Detection device for variable compression ratio engine connecting rod small end inclined plane

Abstract

The utility model relates to the technical field of detection devices, and discloses a detection device for a variable compression ratio engine connecting rod small end inclined plane, which comprises a bottom frame, a side frame is arranged on the right side of the upper end of the bottom frame, two rotating plates are arranged in the side frame through a springback rotating shaft, and linkage gears are arranged at the right ends in the rotating plates. The two linkage gears are connected in a meshed mode, and a pulley is rotationally installed at the left end of the interior of the rotating plate. The top frame is arranged at the upper end of the rotating plate, and an angle measuring instrument is installed at the upper end of the top frame; and the inner groove is formed in the left side in the bottom frame, a baffle is slidably installed in the inner groove, and a reset spring is installed at the position, located in the inner groove, of the lower end of the baffle. According to the utility model, the two rotating plates are matched with the gear for transmission, and the angle measuring instrument is combined, so that the connecting rod small-end inclined plane is detected conveniently and quickly.

Description

Technical Field

[0001] The utility model relates to the technical field of detection devices, in particular to a detection device for a connecting rod small end inclined surface of a variable compression ratio engine. Background Art

[0002] The variable compression ratio engine connecting rod mechanism changes the upper and lower dead center positions of the piston during movement by changing the structural state of the piston connecting rod and the crankshaft, ultimately achieving a change in the engine compression ratio. Its technical accuracy and quality directly affect the working performance and service life of the engine. Therefore, there are higher requirements for size and shape accuracy. In order to meet the technical requirements, the detection of the connecting rod has become a frequent and indispensable link in the production process.

[0003] The angle of the connecting rod small end inclined surface of a variable compression ratio engine needs to be detected. Conventional detection mostly uses an inclinometer for inspection, which is inefficient. Therefore, a detection device for the connecting rod small end inclined surface of a variable compression ratio engine is proposed. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies of the prior art, the utility model provides a detection device for the inclined surface of the connecting rod small end of a variable compression ratio engine, so as to solve the problem of low efficiency of conventional detection proposed in the above background technology.

[0006] (II) Technical solution

[0007] To achieve the above object, the utility model provides the following technical solution: a detection device for the inclined surface of the connecting rod end of a variable compression ratio engine, comprising:

[0008] The bottom frame has a side frame installed on the right side of the upper end, and two rotating plates are installed inside the side frame through a rebound rotating shaft. A linkage gear is arranged at the right end inside the rotating plate, and the two linkage gears are meshed and connected. A pulley is rotatably installed at the left end inside the rotating plate;

[0009] A top frame is arranged at the upper end of the rotating plate, and an angle measuring instrument is installed at the upper end of the top frame;

[0010] The inner groove is arranged on the left side inside the bottom frame, a baffle is slidably installed inside the inner groove, and a return spring is installed inside the inner groove at the lower end of the baffle.

[0011] Preferably, a frame is provided on the left side of the upper end of the base frame, and the frame is fixedly connected to the base frame.

[0012] Preferably, a top frame is provided at a middle position of the upper end of the frame, and the top frame is fixedly connected to the frame.

[0013] Preferably, transmission screws are rotatably installed on both sides of the upper end of the top frame, and a slider is installed outside the transmission screw. The slider is slidably connected to the top frame, and the transmission screw is used to drive the slider.

[0014] Preferably, a clamping plate is installed at the lower end of the slider, and the clamping plate is fixedly connected to the slider, and the clamping plate is used to clamp and fix the connecting rod.

