An oil pump and gas pump working condition performance test bench

Abstract

This application relates to the field of mechanical testing and discloses a test bench for the operating performance of oil pumps and air pumps. The bench includes a main body with a transverse partition dividing it into an upper and lower space. The upper space contains a vertical partition dividing it into an oil pump testing area and a control module area. The oil pump testing area includes a hydraulic oil tank and a first placement platform. The hydraulic oil tank has an inlet and an outlet, which are connected to the oil pump via oil pipes. The control module area contains a central controller, and a control panel is located on the outer wall of the bench in this area. The lower space contains a high-voltage power supply, a fixed socket, and a second placement platform. An air tank is plugged into the fixed socket in the lower space, and the air tank's valve is connected to the air pump via an air pipe. A temperature control component is also installed on the bench. This application improves the efficiency of testing the operating performance of oil pumps and air pumps.

Description

Technical Field

[0001] This application relates to the field of mechanical testing, and in particular to a test bench for the operating performance of oil pumps and air pumps. Background Technology

[0002] In today's transportation sector, commercial vehicles and buses play an indispensable role, especially with the booming development of new energy commercial vehicles and buses, which has greatly improved transportation efficiency and reduced energy consumption. Oil pumps and air pumps, as key components of these vehicles, have a profound impact on vehicle safety, handling, and overall performance due to their stable operation. Oil pumps provide power assistance to the vehicle's steering system, ensuring precise driving control; air pumps are responsible for storing gas, providing power to the braking system and door opening and closing mechanisms. Therefore, accurately testing and evaluating the operating performance of oil pumps and air pumps is crucial for ensuring the safe and reliable operation of vehicles, and has become a key link in driving technological progress in the automotive industry. At the same time, accurate performance testing helps manufacturers optimize product design, improve product quality, and enhance market competitiveness.

[0003] Traditionally, the performance testing of oil pumps and air pumps has primarily relied on vehicle-wide testing. This method requires personnel to conduct tests during actual vehicle operation, evaluating the working condition of the oil pumps and air pumps by observing various performance indicators. Additionally, for complex issues, the vehicle may need to be sent to the motor manufacturer for specialized testing. However, these testing methods have significant limitations.

[0004] Existing testing methods have significant shortcomings. Since most tests are conducted on the entire vehicle, it's difficult to comprehensively simulate the various extreme or special operating environments a vehicle might face, resulting in inaccurate and incomplete test results. Furthermore, each test must be completed on the entire vehicle, making the process cumbersome and unable to meet the complex requirements of simultaneous operation of oil and air pumps. With the continuous increase in the number of vehicles on the road, the number of motors requiring testing has risen sharply, significantly reducing the efficiency of testing work and severely impacting production and maintenance schedules. Utility Model Content

[0005] To improve the efficiency of testing the operating performance of oil pumps and air pumps, this application provides a test bench for the operating performance of oil pumps and air pumps.

[0006] The oil pump and air pump performance test bench provided in this application adopts the following technical solution:

[0007] A performance testing bench for oil pumps and air pumps includes a bench body. The bench body has a transverse partition dividing it into an upper space and a lower space. The upper space has a vertical partition dividing it into an oil pump testing area and a control module area. The oil pump testing area includes a hydraulic oil tank and a first placement platform. The hydraulic oil tank has an inlet and an outlet, which are connected to the oil pump via oil pipes. The control module area contains a central controller. A control panel electrically connected to the central controller is located on the outer wall of the bench body in the control module area. The lower space contains a high-voltage power supply, a fixed socket, and a second placement platform. An air canister is plugged into the fixed socket in the lower space. The valve of the air canister is connected to the air pump via an air pipe. The bench body also has a temperature control component connecting the oil pump testing area and the lower space.

[0008] By adopting the above technical solution, the interior of the test bench is divided into different areas, which facilitates the zoned testing of oil pumps and air pumps. A hydraulic oil tank and oil pipe are set up to connect the oil pump, and an air tank and air pipe are set up to connect the air pump, which facilitates the load testing of the oil pump and air pump. At the same time, a central controller, control panel and temperature control components are set up to enable centralized control and temperature adjustment of the testing process, simulating extreme temperature conditions, thereby improving the testing efficiency and accuracy.

