Diesel engine lubricating oil circuit pressure detection equipment

Abstract

The utility model relates to diesel engine lubricating oil circuit pressure detection equipment which comprises a pressure detection module which comprises an oil pump, a valve block used for being communicated with a diesel engine lubricating oil circuit, a control valve and a pressure sensor which are arranged on an output pipeline of the valve block, and a proportional electromagnetic valve arranged on a feedback oil circuit of the oil pump. According to the technical scheme, an X-direction sliding bottom plate is arranged at the bottom of the pressure detection module, an X-direction support is arranged below the X-direction sliding bottom plate, an X-direction driving mechanism is arranged between the X-direction support and the X-direction sliding bottom plate, an annular horizontal conveyor is arranged on the X-direction side of the X-direction support, and a plurality of rotary tables are evenly fixed to the upper surface of a conveying belt of the annular horizontal conveyor. The equipment solves the problems of high labor intensity and time and labor waste during batch detection, and the detection efficiency is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of diesel engine detection, in particular to a diesel engine lubricating oil circuit pressure detection device. Background Art

[0002] The diesel engine lubrication system is an important part of the engine assembly, which provides the minimum lubricating oil pressure and flow required for the normal operation of the engine. The diesel engine lubrication system generally uses an oil pump to inject lubricating oil into the engine's lubricating oil circuit. The oil pump changes the pressure and flow of the feedback oil circuit by adjusting the duty cycle of the proportional solenoid valve on its feedback oil circuit, thereby controlling the minimum lubricating oil pressure and flow required for the engine to work. When there is a problem with the sealing of the diesel engine's lubricating oil circuit, it seriously affects the long-term stable operation of the diesel engine.

[0003] At present, when the lubricating oil circuit of a diesel engine is inspected at the factory, pressure testing is required to ensure the stability of subsequent work. The existing detection device includes an oil pump, a valve block connected to the lubricating oil circuit of the diesel engine, a control valve and a pressure sensor arranged on the output pipeline of the valve block, and a proportional solenoid valve arranged on the feedback oil circuit of the oil pump. During the detection, the opening of the proportional solenoid valve is adjusted multiple times, and the detection signal of the pressure sensor is received in real time. When the normal signal output is not met, it indicates that there is a problem with the air tightness of the lubricating oil circuit. However, there are the following problems in the detection process: 1. During batch detection, the staff is required to move each engine one by one to the vicinity of the detection device, which is labor-intensive; 2. When connecting the output pipeline of the valve block to the lubricating oil circuit of the engine, it is necessary to avoid twisting of the pipeline or bending less than 60 degrees, which requires the staff to adjust the position of the engine. The engine is heavy, and it is time-consuming and labor-intensive to move and adjust the position. Utility Model Content

[0004] The utility model aims to provide a diesel engine lubricating oil circuit pressure detection device with reasonable structure and reliable use, so as to solve the problems of high labor intensity, time-consuming and labor-intensive batch detection and significantly improve the detection efficiency.

[0005] The technical solution of the utility model is:

[0006] A diesel engine lubricating oil circuit pressure detection device comprises a pressure detection module, the pressure detection module comprises an oil pump, a valve block for communicating with the diesel engine lubricating oil circuit, a control valve and a pressure sensor arranged on the output pipeline of the valve block, and a proportional solenoid valve arranged on the feedback oil circuit of the oil pump. The technical key points are: an X-direction sliding bottom plate is provided at the bottom of the pressure detection module, an X-direction support is provided below the X-direction sliding bottom plate, an X-direction driving mechanism is provided between the X-direction support and the X-direction sliding bottom plate, an annular horizontal conveyor is provided on the X-direction side of the X-direction support, and a plurality of turntables are evenly fixed on the upper surface of the conveyor belt of the annular horizontal conveyor.

[0007] The above-mentioned diesel engine lubricating oil circuit pressure detection equipment, the X-axis driving mechanism includes an X-axis screw supported on the upper surface of the X-axis support, and a thread sleeve arranged on the X-axis screw, the thread sleeve is connected and fixed to the bottom surface of the X-axis sliding base plate, and a manual turntable is fixed to the outer end of the X-axis screw.

