Novel high-strength high-sealing drum gear coupling

Abstract

The utility model relates to a novel high-strength high-sealing drum gear coupling, including drive end inner shaft sleeve, drive end outer shaft sleeve, driven end inner shaft sleeve, driven end outer shaft sleeve, the drive end outer shaft sleeve sets up the drive end inner shaft sleeve outside, and the driven end outer shaft sleeve sets up the driven end inner shaft sleeve outside, the drive end outer shaft sleeve is fixed with the driven end outer shaft sleeve, the drive end outer shaft sleeve is equipped with a plurality of pairs of teeth that bite each other on the connecting surface with the driven end outer shaft sleeve, and the pair of teeth is embedded with the installation first O type ring, the side of drive end outer shaft sleeve or driven end outer shaft sleeve is equipped with the oil injection mouth, the utility model discloses a pair of teeth is set up on the connecting surface of drive end outer shaft sleeve and driven end outer shaft sleeve and increases the torque, thereby effectively enhanced the carrying capacity, and the inside and outside shaft sleeve are connected through the side tooth, and the tooth surface friction and abrasion are reduced after setting a pair of teeth, prolong the life, and also reduce the noise, and the first O type ring and the second O type ring are set up and are sealed and further reduce the noise.

Description

Technical Field

[0001] This utility model belongs to the technical field of drum-shaped gear couplings, and specifically relates to a novel high-strength, high-sealing drum-shaped gear coupling. Background Technology

[0002] Gear couplings are key mechanical components widely used in heavy-duty, high-speed transmission systems. They achieve power transmission between shafts through the meshing of internal and external teeth and possess a certain degree of angular and axial compensation capability. In actual operation, the reliability and lifespan of the coupling directly affect the stability and maintenance costs of the entire transmission system.

[0003] Traditional drum-type gear couplings have the following prominent problems in use: 1. Frequent inspection and tightening of connecting bolts are necessary: ​​During long-term operation, the connecting bolts of the coupling are prone to loosening due to vibration, load fluctuations, and other factors. If not tightened in time, this can lead to misalignment of transmission components, abnormal meshing, bolt breakage, or even transmission failure. Therefore, maintenance personnel must regularly perform shutdown inspections and tightening operations, which not only increases the workload of maintenance but also affects the efficiency of continuous equipment operation.

[0004] 2. Complex Lubrication Management and High Consumption: Under normal operating conditions, this type of coupling requires grease replenishment every 1-2 months; in heavy-load, high-speed, or high-temperature environments, the lubrication cycle may even need to be shortened to 0.5-1 month. Because the coupling generates significant centrifugal force during high-speed operation, coupled with high frictional temperature rise, the injected grease is easily thrown out and cannot be retained in the meshing area of ​​the gear teeth for a long time. Insufficient lubrication will accelerate the wear of the transmission gear surfaces, shorten the service life of the coupling, and frequent lubrication maintenance not only increases grease consumption and labor costs, but also reduces equipment uptime due to increased downtime for grease replenishment, affecting production continuity.

[0005] In summary, existing drum-type gear couplings have significant shortcomings in bolt loosening prevention and long-term lubrication, resulting in high operation and maintenance costs and a high risk of failure. Improvements are urgently needed to enhance their reliability and reduce the maintenance burden throughout their entire life cycle. Utility Model Content

[0006] This utility model provides a novel high-strength, high-sealing drum-shaped gear coupling to solve the technical problems existing in the prior art, which effectively enhances the load-bearing capacity and reduces tooth surface wear.

[0007] This utility model includes the following technical solution: a novel high-strength, high-sealing drum-shaped gear coupling, comprising an inner shaft sleeve at the driving end, an outer shaft sleeve at the driving end, an inner shaft sleeve at the driven end, and an outer shaft sleeve at the driven end; the outer shaft sleeve at the driving end is disposed outside the inner shaft sleeve at the driving end, and the outer shaft sleeve at the driven end is disposed outside the inner shaft sleeve at the driven end; the outer shaft sleeve at the driving end is fixed to the outer shaft sleeve at the driven end; the connecting surfaces of the outer shaft sleeve at the driving end and the outer shaft sleeve at the driven end are provided with a plurality of pairs of teeth that mesh with each other, and a first O-ring is embedded in the pairs of teeth; an oil injection port is provided on the side of the outer shaft sleeve at the driving end or the outer shaft sleeve at the driven end.

