CN217483861U - Portable engine working condition comprehensive monitoring device - Google Patents

Abstract

The utility model discloses a portable engine operating mode integrated monitoring device relates to environmental protection trade compression ignition, spark-ignition automobile engine tail gas monitoring technology field and includes that engine, absorption fix the vibrating tachometric transducer on the engine and peg graft the downthehole oil temperature sensor of oil scale on the engine, its characterized in that: further comprising: the exhaust pipe, exhaust pipe fixed mounting is on the engine, and the tip fixedly connected with tail pipe of exhaust pipe, sleeve pipe, the sleeve pipe cover is established on the tail pipe, sheathed tube tip fixedly connected with is used for measuring the monitoring subassembly of oil temperature and rotational speed, centre gripping subassembly fixed connection is on the sleeve pipe for fix the sleeve pipe centre gripping on the tail pipe. The utility model discloses an above-mentioned isotructure's cooperation has realized monitoring engine each operating mode through a plurality of sensors, ensures that the operating mode of engine can satisfy in GB3847-2018, GB36886-2018 to engine emission pollutants measuring requirement.

Description

Portable engine working condition comprehensive monitoring device

Technical Field

The utility model relates to an environmental protection trade compression ignition formula, spark-ignition formula automobile engine tail gas monitoring technology field specifically are portable engine operating mode integrated monitoring device.

Background

According to GB3847-2018 and GB36886-2018 standards, exhaust pollutants of compression ignition engines and ignition engines need to be detected, and emission limit values, measurement methods and test methods are specified in national standards.

The test method (free acceleration method) in appendix A of GB3847-2018 monitors and measures the working conditions (rotating speed and oil temperature) of the automobile engine during the test: in the prior art, as shown in the figure I, an oil temperature sensor is directly inserted into an oil gauge hole of the engine to directly measure the oil temperature.

In the prior art, there are two methods for measuring the rotating speed, as shown in the figure I, the first method is to use a vibration type sensor to be attached to an engine body to detect and measure the rotating speed of the engine; the second type is that the vehicle-mounted OBD is accessed to read the engine speed. The prior art has the following defects:

1. oil temperature measurement, some vehicles can not insert the oil temperature sensor into an engine oil scale hole because of the problems of engine design structure and the like, so the oil temperature sensor can not be used.

2. Vibration type rotating speed measurement is carried out, and rotating speed measurement errors of some vehicles are large due to the problems of engine shock absorption, resonance and the like.

OBD type rotation speed measurement, and partial vehicles (especially vehicles before national four emission levels) are not monitored by OBD and are not provided with OBD access ports, so that the OBD access type rotation speed sensor cannot be used

4. The measurement of the rotating speed and the oil temperature is only carried out by a single sensor, if the error of the sensor is overlarge, the measurement data is also distorted, and finally the exhaust measurement data is invalid, so that the improvement is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a portable engine operating mode integrated monitoring device possesses and monitors engine operating mode through a plurality of sensors, ensures that the operating mode of engine can satisfy in GB3847-2018, GB36886-2018 to engine emission pollutants measuring requirement, has solved the problem of proposing in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: portable engine operating mode integrated monitoring device, including the engine, adsorb vibrating speed sensor who fixes on the engine and peg graft the downthehole oil temperature sensor of oil dipstick on the engine, its characterized in that: further comprising:

the exhaust pipe is fixedly arranged on the engine, and the end part of the exhaust pipe is fixedly connected with a tail pipe;

the tail pipe is sleeved with the sleeve, and the end part of the sleeve is fixedly connected with a monitoring assembly for measuring oil temperature and rotating speed;

and the clamping assembly is fixedly connected to the casing and is used for clamping and fixing the casing on the tail pipe.

Preferably, the monitoring assembly comprises an air outlet pipe fixedly connected to the end part of the sleeve, and a flow sensor and a temperature sensor are fixedly connected to the air outlet pipe from left to right in sequence.

Preferably, the centre gripping subassembly includes the backup pad of fixed connection on both sides about the sleeve pipe, internal thread hole has been seted up in the backup pad, internal thread hole female connection has the screw rod, the bottom of screw rod is rotated through the bearing housing and is connected with arc splint.

Preferably, fixedly connected with is used for carrying out spacing telescopic link to arc splint between backup pad and the arc splint.

Preferably, the inner wall of the casing is fixedly connected with a wedge-shaped pipe which is abutted against and matched with the upper inclined surface of the tail pipe.