[0009] Optionally, the control panel is equipped with a hydraulic gauge, a pneumatic pressure gauge, a display panel, and control buttons. The hydraulic gauge includes an oil pump hydraulic gauge and an oil tank hydraulic gauge, and the pneumatic pressure gauge includes an air pump pressure gauge and an air tank pressure gauge.

[0010] By adopting the above technical solution, operators can intuitively obtain hydraulic data of oil pump and hydraulic tank using hydraulic gauges, check air pressure of air pump and air tank using air pressure gauges, centrally view various data through display panel, and control buttons facilitate operators to flexibly control the testing process, thereby carrying out oil pump and air pump performance testing work more efficiently.

[0011] Optionally, the lower space is divided into an air pump testing area and a storage area by vertical partitions. The high-voltage power supply, fixed socket and second placement platform are all located in the air pump testing area. The storage area is equipped with a storage rack, on which several gas cylinders are arranged.

[0012] By adopting the above technical solution, the lower space is divided into an air pump testing area and a storage area. A storage rack is set up in the storage area to store air cylinders, which can conveniently store multiple air cylinders for air pump testing, reducing the risk of the testing process being affected by insufficient air cylinders. At the same time, it makes the layout of the test bench more reasonable and facilitates the orderly conduct of air pump testing.

[0013] Optionally, the top of the first placement platform is provided with a sliding groove, and a limiting slider is slidably provided in the sliding groove. The limiting slider reciprocates towards the hydraulic oil tank, and a fixed seat is provided at the top of the top wall of the first placement platform where the limiting slider extends. A fixing component for fixing the oil pump is provided on the fixed seat. An elastic element is provided at one end of the sliding groove, and the elastic element abuts against the limiting slider and the inner end wall of the sliding groove. A rotary motor electrically connected to the central controller is provided at the other end of the sliding groove. The output shaft of the rotary motor extends upward out of the top wall of the first placement platform, and a cam is fitted on the end of the motor that extends out of the top wall of the first placement platform. The side wall of the cam is always in contact with the side wall of the fixed seat.

[0014] By adopting the above technical solution, under the elastic support of the elastic element, starting the rotating motor can make the cam rotate. The rotating cam pushes the fixed seat that fixes the oil pump to slide back and forth along the slide groove, which can simulate the impact on the oil pump when the car changes speed or brakes suddenly, thereby improving the accuracy of the test results.

[0015] Optionally, the top wall of the fixing base has two staggered drive slots. The fixing assembly includes a clamping plate that slides relative to each other in the drive slot, a bidirectional screw that rotates in the drive slot, and a servo motor that drives the bidirectional screw to rotate. The two bidirectional screws do not interfere with each other. The clamping plate is screwed onto the threaded section of the corresponding bidirectional screw through a threaded rotation. The servo motor corresponds to each bidirectional screw and is coaxially connected to the corresponding bidirectional screw.

[0016] By adopting the above technical solution, the bidirectional screw and servo motor drive the opposing clamping plates to slide relative to each other in the drive groove, which can flexibly adjust the fixing force and position of the oil pump, thereby fixing the oil pump more stably, reducing the risk of the oil pump falling off during the test, and improving the accuracy of the test data.

[0017] Optionally, rubber pads are provided on opposite sides of the two sliding clamping plates.

[0018] By adopting the above technical solution, the rubber pad can prevent the clamping plate from directly contacting the oil pump, prevent the oil pump surface from being scratched when fixing the oil pump, and play a role in protecting the oil pump.

[0019] Optionally, the two opposing sliding clamping plates are provided with reinforcing ribs on their opposite sides to support the top wall of the fixing seat.

[0020] By adopting the above technical solution, reinforcing ribs that support the top wall of the fixing seat are set on the opposite sides of the two relatively sliding clamping plates, which can enhance the stability and structural strength of the clamping plates, enable the clamping plates to withstand greater pressure when fixing the oil pump, improve the reliability of fixing the oil pump, and reduce the risk of the oil pump loosening due to vibration and other factors during the test.