[0015] Preferably, a transmission bevel gear is installed at one end of the transmission screw located inside the top frame, a driving bevel gear is rotatably installed at the upper end inside the top frame, and the driving bevel gear is meshed and connected with the transmission bevel gear, and the driving bevel gear is used to drive the transmission bevel gear.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides a detection device for the inclined surface of the connecting rod small end of a variable compression ratio engine, which has the following beneficial effects:

[0018] The utility model places the connecting rod to be detected on the upper end of the base frame, inserts the right end of the connecting rod between the two rotating plates, and the left end of the connecting rod presses down the baffle and pushes the connecting rod to the right until the connecting rod is separated from the baffle, and the return spring pushes up the baffle to make it bounce up and block the connecting rod. At this time, the small head inclined surface of the connecting rod completely enters between the two rotating plates, and the rotating plate rotates. The two rotating plates are rotated to the same angle through the linkage gear, and the pulleys outside the rotating plate fit the upper and lower sides of the small head inclined surface. The rotation angle of the rotating plate is the same as the angle of the small head inclined surface. The angle measuring instrument performs angle detection on the rotating plate, thereby completing the detection work of the small head inclined surface of the connecting rod. It is convenient and quick, and solves the problems raised in the background technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0020] Figure 2 For the utility model Figure 1 A partial enlarged view of the middle A area;

[0021] Figure 3 It is a cross-sectional view of the internal structure of the chassis of the present utility model.

[0022] In the figure: 1. bottom frame; 2. side frame; 3. rotating plate; 4. pulley; 5. linkage gear; 6. top frame; 7. angle measuring instrument; 8. baffle; 9. inner groove; 10. return spring; 11. frame; 12. top frame; 13. transmission screw; 14. driving bevel gear; 15. transmission bevel gear; 16. slider; 17. clamping plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The utility model provides a technical solution, a detection device for the inclined surface of the connecting rod small end of a variable compression ratio engine, please refer to Figure 1 , Figure 2 and Figure 3 ,include:

[0025] The bottom frame 1 has a side frame 2 installed on the right side of the upper end. Two rotating plates 3 are installed inside the side frame 2 through a rebound rotating shaft. A linkage gear 5 is provided at the right end inside the rotating plate 3, and the two linkage gears 5 are meshed and connected. A pulley 4 is rotatably installed at the left end inside the rotating plate 3.

[0026] A top frame 6 is arranged at the upper end of the rotating plate 3, and an angle measuring instrument 7 is installed at the upper end of the top frame 6;

[0027] The inner groove 9 is arranged on the left side inside the base frame 1 , and a baffle 8 is slidably installed inside the inner groove 9 , and a return spring 10 is installed inside the inner groove 9 at the lower end of the baffle 8 .

[0028] When in use, place the connecting rod to be tested on the upper end of the base frame 1, insert the right end of the connecting rod between the two rotating plates 3, press the baffle 8 with the left end of the connecting rod and push the connecting rod to the right until the connecting rod is separated from the baffle 8, and the reset spring 10 pushes up the baffle 8 to make it bounce up and block the connecting rod. At this time, the small head inclined surface of the connecting rod completely enters between the two rotating plates 3, and the rotating plates 3 rotate. The two rotating plates 3 rotate at the same angle through the linkage gear 5. The pulley 4 outside the rotating plate 3 fits the upper and lower sides of the small head inclined surface. The rotation angle of the rotating plate 3 is the same as the angle of the small head inclined surface, and the angle measuring instrument 7 performs angle detection on the rotating plate 3. It should be noted that in order to save space and highlight the innovative elements of this patent, some conventional equipment such as the angle measuring instrument 7 and bevel gears will not be repeated in this patent.

[0029] See also Figure 1 and Figure 2 A frame 11 is provided on the left side of the upper end of the base frame 1 , and the frame 11 is fixedly connected to the base frame 1 .

[0030] See also Figure 1 and Figure 2 A top frame 12 is disposed at the middle position of the upper end of the frame 11 , and the top frame 12 is fixedly connected to the frame 11 .

[0031] See also Figure 1 and Figure 2A transmission screw 13 is rotatably installed on both sides of the upper end of the top frame 12, and a slider 16 is installed outside the transmission screw 13. The slider 16 is slidably connected to the top frame 12, and the transmission screw 13 is used to drive the slider 16.