Preferably, the wedge-shaped pipe is fixedly connected with an inserting pipe used for being inserted into the tail pipe.

Compared with the prior art, the beneficial effects of the utility model are as follows:

firstly, an oil temperature sensor is directly inserted into an engine oil scale hole to directly measure the oil temperature at the front section of an engine, a vibration type sensor is adsorbed on an engine body to measure the rotating speed of the engine, and a wind speed/flow sensor, a temperature sensor and other sensors are additionally arranged at the rear end of the engine and behind an engine exhaust pipe to monitor the exhaust working condition of the engine.

Secondly, monitoring all working conditions of the engine through a plurality of sensors, and comparing and analyzing data obtained by monitoring, so that the working conditions of the engine can be monitored more accurately, for example, the rotating speed corresponds to the exhaust air speed/flow, and the oil temperature corresponds to the exhaust temperature. The accuracy of the monitoring data is ensured through a plurality of groups of data of the sensors, and then the relevance and the effectiveness of each data are analyzed through special system software, so that the accuracy and the reliability of the final tail gas detection data are ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a middle vibration type rotation speed sensor and an oil temperature sensor according to the present invention;

FIG. 2 is a schematic view of the present invention;

FIG. 3 is a schematic structural view of the sleeve and the clamping assembly of the present invention;

FIG. 4 is a schematic structural view of the tail pipe and the casing pipe of the present invention after being separated;

fig. 5 is a cross-sectional view of the present invention.

In the figure: 1. an engine; 2. a vibration type rotation speed sensor; 3. an oil temperature sensor; 4. an exhaust pipe; 5. a tail pipe; 6. a sleeve; 7. an air outlet pipe; 8. a flow sensor; 9. a temperature sensor; 10. a support plate; 11. a screw; 12. an arc-shaped splint; 13. a telescopic rod; 14. a wedge-shaped tube; 15. and (4) inserting the tube.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1 to 5, the present invention provides a technical solution: portable engine operating mode integrated monitoring device, including engine 1, adsorb vibrating tachometric sensor 2 of fixing on engine 1 and peg graft at the downthehole oil temperature sensor 3 of oil gauge on engine 1, still include:

the exhaust pipe 4 is fixedly arranged on the engine 1, and the tail pipe 5 is fixedly connected to the end part of the exhaust pipe 4;

the sleeve 6 is sleeved on the tail pipe 5, and the end part of the sleeve 6 is fixedly connected with a monitoring assembly for measuring the oil temperature and the rotating speed;

and the clamping assembly is fixedly connected to the casing 6 and is used for clamping and fixing the casing 6 on the tail pipe 5.

The monitoring component comprises an air outlet pipe 7 fixedly connected to the end part of the sleeve 6, and a flow sensor 8 and a temperature sensor 9 are fixedly connected to the air outlet pipe 7 from left to right in sequence.

The rotating speed and the oil temperature of the engine are measured by a wind speed/flow sensor and a temperature sensor 9, and the steps are as follows:

1. the vehicle or engine to be detected is parked stationary in a safe area.

2. The oil temperature sensor 3 is inserted into the engine oil gauge hole.

3. The vibration probe of the vibration type rotation speed sensor 2 is adsorbed on the engine body.

4. A special tool consisting of a wind speed/flow sensor and a temperature sensor 9 is assembled on the tail pipe 5 on the exhaust pipe 4.

5. And starting switches and monitoring software of all the sensors.

6. And carrying out self-checking on each sensor until the self-checking is qualified.

7. The engine 1 is started, the engine 1 is preheated to the oil temperature of 80 ℃, and then the engine 1 is stabilized in an idling state.

8. And recording data such as the rotating speed, the engine oil temperature, the exhaust air speed/flow, the exhaust temperature and the like of the engine under the idle working condition of the engine through monitoring software.

9. According to the operation requirement in the GB3847-2018 standard, within 1 second, the accelerator pedal of the vehicle is stepped to the bottom, so that the rotating speed of the engine reaches the rated rotating speed and is kept for 5-10 seconds.

10. And recording data such as the rotating speed, the engine oil temperature, the exhaust air speed/flow, the exhaust temperature and the like of the engine under the working condition of the rated rotating speed of the engine through monitoring software.

11. And analyzing the measured data under the working condition of the rated rotating speed through special software, and judging the accuracy of the data.

