Automobile crankshaft pulley detection tool

Abstract

The utility model discloses an automobile crankshaft pulley detection tool comprising a detection bench, the bottom of the detection bench is fixedly provided with a pedestal, the top of the detection bench is rotatably connected with a rotating disc, a crankshaft pulley to be detected is placed on the rotating disc, and the rotating disc is at least used for driving the crankshaft pulley to be detected to rotate; a rotating cover is rotationally connected to the outer wall of the detection table, a fixing frame is fixedly arranged on the outer wall of the rotating cover, and the rotating cover is at least used for driving the fixing frame to rotate. According to the utility model, along with the rotation of the detected crankshaft pulley, the outer wall of the detected crankshaft pulley is in contact with the detection block, when the outer wall of the detected crankshaft pulley protrudes or sinks, the detection block moves, and the detection block extrudes the fixed contact switch or the movable contact switch. And the fixed contact switch or the movable contact switch can start the buzzer alarm to prompt that the position has a bulge or a recess.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile crankshaft pulleys, in particular to an automobile crankshaft pulley detection tool. Background Art

[0002] The automobile crankshaft pulley is the power source that drives the engine accessories inside the automobile. There are mounting holes on the automobile crankshaft pulley. When inspecting the automobile crankshaft pulley, it is necessary to inspect the mounting holes above it and the roundness of the outer side. If the mounting holes do not meet the standards, the mounting holes on the automobile crankshaft pulley will not correspond to the mounting holes at the required installation position during installation, which will cause the crankshaft pulley to fail to install.

[0003] In addition, the outer roundness detection of the automobile crankshaft pulley is also one of the important detection items. If the outer roundness of the crankshaft pulley does not meet the standard, it is easy to cause the belt to break when the crankshaft pulley runs at high speed.

[0004] In the prior art, when inspecting the outer wall of a crankshaft pulley of an automobile, a distance measuring device is usually used to detect the distance between a vertical surface of the crankshaft outer wall close to a distance measuring mechanism and the distance measuring mechanism. If the distance is different from a preset distance, there is a bulge or depression on the vertical surface.

[0005] However, the specific position of the protrusion or depression on the vertical surface cannot be detected, which results in the inability to quickly find the position of the protrusion or depression during roundness detection. Therefore, it is urgent to design an automobile crankshaft pulley detection tool to solve the above problem. Utility Model Content

[0006] The purpose of the utility model is to provide a vehicle crankshaft pulley detection tool to solve the above-mentioned deficiencies in the prior art.

[0007] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0008] An automobile crankshaft pulley testing tool comprises a testing platform, a base fixedly provided at the bottom of the testing platform, a turntable rotatably connected to the top of the testing platform, and a crankshaft pulley to be tested is placed on the turntable, and the turntable is at least used to drive the crankshaft pulley to be tested to rotate;

[0009] A rotating cover is rotatably connected to the outer wall of the detection platform, and a fixing frame is fixedly provided on the outer wall of the rotating cover. The rotating cover is at least used to drive the fixing frame to rotate. A rotating assembly is provided on the top of the base, and the rotating assembly is used to rotate the rotating cover.

[0010] The fixing frame is provided with a fixing assembly, and the fixing assembly is at least used for pressing and fixing the crankshaft pulley to be tested;

[0011] A roundness detection box is fixedly provided on the top of the detection platform, and the roundness detection box is at least used for detecting the roundness of the crankshaft pulley to be tested;

[0012] A support frame is fixedly provided on the outer wall of one side of the detection platform, and a hole position detection component is provided on the support frame, and the hole position detection component is at least used for detecting the hole position of the crankshaft pulley to be detected.

[0013] Furthermore, the rotating assembly includes a rotating motor, which is fixedly mounted on the outer wall of the top of the base, and a gear is provided on the output shaft of the rotating motor. A gear ring is fixedly mounted on the outer wall of the rotating cover, and the gear and the gear ring are meshed with each other.

