A wear-resistant gear transmission mechanism

Abstract

This utility model relates to a wear-resistant gear transmission mechanism, comprising two meshing gears and a rotating shaft for mounting the two gears. The rotating shaft is also equipped with annular guide plates, two symmetrical guide plates located on both sides of the gears, and the guide plates are closely attached to the left and right sides of the gears. The guide plates rotate synchronously with the rotating shaft and the gears. The guide plates, positioned on the outer side of the gears in the gear transmission structure, guide lubricating oil to the gear tooth surfaces, thereby increasing lubrication and reducing wear during transmission.

Description

Technical Field

[0001] This utility model relates to the field of mechanical transmission device technology, specifically a wear-resistant gear transmission mechanism. Background Technology

[0002] Gear transmission is the most widely used mechanical transmission method, characterized by its accurate transmission and high efficiency. However, mechanical transmissions inevitably experience some degree of backlash during operation. This is due to the friction between the transmission components during contact. Over time, this friction causes wear on the surfaces of the transmission components, leading to gaps. The visible manifestation of this gap is increased vibration, which further exacerbates wear.

[0003] For gear transmissions, wear primarily occurs on the gear teeth. The meshing of teeth between gears used for transmission inevitably leads to wear on the tooth surfaces due to prolonged relative sliding. To reduce wear, besides designing gears with a closed structure to prevent particles from entering the meshing surfaces, it's also necessary to immerse the gears in lubricating oil to ensure mutual lubrication between the tooth surfaces. This maximizes the reduction of gear wear.

[0004] During gear rotation, centrifugal force is generated, causing the lubricating oil adhering to the gear to be thrown out, which can easily lead to insufficient lubrication when the gear teeth are in contact. In addition, uneven adhesion of lubricating oil on the gear surface during operation can also lead to uneven lubrication. Existing designs include oil guide channels inside the gear, which guide lubricating oil to the tooth surface through these channels. However, this design has significant problems. Firstly, from a manufacturing perspective, gears are relatively hard materials, making it difficult to create internal channels and affecting the overall integrity of the gear, potentially shortening its lifespan. Furthermore, designing the oil guide channels at the tooth surface makes them more prone to wear during gear meshing. Summary of the Invention

[0005] This utility model is a wear-resistant gear transmission mechanism. It has a guide plate on the outside of the gear in the gear transmission structure to guide the lubricating oil. The guide plate guides the lubricating oil to the tooth surface of the gear, thereby increasing lubrication and reducing wear during transmission.

[0006] The present invention adopts the following technical solution:

[0007] A wear-resistant gear transmission mechanism includes two meshing gears and a rotating shaft for mounting the two gears; the rotating shaft is also provided with an annular guide plate, and two symmetrical guide plates are provided on both sides of the gears, and the guide plates are close to the left and right sides of the gears, and the guide plates rotate synchronously with the rotating shaft and the gears.

[0008] The guide plate is a circular plate structure. The diameter of the outer edge of the guide plate is larger than the diameter of the root circle of the gear but smaller than the diameter of the pitch circle of the gear. An L-shaped ring plate is provided on the outer edge of the guide plate. The ring plate and the guide plate form an oil groove facing the center. The ring plate and the gear are arranged on both sides of the guide plate. The guide plate at the bottom of the oil groove is provided with uniformly distributed oil holes. The oil holes are laterally aligned with the teeth on the gear, and the inner side of the oil holes is connected to the oil groove.

[0009] The guide plate has a sliding sleeve at its center for mounting on the rotating shaft. The sliding sleeve has evenly distributed circumferential screw holes, and a tightening bolt is installed in the screw holes to fix the sliding sleeve and the guide plate on the rotating shaft.

[0010] Furthermore, the outer side of the guide plate is also provided with a guide plate for guiding the lubricating oil into the oil sump.

[0011] The diversion plate is an overall ring structure, and the end face of the diversion plate is L-shaped. The diversion plate is installed on the outside of the guide plate by bolts. The cylindrical part at the center of the diversion plate is close to the outside of the guide plate and there is a gap between it and the ring plate. There is a gap between the side of the diversion plate and the outer side of the ring plate.

[0012] Furthermore, the inner side of the drainage plate is provided with an arc-shaped plate that supports the outer side of the ring plate. The arc-shaped plate is provided with multiple evenly distributed pieces, and the arc-shaped plate is inclined towards the rotation direction of the gear.

[0013] The present invention, by adopting the above-described technical solution, has the following beneficial effects:

[0014] This device features a flow guide structure on the outside of the gear to direct lubricating oil to the gear tooth surface. This ensures the adhesion of the lubricating oil to the tooth surface, increasing the lubrication effect during gear meshing and thus reducing wear on the gear tooth surface. Furthermore, this structure is externally mounted, so it does not alter the gear's structure or shape, and will not cause a reduction in gear strength or additional damage. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the present invention.

[0016] Figure 2 This is a schematic diagram showing the disassembled parts of this utility model.

[0017] Figure 3 for Figure 2 A diagram from another angle.

[0018] Figure 4 This is a partial cross-sectional view of the combination of the deflector and the guide vane. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments. It should be understood that the following embodiments are only one or more manifestations of the present invention and are not a complete limitation on the invention content recorded in this application. Any improvements made based on the invention content or technical solution recorded in this application that are known to those skilled in the art should fall within the scope of protection claimed in this application.

[0020] Furthermore, the descriptions of directions such as up, down, left, right, front, and back presented in the specific embodiments are merely for the purpose of describing the technical solutions and are not absolute limitations unless otherwise stated.

