Meshing mechanism of full-automatic turning gear

Abstract

The utility model discloses a meshing mechanism of a full-automatic turning gear, which comprises a main shaft lever, an output shaft lever and a driving motor and realizes power transmission through a meshing tooth group. A multi-meshing structure is adopted between the main shaft rod and the output shaft rod, the stress of a single gear is reduced, and the system stability is improved. The containing cabins used for being filled with lubricating powder are arranged in the transmission teeth, the lubricating powder is evenly dispersed to the tooth surfaces through the dispersing holes, and the lubricating effect is ensured when the gears are meshed. And stable operation of the gear under a high-load working condition is ensured through an automatically-controlled transmission clutch device. In addition, a positioning device is adopted, accurate matching of meshing components is guaranteed, and the reliability and durability of the transmission system are further improved. The utility model is suitable for the turning gear requiring high stability and high efficiency, and has strong application value.

Description

Technical Field

[0001] This utility model relates to the field of turning gears, specifically to the meshing mechanism of a fully automatic turning gear. Background Technology

[0002] The main function of the turbine turning gear is to rotate the turbine generator unit's shaft system before startup or after shutdown. The turning gear must be engaged before starting the turbine to make the shaft system rotate. After shutdown, due to the temperature difference between the upper and lower parts of the cylinder and flow path, the rotor will bend due to uneven heating in this non-uniform temperature field. To avoid this phenomenon, the turning gear must be automatically engaged when the turbine is shut down, allowing the rotor to continue rotating and ensuring a uniform temperature field around the rotor until the metal temperature of the cylinder drops below 150°C.

[0003] Traditional turbine turning gears typically use mechanical gear meshing mechanisms for transmission. However, due to prolonged use and high-load operation, the following problems often arise during gear meshing:

[0004] Severe gear wear: Traditional meshing structures often fail to effectively distribute the load on the gears, causing individual gears to bear excessive pressure. After prolonged operation, this easily leads to gear wear and tooth breakage. This not only affects the operating efficiency of the device but also shortens its service life.

[0005] Uneven lubrication: In traditional designs, the lubrication system is not perfect, and the distribution of lubricating oil or grease is uneven, which can easily cause dry friction and excessive wear on the gear surface. Especially under high-load working conditions, insufficient lubrication may cause excessive heat to be generated on the tooth surface, thereby affecting the working performance and stability of the gear.

[0006] Unstable meshing process: In traditional turning gears, the meshing and disengagement processes are usually simple and lack precise control, resulting in large instantaneous impact forces generated during meshing, which can easily damage gears and meshing components, thereby affecting the stability of the transmission system.

[0007] In view of this, we will study and improve the existing problems and provide a meshing mechanism for a fully automatic turning device to solve the current problems. The aim is to solve the problems and improve the practical value through this technology. Utility Model Content

[0008] This utility model relates to a meshing mechanism of a fully automatic turning device, which is particularly suitable for the turning of the shaft system before and after the turbine is started and stopped. It aims to improve the load-bearing capacity and stability of the gears through optimized meshing design, reduce gear wear and tooth surface breakage, and ensure long-term stable operation of the system under harsh conditions such as high load and high temperature.

[0009] Traditional turning gear mechanisms often suffer from unstable meshing, severe gear wear, and poor lubrication, which not only reduces system efficiency but also increases maintenance costs. Therefore, the purpose of this invention is to provide a meshing mechanism for a fully automatic turning gear mechanism. Through innovative gear design, lubrication scheme, and clutch control system, this invention solves the problems of unstable gear meshing, insufficient lubrication, and tooth surface damage caused by excessive load in existing technologies.

[0010] To solve the above-mentioned technical problems, the engagement mechanism of the fully automatic turning gear provided by this utility model includes the following components:

[0011] The main shaft and output shaft transmit power through a meshing gear set. The main shaft surface is provided with a keyed edge set and a slidably sleeved gear seat to form a stable transmission connection.

[0012] The surface of the drive disc has a meshing groove, which is engaged by the gear teeth to ensure a precise connection between the spindle and the output shaft.

[0013] Power is transmitted between the transmission gear and the meshing gear assembly through precision meshing. A receiving chamber is provided on the inner side of the transmission gear for adding lubricating powder. The lubricating powder is evenly distributed on the gear surface through discrete holes via centrifugal force, ensuring sufficient lubrication of the gear surface during meshing and reducing friction and heat accumulation.