[0008] Furthermore, the active end outer bushing and the driven end outer bushing are fastened together by a number of bolts and nuts.

[0009] Furthermore, the cross-section of any single tooth in the pair of teeth is an isosceles trapezoid.

[0010] Furthermore, on the meshing surface of the teeth, a first annular groove is provided near the inner ring.

[0011] Furthermore, a first O-ring is installed in the first annular groove.

[0012] Furthermore, a drain port is provided on the side of the active end outer bushing or the driven end outer bushing, away from the oil filling port.

[0013] Furthermore, both the oil inlet and the drain outlet are equipped with sealing caps that are inserted and fixed therein.

[0014] Furthermore, the inner wall of the active end outer bushing and the outer wall of the active end inner bushing, as well as the inner wall of the driven end outer bushing and the outer wall of the driven end inner bushing, are connected by interlocking side teeth.

[0015] Furthermore, a second O-ring is fixed to the outer end face of the side tooth.

[0016] Furthermore, the second O-ring is fully or partially embedded in the driving end outer bushing and the driven end outer bushing, and seals the gap of the side teeth at the end.

[0017] The advantages and positive effects of this utility model are as follows: This invention increases torque and strengthens the connection between the two outer gear sleeves by setting teeth on the connecting surfaces of the driving and driven outer gear sleeves, thereby effectively enhancing the load-bearing capacity. Under the same dimensions, the load-bearing capacity of this invention is 90% higher than that of the original drum-shaped gear coupling, the maintenance and replacement frequency is reduced by 70%, and the failure rate is reduced by 50%. Under high torque and high speed operation, due to the heavy load on the coupling, the two outer gear sleeves of the original drum-shaped gear coupling are prone to rotating in opposite directions during operation, which can easily cause the screws in the straightening hole to be broken by lateral shear force. This solution can effectively avoid this situation by setting teeth.

[0018] The inner and outer bushings of this invention are connected by side teeth. The toothed connection reduces tooth surface friction and wear, extends service life, and also reduces noise. The first and second O-rings are used for sealing and further reduce noise.

[0019] This invention adds lubricating grease through the oil inlet. Under normal working conditions, the lubricating grease needs to be replenished every 4-5 months. Under heavy load or high-speed and high-temperature environments, the interval needs to be shortened to 2-3 months. Before each lubrication, the cap of the opposite drain port must be removed to completely remove the old grease. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the active end of this utility model; Figure 2 This is an overall schematic diagram of the present invention; In the figure, 1-Inner bushing of the driving end; 2-Outer bushing of the driving end; 3-Inner bushing of the driven end; 4-Outer bushing of the driven end; 5-Oil inlet; 6-Drain outlet; 7-Sealing cap; 8-First annular groove; 9-First O-ring; 10-Together teeth; 11-Side teeth; 12-Second O-ring; 13-Bolt; 14-Nut. Detailed Implementation

[0021] To further disclose the invention content, features, and effects of this utility model, the following examples are provided in conjunction with the accompanying drawings for detailed description. In the following description of the embodiments, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this patent and simplifying the description. They do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this patent.

[0022] In the following description of the embodiments, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0023] Example: See Appendix Figure 1-2A novel high-strength, high-sealing drum-shaped gear coupling includes an inner shaft sleeve 1, an outer shaft sleeve 2, an inner shaft sleeve 3, and an outer shaft sleeve 4. The outer shaft sleeve 2 is disposed outside the inner shaft sleeve 1, and the outer shaft sleeve 4 is disposed outside the inner shaft sleeve 3. The outer shaft sleeve 2 and the outer shaft sleeve 4 are fixed together. Several pairs of teeth 10 are provided on the connecting surfaces of the outer shaft sleeve 2 and the outer shaft sleeve 4, and a first O-ring 9 is embedded in each pair of teeth 10. An oil inlet 5 is provided on the side of the outer shaft sleeve 2 or the outer shaft sleeve 4.

[0024] like Figure 1 As shown, the driving end outer bushing 2 and the driven end outer bushing 4 are fastened together by several bolts 13 and nuts 14. During use, the connecting bolts 13 and nuts 14 are checked regularly to ensure they are tight, preventing transmission misalignment and bolt breakage due to loosening. The cross-section of any single tooth in the gear teeth 10 is an isosceles trapezoid. On the meshing surface of the gear teeth 10, a first annular groove 8 is provided near the inner ring. A first O-ring 9 is installed in the first annular groove 8.