[0021] like Figures 1-4 The wear-resistant gear transmission mechanism shown includes two meshing gears 1 and a rotating shaft 2 for mounting the two gears 1; the rotating shaft 2 is also provided with an annular guide plate 3, and the guide plate 3 is provided with two symmetrical pieces on both sides of the gear 1, and the guide plate 3 is close to the left and right sides of the gear 1, and the guide plate 3 rotates synchronously with the rotating shaft 2 and the gear 1.

[0022] The guide plate 3 is a circular plate structure. The diameter of the outer edge of the guide plate 3 is larger than the diameter of the root circle of the gear 1 but smaller than the diameter of the pitch circle of the gear 1. An L-shaped ring plate 4 is provided on the outer edge of the guide plate 3. The ring plate 4 and the guide plate 3 form an oil groove 5 facing the center. The ring plate 4 and the gear 1 are arranged on both sides of the guide plate 3. The guide plate 3 at the bottom of the oil groove 5 is provided with uniformly distributed oil holes 6. The oil holes 6 are laterally corresponding to the teeth on the gear 1, and the inner side of the oil holes 6 is connected to the oil groove 5.

[0023] The guide plate 3 is provided with a sliding sleeve 7 at the center to mount it on the rotating shaft 2. The sliding sleeve 7 is provided with circumferentially evenly distributed screw holes 701. The screw holes 701 are provided with tightening bolts 702, which fix the sliding sleeve 7 and the guide plate 3 on the rotating shaft 2.

[0024] Furthermore, the outer side of the guide plate 3 is also provided with a guide plate 8 for guiding the lubricating oil, and the guide plate 8 guides the lubricating oil into the oil tank 5.

[0025] The diversion plate 8 is an overall ring structure, and the end face of the diversion plate 8 is L-shaped. The diversion plate 8 is installed on the outside of the guide plate 3 by bolts 801. The cylindrical part at the center of the diversion plate 8 is close to the outside of the guide plate 3 and there is a gap between it and the ring plate 4. There is a gap between the side of the diversion plate 3 and the outer side of the ring plate 4.

[0026] Furthermore, the inner side of the drainage plate 8 is provided with an arc-shaped plate 802 that supports the outer side of the ring plate 4. The arc-shaped plate 802 is provided with multiple evenly distributed pieces, and the arc-shaped plate 802 is inclined towards the rotation direction of the gear 1.

[0027] When this device is in use, the guide plate and the diverting plate rotate together with the rotating shaft. During the process, under the action of the arc plate, the lubricating oil enters the oil groove on the inner side of the ring plate along the space between the diverting plate and the ring plate, and then enters the tooth surface through the oil hole. The guide plate generates a certain centrifugal force during rotation, so the lubricating oil in the oil groove has a certain pressure when it enters the tooth surface through the oil hole, and it is sprayed out in a transverse manner. Therefore, although the gear will have a certain centrifugal force, the transverse spray structure can still ensure that the lubricating oil falls on the tooth surface to the maximum extent.

[0028] The design of the diversion plate is to address situations where the lubricating oil level is low. When the lubricating oil level is higher than the inner bottom of the ring plate, the oil can still enter the oil tank even without the diversion plate installed. With the diversion plate installed, the situation where the oil level is low can be addressed. The structure of the arc plate can guide the lubricating oil upward and into the oil tank.

Claims

1. A wear-resistant gear transmission mechanism comprising two gears which are engaged with each other and a rotating shaft on which the two gears are mounted, characterized in that: The rotating shaft is also provided with an annular guide plate. There are two symmetrical guide plates on both sides of the gear, and the guide plates are close to the left and right sides of the gear. The guide plates rotate synchronously with the rotating shaft and the gear.

2. A wear-resistant gear drive mechanism according to claim 1, characterized in that: The guide plate is a circular plate structure. The diameter of the outer edge of the guide plate is larger than the diameter of the root circle of the gear but smaller than the diameter of the pitch circle of the gear. An L-shaped ring plate is provided on the outer edge of the guide plate. The ring plate and the guide plate form an oil groove facing the center. The ring plate and the gear are arranged on both sides of the guide plate. The guide plate at the bottom of the oil groove is provided with evenly distributed oil holes. The oil holes are laterally aligned with the teeth on the gear, and the inner side of the oil holes is connected to the oil groove.

3. A wear-resistant gear drive mechanism according to claim 2, characterized in that: The guide plate has a sliding sleeve at its center for mounting on the rotating shaft. The sliding sleeve has evenly distributed circumferential screw holes, and a tightening bolt is installed in the screw holes to fix the sliding sleeve and the guide plate on the rotating shaft.

4. A wear-resistant gear drive mechanism according to claim 3, characterized in that: The outer side of the guide plate is also provided with a guide plate to guide the lubricating oil into the oil tank.

5. A wear-resistant gear drive according to claim 4, characterized in that: The diversion plate is an overall ring structure, and the end face of the diversion plate is L-shaped. The diversion plate is installed on the outside of the guide plate by bolts. The cylindrical part at the center of the diversion plate is close to the outside of the guide plate and there is a gap between it and the ring plate. There is a gap between the side of the diversion plate and the outer side of the ring plate.

6. A wear-resistant gear drive mechanism according to claim 5, characterized in that: The inner side of the diversion plate is provided with an arc-shaped plate that supports the outer side of the ring plate. The arc-shaped plate is provided with multiple evenly distributed pieces, and the arc-shaped plate is inclined towards the rotation direction of the gear.

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