[0014] The positioning device ensures the stability of the gear seat and the engagement groove during engagement and disengagement by means of magnetic locking or mechanical positioning pins, thus avoiding damage to the gears caused by unstable engagement.

[0015] The meshing gear assembly consists of several gears, which are respectively arranged on the surfaces of the main shaft and the output shaft and mesh with each other in a one-to-one manner. By designing a multi-meshing structure, the load is distributed to multiple gears and meshing surfaces, reducing the force on individual gears and enhancing the stability and strength of the meshing system.

[0016] The drive motor and the main shaft are connected by a gear sleeve for transmission clutch control. The gear sleeve controls the meshing state of the gears by engaging and disengaging with the drive disc, thereby adjusting the system's operating mode under different working conditions.

[0017] The engagement mechanism of this fully automatic turning device has the following beneficial effects:

[0018] Improve gear strength and stability: By adopting a multi-meshing structure, the load is distributed to multiple gears or meshing surfaces, thereby reducing the force on a single gear, increasing the overall stability and strength of the meshing system, and reducing the risk of gear damage.

[0019] Enhanced lubrication: By designing a lubricant powder filling and centrifugal distribution structure, sufficient lubrication is ensured during gear meshing, reducing friction and heat accumulation, and effectively extending gear service life.

[0020] Reduce tooth surface wear: High-strength alloy steel gears, after nitriding treatment, have stronger wear resistance, which can effectively slow down the wear of gears under high load and high temperature environments and reduce the risk of gear breakage. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the active disk and gear seat structure according to an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the transmission structure of the main shaft and output shaft according to an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the transmission gear structure according to an embodiment of the present invention.

[0025] Figure label:

[0026] 100. Main shaft; 110. Meshing gear set; 120. Keyway set; 200. Output shaft; 210. Transmission gear; 211. Reception chamber; 212. Sealing ring cover; 213. Discrete hole; 300. Drive motor; 310. Drive disc; 320. Gear holder; 311. Engagement groove. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0028] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0029] The following is in conjunction with the appendix Figures 1-4 The meshing mechanism of the fully automatic turning device provided in some embodiments of this utility model is described.

[0030] The main shaft 100 and the output shaft 200 are meshed and transmitted through a gear set 110. The main shaft 100 and the output shaft 200 work together through different gears, so that the output shaft can transmit power as the main shaft rotates.

[0031] The spindle 100 has a keyway assembly 120 on its surface for meshing with the gear sleeve 320 surface, ensuring a stable connection between the spindle and the gear sleeve. The gear sleeve 320 achieves a stable transmission connection with the keyway assembly 120 through its inner side, thereby effectively transmitting power.

[0032] In this embodiment, the output end of the drive motor 300 is connected to the drive disk 310. The drive disk 310 has a mating groove 311 on its surface. The groove design ensures that the gear seat 320 can be smoothly engaged with it, avoiding gaps or instability during meshing.

[0033] A transmission gear 210 is fixedly sleeved on the surface of the output shaft 200. This gear is designed to precisely mesh with the gear portion of the meshing gear assembly 110. A receiving chamber 211 is provided on the inner side of the transmission gear 210 for adding lubricating powder to maintain the lubrication performance during gear meshing and reduce friction and heat accumulation.

[0034] A sealing ring cover 212 is fixedly installed on the surface of the transmission gear 210 to ensure the sealing of lubricating powder during transmission and to prevent leakage or loss of lubricating powder. The outer periphery of the sealing ring cover 212 is also provided with evenly distributed discrete holes 213. These holes are designed to evenly disperse the lubricating powder onto the tooth surfaces of the meshing gear assembly 110 and the transmission gear 210 through centrifugal force, ensuring that the gears are adequately lubricated during operation, thereby reducing the risk of tooth surface fatigue, wear, and tooth breakage.

[0035] In this embodiment, the gear is made of high-strength alloy steel and has undergone nitriding treatment. Nitriding treatment can improve the hardness of the gear and increase its wear resistance, making it particularly suitable for environments with heavy long-term working loads and high temperatures. The nitrided gear surface has strong impact resistance and wear resistance, which can effectively extend the service life of the gear and reduce tooth surface damage caused by high loads.

