Diesel engine flywheel gear ring gap detection device

Abstract

The utility model discloses a diesel engine flywheel gear ring gap detection device, which comprises a base, a rotating shaft, an inner gear, an outer gear and a measuring instrument, the base is detachably arranged at the connection position of a flywheel housing and a starting motor, the rotating shaft is arranged on the base through a bearing, and the inner gear is arranged at one end of the rotating shaft, extends into the flywheel housing and is meshed with a flywheel gear ring. The outer gear is installed at the other end of the rotating shaft, located outside the flywheel housing and close to the measuring instrument, the inner gear and the outer gear rotate synchronously, and the measuring instrument detects rotation of the outer gear. During measurement, the base is installed on the flywheel cover shell, the meshing state is fed back to the outer gear through meshing of the inner gear and the flywheel gear ring, then the clearance of the gears is reflected through rotation of the outer gear, the clearance amount of the inner gear and the flywheel gear ring can be clearly measured, and the measurement accuracy and convenience are improved.

Description

Technical Field

[0001] This utility model relates to the field of testing tooling, and in particular to a diesel engine flywheel gear ring clearance testing device. Background Technology

[0002] Diesel engines, as the primary power source, still occupy a very large share in the shipping industry. Currently, most marine diesel engines still use electric motors or pneumatic motors for starting. As diesel engines become increasingly compact and well-protected, the flywheel gear ring is often completely enclosed inside the gear housing. This makes it impossible to measure the contact clearance between the flywheel gear ring and the starter motor gear, thus making it impossible to control assembly quality. The clearance between the starter motor and the flywheel gear ring has a critical impact on the stable operation of the diesel engine.

[0003] The flywheel ring gear of the existing diesel engine is completely inside the flywheel housing, making it impossible to measure the contact clearance between the flywheel ring gear and the starter motor gear. When the diesel engine starts, the starter motor gear inserts into the flywheel ring gear and meshes with it, driving the flywheel to start, resulting in gear grinding and severe wear.

[0004] Therefore, how to provide a diesel engine flywheel gear ring clearance detection device that facilitates clearance measurement is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a diesel engine flywheel gear ring clearance detection device. By meshing the internal gear with the flywheel gear ring, the meshing state is fed back to the external gear. The rotation of the external gear reflects the gear clearance, which can clearly measure the clearance between the internal gear and the flywheel gear ring, improving the accuracy and convenience of measurement.

[0006] To solve the above-mentioned technical problems, this utility model provides a diesel engine flywheel gear ring clearance detection device, including a base, a rotating shaft, an internal gear, an external gear, and a measuring instrument. The base is detachably installed at the connection position between the flywheel housing and the starter motor. The rotating shaft is installed on the base via a bearing. The internal gear is installed at one end of the rotating shaft, extends into the flywheel housing, and meshes with the flywheel gear ring. The external gear is installed at the other end of the rotating shaft, located outside the flywheel housing and close to the measuring instrument. The internal gear and the external gear rotate synchronously, and the measuring instrument detects the rotation of the external gear.

[0007] Preferably, the two ends of the rotating shaft are connected to the internal gear and the external gear respectively via flat keys.

[0008] Preferably, both the internal gear and the external gear are provided with shaft elastic retaining rings on their sides.

[0009] Preferably, the measuring instrument is a magnetometer.

[0010] Preferably, the measuring instrument is a vision camera.

[0011] Preferably, the base includes an inner base plate and an outer base plate disposed opposite to each other, the rotating shaft passes through an inner mounting through hole in the inner base plate and an outer mounting through hole in the outer base plate, and the bearing is mounted in the inner mounting through hole and the outer mounting through hole.

[0012] Preferably, the inner mounting through hole and the outer mounting through hole are stepped holes, an inner cover plate is installed on the outside of the inner mounting through hole, and an outer cover plate is installed on the outside of the outer mounting through hole.

[0013] Preferably, the inner cover plate is connected to the inner bottom plate by hexagonal bolts, and the outer cover plate is connected to the outer bottom plate by hexagonal bolts.

[0014] Preferably, the bearing is a deep groove ball bearing.

[0015] Preferably, a sleeve surrounding the middle of the rotating shaft is installed between the inner bottom plate and the outer bottom plate, and the inner bottom plate and the outer bottom plate are welded to both ends of the sleeve.

[0016] This utility model provides a diesel engine flywheel gear ring clearance detection device, including a base, a rotating shaft, an internal gear, an external gear, and a measuring instrument. The base is detachably installed at the connection position between the flywheel housing and the starter motor. The rotating shaft is installed on the base through a bearing. The internal gear is installed at one end of the rotating shaft, extends into the flywheel housing, and meshes with the flywheel gear ring. The external gear is installed at the other end of the rotating shaft, located outside the flywheel housing and close to the measuring instrument. The internal gear and the external gear rotate synchronously, and the measuring instrument detects the rotation of the external gear.

[0017] During measurement, the base is installed on the flywheel housing. The meshing of the internal gear and the flywheel ring gear feeds back the meshing state to the external gear. The rotation of the external gear reflects the gear clearance, which can clearly measure the clearance between the internal gear and the flywheel ring gear, improving measurement accuracy and convenience. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a specific embodiment of the diesel engine flywheel gear clearance detection device provided by this utility model.

[0019] Among them, the components are: 1. Shaft; 2. Internal gear; 3. External gear; 4. Flat key; 5. Shaft elastic retaining ring; 6. Inner base plate; 7. Outer base plate; 8. Inner cover plate; 9. Outer cover plate; 10. Deep groove ball bearing; and 11. Sleeve. Detailed Implementation

[0020] The core of this utility model is to provide a diesel engine flywheel gear ring clearance detection device. By meshing the internal gear with the flywheel gear ring, the meshing state is fed back to the external gear. The rotation of the external gear reflects the gear clearance, which can clearly measure the clearance between the internal gear and the flywheel gear ring, improving the accuracy and convenience of measurement.

