Electric turning gear of marine main engine

Abstract

The utility model provides an electric turning gear of a marine main engine, which relates to the technical field of marine main engines and comprises a machine body, a spindle motor is mounted on the inner wall of the top of one side of the machine body, the output end of the spindle motor is fixedly connected with a main rotating shaft, and the main rotating shaft penetrates through a main gear; transmission lead screws are installed on the upper portion and the lower portion of the inner wall of the other side of the machine body correspondingly, the ends of the transmission lead screws are connected with the output end of a servo motor, the outer walls of the transmission lead screws are in threaded connection with threaded sleeves, driving motors are installed on the outer walls of the threaded sleeves, and rotating shafts are fixedly installed at the output ends of the driving motors; the rotating shaft penetrates through the driving gear; and a self-adaptive assembly is arranged in the rotating shaft. The self-adaptive assembly is arranged and matched with the arc-shaped clamping blocks, so that a gap formed between every two adjacent arc-shaped strips can enable the driving gear to drive the arc-shaped clamping blocks to rotate by a certain angle, meshing action can be completed, and the situation that the driving gear and the main gear are stuck is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of ship main engines, in particular to an electric turning machine for ship main engines. Background Art

[0002] Cranking means turning the motor a few times manually before starting the motor, in order to determine whether the load driven by the motor is stuck and the resistance is increased, so as not to increase the starting load of the motor and damage the motor. To ensure the normal use of the ship's main engine, cranking is usually performed before using the ship's main engine to determine whether the ship's main engine is in normal condition, so an electric cranking machine for the ship's main engine is required.

[0003] According to a disclosed improved electric cranking machine for ship main engine (publication number: CN111216854A), when the device of this patent is not in use, the driving gear and the main gear do not contact each other, and will not affect the use of the ship main engine. When cranking detection is required, the driving gear and the main gear are controlled to mesh through the transmission mechanism. At this time, the first motor is started to make the main gear start to rotate. In conjunction with the magnet installed on the main gear, the time interval of the voltage peak is measured by the Hall sensor, and compared with the normal interval through the processor to determine whether the ship main engine has a fault.

[0004] However, in actual use of the above device, the driving gear and the main gear are in a separated state during the operation of the ship's main engine. When the two move to a meshing state, it is easy for the teeth and gaps to not be aligned, which can easily lead to jamming or misalignment between the driving gear and the main gear, affecting the accuracy of subsequent test data, and also causing excessive wear on the driving gear and the main gear, affecting the service life of the ship's main engine. In view of this, an improved electric turning machine for ship's main engine is proposed. Utility Model Content

[0005] The utility model provides a ship main engine electric turning machine, which solves the problem that the existing main engine electric turning machine may get stuck or distorted between the driving gear and the main gear during actual use, thus affecting the accuracy of subsequent test data.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A ship main engine electric turning machine comprises a machine body, a spindle motor is installed on the top inner wall of one side of the machine body, the output end of the spindle motor is fixedly connected to the main rotating shaft, and the main rotating shaft passes through the main gear; transmission screws are respectively installed on the upper and lower inner walls of the other side of the machine body, the ends of the transmission screws are connected to the output end of the servo motor, the outer wall of the transmission screw is threadedly connected with a threaded sleeve, the outer wall of the threaded sleeve is installed with a driving motor, the output end of the driving motor is fixedly installed with a rotating shaft, and the rotating shaft passes through the driving gear; an auxiliary meshing component is arranged on the arc-shaped outer wall of the driving gear, and an adaptive component is arranged inside the rotating shaft.

[0008] Furthermore, a circular hole is provided at the center of the driving gear, an arc-shaped clamping block is provided on the inner surface of the circular hole, and a small suction cup is fixedly installed on the side wall of the arc-shaped clamping block.

[0009] Furthermore, the adaptive component comprises arcuate bars, and a plurality of groups of the arcuate bars are evenly distributed on the arcuate outer wall of the rotating shaft in a circular array, and the arcuate clamping block is arranged in a gap between two adjacent groups of arcuate bars.

[0010] Furthermore, the rotating shaft passes through the baffle, the baffle is fixedly connected to the rotating shaft, the rotating shaft is fixedly connected to the driving gear, and the driving gear is meshed with the main gear.

[0011] Furthermore, the auxiliary engaging assembly includes teeth, the inner wall of the teeth is fixedly connected to one end of a reset spring, the other end of the reset spring is fixedly mounted with a U-shaped slider, and the inner surface of the U-shaped slider is rotatably mounted with an abutment wheel.

[0012] Furthermore, a receiving groove is provided in the tooth, and the reset spring, the V-shaped slider and the abutment wheel are arranged in the receiving groove. The number of the receiving grooves is two groups, and the two groups of receiving grooves are arranged in a mirror-like manner on both sides of the tooth.