[0008] In the above diesel engine lubricating oil circuit pressure detection device, the bottom surface of the X-direction sliding base plate is provided with an X-direction sliding block, and the X-direction support is provided with an X-direction track that cooperates with the X-direction sliding block.

[0009] In the above diesel engine lubricating oil circuit pressure detection equipment, an induction ring is provided on the periphery of the fixed part of the turntable, and a proximity switch for cooperating with the induction ring is provided on the upper surface of the X-axis support.

[0010] The above-mentioned diesel engine lubricating oil circuit pressure detection equipment, the annular horizontal conveyor is composed of two parallel straight segments, a first U-shaped bend segment connected to the same end of the two straight segments, and a second U-shaped bend segment connected to the other same end of the two straight segments. The number of the turntables is 4, which are respectively arranged above the first U-shaped bend segment, the second U-shaped bend segment and the two straight segments. The second U-shaped bend segment is connected to the X-axis support and is the detection area. The first U-shaped bend segment is the discharge area, one of the straight segments is the unloading area, and the other straight segment is the transition area.

[0011] The beneficial effects of the utility model are:

[0012] 1. The circular horizontal conveyor can drive each turntable to the inspection area in turn, without the need for staff to push it over a long distance, saving time and effort, and significantly improving the inspection efficiency.

[0013] 2. After arriving at the detection area, the turntable rotates to make the engine wiring position close to the pressure detection module and facilitate the connection of the pipeline, and avoid pipeline twisting. After the detection pipeline is connected, the X-axis drive mechanism is used to drive the X-axis sliding bottom plate to move away from the turntable to avoid the pipeline from bending less than 60 degrees, ensuring the oil path is unobstructed, thereby ensuring the accuracy of the test results.

[0014] 3. The turntable is positioned in the detection area using an induction ring and a proximity switch. When the turntable reaches the detection area, the circular horizontal conveyor stops to avoid excessive transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 yes Figure 1 A top view of

[0017] Figure 3 yes Figure 1 Enlarged view of part A in the middle.

[0018] In the figure: 1. turntable, 2. circular horizontal conveyor, 3. proportional solenoid valve, 4. oil pump, 5. X-axis sliding base plate, 6. manual turntable, 7. X-axis support, 8. X-axis track, 9. valve block, 10. pressure sensor, 11. X-axis lead screw, 12. proximity switch, 13. induction ring. DETAILED DESCRIPTION

[0019] The utility model is described in detail according to the accompanying drawings of the specification.

[0020] like Figure 1 to Figure 3 As shown, the diesel engine lubricating oil circuit pressure detection device includes a pressure detection module, which includes an oil pump 4, a valve block 9 for communicating with the diesel engine lubricating oil circuit, a control valve and a pressure sensor 10 arranged on the output pipeline of the valve block 9, and a proportional solenoid valve 3 arranged on the feedback oil circuit of the oil pump 4.

[0021] Wherein, an X-direction sliding bottom plate 5 is provided at the bottom of the pressure detection module, an X-direction support 7 is provided below the X-direction sliding bottom plate 5, and an X-direction driving mechanism is provided between the X-direction support 7 and the X-direction sliding bottom plate 5. In this embodiment, the X-direction driving mechanism includes an X-direction lead screw 11 supported on the upper surface of the X-direction support 7, a thread sleeve provided on the X-direction lead screw 11, the thread sleeve is connected and fixed to the bottom surface of the X-direction sliding bottom plate 5, and a manual rotating wheel 6 is fixed to the outer end of the X-direction lead screw 11. An X-direction sliding block is provided on the bottom surface of the X-direction sliding bottom plate 5, and an X-direction track 8 cooperating with the X-direction sliding block is provided on the X-direction support 7.