[0021] Optionally, the temperature control component includes a fan and a temperature sensor. The fan is located on the outer wall of the test bench body. An electric heating wire electrically connected to the central controller is installed inside the fan. An air duct is provided at the air outlet of the fan. The air duct has two air outlets, which are respectively connected to the oil pump test area and the air pump test area. A temperature sensor is provided for each of the oil pump test area and the air pump test area. The temperature sensor is electrically connected to the central controller and is located on the inner wall of the test bench body.

[0022] By adopting the above technical solution, when the power is on, the fan rotates to draw in air. When the heating wire is energized, the air is heated by the heating wire and then blown out as hot air. If the heating wire is not energized, cold air is blown out. The control circuit switches the energization state of the heating wire to achieve the switching between hot and cold air, thereby adjusting the temperature of the oil pump test area and the air pump test area to simulate different working conditions. The temperature sensor can monitor the temperature of these two areas in real time and feed the data back to the central controller, which facilitates precise temperature control.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The test bench body is divided into different areas to facilitate zoned testing of oil pumps and air pumps. A hydraulic oil tank and oil pipe are set to connect the oil pump, and an air tank and air pipe are set to connect the air pump, which facilitates load testing of the oil pump and air pump. At the same time, a central controller, control panel and temperature control components are set up to enable centralized control and temperature adjustment of the testing process, simulate extreme temperature conditions, thereby improving testing efficiency and accuracy.

[0025] 2. Operators can use the hydraulic gauge to intuitively obtain the hydraulic data of the oil pump and hydraulic tank, use the air pressure gauge to check the air pressure of the air pump and air tank, and view various data centrally through the display panel. The control buttons allow operators to flexibly control the testing process, thereby carrying out oil pump and air pump performance testing more efficiently.

[0026] 3. The lower space is divided into an air pump testing area and a storage area. Storage racks are set up in the storage area to store air cylinders, which can conveniently store multiple air cylinders for air pump testing, reducing the risk of the testing process being affected by insufficient air cylinders. At the same time, it makes the layout of the test bench more reasonable and facilitates the orderly conduct of air pump testing. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0028] Figure 2 This is a cross-sectional view showing the internal structure of the platform body in the embodiments of this application.

[0029] Figure 3This is a cross-sectional view illustrating the connection relationship between the first placement platform, the limiting slider, and the fixed seat in the embodiments of this application.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Stand body; 11. Upper space; 111. Oil pump test area; 112. Control module area; 1121. Central controller; 12. Lower space; 121. Air pump test area; 1211. High-voltage power supply; 1212. Fixed socket; 1213. Second placement platform; 1214. Air tank; 122. Storage area; 1221. Storage rack; 13. Pressure relief hole; 2. Base; 3. Horizontal partition; 4. Vertical partition; 5. Control panel; 51. Hydraulic gauge; 511. Oil pump hydraulic gauge; 512. Oil tank hydraulic gauge; 52. Air pressure gauge; 521. Air pump 522. Pressure gauge; 53. Display panel; 54. Control button; 6. Hydraulic oil tank; 61. Oil inlet; 62. Oil outlet; 63. Oil pipe; 7. First placement platform; 71. Slide groove; 711. Limit slider; 712. Elastic element; 713. Rotary motor; 7131. Cam; 72. Fixed seat; 721. Drive groove; 8. Fixed assembly; 81. Clamping plate; 811. Rubber pad; 812. Reinforcing rib; 82. Bidirectional screw; 83. Servo motor; 9. Temperature control assembly; 91. Fan; 911. Air duct; 92. Temperature sensor. Detailed Implementation

[0032] The following is in conjunction with the appendix Figures 1-3 This application will be described in further detail.

[0033] This application discloses a test bench for testing the operating conditions of oil pumps and air pumps.