[0013] Furthermore, the main gear is fixedly connected to the main rotating shaft, a magnet runs through the interior of the main gear, and the magnet is fixedly connected to the main gear.

[0014] Furthermore, a Hall sensor is installed on the inner wall of the body, an audible and visual alarm is installed on the top outer wall of the body, and proximity switches are fixedly installed on the upper and lower inner walls of the body.

[0015] Furthermore, a processor is arranged inside the body, and the processor is electrically connected to the servo motor, the drive motor, the sound and light alarm, the proximity switch and the Hall sensor.

[0016] Furthermore, the proximity switch and the threaded sleeve are arranged in the same plane, and the Hall sensor and the bottom end of the magnet are arranged in the same plane.

[0017] The beneficial effects of the present utility model are as follows:

[0018] By providing an adaptive component and cooperating with the arc-shaped strip and the arc-shaped clamping block, a gap formed between two adjacent arc-shaped strips will provide redundancy for the driving gear to drive the arc-shaped clamping block to rotate a certain angle, enabling it to complete the meshing action and avoiding jamming between the driving gear and the main gear.

[0019] By providing an auxiliary meshing component and cooperating with the return spring and the abutting wheel, the rolling friction of the abutting wheel is used to replace the sliding friction on the outer wall of the tooth, and the apex angle position is set to prevent the teeth of the driving gear and the main gear from jamming, ensuring the close meshing effect between the driving gear and the main gear, thereby ensuring the accuracy of the detection data and the safety of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a schematic diagram of the main structure of the present utility model.

[0022] Figure 2 It is a schematic diagram of the partial exploded structure of the driving gear of the present utility model.

[0023] Figure 3 It is a schematic diagram of the partial sectional structure of the driving gear of the present utility model.

[0024] Figure 4 It is a schematic diagram of the partial three-dimensional structure of the abutting wheel of the present utility model.

[0025] Explanation of the reference numerals in the drawings:

[0026] 1, body; 2, main shaft motor; 3, main rotating shaft; 4, main gear; 5, magnet; 6, Hall sensor; 7, sound and light alarm; 8, proximity switch; 9, transmission lead screw; 10, servo motor; 11, threaded sleeve; 12, drive motor; 13, rotating shaft; 14, driving gear; 15, arc-shaped strip; 16, baffle; 17, arc-shaped clamping block; 18, small suction cup; 19, tooth; 20, return spring; 21, U-shaped slider; 22, abutting wheel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings 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. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0029] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0030] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the utility model. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0031] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present utility model: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0032] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0033] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0034] The utility model provides a technical solution: an electric turning machine for a ship main engine, such as Figure 1-4As shown, it includes a body 1, a spindle motor 2 is fixedly installed on the top inner wall of the body 1, a main rotating shaft 3 is fixedly connected to the output end of the spindle motor 2, the main rotating shaft 3 passes through the main gear 4, and the main gear 4 is fixedly connected to the main rotating shaft 3, a magnet 5 passes through the inside of the main gear 4, and the magnet 5 is fixedly connected to the main gear 4, a Hall sensor 6 is fixedly installed on one side wall of the body 1, an audible and visual alarm 7 is fixedly installed on the top outer wall of the body 1, a proximity switch 8 is fixedly installed on the upper and lower inner walls of the body 1, a transmission screw 9 is rotatably installed on the inner wall of the other side of the body 1, a servo motor 10 is fixedly installed on the inner wall of the body 1, the end of the transmission screw 9 is connected to the output end of the servo motor 10, and the transmission screw 9 is fixedly installed on the output end of the servo motor 10. A threaded sleeve 11 is threadedly connected to the outer wall, and a driving motor 12 is fixedly installed on the outer wall of the threaded sleeve 11 near the center of the body 1. A rotating shaft 13 is fixedly installed on the output end of the driving motor 12. The rotating shaft 13 passes through a driving gear 14, and the driving gear 14 is fixedly connected to the rotating shaft 13. An adaptive component is arranged inside the rotating shaft 13, and the adaptive component includes an arc bar 15. The arc bar 15 is fixedly installed on the arc-shaped outer wall of the rotating shaft 13. The rotating shaft 13 passes through a baffle 16, and the baffle 16 is fixedly connected to the rotating shaft 13. A circular hole is opened at the center of the driving gear 14, and an arc-shaped block 17 is opened on the arc-shaped inner surface of the circular hole. A small suction cup 18 is fixedly installed on the side wall of the arc block 17.

