Intelligent device for detecting automobile connecting rod with variable compression ratio

Abstract

The utility model provides an intelligent device for detecting a variable compression ratio automobile connecting rod. The intelligent device for detecting the variable-compression-ratio automobile connecting rod comprises a bottom plate, wherein the top of the bottom plate is fixedly provided with an L-shaped back plate; the vertical plate is fixedly mounted on the bottom plate; the hydraulic cylinder is fixedly mounted on the L-shaped back plate; the rectangular plate is rotationally mounted on an output rod of the hydraulic cylinder; the monitoring mechanism is arranged on the rectangular plate and used for monitoring tensile force or extrusion force borne by the automobile connecting rod; and the top positioning mechanism is arranged on the monitoring mechanism and is used for positioning the automobile connecting rod from the top. The intelligent device for detecting the automobile connecting rod with the variable compression ratio has the advantages that the automobile connecting rod can be conveniently fixed, the extrusion resistance and the stretching resistance of the automobile connecting rod can be detected, the length of the automobile connecting rod can be detected, and the smoothness of the two faces of the automobile connecting rod can be detected.

Description

Technical Field

[0001] This utility model relates to the field of automotive testing technology, and in particular to an intelligent device for detecting automotive connecting rods with variable compression ratio. Background Technology

[0002] Variable compression ratio is a technology that dynamically adjusts the compression ratio of an internal combustion engine, improving fuel efficiency under different load conditions. A lower compression ratio is needed under high load, while a higher compression ratio is needed under low load. The purpose of variable compression ratio is to improve the fuel economy of turbocharged engines. In turbocharged engines, the compression ratio is lower than that of naturally aspirated engines to prevent knocking. However, at low boost pressures, thermal efficiency decreases, leading to reduced fuel economy. Especially in turbocharged engines, due to the slow increase in boost pressure, torque also increases slowly under low compression ratio conditions, creating the so-called boost lag phenomenon. That is, at low engine speeds, the boost effect is delayed; the turbocharger system only kicks in after the engine accelerates to a certain speed.

[0003] To address this issue, variable compression ratio is an important method. Specifically, under low-load conditions with low boost pressure, the compression ratio is increased to match or exceed that of a naturally aspirated engine; conversely, under high-load conditions with high boost pressure, the compression ratio is appropriately reduced. In other words, the compression ratio is continuously adjusted according to load changes to improve thermal efficiency across the entire operating range from low to high loads. Since the compressive and tensile forces on the connecting rods in a variable compression ratio engine vary with the compression ratio, the connecting rod's compressive and tensile strength is crucial. During the production of variable compression ratio engines, the compressive and tensile strength of the connecting rods needs to be tested.

[0004] However, existing intelligent equipment for detecting variable compression ratio automotive connecting rods is not convenient for fixing the connecting rods and for detecting the smoothness of the surfaces at various locations on the connecting rods, making it inconvenient to use.

[0005] Therefore, it is necessary to provide an intelligent device for detecting variable compression ratio automotive connecting rods to solve the above-mentioned technical problems. Utility Model Content

[0006] To address the technical problems of existing intelligent devices for detecting variable compression ratio automotive connecting rods, which are inconvenient for fixing the connecting rods and for detecting the smoothness of the surfaces at various locations on the connecting rods, this utility model provides an intelligent device for detecting variable compression ratio automotive connecting rods.

[0007] The intelligent device for detecting variable compression ratio automotive connecting rods provided by this utility model includes: a base plate with an L-shaped backplate fixedly mounted on top; a vertical plate fixedly mounted on the base plate; a hydraulic cylinder fixedly mounted on the L-shaped backplate; a rectangular plate rotatably mounted on the output rod of the hydraulic cylinder; a monitoring mechanism disposed on the rectangular plate for monitoring the tensile or compressive force borne by the automotive connecting rod; a top positioning mechanism disposed on the monitoring mechanism for positioning the automotive connecting rod from the top; a bottom positioning mechanism disposed on the base plate for positioning the automotive connecting rod from the bottom; a direction adjustment mechanism disposed on the base plate for adjusting the direction of the automotive connecting rod; and a smoothness detection mechanism disposed on the vertical plate for detecting the smoothness of the surface of the automotive connecting rod.