[0014] Furthermore, the fixing assembly includes a long-neck screw, a holding block is fixedly provided at the bottom end of the long-neck screw, and anti-slip pads are fixedly provided on the bottom end of the holding block and the outer wall of the top of the turntable.

[0015] Furthermore, a guide seat is provided inside the roundness detection box, and a moving block is slidably connected inside the guide seat. A detection block is provided on the outer wall of one side of the moving block, and the detection block is in contact with the outer wall of the crankshaft pulley being tested.

[0016] Furthermore, a spring connected to the moving block is provided on the outer wall of the guide seat, and the spring is sleeved on the outside of the moving block.

[0017] Furthermore, a fixed contact switch is fixedly provided on the inner wall of one side of the roundness detection box, and a buzzer alarm is fixedly provided on the outer wall of one side of the roundness detection box.

[0018] Furthermore, the roundness detection box is internally slidably connected to a movable plate, and a number of movable contact switches are fixedly provided on the outer wall on one side of the movable plate. An adjusting screw is threadedly inserted on the outer wall on one side of the roundness detection box, and one end of the adjusting screw is rotatably connected to the movable plate through a bearing. The fixed contact switch and the movable contact switch are electrically connected to the buzzer alarm through wires.

[0019] Furthermore, the hole position detection component includes a hydraulic cylinder, and a detection rod is provided on the output end of the hydraulic cylinder.

[0020] In the above technical solution, the utility model provides an automobile crankshaft pulley detection tool.

[0021] 1. Through the set roundness detection box, guide seat, moving block, detection block, spring, contact switch and buzzer alarm, as the crankshaft pulley under test rotates, the outer wall of the crankshaft pulley under test will contact the detection block. When the outer wall of the crankshaft pulley under test has a bulge or depression, the detection block will move, and the detection block will drive the moving block to move and squeeze the fixed contact switch or the movable contact switch. The fixed contact switch or the movable contact switch will turn on the buzzer alarm, indicating that there is a bulge or depression at that position and the roundness does not meet the standard. This detection method can detect the unqualified position more specifically, which is conducive to quickly finding the unqualified position of the crankshaft pulley under test;

[0022] 2. By providing a rotating cover, a fixing frame, a rotating motor, a gear, a long-neck screw, a holding block and an anti-skid pad, rotating the long-neck screw can drive the holding block to move downward to hold and fix the crankshaft pulley to be tested on the turntable. The rotating motor can drive the gear to rotate and engage with the ring gear, so that the ring gear drives the rotating cover and the fixing frame to rotate. Since the anti-skid pad can increase the friction between the holding block, the turntable and the crankshaft pulley to be tested, the rotation of the support frame can drive the crankshaft pulley to be tested and the turntable to rotate, which is conducive to the outer roundness detection of the crankshaft pulley to be tested.

[0023] 3. Through the support frame, hydraulic cylinder and detection rod, the hydraulic cylinder can drive the detection rod to descend and extend into the mounting hole in the middle of the crankshaft pulley to be tested, so as to detect the size of the mounting hole and whether the size of the mounting hole is qualified. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0025] Figure 1 The present invention provides a three-dimensional structural schematic diagram of an embodiment of an automobile crankshaft pulley detection tooling.

[0026] Figure 2 The present invention provides a schematic diagram of the internal structure of an embodiment of a vehicle crankshaft pulley detection tool.

[0027] Figure 3 The present invention is a schematic diagram of the long-neck screw structure provided in an embodiment of an automobile crankshaft pulley detection tool.

[0028] Figure 4 The present invention is a schematic structural diagram of a roundness detection box provided in an embodiment of an automobile crankshaft pulley detection tooling.