[0035] A processor is provided inside the body 1, and the processor is electrically connected to the servo motor 10, the drive motor 12, the sound and light alarm 7, the proximity switch 8 and the Hall sensor 6. At the same time, the Hall sensor 6 and the bottom end of the magnet 5 are arranged in the same plane, so that the movement of the magnet 5 can be more accurately captured and sensed by the Hall sensor 6. In addition, the drive gear 14 can mesh with the main gear 4 to realize transmission, the proximity switch 8 and the threaded sleeve 11 are arranged in the same plane, and the output end of the servo motor 10 is fixedly connected to the end of the transmission screw 9. At the same time, the servo motor 10 is a self-locking motor. When the servo motor 10 stops starting, the transmission screw 9 will not rotate. When the main rotating shaft 3 needs to be tested, the servo motor 10 is started by controlling the processor to make the transmission screw 9 start to rotate, and the threaded sleeve 11 is moved horizontally along the inner wall of the body 1. Right movement, and when the driving gear 14 is meshed and matched with the main gear 4, the threaded sleeve 11 just abuts against the proximity switch 8, so that the proximity switch 8 sends a signal to the processor. At this time, the processor controls to turn off the servo motor 10, and starts the driving motor 12 at this time, so that the driving motor 12 drives the rotating shaft 13 to rotate, so as to drive the driving gear 14 to rotate, thereby driving the main gear 4 to rotate, so that the magnet 5 periodically affects the voltage of the Hall sensor 6, so that the voltage in the Hall sensor 6 will have a peak when the magnet 5 moves to the closest point, and the tested peak data will be transmitted to the processor, and the processor will determine whether the peak data is consistent with the normal peak data. If not, the processor will control the sound and light alarm 7 to sound an alarm, and at the same time control the driving motor 12 to stop working, so as to facilitate the staff to maintain and repair the main rotating shaft 3 in time.

[0036] There are multiple groups of arc strips 15 arranged on the arc-shaped outer wall of the rotating shaft 13, and the multiple groups of arc strips 15 are evenly distributed on the arc-shaped outer wall of the rotating shaft 13 in a circular array, and the arc block 17 is arranged in the gap between two adjacent groups of arc strips 15, so that when the driving gear 14 and the main gear 4 approach each other and achieve meshing, if there is a situation of abutment without direct meshing, the gap between the two adjacent groups of arc strips 15 will give the driving gear 14 to drive the arc block 17 to rotate a certain angle of redundancy, so that it can complete Meshing action prevents jamming between the driving gear 14 and the main gear 4; baffles 16 are respectively arranged on the upper and lower sides of the driving gear 14 to provide support and limit for the driving gear 14 to prevent it from shifting on the rotating shaft 13. At the same time, there are several small suction cups 18, and several small suction cups 18 are mirror-distributed on both sides of the arc-shaped block 17, so that when the rotating shaft 13 rotates, the relative stability between the rotating shaft 13 and the driving gear 14 is guaranteed, thereby ensuring the safety of the testing process of the main rotating shaft 3.

[0037] In addition, in order to better facilitate the docking of the driving gear 14 and the main gear 4, an auxiliary meshing assembly is provided on the arc-shaped outer wall of the driving gear 14. The auxiliary meshing assembly includes teeth 19. The teeth 19 are fixedly installed on the arc-shaped outer wall of the driving gear 14. The inner wall of the teeth 19 is fixedly connected to the end of a return spring 20. The other end of the return spring 20 is fixedly connected to a U-shaped slider 21. A contact wheel 22 is rotatably installed on the inner surface of the U-shaped slider 21.

[0038] A number of groups of auxiliary meshing assemblies are provided, and the number of groups of auxiliary meshing assemblies are evenly distributed in a circumferential array on the arc-shaped outer wall of the driving gear 14. At the same time, a receiving groove for accommodating the return spring 20, the U-shaped slider 21 and the contact wheel 22 is provided on the inner wall of the teeth 19. And the above-mentioned receiving groove, the return spring 20, the U-shaped slider 21 and the contact wheel 22 are all provided in two groups, and the two groups of receiving grooves, the return spring 20, the U-shaped slider 21 and the contact wheel 22 are mirror-symmetrically arranged on both sides of the teeth 19, so that the teeth 19 can better play the role of preventing jamming when the driving gear 14 and the main gear 4 are engaged. The rolling friction of the contact wheel 22 is used to replace the sliding friction on the outer wall of the teeth 19, and through the set apex position, it is prevented that the teeth between the driving gear 14 and the main gear 4 are jammed, ensuring the close meshing effect between the driving gear 14 and the main gear 4, thereby ensuring the accuracy of the detection data and the safety of the equipment.

