High-stability torque increasing gearbox

Abstract

The utility model relates to the technical field of torque increasing gears, and discloses a high-stability torque increasing gearbox which comprises an outer shell, a cavity is formed in the inner surface of the outer shell, a cover plate is arranged on the outer surface of the outer shell, a positioning rod is arranged on the outer surface of the cover plate, and an output shaft and an input shaft are arranged on the inner surface of the outer shell. A dustproof cover and a first bearing are arranged on the outer surface of the output shaft, an outer cover is arranged on the inner surface of the outer shell, a planet carrier is arranged on the outer surface of a cover plate, a planet shaft is rotatably installed on the outer surface of the planet carrier, a planet gear and a second bearing are fixedly installed on the outer surface of the planet shaft, and a gear ring is fixedly installed on the inner surface of the outer cover. According to the torque increasing gearbox, through meshing transmission of the sun gear and the planetary gears, the output torque can be effectively increased, the requirements of different devices for large torque are met, loads are evenly distributed through annular distribution of the planetary gears, the bearing capacity of the gearbox is improved, and the gearbox can stably work under the heavy load condition.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of torque increasing gear, specifically to torque increasing gear box. BACKGROUND

[0002] With the rise of the industrial revolution, various mechanical equipment emerges in endlessly and develops towards large-scale and high-efficiency, many equipment such as the crusher in the mine exploitation, ball mill, crane in the construction, concrete mixer and tractor, combine harvester in the agricultural aspect need greater torque to drive working parts to complete complex tasks, the torque output by ordinary power source often cannot directly meet the needs of these equipment, and the torque increasing gear box emerges as the times require.

[0003] Meanwhile, the main function of the torque increasing gear box is to reduce the rotating speed of the input shaft through the gear transmission system, and increase the torque at the same time to meet the needs of different mechanical equipment in power transmission and working requirements, which is usually composed of multiple gears, shafts, bearings, boxes and other auxiliary components

[0004] For example, the Chinese utility model patent with the publication number CN221097395 U specifically discloses a high-torque gear box, which utilizes the mutual cooperation of the base, fixed block, mounting column, limiting column, push plate, spring, connecting block and connecting plate, the fixed block is connected with the connecting block, the limiting column limits the relative position of the fixed block and the connecting block, the push plate pushes the limiting column to connect or separate from the fixed block, thereby facilitating the installation and disassembly of the high-torque gear box body.

[0005] Based on the above-mentioned gear box scheme, although it can realize rapid installation, it is not designed for torque increasing, which is not convenient for meeting the needs of different equipment for large torque, and the carrying capacity of the gear box is poor, which is not convenient for stable work under heavy load conditions, and the practicality is poor. SUMMARY

[0006] The utility model provides a kind of high-stability torque increasing gear box, to solve the problem of the carrying capacity of gear box in prior art is poor, not convenient for stable work under heavy load conditions.

[0007] To achieve the above purpose, the technical scheme adopted by the utility model is:

[0008] The utility model provides a kind of high-stability torque-increasing gearbox, including outer shell, the inner surface of the outer shell is provided with cavity, the outer surface of the outer shell is provided with cover plate, the outer surface of the cover plate is provided with positioning rod, the inner surface of the outer shell is provided with output shaft and input shaft, the outer surface of the output shaft is provided with dust cover and first bearing, the inner surface of the outer shell is provided with outer cover, the outer surface of the cover plate is provided with planet carrier, the outer surface of the planet carrier is rotatably installed with planet shaft, the outer surface of the planet shaft is fixedly installed with planet gear and second bearing, the inner surface of the outer cover is fixedly installed with gear ring.

[0009] Preferably, the outer surface of the input shaft is provided with a clamping groove, which is located at the end of the input shaft close to the cover plate, and the cross section of the clamping groove is in the shape of a regular hexagon.

[0010] By the above technical solution, when installing the power source and the input shaft, the connecting part of the power source is designed as a regular hexagonal protrusion that matches the clamping groove, and then the protrusion is inserted into the clamping groove to realize the connection between the power source and the input shaft. The regular hexagonal clamping groove structure can effectively prevent relative rotation between the input shaft and the connecting part of the power source during power transmission, ensuring the stability and reliability of power transmission. At the same time, this connection method is easy to install and disassemble, which is convenient for equipment maintenance and repair.