[0008] Preferably, the monitoring mechanism includes: a plurality of sliding rods slidably mounted on the rectangular plate; a plurality of springs slidably sleeved on the plurality of sliding rods; a plurality of limiting blocks fixedly mounted on the top ends of the plurality of sliding rods; a plurality of compression monitoring sensors slidably sleeved on the plurality of sliding rods; and a plurality of tension monitoring sensors slidably sleeved on the plurality of sliding rods.

[0009] Preferably, the top positioning mechanism includes: a top L-shaped plate fixedly installed at the bottom end of the plurality of sliding rods; and a top positioning post fixedly installed on the top L-shaped plate.

[0010] Preferably, the bottom positioning mechanism includes: a support shaft rotatably mounted on the base plate; a bottom L-shaped plate fixedly mounted on the top end of the support shaft; and a bottom positioning post fixedly mounted on the inner wall of the bottom L-shaped plate.

[0011] Preferably, the direction adjustment mechanism includes: a servo motor fixedly mounted on the base plate and having a drive gear; and a driven gear fixedly sleeved on the support shaft and meshing with the drive gear.

[0012] Preferably, a laser rangefinder sensor transmitter is provided at the bottom of the rectangular plate, and a laser rangefinder sensor receiver is provided at the top of the base plate.

[0013] Preferably, the smoothness detection mechanism includes: an electric slide rail fixedly installed on the vertical plate; and a data acquisition probe fixedly installed on the output block of the electric slide rail.

[0014] Preferably, both the top and bottom positioning posts are provided with screw holes, and both the top and bottom positioning posts are provided with baffles. Bolts are provided on both baffles, and the two bolts are respectively threaded to the inner walls of the two screw holes. A controller is provided on the L-shaped back plate, and the controller is electrically connected to the hydraulic cylinder, multiple extrusion monitoring sensors, multiple tension monitoring sensors, servo motor, laser rangefinder transmitter, laser rangefinder receiver, electric slide rail, and acquisition probe.

[0015] Compared with related technologies, the intelligent device for detecting variable compression ratio automotive connecting rods provided by this utility model has the following beneficial effects:

[0016] This invention provides an intelligent device for testing automotive connecting rods with variable compression ratios. The device performs compression or tensile tests on the connecting rod by extending and retracting a hydraulic cylinder output rod. A monitoring mechanism monitors the compressive or tensile forces acting on the connecting rod, thus testing its compression and tensile resistance. A top positioning machine and a bottom positioning mechanism work together to facilitate the installation and positioning of the connecting rod. A direction adjustment mechanism allows for adjustment of the connecting rod's direction, enabling the acquisition probe to detect the roughness of both sides of the connecting rod. A smoothness detection mechanism also detects the roughness of both sides of the connecting rod. During compression, multiple compression monitoring sensors monitor the compressive force acting on the connecting rod; during tensile testing, multiple tensile monitoring sensors monitor the tensile force acting on the connecting rod. Monitoring is performed to test the extrusion and tensile properties of the automotive connecting rod. The connecting rod is positioned from the top via a top positioning post and from the bottom via a bottom positioning post. A servo motor drives a bottom L-shaped plate to rotate via a drive gear and a driven gear. The bottom L-shaped plate, in turn, drives the connecting rod to rotate via the bottom positioning post. This allows the acquisition probe to detect the roughness of both sides of the connecting rod. The length of the connecting rod can be detected by the combination of a laser rangefinder transmitter and receiver. An electric slide rail allows the acquisition probe to move up and down, enabling the detection of the smoothness of the connecting rod's surface. Two baffles and two bolts secure the connecting rod to the top and bottom positioning posts. The device can be operated and controlled by a controller. Attached Figure Description

[0017] Figure 1 A schematic diagram of a preferred embodiment of the intelligent device for detecting variable compression ratio automotive connecting rods provided by this utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the front view of the structure;

[0019] Figure 3 for Figure 1 A three-dimensional assembly structure diagram of the bottom L-shaped plate and bottom positioning column;

[0020] Figure 4 for Figure 1 The enlarged schematic diagram of part A shown in the figure.