[0034] Reference Figure 1 and Figure 2 A performance testing bench for oil pumps and air pumps includes a bench body 1 supported by insulation material. A base 2 is fixedly installed at the bottom of the bench body 1. A horizontal partition 3 is fixedly installed inside the bench body 1, dividing the bench body 1 into an upper space 11 and a lower space 12. A vertical partition 4 is fixedly installed inside the upper space 11, dividing the upper space 11 into an oil pump testing area 111 and a control module area 112. The lower space 12 is divided into an air pump testing area 121 and a storage area 122 by the vertical partition 4.

[0035] Reference Figure 1 and Figure 2The control module area 112 contains a central controller 1121. The outer wall of the stand body 1 in the control module area 112 is equipped with a control panel 5 that is electrically connected to the central controller 1121. The control panel 5 is equipped with a hydraulic gauge 51, a pressure gauge 52, a display panel 53, and control buttons 54. The hydraulic gauge 51 includes an oil pump hydraulic gauge 511 and an oil tank hydraulic gauge 512. The pressure gauge 52 includes an air pump pressure gauge 521 and an air tank pressure gauge 522, all of which are controlled by the central controller 1121.

[0036] Reference Figure 2 The oil pump test area 111 is equipped with a hydraulic oil tank 6 and a first placement platform 7. The hydraulic oil tank 6 is provided with an oil inlet 61 and an oil outlet 62. The oil inlet 61 and the oil outlet 62 are respectively connected to the oil pump through oil pipes 63.

[0037] Reference Figure 2 and Figure 3 The top of the first placement platform 7 is provided with a sliding groove 71. A limiting slider 711 slides within the sliding groove 71 and reciprocates toward the hydraulic oil tank 6. The limiting slider 711 extends to the top of the top wall of the first placement platform 7 and is fixedly mounted with a fixing seat 72. One end of the sliding groove 71 is provided with an elastic element 712. In this embodiment, a spring is used as an example. The spring abuts against the limiting slider 711 and the inner end wall of the sliding groove 71. The other end of the sliding groove 71 is equipped with a rotary motor 713. The output shaft of the rotary motor 713 extends upward beyond the top wall of the first placement platform 7, and a cam 7131 is fixedly sleeved on the end extending beyond the top wall of the first placement platform 7. The side wall of the cam 7131 is always in contact with the side wall of the fixing seat 72.

[0038] Reference Figure 2 and Figure 3 Under the elastic support of the elastic element 712, starting the rotating motor 713 can make the cam 7131 rotate. The rotating cam 7131 pushes the fixed seat 72 that fixes the oil pump to slide back and forth along the slide groove 71, which can simulate the impact on the oil pump when the car changes speed or brakes suddenly.

[0039] Reference Figure 2 and Figure 3 The fixed base 72 is provided with a fixing component 8 for fixing the oil pump. The top wall of the fixed base 72 has two vertically intersecting drive slots 721. The fixing component 8 includes a clamping plate 81, a bidirectional screw 82 and a servo motor 83. Two clamping plates 81 are slidably arranged relative to each drive slot 721. Rubber pads 811 are fixedly arranged on the opposite side walls of the two relatively sliding clamping plates 81, and reinforcing ribs 812 that abut against the top wall of the fixed base 72 are fixedly arranged on the opposite side walls.

[0040] Reference Figure 2 and Figure 3The two bidirectional screws 82 do not interfere with each other and are at different heights. Each clamping plate 81 is screwed onto the threaded section of the corresponding bidirectional screw 82. The servo motor 83 corresponds to the bidirectional screw 82 one by one and is fixedly installed on the outer wall of the fixed seat 72. Its output shaft rotates through the fixed seat 72 to the drive groove 721 and is coaxially fixedly connected with the bidirectional screw 82 in the drive groove 721.

[0041] Reference Figure 2 The air pump testing area 121 is equipped with a high-voltage power supply 1211, a fixed socket 1212 and a second placement platform 1213. A gas canister 1214 is plugged into the fixed socket 1212. The valve port of the gas canister 1214 is connected to the air pump through an air pipe. A storage rack 1221 is fixedly installed in the storage area 122, and several gas canisters 1214 are arranged and fixed on the storage rack 1221.

[0042] Reference Figure 2 The second placement platform 1213 in the air pump test area 121 is the same as the first placement platform 7 in terms of the method of fixing and testing the air pump, which will not be described in detail here.