[0029] Description of reference numerals:

[0030] 1. Test table; 2. Turntable; 3. Crankshaft pulley under test; 4. Rotating cover; 5. Fixed frame; 6. Rotating assembly; 7. Roundness test box; 8. Support frame; 9. Hydraulic cylinder; 10. Test rod; 11. Ring gear; 12. Rotating motor; 13. Gear; 14. Long-neck screw; 15. Holding block; 16. Anti-slip pad; 17. Guide seat; 18. Moving block; 19. Test block; 20. Spring; 21. Fixed contact switch; 22. Buzzer alarm; 23. Base; 24. Fixed assembly; 25. Hole position detection assembly; 26. Movable plate; 27. Movable contact switch; 28. Adjusting screw. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0032] like Figure 1-4 As shown, an automobile crankshaft pulley detection tool provided by the embodiment of the present invention includes a detection platform 1, a base 23 is fixedly provided at the bottom of the detection platform 1, a turntable 2 is rotatably connected to the top of the detection platform 1, and the crankshaft pulley 3 to be tested is placed on the turntable 2, and the turntable 2 is at least used to drive the crankshaft pulley 3 to be tested to rotate; a rotating cover 4 is rotatably connected to the outer wall of the detection platform 1, and a fixing frame 5 is fixedly provided on the outer wall of the rotating cover 4, and the rotating cover 4 is at least used to drive the fixing frame 5 to rotate, and a rotating cover 4 is provided on the top of the base 23. Component 6, and the rotating component 6 is used to rotate the rotating cover 4; a fixing component 24 is provided on the fixing frame 5, and the fixing component 24 is at least used to press and fix the crankshaft pulley 3 to be tested; a roundness detection box 7 is fixedly provided on the top of the testing platform 1, and the roundness detection box 7 is at least used to detect the roundness of the crankshaft pulley 3 to be tested; a supporting frame 8 is fixedly provided on the outer wall of one side of the testing platform 1, and a hole position detection component 25 is provided on the supporting frame 8, and the hole position detection component 25 is at least used to detect the hole position of the crankshaft pulley 3 to be tested.

[0033] In this embodiment, a test platform 1 is provided, wherein a base 23 is fixedly provided at the bottom of the test platform 1, a turntable 2 is rotatably connected to the top of the test platform 1, and a crankshaft pulley 3 to be tested is placed on the top of the turntable 2, and the turntable 2 is used to at least drive the crankshaft pulley 3 to be tested to rotate;

[0034] In this embodiment, Figure 1 and Figure 2 As shown, a rotating cover 4 is rotatably connected to the outer wall of the testing platform 1, and a fixing frame 5 is fixedly provided on the outer wall of the rotating cover 4. The rotating cover 4 is at least used to drive the fixing frame 5 to rotate. A rotating assembly 6 is provided on the top of the base 23, and the rotating assembly 6 is used to rotate the rotating cover 4;

[0035] Specifically, the rotating assembly 6 includes a rotating motor 12, which is fixedly arranged on the outer wall of the top of the base 23, and a gear 13 is provided on the output shaft of the rotating motor 12. A ring gear 11 is fixedly arranged on the outer wall of the rotating cover 4, and the gear 13 and the ring gear 11 are engaged with each other. The rotating motor 12 can drive the gear 13 to rotate and engage with the ring gear 11.

[0036] In this embodiment, Figure 1 、 2 and Figure 3 As shown, a fixing assembly 24 is provided on the fixing frame 5, and the fixing assembly 24 is at least used to press and fix the crankshaft pulley 3 to be tested;

[0037] Specifically, the fixing assembly 24 includes a long-neck screw 14, a pressing block 15 is fixedly provided at the bottom end of the long-neck screw 14, and an anti-slip pad 16 is fixedly provided on the bottom end of the pressing block 15 and the outer wall of the top of the turntable 2. The long-neck screw 14 can drive the pressing block 15 to move downward to press and fix the crankshaft pulley 3 under test. Because the anti-slip pad 16 can increase the friction between the pressing block 15, the turntable 2 and the crankshaft pulley 3 under test, the crankshaft pulley 3 under test can be made to rotate with the fixed frame 5 and the turntable 2.