[0021] Labels in the diagram: 1. Base plate; 2. L-shaped back plate; 3. Vertical plate; 4. Hydraulic cylinder; 5. Rectangular plate; 6. Sliding rod; 7. Spring; 8. Limiting block; 9. Extrusion monitoring sensor; 10. Tension monitoring sensor; 11. Top L-shaped plate; 12. Top positioning post; 13. Support shaft; 14. Bottom L-shaped plate; 15. Bottom positioning post; 16. Servo motor; 17. Driving gear; 18. Driven gear; 19. Laser rangefinder transmitter; 20. Laser rangefinder receiver; 21. Electric slide rail; 22. Acquisition probe; 23. Baffle; 24. Bolt; 25. Controller. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please refer to the following: Figure 1-4 ,in, Figure 1 A schematic diagram of a preferred embodiment of the intelligent device for detecting variable compression ratio automotive connecting rods provided by this utility model; Figure 2 for Figure 1 A schematic diagram of the front view of the structure; Figure 3 for Figure 1 A three-dimensional assembly structure diagram of the bottom L-shaped plate and bottom positioning column; Figure 4 for Figure 1 The diagram shows an enlarged view of part A. The intelligent device for detecting variable compression ratio automotive connecting rods includes: a base plate 1 with an L-shaped backplate 2 fixedly mounted on top; a vertical plate 3 fixedly mounted on the base plate 1; a hydraulic cylinder 4 fixedly mounted on the L-shaped backplate 2; a rectangular plate 5 rotatably mounted on the output rod of the hydraulic cylinder 4; a monitoring mechanism mounted on the rectangular plate 5 for monitoring the tensile or compressive force borne by the automotive connecting rod; a top positioning mechanism mounted on the monitoring mechanism for positioning the automotive connecting rod from the top; a bottom positioning mechanism mounted on the base plate 1 for positioning the automotive connecting rod from the bottom; a direction adjustment mechanism mounted on the base plate 1 for adjusting the direction of the automotive connecting rod; and a smoothness detection mechanism mounted on the vertical plate 3 for detecting the smoothness of the automotive connecting rod surface.

[0024] The monitoring mechanism includes: multiple sliding rods 6 slidably mounted on the rectangular plate 5; multiple springs 7 slidably sleeved on the multiple sliding rods 6 respectively; multiple limiting blocks 8 fixedly mounted on the top ends of the multiple sliding rods 6 respectively; multiple compression monitoring sensors 9 slidably sleeved on the multiple sliding rods 6 respectively; and multiple tension monitoring sensors 10 slidably sleeved on the multiple sliding rods 6 respectively.

[0025] The top positioning mechanism includes: a top L-shaped plate 11 fixedly installed at the bottom of the plurality of sliding rods 6; and a top positioning post 12 fixedly installed on the top L-shaped plate 11.

[0026] The bottom positioning mechanism includes: a support shaft 13 rotatably mounted on the base plate 1; a bottom L-shaped plate 14 fixedly mounted on the top end of the support shaft 13; and a bottom positioning post 15 fixedly mounted on the inner wall of the bottom L-shaped plate 14.

[0027] The direction adjustment mechanism includes: a servo motor 16 fixedly mounted on the base plate 1 and equipped with a drive gear 17; and a driven gear 18 fixedly sleeved on the support shaft 13 and meshing with the drive gear 17.

[0028] The bottom of the rectangular plate 5 is provided with a laser rangefinder sensor transmitter 19, and the top of the base plate 1 is provided with a laser rangefinder sensor receiver 20.