[0036] In this embodiment, the gear holder 320 has a groove on its surface for engaging with a lever. The groove design allows for clutch control of the transmission between the main shaft 100 and the drive motor 300 when needed. During this process, the engagement between the gear holder 320 and the engagement groove 311 ensures stable operation of the gear system during transmission, and engagement and disengagement are achieved through lever adjustment. This allows for rapid switching of the gear's operating state when needed, thereby controlling the start and stop of power transmission.

[0037] In this embodiment, the positioning device can employ magnetic locking or mechanical positioning pins to ensure the stability of the gear seat 320 and the engagement groove 311 during engagement and disengagement. By using a positioning device, misalignment or disengagement of gears under high load conditions can be effectively prevented, thereby improving the stability and safety of system operation.

[0038] According to the working principle of the present invention, the lubrication system guides the lubricating powder from the discrete holes 213 of the transmission gear 210 to the meshing part through centrifugal force, ensuring uniform distribution of lubrication on the tooth surface. When the transmission gear 210 rotates, the internally distributed lubricating powder is centrifugally discharged through the discrete holes 213 and adheres to the tooth surface, forming a lubricating film, reducing friction and improving meshing efficiency.

[0039] Working principle and usage process of this utility model:

[0040] During operation, the drive motor 300 starts, driving the drive disc 310 to rotate. Through the meshing of the gear shear 311 and the gear holder 320, the main shaft 100 and the output shaft 200 are rotated. As the transmission gear 210 meshes with the meshing gear set 110, the transmission effectively transfers power from the drive end to the output end. During meshing, the system automatically adds lubricating powder to ensure smooth and stable gear engagement.

[0041] Meanwhile, the gear holder 320, through its connection with the engagement groove 311, controls the start and end of meshing, thus achieving transmission clutch engagement. The designed positioning device ensures that the gears maintain a precise meshing position even under high loads, preventing damage caused by improper meshing.

[0042] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0043] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The engagement mechanism of a fully automatic turning gear, characterized in that, include: The system includes a main shaft (100), an output shaft (200), a drive motor (300), and a meshing gear set (110) for surface transmission between the main shaft (100) and the output shaft (200). The main shaft (100) has a keyway set (120) on its surface and a slidably fitted gear holder (320). The output end of the drive motor (300) is connected to a drive disc (310), the drive disc (310) has a mating groove (311) on its surface, and one side of the gear holder (320) is provided with… There are insert teeth that mesh with the engagement groove (311). The inner side of the sleeve seat (320) meshes with the surface of the key rib group (120). The output shaft rod (200) is fixedly sleeved with a transmission tooth (210). The inner side of the transmission tooth (210) is provided with a receiving chamber (211) for adding lubricating powder. The surface of the transmission tooth (210) is fixedly installed with a sealing ring cover (212), and the surface of the transmission tooth (210) is provided with discrete holes (213) distributed on the outer periphery of the sealing ring cover (212).

2. The engagement mechanism of the fully automatic turning device according to claim 1, characterized in that, The meshing gear set (110) includes several gears arranged on the surfaces of the main shaft (100) and the output shaft (200) respectively, and meshing and transmitting power in a one-to-one manner.

3. The engagement mechanism of the fully automatic turning gear according to claim 1, characterized in that, The transmission teeth (210) on the surface of the output shaft (200) mesh with the surface of the meshing gear group (110), and the discrete holes (213) on the surface of the transmission teeth (210) are arranged obliquely.

4. The engagement mechanism of the fully automatic turning gear according to claim 1, characterized in that, The tooth holder (320) has a groove on its surface for engaging with a paddle, and the tooth holder (320) has a tooth-opposing engagement groove (311) on its surface. The main shaft (100) is rotatably connected to the surface of the drive motor (300).

5. The engagement mechanism of the fully automatic turning device according to claim 1, characterized in that, The gears between the meshing gear set (110) and the output shaft (200) are made of high-strength alloy steel and are nitrided to improve the hardness and wear resistance of the tooth surface.

6. The engagement mechanism of the fully automatic turning gear according to claim 1, characterized in that, The keyway assembly (120) is provided with a positioning device on its surface to ensure the stability of the engagement and disengagement states of the sleeve tooth seat (320) and the engagement groove (311).

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