[0038] In this embodiment, Figure 2 and Figure 4 As shown, a roundness detection box 7 is fixedly provided on the top of the detection platform 1, and the roundness detection box 7 is at least used for detecting the roundness of the crankshaft pulley 3 to be tested;

[0039] Specifically, a guide seat 17 is provided inside the roundness detection box 7, and a moving block 18 is slidably connected inside the guide seat 17. A detection block 19 is provided on the outer wall of one side of the moving block 18, and the detection block 19 is in contact with the outer wall of the crankshaft pulley 3 to be tested. The detection block 19 is used to detect the roundness of the outer wall of the crankshaft pulley 3 to be tested;

[0040] Specifically, a spring 20 connected to the moving block 18 is provided on the outer wall of the guide seat 17, and the spring 20 is sleeved on the outside of the moving block 18, and the spring 20 exerts a pulling force on the moving block 18;

[0041] Specifically, a fixed contact switch 21 is fixedly provided on the inner wall of one side of the roundness detection box 7, and a buzzer alarm 22 is fixedly provided on the outer wall of one side of the roundness detection box 7. The buzzer alarm 22 is used for alarming;

[0042] Specifically, the interior of the roundness detection box 7 is slidably connected to a movable plate 26, and a number of movable contact switches 27 are fixedly provided on the outer wall on one side of the movable plate 26. An adjusting screw 28 is threadedly inserted into the outer wall on one side of the roundness detection box 7, and one end of the adjusting screw 28 is rotatably connected to the movable plate 26 through a bearing. The fixed contact switch 21 and the movable contact switch 27 are electrically connected to the buzzer alarm 22 through a wire. When the fixed contact switch 21 and the movable contact switch 27 are squeezed by the moving block 18, the buzzer alarm 22 will be turned on to alarm.

[0043] In this embodiment, Figure 1 and Figure 2 As shown, a support frame 8 is fixedly provided on the outer wall of one side of the testing platform 1, and a hole position detection component 25 is provided on the support frame 8, and the hole position detection component 25 is at least used for detecting the hole position of the crankshaft pulley 3 to be tested;

[0044] Specifically, the hole position detection component 25 includes a hydraulic cylinder 9, and a detection rod 10 is provided on the output end of the hydraulic cylinder 9. The hydraulic cylinder 9 can drive the detection rod 10 to descend to detect the mounting hole of the crankshaft pulley 3 to be detected.

[0045] Working principle:

[0046] (1) The crankshaft pulley 3 to be tested is placed above the turntable 2. The crankshaft pulley 3 to be tested presses the detection block 19, causing the detection block 19 to move a certain distance but not contact the fixed contact switch 21;

[0047] (2) The crankshaft pulley 3 to be tested is pressed and fixed on the turntable 2 by the fixing assembly 24;

[0048] (3) Detect the size of the mounting hole of the crankshaft pulley 3 to be tested. Open the hole position detection component 25 to lower the detection rod 10. Insert the detection rod 10 into the mounting hole of the crankshaft pulley 3 to be tested. If a certain detection rod 10 cannot be inserted into the mounting hole, the mounting hole is too small and unqualified. Observe whether the outer wall of each detection rod 10 fits with the inner wall of the mounting hole of the crankshaft pulley 3 to be tested. The mounting hole that does not fit with the outer wall of the detection rod 10 is not too large and unqualified.

[0049] (4) To detect the outer roundness of the crankshaft pulley 3 to be tested, turn the adjusting screw 28 to drive the movable plate 26 and the movable contact switch 27 to move in the direction of the fixed contact switch 21, but do not contact the end of the movable block 18. Turn on the rotating assembly 6 to rotate the fixed frame 5, the crankshaft pulley 3 to be tested and the turntable 2. When the crankshaft pulley 3 to be tested rotates, its outer wall will contact multiple detection blocks 19. When a bulge or depression appears on the outer wall of the crankshaft pulley 3 to be tested, the detection block 19 will move. The detection block 19 will drive the movable block 18 to move and squeeze the fixed contact switch 21 or the movable contact switch 27. The fixed contact switch 21 or the movable contact switch 27 will turn on the buzzer alarm 22, indicating that there is a bulge or depression at this position and the roundness of the crankshaft pulley 3 to be tested does not meet the standard.

