Constant temperature control device for oil way of common rail experiment table

Abstract

The utility model provides a common rail experiment table oil way constant temperature control device which comprises a temperature adjusting mechanism arranged on an experiment table body, the temperature adjusting mechanism comprises a cooling box communicated with an oil supply mechanism, a cooling snakelike coil pipe communicated with the oil supply mechanism is arranged in the cooling box, and an air cooler is arranged on the outer side of the cooling box. According to the utility model, the temperature of the oil entering the oil injector on the experiment table through the oil separator can be regulated and controlled through the temperature regulating mechanism, so that the performance test of the common rail oil injector can be carried out smoothly, and the problem that the oil path of the traditional common rail experiment table only depends on single air cooling for cooling is solved; the problems that shutdown is easily caused by too high diesel oil temperature due to long-time performance test, the test can be continued after the oil temperature returns to normal, the cooling mode is single, the temperature of oil liquid entering the oil separator cannot be controlled, and the performance test detection efficiency of the oil injector is greatly reduced are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil circuit constant temperature control equipment, and particularly relates to an oil circuit constant temperature control device for a common rail test bench. Background Art

[0002] The common rail injector test bench, that is, the function of the high-pressure common rail system controller is to imitate a diesel engine, and at the same time provide common rail system control signals such as Bosch, Delphi, Siemens, etc., to drive the high-pressure common rail oil pump and the high-pressure common rail injector to work. The user can set the driving signal parameters according to their actual situation and can save them in groups, which is convenient for maintenance personnel to judge and repair the working state of the high-pressure common rail system.

[0003] The traditional oil circuit of the common rail test bench only relies on single air cooling for cooling. It is very easy to cause shutdown due to the too high temperature of diesel oil caused by long-term performance tests. It is necessary to wait for the oil temperature to return to normal before continuing the experiment. The cooling method is relatively single, and the temperature of the oil entering the oil distributor cannot be controlled, which greatly reduces the efficiency of the performance test and detection of the injector. Content of the Utility Model

[0004] In view of this, the utility model provides an oil circuit constant temperature control device for a common rail test bench. The utility model can realize the regulation operation of the temperature of the oil entering the injector on the test bench through the oil distributor through the temperature adjustment mechanism, ensure the smooth progress of the performance test of the common rail injector, and solve the problems that the traditional oil circuit of the common rail test bench only relies on single air cooling for cooling, it is very easy to cause shutdown due to the too high temperature of diesel oil caused by long-term performance tests, it is necessary to wait for the oil temperature to return to normal before continuing the experiment, the cooling method is relatively single, and the temperature of the oil entering the oil distributor cannot be controlled, which greatly reduces the efficiency of the performance test and detection of the injector.

[0005] To solve the above technical problems, the utility model provides an oil circuit constant temperature control device for a common rail test bench. The oil circuit constant temperature control device is used to regulate the temperature of the oil entering the oil supply mechanism connected to the oil distributor on the test bench body. It includes a temperature adjustment mechanism arranged on the test bench body. The temperature adjustment mechanism includes a cooling box connected to the oil supply mechanism. A cooling serpentine coil connected to the oil supply mechanism is arranged in the cooling box. A cold air blower is arranged outside the cooling box. The utility model can greatly increase the flow path of the high-temperature oil through the cooling serpentine coil in the cooling box of the temperature adjustment mechanism, thereby improving its cooling speed. Moreover, it can cooperate with the cold air blower to assist in cooling and reducing the temperature of the cooling serpentine pipe and the high-temperature oil inside it, greatly improving the cooling efficiency, realizing the regulation operation of the temperature of the oil entering the injector on the test bench through the oil distributor, ensuring the smooth progress of the performance test of the common rail injector, and solving the problem that the oil circuit of the traditional common rail test bench only relies on single air cooling for temperature reduction, which easily leads to too high temperature of diesel due to long-term performance tests, resulting in shutdown, and it is necessary to wait for the oil temperature to return to normal before continuing the experiment. The cooling method is relatively single, and the temperature of the oil entering the oil distributor cannot be controlled, greatly reducing the efficiency of the performance test detection of the injector.

[0006] The oil supply mechanism includes a driving motor. The end of the output shaft of the driving motor is drivingly connected with a circulation pump. The inlet of the circulation pump is connected to the oil return port of the oil distributor through a first pipeline. The outlet of the circulation pump is connected to the liquid inlet of the cooling serpentine coil through a second pipeline. The liquid outlet of the cooling serpentine coil is connected to the oil inlet of the oil distributor through a third pipeline. The utility model can drive the circulation pump to work through the rotation of the output shaft of the driving motor, thereby realizing that the high-temperature oil in the oil distributor is pumped into the circulation pump through the oil return port and the first pipeline, and then discharged to the inlet of the cooling serpentine pipeline through the outlet of the circulation pump. Finally, its temperature is reduced to the normal working temperature through the cooling effect of the cooling serpentine pipeline, ensuring the normal temperature of the oil pumped into the oil distributor by the oil supply mechanism, and the operation is more convenient and efficient.