[0011] Preferably, the outer surface of the input shaft is fixedly installed with a sun gear, and the sun gear is in meshing connection with the planet gear.

[0012] By the above technical solution, when power is input through the input shaft, the input shaft drives the sun gear to rotate, and the sun gear transmits power to the planet gear through meshing with the planet gear. The meshing transmission between the sun gear and the planet gear is the key part of the torque-increasing gearbox to realize the torque-increasing function. By adjusting the parameters such as the number of teeth and the module of the gears, different transmission ratios can be achieved to increase the torque and meet the demand for torque in different working scenarios.

[0013] Preferably, the planet shaft, the planet gear and the second bearing are provided with two groups, and each group is provided with four planet shafts, planet gears and second bearings. The four planet shafts, planet gears and second bearings are distributed in a ring shape around the center line of the input shaft.

[0014] By the above technical solution, the ring-shaped distribution of multiple planet gears enables the load to be evenly distributed to each planet gear, improving the carrying capacity and transmission efficiency of the gearbox. At the same time, this structure can achieve a larger transmission ratio in a smaller space, making the gearbox structure more compact and saving space.

[0015] Preferably, a connecting shaft is fixedly installed at the end of the input shaft close to the input shaft, and the connecting shaft is fixedly installed with the outer cover.

[0016] Through the above technical scheme, in the installation process, the connecting shaft is fixedly connected with the input shaft, and then the connecting shaft is fixedly installed with the outer cover, so that the relative position between the input shaft and the outer cover is fixed, the setting of the connecting shaft enhances the connection stability between the input shaft and the outer cover, the coaxiality of the input shaft in the rotating process is guaranteed, the vibration and noise are reduced, and the working stability and reliability of the gear box are improved.

[0017] Preferably, the outer surface of the output shaft is fixedly installed with third bearings and sealing rings, and the third bearings and the sealing rings are provided with two same ones, and the two third bearings and the sealing rings are located on the inner surface of the outer shell.

[0018] Through the above technical scheme, the third bearing provides good support for the output shaft, reduces the friction resistance when the output shaft rotates, and improves the transmission efficiency. The sealing ring can prevent lubricating oil from leaking, and at the same time prevent dust and impurities from the outside from entering the inside of the gear box, protect the gears and other parts from being damaged, and prolong the service life of the gear box.

[0019] Preferably, the outer surface of the outer shell is fixedly installed with an angle steel, and the other end of the outer shell away from the angle steel is fixedly installed with a supporting leg.

[0020] Through the above technical scheme, the angle steel facilitates the installation and connection of the gear box and other equipment, so that the gear box can be effectively integrated with the whole power system. The supporting leg provides stable support for the gear box, ensures the stability of the gear box in the working process, and reduces the damage to the gear box caused by vibration and shaking.

[0021] The torsion increasing gear box provided by the utility model can effectively increase the output torque through the meshing transmission of the sun gear and the plurality of planetary gears, meets the demand of different equipment for large torque, the annular distribution of the plurality of planetary gears makes the load evenly distributed, improves the load capacity of the gear box, and enables the gear box to stably work under heavy load conditions.

[0022] The torsion increasing gear box provided by the utility model prevents lubricating oil from leaking and external impurities from entering, protects the internal components of the gear box, prolongs the service life, the design of the clamping groove facilitates the connection of the power source and the input shaft, the angle steel facilitates the installation and integration of the gear box and other equipment, improves the installation and maintenance efficiency of the equipment, and the planetary gear transmission structure realizes a large transmission ratio in a small space, so that the gear box structure is more compact and the installation space is saved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a first perspective three-dimensional structure schematic view of the torsion increasing gear box in the utility model;

[0024] Figure 2This is a second-view perspective three-dimensional structural diagram of the torque-increasing gearbox in this utility model;

[0025] Figure 3 This is a cross-sectional structural diagram of the torque-increasing gearbox in this utility model;

[0026] Figure 4 This is a schematic diagram of the disassembled structure of the planetary carrier and outer cover of the torque-increasing gearbox in this utility model;

[0027] Figure 5 This is a first-view exploded structural diagram of the torque-increasing gearbox in this utility model;

[0028] Figure 6 This is a second-view exploded view of the structure of the torque-enhancing gearbox in this utility model. Figure Two .