[0050] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A vehicle crankshaft pulley detection tool, comprising a detection platform (1), characterized in that: The bottom of the testing platform (1) is fixedly provided with a base (23), the top of the testing platform (1) is rotatably connected to a turntable (2), and the crankshaft pulley (3) to be tested is placed on the turntable (2), and the turntable (2) is at least used to drive the crankshaft pulley (3) to be tested to rotate; A rotating cover (4) is rotatably connected to the outer wall of the detection platform (1), and a fixing frame (5) is fixedly provided on the outer wall of the rotating cover (4); the rotating cover (4) is at least used to drive the fixing frame (5) to rotate; a rotating assembly (6) is provided on the top of the base (23), and the rotating assembly (6) is used to rotate the rotating cover (4); The fixing frame (5) is provided with a fixing assembly (24), and the fixing assembly (24) is at least used for pressing and fixing the crankshaft pulley (3) to be tested; A roundness detection box (7) is fixedly provided on the top of the detection platform (1), and the roundness detection box (7) is at least used for detecting the roundness of the crankshaft pulley (3) to be detected; A support frame (8) is fixedly provided on the outer wall of one side of the detection platform (1), and a hole position detection component (25) is provided on the support frame (8), and the hole position detection component (25) is at least used for detecting the hole position of the crankshaft pulley (3) to be tested.

2. The automobile crankshaft pulley detection tool according to claim 1, characterized in that: The rotating assembly (6) includes a rotating motor (12), the rotating motor (12) is fixedly arranged on the outer wall of the top of the base (23), and a gear (13) is arranged on the output shaft of the rotating motor (12), and a ring gear (11) is fixedly arranged on the outer wall of the rotating cover (4), and the gear (13) and the ring gear (11) are meshed with each other.

3. The automobile crankshaft pulley detection tool according to claim 1, characterized in that: The fixing assembly (24) comprises a long-neck screw (14), a holding block (15) is fixedly provided at the bottom end of the long-neck screw (14), and anti-slip pads (16) are fixedly provided at the bottom end of the holding block (15) and on the outer wall of the top of the turntable (2).

4. The automobile crankshaft pulley detection tool according to claim 1, characterized in that: A guide seat (17) is provided inside the roundness detection box (7), and a moving block (18) is slidably connected inside the guide seat (17). A detection block (19) is provided on the outer wall of one side of the moving block (18), and the detection block (19) is in contact with the outer wall of the crankshaft pulley (3) to be tested.

5. The automobile crankshaft pulley detection tool according to claim 4, characterized in that: A spring (20) connected to the moving block (18) is provided on the outer wall of the guide seat (17), and the spring (20) is sleeved on the outside of the moving block (18).

6. The automobile crankshaft pulley detection tool according to claim 5, characterized in that: A fixed contact switch (21) is fixedly provided on the inner wall of one side of the roundness detection box (7), and a buzzer alarm (22) is fixedly provided on the outer wall of one side of the roundness detection box (7).

7. The automobile crankshaft pulley detection tool according to claim 6, characterized in that: The roundness detection box (7) is internally slidably connected to a movable plate (26), and a plurality of movable contact switches (27) are fixedly provided on the outer wall of one side of the movable plate (26). An adjusting screw (28) is threadedly inserted on the outer wall of one side of the roundness detection box (7), and one end of the adjusting screw (28) is rotatably connected to the movable plate (26) through a bearing. The fixed contact switch (21) and the movable contact switch (27) are both electrically connected to the buzzer alarm (22) through a wire.

8. The automobile crankshaft pulley detection tool according to claim 1, characterized in that: The hole position detection component (25) comprises a hydraulic cylinder (9), and a detection rod (10) is provided on the output end of the hydraulic cylinder (9).

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