Automobile engine crankshaft recovery detection mechanism

Abstract

The utility model discloses an automobile engine crankshaft recovery detection mechanism, which comprises a driving gear arranged on a right support, the driving gear is meshed with a right positioning gear, the right positioning gear is pivoted on a right fan-shaped piece, and the right positioning gear is provided with a crankshaft right end positioning hole. The right lock pin does not lock the right positioning gear and the right fan-shaped piece, the right fan-shaped piece and the right support are in a connection state, the driving gear drives the right positioning gear to rotate, and the probe detects the surface of the main journal. When the crankshaft connecting rod journal is detected, a worker releases the connection between the right fan-shaped member and the right support, the right lock pin locks the right fan-shaped member and the right positioning gear, the right positioning gear revolves around the driving gear, and the probe detects the surface of the connecting rod journal. According to the design, under the condition that the crankshaft is positioned and clamped at a time, the main journal and the connecting rod journal are detected, and improvement of the detection precision and the detection efficiency is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the detection field of automobile parts, and particularly relates to a detection equipment of automobile crankshaft. BACKGROUND

[0002] The crankshaft is the most important component in the engine, and its manufacturing precision and manufacturing cost are very high. In recycling, it is also recycled as an important part. The main shaft neck and connecting rod shaft neck of the crankshaft are the rotating wear parts. After a period of use, the basic size, cylindricity and coaxiality of the main shaft neck and connecting rod shaft neck may change. In order to ensure the normal use of the recycled crankshaft, the size of the smooth surface of the main shaft neck and connecting rod shaft neck is generally detected, and the parts with uneven or rough surface or scratches are polished and re-plated (application publication number CN114659434A, scrap automobile engine crankshaft recycling special detection equipment, description part of the background technology). SUMMARY

[0003] The utility model solves the technical problem: how to clamp the crankshaft once, and detect the main shaft neck and connecting rod shaft neck.

[0004] In order to solve the above technical problem, the utility model provides the following technical scheme: the automobile engine crankshaft recycling detection mechanism, including left support and right support, driving gear installed on the right support, follow-up gear installed on the left support, the driving gear is driven by the power unit, the driving gear is engaged with the right positioning gear, the right positioning gear is pivoted on the right sector, the right sector is detachably connected with the right support, the right sector and the right positioning gear are provided with a detachable right lock pin, and the right positioning gear is provided with a crankshaft right end positioning hole;

[0005] The follow-up gear is engaged with the left positioning gear, the left positioning gear is pivoted on the left sector, the left sector is detachably connected with the left support, the left sector and the left positioning gear are provided with a detachable left lock pin, and the left positioning gear is provided with a crankshaft left end positioning hole;

[0006] The axis of the left positioning gear coincides with the axis of the right positioning gear, and the axis of the left positioning gear coincides with the axis of the crankshaft main shaft neck; the axis of the driving gear coincides with the axis of the follow-up gear, and the axis of the driving gear coincides with the axis of the crankshaft connecting rod shaft neck;

[0007] The left support is provided with a left side annular guide groove, and the left sector is fitted in the left side annular guide groove; the right support is provided with a right side annular guide groove, and the right sector is fitted in the right side annular guide groove;

[0008] The left support is provided with a left side annular guide groove, and the left sector is fitted in the left side annular guide groove; the right support is provided with a right side annular guide groove, and the right sector is fitted in the right side annular guide groove;

[0009] According to the above technical solution, the left end of the crankshaft fits into the positioning hole at the left end of the crankshaft, and the right end of the crankshaft fits into the positioning hole at the right end of the crankshaft. The left locking pin does not lock the left positioning gear and the left sector component; the left sector component and the left bracket are in a connected state. The right locking pin does not lock the right positioning gear and the right sector component; the right sector component and the right bracket are in a connected state. The power unit drives the drive gear, the drive gear drives the right positioning gear to rotate, the right positioning gear drives the crankshaft to rotate around the axis of the main journal, the crankshaft drives the left positioning gear to rotate, and the follower gear follows suit. A descending probe inspects the surface of the main journal.

[0010] During the inspection of the crankshaft connecting rod journal, the worker disconnects the left sector component from the left bracket, and the right sector component from the right bracket. Simultaneously, the left locking pin locks the left sector component to the left positioning gear, and the right locking pin locks the right sector component to the right positioning gear. The power unit drives the drive gear, which in turn drives the right positioning gear. The right sector component, locked to the right positioning gear, rotates along the right annular guide groove, and the right positioning gear revolves around the drive gear. The crankshaft drives the left positioning gear to revolve around the follower gear. A descending probe inspects the surface of the connecting rod journal.