[0029] The smoothness detection mechanism includes: an electric slide rail 21 fixedly installed on the vertical plate 3; and a data acquisition probe 22 fixedly installed on the output block of the electric slide rail 21.

[0030] Both the top positioning post 12 and the bottom positioning post 15 are provided with screw holes, and both the top positioning post 12 and the bottom positioning post 15 are provided with baffles 23. Both baffles 23 are provided with bolts 24, and the two bolts 24 are respectively threaded to the inner walls of the two screw holes. The L-shaped back plate 2 is provided with a controller 25, and the controller 25 is electrically connected to the hydraulic cylinder 4, multiple compression monitoring sensors 9, multiple tension monitoring sensors 10, servo motor 16, laser rangefinder transmitter 19, laser rangefinder receiver 20, electric slide rail 21 and acquisition probe 22.

[0031] The working principle of the intelligent device for detecting variable compression ratio automotive connecting rods provided by this utility model is as follows:

[0032] In use, the car connecting rod is fitted onto the top positioning post 12 and the bottom positioning post 15, and two baffles 23 are placed on the top positioning post 12 and the bottom positioning post 15. Two bolts 24 are inserted into the holes on the two baffles 23 and threadedly connected to the two screw holes, thereby fixing the two baffles 23 onto the top positioning post 12 and the bottom positioning post 15 respectively, thus installing and positioning the car connecting rod. The car connecting rod can be subjected to compression or tension tests by extending and retracting the output rod of the hydraulic cylinder 4. During compression, multiple compression monitoring sensors 9 can monitor the compression force borne by the car connecting rod, and during tension, multiple tension monitoring sensors 10 can monitor the tension force borne by the car connecting rod, thereby testing the compression resistance and tensile resistance of the car connecting rod.

[0033] The length of the car connecting rod can be detected by the cooperation of the laser rangefinder transmitter 19 and the laser rangefinder receiver 20. The acquisition probe 22 can be moved up and down by the electric slide rail 21. The smoothness of the car connecting rod surface can be detected by the acquisition probe 22. The servo motor 16 is started. The servo motor 16 drives the bottom L-shaped plate 14 to rotate through the drive gear 17 and the driven gear 18. The bottom L-shaped plate 14 drives the car connecting rod to rotate through the bottom positioning post 15, so that the acquisition probe 22 can detect the roughness of both sides of the car connecting rod.

[0034] Compared with related technologies, the intelligent device for detecting variable compression ratio automotive connecting rods provided by this utility model has the following beneficial effects:

[0035] This invention provides an intelligent device for testing automotive connecting rods with variable compression ratios. The extension and retraction of the output rod of the hydraulic cylinder 4 allows for compression or tensile testing of the connecting rod. A monitoring mechanism monitors the compressive or tensile forces borne by the connecting rod, thus testing its compression and tensile resistance. The top and bottom positioning mechanisms work together to facilitate convenient installation and positioning of the connecting rod. A direction adjustment mechanism allows for adjustment of the connecting rod's direction, enabling the acquisition probe 22 to detect the roughness of both sides of the connecting rod. A smoothness detection mechanism also detects the roughness of both sides of the connecting rod. During compression, multiple compression monitoring sensors 9 monitor the compressive force borne by the connecting rod; during tensile testing, multiple tensile monitoring sensors 10 monitor the tensile force borne by the connecting rod, thereby assessing the connecting rod's compression resistance. The device is designed to perform tests on tensile strength and other properties. The top positioning post 12 positions the connecting rod from the top, and the bottom positioning post 15 positions it from the bottom. A servo motor 16 drives the bottom L-shaped plate 14 to rotate via the drive gear 17 and driven gear 18. The bottom L-shaped plate 14, in turn, drives the connecting rod to rotate via the bottom positioning post 15. This allows the acquisition probe 22 to detect the roughness of both sides of the connecting rod. The length of the connecting rod can be detected by the cooperation of the laser rangefinder transmitter 19 and the laser rangefinder receiver 20. The acquisition probe 22 can move up and down via the electric slide rail 21, allowing it to detect the smoothness of the connecting rod surface. The connecting rod is fixed to the top positioning post 12 and the bottom positioning post 15 by two baffles 23 and two bolts 24. The device can be operated and controlled by the controller 25.