[0025] like Figure 2 As shown, a drain port 6 is provided on the side of the active end outer bushing 2 or the driven end outer bushing 4, away from the oil inlet 5. Both the oil inlet 5 and the drain port 6 are provided with a sealing cap 7 inserted and fixed therein. Under normal operating conditions, lubricating grease should be replenished every 4-5 months. Under heavy load or high-speed, high-temperature environments, this should be shortened to 2-3 months. Before each lubrication, the sealing cap 7 of the drain port 6 must be removed to thoroughly remove the old grease. The inner wall of the active end outer bushing 2 is connected to the outer wall of the active end inner bushing 1, and the inner wall of the driven end outer bushing 4 is connected to the outer wall of the driven end inner bushing 3 by interlocking side teeth 11. A second O-ring 12 is fixedly mounted on the outer end face of the side teeth 11. The second O-ring 12 is fully or partially embedded (partially embedded in this example) into the active end outer bushing 2 and the driven end outer bushing 4, sealing the gaps at the ends of the side teeth 11.

[0026] Working principle: Under high torque and high speed operation, due to the heavy load on the coupling, the two outer gear sleeves of the original drum gear coupling are prone to rotating in opposite directions, which can easily cause the screw in the straightening hole to be broken by lateral shear force. In this example, by setting the teeth 10 on the connection surface of the driving end outer sleeve 2 and the driven end outer sleeve 4, the torque is increased and the connection strength of the two outer gear sleeves is increased, thereby effectively enhancing the load-bearing capacity. The inner and outer sleeves are connected by side teeth 11. The setting of teeth 10 reduces tooth surface friction and wear, extends service life, and also reduces noise. The first O-ring 9 and the second O-ring 12 are set for sealing and further reduce noise.

[0027] Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other modifications under the guidance of the present invention without departing from the spirit and scope of the claims. These modifications all fall within the protection scope of the present invention.

Claims

1. A novel high-strength, high-sealing drum-shaped gear coupling, comprising an inner shaft sleeve at the driving end, an outer shaft sleeve at the driving end, an inner shaft sleeve at the driven end, and an outer shaft sleeve at the driven end; the outer shaft sleeve at the driving end is disposed outside the inner shaft sleeve at the driving end, and the outer shaft sleeve at the driven end is disposed outside the inner shaft sleeve at the driven end; the outer shaft sleeve at the driving end is fixed to the outer shaft sleeve at the driven end, characterized in that: The connecting surfaces of the active end outer bushing and the driven end outer bushing are provided with several pairs of teeth that mesh with each other, and a first O-ring is embedded in the teeth; an oil filling port is provided on the side of the active end outer bushing or the driven end outer bushing.

2. The novel high-strength, high-sealing drum-shaped gear coupling according to claim 1, characterized in that: The active end outer bushing and the driven end outer bushing are fastened together by a number of bolts and nuts.

3. The novel high-strength, high-sealing drum-shaped gear coupling according to claim 1, characterized in that: The cross-section of any single tooth in the pair of teeth is an isosceles trapezoid.

4. The novel high-strength, high-sealing drum-shaped gear coupling according to claim 1, characterized in that: On the meshing surface of the teeth, a first annular groove is provided near the inner ring.

5. The novel high-strength, high-sealing drum-shaped gear coupling according to claim 4, characterized in that: The first O-ring is installed in the first annular groove.

6. The novel high-strength, high-sealing drum-shaped gear coupling according to claim 1, characterized in that: A drain port is provided on the side of the active end outer bushing or the driven end outer bushing, away from the oil filling port.

7. The novel high-strength, high-sealing drum-shaped gear coupling according to claim 6, characterized in that: Both the oil inlet and the drain outlet are equipped with sealing caps that are inserted and fixed therein.

8. The novel high-strength, high-sealing drum-shaped gear coupling according to any one of claims 1-7, characterized in that: The inner wall of the active end outer bushing and the outer wall of the active end inner bushing, as well as the inner wall of the driven end outer bushing and the outer wall of the driven end inner bushing, are connected by interlocking side teeth.

9. The novel high-strength, high-sealing drum-shaped gear coupling according to claim 8, characterized in that: The outer end face of the side tooth is fixed with a second O-ring.

10. The novel high-strength, high-sealing drum-shaped gear coupling according to claim 9, characterized in that: The second O-ring is fully or partially embedded in the driving end outer bushing and the driven end outer bushing, and seals the gap of the side teeth at the end.

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