[0007] A temperature control switch is arranged on the third pipeline. The brand of the temperature control switch is: HCET, and the model is: KSD301. The utility model can accurately control the temperature of the oil flowing into the oil inlet of the oil distributor through the third pipeline, ensuring the constant temperature of the oil entering the oil distributor.

[0008] An oil pipe cooling sleeve is arranged outside the first pipeline. The oil pipe cooling sleeve is a high-temperature oil pipe protection sleeve made of silica gel fiberglass material, which can provide good heat insulation or cooling effects. In this way, it can avoid the too high oil temperature in the first pipeline from scalding the personnel who accidentally touch the first pipeline, and can also effectively protect the first pipeline.

[0009] A heat dissipation protection cover is provided on the outside of the air cooler. The housing of the air cooler is fixed to the housing of the cooling box by bolts. In the present utility model, the air cooler can be used to blow cold air towards the cooling serpentine pipe to efficiently cool the high-temperature oil inside, greatly improving the cooling efficiency of the cooling serpentine pipe, with better cooling effect and higher efficiency.

[0010] The drive motor is connected to the rotating shaft of the circulation pump in a belt drive manner. In the present utility model, by starting the drive motor, the pulley and the belt can be driven to rotate, and then the rotating shaft of the circulation pump can be driven to drive the impeller to rotate, realizing the circulation operation of the oil in the entire oil supply mechanism, making the operation more convenient.

[0011] The circulation pump is a high-temperature resistant impeller pump.

[0012] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0013] 1. In the present utility model, the cooling serpentine coil in the cooling box of the temperature adjustment mechanism can greatly increase the flow path of the high-temperature oil, thereby improving its cooling speed. Moreover, it can cooperate with the air cooler to assist in cooling the temperature of the cooling serpentine pipe and the high-temperature oil inside, greatly improving the cooling efficiency, realizing the temperature control operation of the oil entering the injector on the test bench through the oil distributor, ensuring the smooth progress of the performance test of the common rail injector, solving the problem that the traditional common rail test bench oil circuit relies only on single air cooling, and it is easy to cause the diesel oil temperature to be too high due to long-term performance tests, resulting in shutdown, and it is necessary to wait for the oil temperature to return to normal before continuing the experiment. The cooling method is relatively single, and the temperature of the oil entering the oil distributor cannot be controlled, greatly reducing the efficiency of the performance test detection of the injector.

[0014] 2. In the present utility model, the rotation of the output shaft of the drive motor can drive the circulation pump to work, thereby realizing that the high-temperature oil in the oil distributor is pumped into the circulation pump through the oil return port and the first pipeline, and then discharged into the inlet of the cooling serpentine pipe through the liquid outlet of the circulation pump. Finally, its temperature is reduced to the normal working temperature through the cooling effect of the cooling serpentine pipe, ensuring the normal temperature of the oil pumped into the oil distributor by the oil supply mechanism, and the operation is more convenient and efficient.

[0015] 3. In the present utility model, the temperature control switch can be used to accurately control the temperature of the oil flowing into the oil inlet of the oil distributor through the third pipeline, ensuring the constant temperature of the oil entering the oil distributor.

[0016] 4. In the present utility model, the air cooler can be used to blow cold air towards the cooling serpentine pipe to efficiently cool the high-temperature oil inside, greatly improving the cooling efficiency of the cooling serpentine pipe, with better cooling effect and higher efficiency. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the oil circuit constant temperature control device of the common rail test bench of the present utility model;

[0018] Figure 2 For the present utility model Figure 1 Enlarged view at position A in;

[0019] Figure 3 It is a rear view of the oil circuit constant temperature control device of the common rail test bench of the present utility model.

[0020] Description of the reference numerals: 100, test bench body; 200, oil distributor; 300, oil supply mechanism; 301, drive motor; 302, circulation pump; 303, first pipeline; 304, second pipeline; 305, third pipeline; 306, temperature control switch; 307, oil pipe cooling sleeve; 400, temperature adjustment mechanism; 401, cooling box; 402, cooling serpentine coil; 403, cooling fan. Detailed Implementation Modes

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will combine the appended drawings of the embodiments of the present utility model Figures 1-3 to clearly and completely describe the technical solutions of the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. Based on the described embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present utility model.