[0011] This invention allows for the inspection of the main journal and connecting rod journal during a single positioning and clamping of the crankshaft, avoiding the large errors that may occur with multiple positioning and clamping, and thus improving inspection accuracy and efficiency.

[0012] The right positioning gear has a right pin hole, and the left side of the right sector component has a right positioning gear locking hole. The right locking pin is inserted into the right pin hole and the right positioning gear locking hole to achieve a detachable connection between the right positioning gear and the right sector component. The right side of the right sector component has a right sector component locking hole, and the first locking member passes through the right bracket and fits into the right sector component locking hole to achieve a detachable connection between the right sector component and the right bracket.

[0013] The left positioning gear has a left pin hole, and the right side of the left sector component has a left positioning gear locking hole. The left locking pin is inserted into the left pin hole and the left positioning gear locking hole to achieve a detachable connection between the left positioning gear and the left sector component. The left side of the left sector component has a left sector component locking hole, and the second locking member passes through the left bracket and fits into the left sector component locking hole to achieve a detachable connection between the left sector component and the left bracket.

[0014] The left positioning gear has a left-end arc-shaped groove, which is located beside and connected to the left-end positioning hole of the crankshaft. A detachable left contour block is located within the left-end arc-shaped groove. The right positioning gear has a right-end arc-shaped groove, which is located beside and connected to the right-end positioning hole of the crankshaft. A detachable right contour block is located within the right-end arc-shaped groove. The left end of the crankshaft is inserted into the left-end positioning hole via the left-end arc-shaped groove, and the right end of the crankshaft is inserted into the right-end positioning hole via the right-end arc-shaped groove. The left contour block fits into the left-end arc-shaped groove, and the right contour block fits into the right-end arc-shaped groove. The locking bolts are tightened to secure the crankshaft ends in the corresponding positioning holes.

[0015] The power unit includes a motor, a driving bevel gear mounted on the motor, and a driven bevel gear meshing with the driving bevel gear. The driven bevel gear shaft is connected to the driving gear shaft.

[0016] The testing device includes a vertical cylinder mounted on top of the left support, a crossbeam connected to the vertical cylinder, a translation frame movably fitted at the bottom of the crossbeam, and a timing belt mechanism mounted on top of the crossbeam. The timing belt of the timing belt mechanism is connected to the translation frame via a connector, and the probe is mounted at the bottom of the translation frame. The timing belt drives the probe to translate, performing a comprehensive inspection of the crankshaft surface.

[0017] An L-shaped guide is fixedly connected to the left end of the crossbeam. The L-shaped guide engages with a guide block, which is mounted on a guide plate located beside the left support. A vertical cylinder drives the crossbeam to rise and fall, and the guide block guides the L-shaped guide. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of a car engine crankshaft recycling and testing mechanism.

[0020] Figure 2 for Figure 1 A partial structural diagram at point A in the middle;

[0021] Figure 3 for Figure 2 The left view;

[0022] Figure 4 for Figure 2 The right view;

[0023] Figure 5 A schematic diagram of the right positioning gear 40;

[0024] Figure 6 for Figure 5 BB-direction sectional view;

[0025] Figure 7 This is a schematic diagram of the right sector component 41;

[0026] Figure 8 for Figure 7 The left view.

[0027] Explanation of symbols in the diagram:

[0028] 10. Left brace;

[0029] 20. Right support; 21. Right-side annular guide groove;

[0030] 31. Driving gear; 32. Follower gear;

[0031] 40. Right positioning gear; 41. Right sector component; 42. Right locking pin; 43. Right end positioning hole of crankshaft; 44. Right pin hole; 45. Right positioning gear locking hole; 46. Right sector component locking hole; 47. First locking component; 48. Right end arc-shaped groove; 49. Right contour block;

[0032] 50. Left positioning gear; 51. Left sector component;

[0033] 60. Detection device; 61. Probe; 62. Vertical cylinder; 63. Crossbeam; 64. Translation frame; 65. Synchronous belt; 66. Motor driving the synchronous belt; 67. Connecting component; 68. L-shaped guide component; 69. Guide block;

[0034] 71. Electric motor; 72. Driving bevel gear; 73. Driven bevel gear; 74. Driven bevel gear shaft;

[0035] 91. Crankshaft main journal; 92. Crankshaft connecting rod journal. Detailed Implementation

[0036] Combination Figures 1 to 4 The automobile engine crankshaft recycling and detection mechanism includes a left bracket 10 and a right bracket 20, a drive gear 31 mounted on the right bracket, and a follower gear 32 mounted on the left bracket. The drive gear is driven by a power unit and meshes with a right positioning gear 40. The right positioning gear is pivotally connected to a right sector member 41. The right sector member is detachably connected to the right bracket. A detachable right locking pin 42 is provided between the right sector member and the right positioning gear. The right positioning gear is provided with a crankshaft right end positioning hole 43.

