one of claims 1 to 7, characterized in that: The detection equipment of the steering pump further includes a stand, and the motor, the steering pump, the oil pot and the detection module are all mounted on the stand.
9. The steering pump detection device according to claim 8, characterized in that: The detection device of the steering pump further includes a display screen, which is disposed on the stand and electrically connected to the detection module. The display screen is used to display the performance parameters detected by the detection module.
10. The steering pump detection device according to claim 9, characterized in that: The stand is provided with a housing cavity, the motor, the steering pump, the oil tank and the detection module are all arranged in the housing cavity, the display screen is installed outside the stand, and the wires of the detection module are electrically connected to the back side of the display screen through the cavity wall of the housing cavity.