[0022] Such as Figures 1-3As shown: This embodiment provides a common rail test bench oil circuit constant temperature control device, the oil circuit constant temperature control device is used to control the temperature of the oil entering the oil supply mechanism 300 connected to the oil separator 200 on the test bench body 100, including a temperature adjustment mechanism 400 arranged on the test bench body 100, the temperature adjustment mechanism 400 includes a cooling box 401 connected to the oil supply mechanism 300, the cooling box 401 is provided with a cooling serpentine coil 402 connected to the oil supply mechanism 300, and the outside of the cooling box 401 is provided with a cooling fan 403. The utility model can greatly increase the path for the high-temperature oil to circulate through the cooling serpentine coil 402 in the cooling box 401 in the temperature adjustment mechanism 400, thereby playing a role in improving The problem of high cooling speed can be solved, and the air cooler 403 can be cooperated with to realize auxiliary cooling of the temperature of the cooling serpentine pipe and the high-temperature oil therein, thereby greatly improving the cooling efficiency, and realizing the temperature control operation of the oil in the injector on the test bench entering through the oil separator 200, thereby ensuring the smooth performance test of the common rail injector, and solving the problem that the traditional common rail test bench oil circuit only relies on a single air cooling, which is easy to cause shutdown due to excessive temperature of diesel caused by long-term performance test, and it is necessary to wait for the oil temperature to return to normal before continuing the experiment. The cooling method is relatively single, and the temperature of the oil entering the oil separator 200 cannot be controlled, which greatly reduces the efficiency of the performance test of the injector.

[0023] According to one embodiment of the utility model, Figures 1-3 As shown, the oil supply mechanism 300 includes a driving motor 301, and the output shaft end of the driving motor 301 is drivingly connected to a circulation pump 302. The circulation pump 302 is a high-temperature resistant impeller pump. The driving motor 301 is connected to the rotating shaft of the circulation pump 302 by belt transmission. The utility model can start the driving motor 301 to rotate with the pulley and the belt, and then drive the rotating shaft of the circulation pump 302 to rotate with the impeller, so as to realize the circulation operation of the oil in the entire oil supply mechanism 300, and the operation is more convenient. The inlet of the circulation pump 302 is connected to the oil return port of the oil separator 200 through the first pipeline 303, and the outlet of the circulation pump 302 is connected to the cooling serpentine coil 402. The liquid inlet is connected through the second pipe 304, and the liquid outlet of the cooling serpentine coil 402 is connected to the oil inlet of the oil separator 200 through the third pipe 305. The utility model can drive the circulation pump 302 to work by rotating the output shaft of the driving motor 301, and then the high-temperature oil in the oil separator 200 is pumped into the circulation pump 302 through the oil return port and the first pipe 303, and discharged into the inlet of the cooling serpentine pipe through the liquid outlet of the circulation pump 302. Finally, the temperature of the oil is reduced to the normal operating temperature through the cooling effect of the cooling serpentine pipe, thereby ensuring that the temperature of the oil pumped into the oil separator 200 by the oil supply mechanism 300 is normal, and the operation is more convenient and efficient.

[0024] According to another embodiment of the present utility model, as Figure 1 and Figure 2 shown, a temperature control switch 306 is provided on the third pipeline 305. The brand of the temperature control switch 306 is: HCET, and the model is: KSD301. The present utility model can accurately control the temperature of the oil flowing into the oil inlet of the oil separator 200 through the third pipeline 305, ensuring that the temperature of the oil entering the oil separator 200 is constant.

[0025] A tubing cooling sleeve 307 is provided outside the first pipeline 303. The tubing cooling sleeve 307 is a high-temperature tubing protection sleeve made of silica gel fiberglass material, which can provide good heat insulation or cooling effects. This can prevent the oil temperature in the first pipeline 303 from being too high and scalding personnel who accidentally touch the first pipeline 303, and can also effectively protect the first pipeline 303.

[0026] According to another embodiment of the present utility model, as Figure 1 and Figure 3 shown, a heat dissipation protective cover is provided outside the cooling fan 403. The housing of the cooling fan 403 is fixed to the housing of the cooling box 401 by bolts. The present utility model can make the cold air blown by the cooling fan 403 blow towards the cooling serpentine pipeline through the operation of the cooling fan 403, perform efficient cooling operation on the high-temperature oil therein, greatly improve the cooling efficiency of the cooling serpentine pipeline, and have better cooling effect and higher efficiency.