[0021] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Please refer to Figure 1 , Figure 1 This is a schematic diagram of a specific embodiment of the diesel engine flywheel gear clearance detection device provided by this utility model.

[0023] This utility model provides a diesel engine flywheel gear ring clearance detection device, including a base, a rotating shaft 1, an internal gear 2, an external gear 2, and a measuring instrument. The base is detachably installed at the connection position between the flywheel housing and the starter motor. The rotating shaft 1 is installed on the base via a bearing. The internal gear 2 is installed at one end of the rotating shaft 1, extends into the flywheel housing, and meshes with the flywheel gear ring. The external gear 2 is installed at the other end of the rotating shaft 1, located outside the flywheel housing and close to the measuring instrument. The internal gear 2 and the external gear 2 rotate synchronously, and the measuring instrument detects the rotation of the external gear 2.

[0024] During measurement, the base is installed on the flywheel housing. The meshing of the internal gear 2 with the flywheel ring gear feeds back the meshing state to the external gear 3. The rotation of the external gear 3 reflects the gear clearance, which can clearly measure the clearance between the internal gear and the flywheel ring gear, improving the accuracy and convenience of the measurement.

[0025] Specifically, the two ends of the rotating shaft 1 are connected to the internal gear 2 and the external gear 2 respectively via a flat key 4, or they can be connected via a spline. Both the internal gear 2 and the external gear 2 have elastic retaining rings 5 ​​on their sides.

[0026] In one embodiment, the measuring instrument is specifically a magnetometer. In another embodiment, the measuring instrument is specifically a vision camera.

[0027] Based on the diesel engine flywheel gear clearance detection device provided in the above specific embodiments, the base includes an inner base plate 6 and an outer base plate 7 arranged opposite to each other. The rotating shaft 1 passes through the inner mounting through hole of the inner base plate 6 and the outer mounting through hole of the outer base plate 7. The bearing is installed in the inner mounting through hole and the outer mounting through hole. The inner mounting through hole and the outer mounting through hole are stepped holes. An inner cover plate 8 is installed on the outside of the inner mounting through hole, and an outer cover plate 9 is installed on the outside of the outer mounting through hole.

[0028] The inner cover plate 8 is connected to the inner bottom plate 6 by hexagonal bolts, and the outer cover plate 9 is connected to the outer bottom plate 7 by hexagonal bolts. Other connection methods, such as snap-fit, can also be used, all of which are within the protection scope of this utility model.

[0029] Specifically, the bearing is a deep groove ball bearing 10. A sleeve 11 is installed between the inner base plate 6 and the outer base plate 7, surrounding the middle of the rotating shaft 1. The inner base plate 6 and the outer base plate 7 are welded to both ends of the sleeve 11.

[0030] The diesel engine flywheel gear clearance detection device provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A diesel engine flywheel gear clearance detection device, characterized in that, The device includes a base, a rotating shaft (1), an internal gear (2), an external gear (3), and a measuring instrument. The base is detachably installed at the connection position between the flywheel housing and the starter motor. The rotating shaft (1) is installed on the base via a bearing. One end of the internal gear (2) is installed on the rotating shaft (1) and extends into the flywheel housing, meshing with the flywheel ring gear. The other end of the external gear (3) is installed on the rotating shaft (1) and is located outside the flywheel housing and close to the measuring instrument. The internal gear (2) and the external gear (3) rotate synchronously. The measuring instrument detects the rotation of the external gear (3).

2. The diesel engine flywheel gear clearance detection device according to claim 1, characterized in that, The two ends of the rotating shaft (1) are connected to the internal gear (2) and the external gear (3) respectively by a flat key (4).

3. The diesel engine flywheel gear clearance detection device according to claim 2, characterized in that, Both the internal gear (2) and the external gear (3) are provided with shaft elastic retaining rings (5) on their sides.

4. The diesel engine flywheel gear clearance detection device according to claim 1, characterized in that, The measuring instrument is specifically a magnetometer.

5. The diesel engine flywheel gear clearance detection device according to claim 1, characterized in that, The measuring instrument is specifically a vision camera.

6. The diesel engine flywheel gear clearance detection device according to any one of claims 1 to 5, characterized in that, The base includes an inner base plate (6) and an outer base plate (7) arranged opposite to each other. The rotating shaft (1) passes through the inner mounting through hole of the inner base plate (6) and the outer mounting through hole of the outer base plate (7). The bearing is installed in the inner mounting through hole and the outer mounting through hole.

7. The diesel engine flywheel gear clearance detection device according to claim 6, characterized in that, The inner mounting through hole and the outer mounting through hole are stepped holes. An inner cover plate (8) is installed on the outside of the inner mounting through hole, and an outer cover plate (9) is installed on the outside of the outer mounting through hole.

8. The diesel engine flywheel gear clearance detection device according to claim 7, characterized in that, The inner cover plate (8) is connected to the inner bottom plate (6) by hexagonal bolts, and the outer cover plate (9) is connected to the outer bottom plate (7) by hexagonal bolts.

9. The diesel engine flywheel gear clearance detection device according to claim 8, characterized in that, The bearing is specifically a deep groove ball bearing (10).

10. The diesel engine flywheel gear clearance detection device according to claim 9, characterized in that, A sleeve (11) is installed between the inner bottom plate (6) and the outer bottom plate (7) around the middle of the rotating shaft (1), and the inner bottom plate (6) and the outer bottom plate (7) are welded to both ends of the sleeve (11).

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