[0022] An annular horizontal conveyor 2 is provided on the X-direction side of the X-direction support 7, and a plurality of turntables 1 are evenly fixed on the upper surface of the conveyor belt of the annular horizontal conveyor 2. In this embodiment, the annular horizontal conveyor 2 is composed of two parallel straight segments, a first U-shaped bend connected to the same end of the two straight segments, and a second U-shaped bend connected to the other same end of the two straight segments. The number of the turntables 1 is 4, which are respectively arranged above the first U-shaped bend, the second U-shaped bend and the two straight segments. The second U-shaped bend is connected to the X-direction support 7 and is a detection area. The first U-shaped bend is a material discharge area, one of the straight segments is a material discharge area, and the other straight segment is a transition area. An induction ring 13 is provided on the outer periphery of the fixed part of the turntable 1, and a proximity switch 12 for cooperating with the induction ring 13 is provided on the upper surface of the X-direction support 7.

[0023] Working principle:

[0024] During operation, the staff puts the engine to be tested on the upper surface of the rotating part of the turntable 1 in the material discharge area. After the ring-shaped horizontal conveyor 2 drives the engine on the turntable 1 to reach the detection area, the proximity switch 12 sends a signal, and the ring-shaped horizontal conveyor 2 stops.

[0025] The pressure detection module is connected to the lubrication pipeline of the engine by using the detection pipeline.

[0026] During the detection, the opening of the proportional solenoid valve 3 is adjusted multiple times, and the detection signal of the pressure sensor 10 is received in real time. When the normal signal output range is exceeded, it indicates that there is a problem with the air tightness of the lubricating oil circuit.

[0027] The above is a detailed description of the embodiments of the utility model, but the above contents are only preferred embodiments of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of the invention of the utility model should still fall within the scope of this patent.

Claims

1. A diesel engine lubricating oil circuit pressure detection device, comprising a pressure detection module, the pressure detection module comprising an oil pump, a valve block for communicating with the diesel engine lubricating oil circuit, a control valve and a pressure sensor arranged on the output pipeline of the valve block, and a proportional solenoid valve arranged on the feedback oil circuit of the oil pump, characterized in that: An X-axis sliding base plate is provided at the bottom of the pressure detection module, an X-axis support is provided below the X-axis sliding base plate, an X-axis driving mechanism is provided between the X-axis support and the X-axis sliding base plate, an annular horizontal conveyor is provided on the X-axis side of the X-axis support, and multiple turntables are evenly fixed on the upper surface of the conveyor belt of the annular horizontal conveyor.

2. The diesel engine lubricating oil circuit pressure detection device according to claim 1, characterized in that: The X-axis driving mechanism includes an X-axis lead screw supported on the upper surface of the X-axis support and a thread sleeve arranged on the X-axis lead screw, wherein the thread sleeve is connected and fixed to the bottom surface of the X-axis sliding bottom plate, and a manual rotating wheel is fixed to the outer end of the X-axis lead screw.

3. The diesel engine lubricating oil circuit pressure detection device according to claim 1, characterized in that: An X-direction sliding block is arranged on the bottom surface of the X-direction sliding bottom plate, and an X-direction track matched with the X-direction sliding block is arranged on the X-direction support.

4. The diesel engine lubricating oil circuit pressure detection device according to claim 1, characterized in that: An induction ring is arranged on the outer periphery of the fixing part of the turntable, and a proximity switch for cooperating with the induction ring is arranged on the upper surface of the X-axis support.

5. The diesel engine lubricating oil circuit pressure detection device according to claim 1, characterized in that: The circular horizontal conveyor consists of two parallel straight segments, a first U-shaped bend segment connected to the same end of the two straight segments, and a second U-shaped bend segment connected to the other same end of the two straight segments. There are four turntables, which are respectively arranged above the first U-shaped bend segment, the second U-shaped bend segment and the two straight segments. The second U-shaped bend segment is connected to the X-axis support and is a detection area. The first U-shaped bend segment is a discharge area, one of the straight segments is a discharge area, and the other straight segment is a transition area.

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