[0027] The usage method of the present utility model:

[0028] First of all, it should be clear that the oil circuit constant temperature control device involved in the present utility model is mainly used to regulate the temperature of the oil entering the oil supply mechanism 300 connected to the oil distributor 200 on the test bench body 100, so as to avoid the detection of the performance test of the injector being affected by too high oil temperature. Taking the working principle of the oil circuit constant temperature control device as an example, its usage method is elaborated in detail. When a performance test of the injector is required, the output shaft of the driving motor 301 is started to rotate. By starting the driving motor 301, the pulley and the belt rotate, and then the rotating shaft of the circulation pump 302 drives the impeller to rotate, realizing the circulation operation of the oil in the entire oil supply mechanism 300. The high-temperature oil passing through the injector will flow back into the oil distributor 200 and be pumped into the first pipeline 303 through the oil return port of the oil distributor 200. It is pumped into the circulation pump 302 through the first pipeline 303, and is discharged into the second pipeline 304 through the liquid outlet of the circulation pump 302. It flows into the inlet of the cooling serpentine pipeline through the second pipeline 304, and finally its temperature is reduced to the normal working temperature through the cooling effect of the cooling serpentine pipeline. Then it flows out from the liquid outlet of the cooling serpentine coil 402 into the third pipeline 305, and flows into the oil inlet of the oil distributor 200 through the third pipeline 305 to continue the circulation work. In this process, the temperature control switch 306 detects the temperature of the oil passing through the third pipeline 305 and feeds back its oil temperature information to the controller. The controller controls the start of the cooling fan according to the oil temperature information to participate in the efficient cooling operation of the high-temperature oil in the cooling serpentine pipeline, making the operation more convenient. The present utility model can greatly increase the flow path of the high-temperature oil through the cooling serpentine coil 402 in the cooling box 401 in the temperature adjustment mechanism 400, thereby improving its cooling speed. Moreover, it can cooperate with the cooling fan 403 to assist in cooling the temperature of the cooling serpentine pipeline and the high-temperature oil inside it, greatly improving the cooling efficiency, realizing the regulation operation of the temperature of the oil entering the injector on the test bench through the oil distributor 200, ensuring the smooth progress of the performance test of the common rail injector, and solving the problem that the oil circuit of the traditional common rail test bench only relies on single air cooling for cooling, and it is very easy to cause the diesel oil temperature to be too high due to long-term performance tests, resulting in shutdown, and it is necessary to wait for the oil temperature to return to normal before continuing the experiment. The cooling method is relatively single, and the temperature of the oil entering the oil distributor 200 cannot be controlled, greatly reducing the detection efficiency of the performance test of the injector.

[0029] In addition, it should be noted that in the description of the present utility model, unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] The above is the preferred embodiment of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle described in the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A common rail test bench oil circuit constant temperature control device, the oil circuit constant temperature control device is used to regulate the temperature of the oil entering the oil supply mechanism (300) connected to the oil distributor (200) on the test bench body (100), and is characterized in that: It includes a temperature adjustment mechanism (400) provided on the experimental bench body (100). The temperature adjustment mechanism (400) includes a cooling tank (401) communicated with the oil supply mechanism (300). A cooling serpentine coil (402) communicated with the oil supply mechanism (300) is arranged in the cooling tank (401). An air cooler (403) is arranged outside the cooling tank (401).

2. The common rail test bench oil circuit constant temperature control device according to claim 1, characterized in that: The oil supply mechanism (300) includes a driving motor (301). The end of the output shaft of the driving motor (301) is drivingly connected with a circulating pump (302). The inlet of the circulating pump (302) is communicated with the oil return port of the oil distributor (200) through a first pipeline (303). The outlet of the circulating pump (302) is communicated with the liquid inlet of the cooling serpentine coil (402) through a second pipeline (304). The liquid outlet of the cooling serpentine coil (402) is communicated with the oil inlet of the oil distributor (200) through a third pipeline (305).

3. The fuel injection rail test bench oil circuit constant temperature control device according to claim 2, characterized in that: A temperature control switch (306) is arranged on the third pipeline (305).

4. The common rail test bench oil circuit constant temperature control device according to claim 3, characterized in that: An oil pipe cooling sleeve (307) is arranged outside the first pipeline (303).

5. The oil circuit constant temperature control device of the common rail test bench according to claim 4, characterized in that: A heat dissipation protection cover is arranged outside the air cooler (403). The housing of the air cooler (403) is fixed on the housing of the cooling tank (401) by bolts.

6. The common rail test bench oil circuit constant temperature control device according to claim 5, characterized in that: The driving motor (301) is drivingly connected with the rotating shaft of the circulating pump (302) by means of belt transmission.

7. The common rail test bench oil circuit constant temperature control device according to claim 6, characterized in that: The circulating pump (302) is a high-temperature resistant impeller pump.

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