[0043] Reference Figure 1 and Figure 2 To test the performance of the oil pump and air pump under extreme temperature conditions, a temperature control component 9 is also provided on the test bench 1, connecting the oil pump test area 111 and the air pump test area 121. The temperature control component 9 includes a fan 91 and a temperature sensor 92. The fan 91 is installed on the outer wall of the test bench 1, and an electric heating wire (not shown in the figure) electrically connected to the central controller 1121 is installed inside the fan 91. An air duct 911 is connected to the air outlet of the fan 91, and two air outlets are provided on the air duct 911, which are respectively connected to the oil pump test area 111 and the air pump test area 121. A temperature sensor 92 is fixedly provided for each of the oil pump test area 111 and the air pump test area 121. The temperature sensor 92 is electrically connected to the central controller 1121 and is fixedly installed on the inner wall of the test bench 1.

[0044] Reference Figure 1 and Figure 2 In order to reduce excessive air pressure in the oil pump test area 111 and the air pump test area 121, several pressure relief holes 13 are opened on the side wall of the test bench body 1 corresponding to the oil pump test area 111 and the air pump test area 121.

[0045] The implementation principle of the oil pump and air pump performance test bench in this application embodiment is as follows: Before testing, when placing the oil pump and air pump, the central controller 1121 controls the servo motor 83 to rotate, which drives the bidirectional screw 82 to rotate, so that the clamping plate 81 slides relative to each other, and quickly and accurately fixes the oil pump and air pump. The rubber pad 811 increases the friction to protect the oil pump and air pump, and the reinforcing rib 812 enhances the stability of the clamping plate 81.

[0046] During testing, the operator inputs commands to the central controller 1121 via the control button 54 on the control panel 5 to start the oil pump and air pump. The high-voltage power supply 1211 supplies power to all components of the test bench, the hydraulic oil tank 6 supplies hydraulic oil to the oil pump through the oil pipe 63, and the air tank 1214 supplies air to the air pump through the air pipe to perform load testing.

[0047] At the same time, the temperature control component 9 starts to work, and the temperature sensor 92 monitors the temperature of the oil pump test area 111 and the air pump test area 121 in real time and transmits the data to the central controller 1121. The central controller 1121 adjusts the heating power of the heating wire and the speed of the fan 91 according to the set temperature value to simulate different ambient temperatures.

[0048] The rotating motor 713 on the first placement platform 7 rotates under the control of the central controller 1121, driving the cam 7131 to rotate. The cam 7131 pushes the fixed seat 72 and the limit slider 711 to move back and forth in the slide groove 71, simulating the vibration and displacement of the oil pump during vehicle operation. At this time, the elastic element 712 plays a role in buffering and resetting.

[0049] The hydraulic gauge 51 on the control panel 5 monitors the hydraulic pressure in the oil pump and hydraulic oil tank 6 in real time, while the air pressure gauge 52 monitors the air pressure in the air pump and air tank 1214 in real time. The display panel 53 displays the operating status and test data of each component, allowing operators to easily monitor the test progress. When the air in the air tank 1214 is depleted, a spare air tank 1214 can be replaced from the storage rack 1221 in the reserve area 122, improving the continuity of testing. Compared with traditional whole vehicle testing methods, this test bench can more efficiently complete the performance testing of the oil pump and air pump, solving problems such as inaccurate test results, cumbersome operation, and inability to simulate complex working conditions in existing testing methods, and making a significant improvement and contribution to existing technology.

[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A test bench for testing the operating performance of oil pumps and air pumps, characterized in that... The system includes a test bench (1), which has a transverse partition (3) inside. The transverse partition (3) divides the test bench (1) into an upper space (11) and a lower space (12). The upper space (11) has a vertical partition (4) inside, which divides the upper space (11) into an oil pump test area (111) and a control module area (112). The oil pump test area (111) has a hydraulic oil tank (6) and a first placement platform (7). The hydraulic oil tank (6) has an oil inlet (61) and an oil outlet (62). The oil inlet (61) and the oil outlet (62) are respectively connected to the oil pump through oil pipes (63). A central controller (1121) is placed in the control module area (112). A control panel (5) electrically connected to the central controller (1121) is provided on the outer wall of the test bench body (1) in the control module area (112). A high-voltage power supply (1211), a fixed socket (1212) and a second placement platform (1213) are provided in the lower space (12). A gas canister (1214) is plugged into the fixed socket (1212) in the lower space (12). The valve port of the gas canister (1214) is connected to the air pump through a gas pipe. A temperature control component (9) connecting the oil pump test area (111) and the lower space (12) is also provided on the test bench body (1).