[0037] The follower gear 32 meshes with the left positioning gear 50. The left positioning gear is pivotally connected to the left sector member 51. The left sector member is detachably connected to the left bracket 10. A detachable left locking pin is provided between the left sector member and the left positioning gear. The left positioning gear is provided with a crankshaft left end positioning hole.

[0038] The axis of the left positioning gear 50 coincides with the axis of the right positioning gear 40, and the axis of the left positioning gear coincides with the axis of the crankshaft main journal 91; the axis of the driving gear coincides with the axis of the follower gear, and the axis of the driving gear coincides with the axis of the crankshaft connecting rod journal 92.

[0039] The left support is provided with a left annular guide groove, and the left sector component is fitted in the left annular guide groove. The right support 20 is provided with a right annular guide groove 21, and the right sector component 41 is fitted in the right annular guide groove.

[0040] The left bracket is equipped with a lifting detection device 60, which includes a probe 61 for detecting the crankshaft main journal and connecting rod journal.

[0041] The right positioning gear 40 is provided with a right pin hole 44, and the left side of the right sector part 41 is provided with a right positioning gear locking hole 45. The right locking pin 42 is inserted into the right pin hole and the right positioning gear locking hole to realize the detachable connection between the right positioning gear and the right sector part.

[0042] The right side of the right sector component is provided with a right sector component locking hole 46. The first locking piece 47 passes through the right bracket 20 and is engaged in the right sector component locking hole, so as to realize the detachable connection between the right sector component and the right bracket.

[0043] The left positioning gear 50 has a left pin hole, and the right side of the left sector member 51 has a left positioning gear locking hole. The left locking pin is inserted into the left pin hole and the left positioning gear locking hole, realizing a detachable connection between the left positioning gear and the left sector member. The left side of the left sector member has a left sector member locking hole, and the second locking member passes through the left bracket and engages in the left sector member locking hole, realizing a detachable connection between the left sector member 51 and the left bracket 10.

[0044] like Figure 1 The power unit includes a motor 71, a driving bevel gear 72 mounted on the motor, and a driven bevel gear 73 meshing with the driving bevel gear. The driven bevel gear shaft is connected to the driving gear shaft.

[0045] The detection device 60 includes a vertical cylinder 62 mounted on the top of the left support 10, a crossbeam 63 connected to the vertical cylinder, a translation frame 64 movably fitted at the bottom of the crossbeam, and a synchronous belt mechanism mounted on the top of the crossbeam. The synchronous belt 65 of the synchronous belt mechanism is connected to the translation frame via a connector 67, and the probe 61 is mounted at the bottom of the translation frame.

[0046] An L-shaped guide 68 is fixedly connected to the left end of the crossbeam 63. The L-shaped guide 68 cooperates with the guide block 69. The guide block is installed on the guide plate, which is located on the side of the left support 10.

[0047] refer to Figure 5 , Figure 6The left positioning gear 50 has a left-end arc-shaped groove, which is located beside and connected to the left-end positioning hole of the crankshaft. A detachable left contour block is provided in the left-end arc-shaped groove. The right positioning gear 40 has a right-end arc-shaped groove 48, which is located beside and connected to the right-end positioning hole 43 of the crankshaft. A detachable right contour block 49 is provided in the right-end arc-shaped groove.

[0048] The left end of the crankshaft fits into the left end positioning hole, and the right end fits into the right end positioning hole 43. The left locking pin does not lock the left positioning gear 50 and the left sector member 51; the left sector member and the left bracket 10 are in a connected state. The right locking pin 42 does not lock the right positioning gear 40 and the right sector member 41; the right sector member and the right bracket 20 are in a connected state. The power unit drives the drive gear 31, which drives the right positioning gear 40 to rotate. The right positioning gear drives the crankshaft to rotate around the axis of the main journal, which in turn drives the left positioning gear 50 to rotate, and the follower gear 32 follows suit. The descending probe 61 inspects the surface of the main journal 91.

[0049] During the inspection of the crankshaft connecting rod journal 92, the worker disconnects the left sector component 51 from the left bracket 10, and the right sector component 41 from the right bracket 20. Simultaneously, the left locking pin locks the left sector component to the left positioning gear 50, and the right locking pin 42 locks the right sector component 41 to the right positioning gear 40. The power unit drives the drive gear 31, which in turn drives the right positioning gear 40. The right sector component 41, locked to the right positioning gear, rotates along the right annular guide groove 21, and the right positioning gear revolves around the drive gear. The crankshaft drives the left positioning gear 50 to revolve around the follower gear 32. The descending probe 61 inspects the surface of the connecting rod journal.