[0032] See also Figure 1 and Figure 2 A clamping plate 17 is installed at the lower end of the slider 16, and the clamping plate 17 is fixedly connected to the slider 16, and the clamping plate 17 is used to clamp and fix the connecting rod.

[0033] See also Figure 1 and Figure 2 A transmission bevel gear 15 is installed at one end of the transmission screw 13 located inside the top frame 12, and a driving bevel gear 14 is rotatably installed on the upper end inside the top frame 12, and the driving bevel gear 14 is meshed and connected with the transmission bevel gear 15, and the driving bevel gear 14 is used to drive the transmission bevel gear 15.

[0034] This solution: place the connecting rod to be tested on the upper end of the base frame 1, insert the right end of the connecting rod between the two rotating plates 3, press the baffle 8 down at the left end of the connecting rod and push the connecting rod to the right until the connecting rod is disengaged from the baffle 8, and the return spring 10 pushes up the baffle 8 to make it bounce up and block the connecting rod. At this time, the small head inclined surface of the connecting rod completely enters between the two rotating plates 3, and the rotating plate 3 rotates. The two rotating plates 3 are rotated at the same angle through the linkage gear 5. The pulley 4 outside the rotating plate 3 fits the upper and lower sides of the small head inclined surface. The rotation angle of the rotating plate 3 is the same as the angle of the small head inclined surface. The angle measuring instrument 7 performs angle detection on the rotating plate 3. In order to improve the fixation of the connecting rod, the driving bevel gear 14 is rotated to rotate the transmission bevel gear 15, and then the transmission screw 13 is rotated. The slider 16 and the transmission screw 13 move under the transmission action, so that the clamping plate 17 clamps the connecting rod, so that the connecting rod is quickly fixed and limited.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A detection device for the inclined surface of the connecting rod end of a variable compression ratio engine, characterized in that: include: A bottom frame (1) is provided with a side frame (2) on the right side of the upper end, two rotating plates (3) are installed inside the side frame (2) via a rebound rotating shaft, a linkage gear (5) is provided at the right end inside the rotating plate (3), and the two linkage gears (5) are meshed and connected, and a pulley (4) is rotatably installed at the left end inside the rotating plate (3); A top frame (6) is arranged at the upper end of the rotating plate (3), and an angle measuring instrument (7) is installed at the upper end of the top frame (6); The inner groove (9) is arranged on the left side inside the base frame (1), and a baffle (8) is slidably installed inside the inner groove (9), and a return spring (10) is installed at the lower end of the baffle (8) inside the inner groove (9).

2. A detection device for the inclined surface of the connecting rod end of a variable compression ratio engine according to claim 1, characterized in that: A frame (11) is provided on the left side of the upper end of the base frame (1), and the frame (11) is fixedly connected to the base frame (1).

3. The detection device for the inclined surface of the connecting rod end of a variable compression ratio engine according to claim 2, characterized in that: A top frame (12) is provided at the middle position of the upper end of the frame (11), and the top frame (12) is fixedly connected to the frame (11).

4. A detection device for the inclined surface of the connecting rod end of a variable compression ratio engine according to claim 3, characterized in that: Transmission screws (13) are rotatably mounted on both sides of the upper end of the top frame (12), and a sliding block (16) is mounted outside the transmission screw (13), and the sliding block (16) is slidably connected to the top frame (12).

5. The detection device for the inclined surface of the connecting rod end of a variable compression ratio engine according to claim 4, characterized in that: A clamping plate (17) is installed at the lower end of the slider (16), and the clamping plate (17) is fixedly connected to the slider (16).

6. The device for detecting the inclined surface of the connecting rod end of a variable compression ratio engine according to claim 5, characterized in that: A transmission bevel gear (15) is installed at one end of the transmission screw (13) located inside the top frame (12), and a driving bevel gear (14) is rotatably installed at the upper end inside the top frame (12), and the driving bevel gear (14) is meshedly connected with the transmission bevel gear (15).

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