[0039] During use, the processor controls the servo motor 10 to start, so that the transmission lead screw 9 starts to rotate, and the threaded sleeve 11 moves horizontally to the right along the inner wall of the machine body 1. When the driving gear 14 meshes and matches with the main gear 4, the threaded sleeve 11 just abuts against the proximity switch 8, so that the proximity switch 8 sends a signal to the processor. At this time, the processor controls to turn off the servo motor 10. At this time, the driving motor 12 is started, so that the driving motor 12 drives the rotating shaft 13 to rotate, drives the driving gear 14 to rotate, and drives the main gear 4 to rotate, so that the magnet 5 periodically affects the voltage of the Hall sensor 6, and the voltage in the Hall sensor 6 will peak when the magnet 5 moves to the closest position. The measured peak data will be transmitted to the processor, and the processor judges whether the peak data is consistent with the normal peak data. If not, the processor controls the sound and light alarm 7 to give an alarm, and at the same time controls the driving motor 12 to stop working, so as to facilitate the staff to maintain and repair the main rotating shaft 3 in time.

[0040] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent replacements or changes, and should be covered within the protection scope of the present invention.

Claims

1. An electric turning machine for a ship main engine, characterized in that: It includes a body (1). On the inner wall at the top of one side of the body (1), a main shaft motor (2) is installed. The output end of the main shaft motor (2) is fixedly connected to a main rotating shaft (3), and the main rotating shaft (3) penetrates through a main gear (4). On the inner wall of the other side of the body (1), a transmission lead screw (9) is respectively installed up and down. The end of the transmission lead screw (9) is connected to the output end of a servo motor (10). A threaded sleeve (11) is threadedly connected to the outer wall of the transmission lead screw (9). A driving motor (12) is installed on the outer wall of the threaded sleeve (11). The output end of the driving motor (12) is fixedly installed with a rotating shaft (13), and the rotating shaft (13) penetrates through a driving gear (14). An auxiliary meshing component is arranged on the arc-shaped outer wall of the driving gear (14), and an adaptive component is arranged inside the rotating shaft (13).

2. The electric turning machine for main engine of a ship according to claim 1, characterized in that: A circular hole is opened at the center of the driving gear (14), and an arc-shaped block (17) is opened on the inner surface of the circular hole. A small suction cup (18) is fixedly installed on the side wall of the arc-shaped block (17).

3. The electric turning machine for ship main engine according to claim 1, characterized in that: The adaptive component includes arc-shaped strips (15). Several groups of the arc-shaped strips (15) are evenly distributed in a circumferential array on the arc-shaped outer wall of the rotating shaft (13). The arc-shaped block (17) is arranged in the gap between two adjacent arc-shaped strips (15).

4. The electric turning machine for main engine of a ship according to claim 1, characterized in that: The rotating shaft (13) penetrates through a baffle (16). The baffle (16) is fixedly connected to the rotating shaft (13). The rotating shaft (13) is fixedly connected to the driving gear (14), and the driving gear (14) meshes with the main gear (4).

5. The electric turning machine for main engine of a ship according to claim 1, characterized in that: The auxiliary meshing component includes teeth (19). One end of a return spring (20) is fixedly connected to the inner wall of the teeth (19). The other end of the return spring (20) is fixedly installed with a U-shaped slider (21). A contact wheel (22) is rotatably installed on the inner surface of the U-shaped slider (21).

6. The electric turning machine for main engine of a ship according to claim 5, characterized in that: A receiving groove is arranged inside the teeth (19). The return spring (20), the U-shaped slider (21) and the contact wheel (22) are arranged in the receiving groove. The number of the receiving grooves is two groups, and the two groups of receiving grooves are arranged in a mirror image on both sides of the teeth (19).

7. The electric turning machine for main engine of a ship according to claim 1, characterized in that: The main gear (4) is fixedly connected to the main rotating shaft (3). A magnet (5) penetrates through the inside of the main gear (4), and the magnet (5) is fixedly connected to the main gear (4).

8. The electric turning machine for main engine of a ship according to claim 1, characterized in that: A Hall sensor (6) is installed on the inner wall of the body (1). An audible and visual alarm (7) is installed on the outer wall at the top of the body (1). Proximity switches (8) are fixedly installed on the upper and lower inner walls of the body (1).

9. The electric turning machine for main engine of a ship according to claim 1, characterized in that: A processor is arranged inside the body (1). The processor is electrically connected to the servo motor (10), the driving motor (12), the audible and visual alarm (7), the proximity switches (8) and the Hall sensor (6).

10. The electric turning machine for main engine of a ship according to claim 9, characterized in that: The proximity switch (8) and the threaded sleeve (11) are arranged in the same plane. The Hall sensor (6) and the bottom end of the magnet (5) are arranged in the same plane.

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