2. The oil pump / air pump performance test bench according to claim 1, characterized in that... The control panel (5) is equipped with a hydraulic gauge (51), a pneumatic gauge (52), a display panel (53), and control buttons (54). The hydraulic gauge (51) includes an oil pump hydraulic gauge (511) and an oil tank hydraulic gauge (512). The pneumatic gauge (52) includes an air pump pneumatic gauge (521) and an air tank pneumatic gauge (522).

3. The oil pump / air pump performance test bench according to claim 1, characterized in that... The lower space (12) is divided into an air pump test area (121) and a storage area (122) by a vertical partition (4). The high-voltage power supply (1211), the fixed socket (1212) and the second placement platform (1213) are all located in the air pump test area (121). The storage area (122) is equipped with a storage rack (1221) and several gas cylinders (1214) are arranged on the storage rack (1221).

4. The oil pump / air pump performance test bench according to claim 1, characterized in that... The top of the first placement platform (7) is provided with a sliding groove (71), and a limiting slider (711) is slidably provided in the sliding groove (71). The limiting slider (711) slides back and forth toward the hydraulic oil tank (6), and a fixing seat (72) is provided at the top of the top wall of the first placement platform (7) where the limiting slider (711) extends. A fixing component (8) for fixing the oil pump is provided on the fixing seat (72). An elastic element (712) is provided at one end of the sliding groove (71). The component (712) abuts against the limit slider (711) and the inner end wall of the slide groove (71). The other end of the slide groove (71) is provided with a rotating motor (713) electrically connected to the central controller (1121). The output shaft of the rotating motor (713) extends upward out of the top wall of the first placement platform (7), and a cam (7131) is sleeved on the end of the extension out of the top wall of the first placement platform (7). The side wall of the cam (7131) and the side wall of the fixed seat (72) are always in contact.

5. The oil pump / air pump operating condition performance test bench according to claim 4, characterized in that... The top wall of the fixed base (72) is provided with two staggered drive slots (721). The fixed assembly (8) includes a clamping plate (81) that slides relative to each other in the drive slot (721), a bidirectional screw (82) that rotates in the drive slot (721), and a servo motor (83) that drives the bidirectional screw (82) to rotate. The two bidirectional screws (82) do not interfere with each other. The clamping plate (81) is screwed onto the threaded section of the corresponding bidirectional screw (82) by a threaded rotation. The servo motor (83) corresponds one-to-one with the bidirectional screw (82) and is coaxially connected with the corresponding bidirectional screw (82).

6. The oil pump / air pump performance test bench according to claim 5, characterized in that... Two relatively sliding clamping plates (81) are provided with rubber pads (811) on opposite sides.

7. The oil pump / air pump performance test bench according to claim 6, characterized in that... The two relatively sliding clamping plates (81) are provided with reinforcing ribs (812) on the top wall of the supporting fixing seat (72) on opposite sides.

8. The oil pump / air pump operating condition performance test bench according to claim 3, characterized in that... The temperature control component (9) includes a fan (91) and a temperature sensor (92). The fan (91) is located on the outer wall of the test bench body (1). The fan (91) is equipped with a heating wire that is electrically connected to the central controller (1121). The fan (91) has an air duct (911) at its air outlet. The air duct (911) has two air outlets that are connected to the oil pump test area (111) and the air pump test area (121) respectively. The temperature sensor (92) is provided for both the oil pump test area (111) and the air pump test area (121). The temperature sensor (92) is electrically connected to the central controller (1121) and is located on the inner wall of the test bench body (1).

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