[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An intelligent device for detecting a variable compression ratio automobile connecting rod, characterized in that: include: A bottom plate with an L-shaped back plate fixed on the top; A vertical plate fixedly mounted on the base plate; A hydraulic cylinder fixedly mounted on the L-shaped back plate; Rotating a rectangular plate mounted on the output rod of the hydraulic cylinder; A monitoring mechanism disposed on the rectangular plate, the monitoring mechanism being used to monitor the tension or compression force borne by the automobile connecting rod; A top positioning mechanism disposed on the monitoring mechanism, the top positioning mechanism being used to position the automobile connecting rod from the top; A bottom positioning mechanism disposed on the bottom plate, the bottom positioning mechanism being used to position the automobile connecting rod from the bottom; A direction adjustment mechanism is arranged on the bottom plate, and the direction adjustment mechanism is used to adjust the direction of the automobile connecting rod; A smoothness detection mechanism is arranged on the vertical plate, and the smoothness detection mechanism is used to detect the smoothness of the surface of the automobile connecting rod.

2. The intelligent device for detecting a variable compression ratio automobile connecting rod according to claim 1, characterized in that: The monitoring agencies include: A plurality of sliding rods slidably mounted on the rectangular plate; A plurality of springs slidably sleeved on the plurality of sliding rods respectively; A plurality of limit blocks respectively fixedly mounted on top ends of the plurality of sliding rods; A plurality of extrusion monitoring sensors are respectively slidably mounted on the plurality of sliding rods; A plurality of stretch monitoring sensors are respectively slidably mounted on the plurality of sliding rods.

3. The intelligent device for detecting a variable compression ratio automobile connecting rod according to claim 2, characterized in that: The top positioning mechanism comprises: A top L-shaped plate fixedly mounted on the bottom ends of the plurality of sliding rods; A top positioning column is fixedly mounted on the top L-shaped plate.

4. The intelligent device for detecting a variable compression ratio automobile connecting rod according to claim 3, characterized in that: The bottom positioning mechanism comprises: Rotating a support shaft mounted on the base plate; A bottom L-shaped plate fixedly mounted on the top end of the support shaft; A bottom positioning column is fixedly mounted on the inner wall of the bottom L-shaped plate.

5. The intelligent device for detecting a variable compression ratio automobile connecting rod according to claim 4, characterized in that: The direction adjustment mechanism comprises: A servo motor fixedly mounted on the bottom plate and having a driving gear; A driven gear is fixedly sleeved on the support shaft and meshed with the driving gear.

6. The intelligent device for detecting a variable compression ratio automobile connecting rod according to claim 5, characterized in that: A laser distance measuring sensor transmitting end is arranged at the bottom of the rectangular plate, and a laser distance measuring sensor receiving end is arranged at the top of the bottom plate.

7. The intelligent device for detecting a variable compression ratio automobile connecting rod according to claim 6, characterized in that: The smoothness detection mechanism comprises: An electric slide rail fixedly mounted on the vertical plate; A collection probe is fixedly mounted on the output block of the electric slide rail.

8. The intelligent device for detecting a variable compression ratio automobile connecting rod according to claim 7, characterized in that: Screw holes are provided on the top positioning column and the bottom positioning column, baffles are provided on the top positioning column and the bottom positioning column, bolts are provided on the two baffles, and the two bolts are respectively threadedly connected to the inner walls of the two screw holes, and a controller is provided on the L-shaped back plate, and the controller is electrically connected to the hydraulic cylinder, multiple extrusion monitoring sensors, multiple stretching monitoring sensors, a servo motor, a laser ranging sensor transmitting end, a laser ranging sensor receiving end, an electric slide rail and a collection probe.

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