[0050] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A crankshaft recycling and detection mechanism for an automobile engine, comprising a left support (10) and a right support (20), a drive gear (31) mounted on the right support, and a follower gear (32) mounted on the left support, wherein the drive gear is driven by a power unit, characterized in that: The drive gear meshes with the right positioning gear (40), the right positioning gear is pivotally connected to the right sector (41), the right sector is detachably connected to the right bracket, a detachable right locking pin (42) is provided between the right sector and the right positioning gear, and the right positioning gear is provided with a crankshaft right end positioning hole (43). The follower gear (32) meshes with the left positioning gear (50), the left positioning gear is pivotally connected to the left sector (51), the left sector is detachably connected to the left bracket (10), a detachable left locking pin is provided between the left sector and the left positioning gear, and the left positioning gear is provided with a crankshaft left end positioning hole; The axis of the left positioning gear (50) coincides with the axis of the right positioning gear (40), and the axis of the left positioning gear coincides with the axis of the crankshaft main journal (91); the axis of the driving gear coincides with the axis of the follower gear, and the axis of the driving gear coincides with the axis of the crankshaft connecting rod journal (92). The left bracket is provided with a left annular guide groove, and the left sector piece is fitted in the left annular guide groove. The right bracket (20) is provided with a right annular guide groove (21), and the right sector piece (41) is fitted in the right annular guide groove. The left bracket is equipped with a lifting detection device (60), which includes a probe (61) for detecting the crankshaft main journal and connecting rod journal.

2. The automobile engine crankshaft recycling and detection mechanism as described in claim 1, characterized in that: The right positioning gear (40) is provided with a right pin hole (44), and the right sector part (41) is provided with a right positioning gear locking hole (45) on the left side. The right locking pin (42) is inserted into the right pin hole and the right positioning gear locking hole to realize the detachable connection between the right positioning gear and the right sector part. The right side of the right sector component is provided with a right sector component lock hole (46), and the first lock (47) passes through the right bracket (20) and fits in the right sector component lock hole to realize the detachable connection between the right sector component and the right bracket.

3. The automobile engine crankshaft recycling and detection mechanism as described in claim 1, characterized in that: The left positioning gear (50) is provided with a left pin hole, and the right side of the left sector part (51) is provided with a left positioning gear locking hole. The left locking pin is inserted into the left pin hole and the left positioning gear locking hole to realize the detachable connection between the left positioning gear and the left sector part. The left side of the left sector component has a locking hole for the left sector component. The second locking component passes through the left bracket and fits into the locking hole of the left sector component, so that the left sector component (51) and the left bracket (10) can be detachably connected.

4. The automobile engine crankshaft recycling and detection mechanism as described in claim 1, characterized in that: The power unit includes a motor (71), a driving bevel gear (72) mounted on the motor, and a driven bevel gear (73) meshing with the driving bevel gear. The driven bevel gear shaft is connected to the driving gear shaft.

5. The automobile engine crankshaft recycling and detection mechanism as described in claim 1, characterized in that: The detection device (60) includes a vertical cylinder (62) mounted on the top of the left bracket (10), a crossbeam (63) connected to the vertical cylinder, a translation frame (64) movably fitted at the bottom of the crossbeam, and a synchronous belt mechanism mounted on the top of the crossbeam. The synchronous belt (65) of the synchronous belt mechanism is connected to the translation frame via a connector (67), and the probe (61) is mounted at the bottom of the translation frame.

6. The automobile engine crankshaft recycling and detection mechanism as described in claim 5, characterized in that: An L-shaped guide (68) is fixedly connected to the left end of the crossbeam (63). The L-shaped guide cooperates with the guide block (69). The guide block is installed on the guide plate, which is located on the side of the left support (10).

7. The automobile engine crankshaft recycling and detection mechanism as described in claim 1, characterized in that: The left positioning gear (50) is provided with a left-end arc-shaped groove, which is located next to the left-end positioning hole of the crankshaft and connected to the left-end positioning hole of the crankshaft. A detachable left contour block is provided in the left-end arc-shaped groove. The right positioning gear (40) is provided with a right-end arc-shaped groove (48), which is located next to the right-end positioning hole (43) of the crankshaft and connected to the right-end positioning hole of the crankshaft. A right-end arc-shaped block (49) is provided in the right-end arc-shaped groove.

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