The centre gripping subassembly includes backup pad 10 of fixed connection on both sides about sleeve pipe 6, has seted up the internal thread hole on the backup pad 10, and internal thread hole female connection has screw rod 11, and the bottom of screw rod 11 is rotated through the bearing housing and is connected with arc splint 12.

When a special tool composed of the wind speed/flow sensor and the temperature sensor 9 is assembled on the tail pipe 5 on the exhaust pipe 4, the sleeve 6 is sleeved on the tail pipe 5, then the screw rod 11 is rotated, the screw rod 11 is rotated due to threaded connection of the screw rod 11 and the internal threaded hole, the screw rod 11 can move while rotating, the arc-shaped clamping plate 12 can be moved downwards due to the fact that the screw rod 11 is rotatably connected with the arc-shaped clamping plate 12, and the two arc-shaped clamping plates 12 can be clamped and fixed on the tail pipe 5 conveniently.

Fixedly connected with is used for carrying out spacing telescopic link 13 to arc splint 12 between backup pad 10 and the arc splint 12, and telescopic link 13 has injectd the movement track of arc splint 12 for arc splint 12 can be steadily smooth and easy reciprocating, makes things convenient for two arc splint 12 centre grippings to fix on tail pipe 5.

The inner wall fixedly connected with of sleeve 6 with tail pipe 5 on the inclined plane butt and the wedge pipe 14 of adaptation, when sleeve 6 cover was established on tail pipe 5, the inclined plane on the wedge pipe 14 can with the mutual butt of the inclined plane on tail pipe 5 for when sleeve 6 overlaps and establishes on tail pipe 5, wedge pipe 14 has played the sealed effect of butt to tail pipe 5.

The wedge-shaped pipe 14 is internally and fixedly connected with an inserting pipe 15 which is inserted in the tail pipe 5, when the sleeve pipe 6 is sleeved on the tail pipe 5, the inserting pipe 15 can be inserted into the tail pipe 5, the contact part of the tail pipe 5 and the sleeve pipe 6 can be better sealed under the matching of the wedge-shaped pipe 14, the tail gas can be conveniently discharged from the gas outlet pipe 7, and the tail gas passes through the wind speed/flow sensor and the temperature sensor 9.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. Portable engine operating mode integrated monitoring device, including engine (1), adsorb vibrating tachometric sensor (2) of fixing on engine (1) and peg graft at downthehole oil temperature sensor (3) of oil dipstick on engine (1), its characterized in that: further comprising:

the exhaust pipe (4), the exhaust pipe (4) is fixedly installed on the engine (1), and the end part of the exhaust pipe (4) is fixedly connected with a tail pipe (5);

the oil temperature and rotating speed monitoring device comprises a sleeve (6), wherein the sleeve (6) is sleeved on a tail pipe (5), and the end part of the sleeve (6) is fixedly connected with a monitoring assembly for measuring oil temperature and rotating speed;

the clamping assembly is fixedly connected to the sleeve (6) and used for clamping and fixing the sleeve (6) on the tail pipe (5).

2. The portable engine operating condition comprehensive monitoring device according to claim 1, characterized in that: the monitoring assembly comprises an air outlet pipe (7) fixedly connected to the end of the sleeve (6), and a flow sensor (8) and a temperature sensor (9) are fixedly connected to the air outlet pipe (7) from left to right in sequence.

3. The portable engine operating condition comprehensive monitoring device according to claim 1, characterized in that: the centre gripping subassembly includes backup pad (10) of fixed connection on both sides about sleeve pipe (6), internal thread hole has been seted up on backup pad (10), internal thread hole female connection has screw rod (11), the bottom of screw rod (11) is rotated through the bearing housing and is connected with arc splint (12).

4. The portable engine operating condition comprehensive monitoring device according to claim 3, characterized in that: fixedly connected with is used for carrying on spacing telescopic link (13) to arc splint (12) between backup pad (10) and arc splint (12).

5. The portable engine operating condition comprehensive monitoring device according to claim 2, characterized in that: the inner wall of the sleeve (6) is fixedly connected with a wedge-shaped pipe (14) which is abutted to and matched with the upper inclined surface of the tail pipe (5).

6. The portable engine operating condition comprehensive monitoring device according to claim 5, characterized in that: the wedge-shaped pipe (14) is internally and fixedly connected with an inserting pipe (15) which is inserted in the tail pipe (5).

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