[0029] The components are as follows: 1. Outer shell; 2. Angle steel; 3. Support foot; 4. Cavity; 5. Cover plate; 6. Positioning rod; 7. Output shaft; 8. Dust cover; 9. First bearing; 10. Input shaft; 11. Slot; 12. Outer cover; 13. Planetary carrier; 14. Planetary shaft; 15. Planetary gear; 16. Second bearing; 17. Connecting shaft; 18. Third bearing; 19. Sealing ring; 20. Sun gear; 21. Gear ring. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example 1:

[0032] like Figures 1-6 As shown, the high-stability torque-increasing gearbox provided in this example includes an outer shell 1, a cavity 4 on the inner surface of the outer shell 1, a cover plate 5 on the outer surface of the outer shell 1, a positioning rod 6 on the outer surface of the cover plate 5, an output shaft 7 and an input shaft 10 on the inner surface of the outer shell 1, a dust cover 8 and a first bearing 9 on the outer surface of the output shaft 7, an outer cover 12 on the inner surface of the outer shell 1, a planetary carrier 13 on the outer surface of the cover plate 5, a planetary shaft 14 rotatably mounted on the outer surface of the planetary carrier 13, a planetary gear 15 and a second bearing 16 fixedly mounted on the outer surface of the planetary shaft 14, and a gear ring 21 fixedly mounted on the inner surface of the outer cover 12.

[0033] On this basis, the input shaft 10 outer surface is provided with a clamping groove 11 in the present example, the clamping groove 11 is located at one end of the input shaft 10 close to the cover plate 5, the clamping groove 11 cross section is a "regular hexagon" structure.

[0034] So set up, when installing power source and input shaft 10, the connecting parts of the power source are designed to be a regular hexagonal convex that matches the clamping groove 11, then the convex is inserted into the clamping groove 11, realizing the connection of the power source and the input shaft 10, the regular hexagonal clamping groove 11 structure can effectively prevent the relative rotation between the input shaft 10 and the connecting parts of the power source during power transmission, ensuring the stability and reliability of power transmission, and this connection method is more convenient to install and disassemble, facilitating the maintenance and overhaul of the equipment.

[0035] Further, the input shaft 10 outer surface is fixedly installed with a sun gear 20 in the present example, and the sun gear 20 is meshed with the planetary gear 15.

[0036] So set up, when power is input through the input shaft 10, the input shaft 10 drives the sun gear 20 to rotate, and the sun gear 20 transmits power to the planetary gear 15 through meshing with the planetary gear 15. The meshing transmission between the sun gear 20 and the planetary gear 15 is the key part of the torque increasing gear box to realize the torque increasing function. By adjusting the parameters such as the number of teeth and the modulus of the gear, different transmission ratios can be achieved, so as to increase the torque and meet the demand of torque in different working scenes.

[0037] Further, the present example is provided with the same two groups of planetary shaft 14, planetary gear 15 and second bearing 16, each group is provided with the same four planetary shaft 14, planetary gear 15 and second bearing 16, and the four planetary shaft 14, planetary gear 15 and second bearing 16 are annularly distributed about the center line of the input shaft 10.

[0038] So set up, the annular distribution design of multiple planetary gears 15 can make the load evenly distributed to each planetary gear 15, improving the carrying capacity and transmission efficiency of the gear box. At the same time, this structure can realize a larger transmission ratio in a smaller space, making the gear box structure more compact and saving space.

[0039] Embodiment two:

[0040] Based on the scheme of embodiment one, the present example further gives an optimization scheme.

[0041] Combined Figures 3-6 As shown in the figure, the present example is fixedly installed with a connecting shaft 17 at one end of the input shaft 10 close to the input shaft 10, and the connecting shaft 17 is fixedly installed with the outer cover 12.

[0042] Thus, during the installation process, the connecting shaft 17 is fixedly connected with the input shaft 10, and then the connecting shaft 17 is fixedly installed with the outer cover 12, so as to ensure the relative position between the input shaft 10 and the outer cover 12 is fixed, the setting of the connecting shaft 17 enhances the connection stability between the input shaft 10 and the outer cover 12, ensures the coaxiality of the input shaft 10 during rotation, reduces vibration and noise, and improves the working stability and reliability of the gear box.

[0043] Further, the third bearing 18 and the sealing ring 19 are fixedly installed on the outer surface of the output shaft 7, and the third bearing 18 and the sealing ring 19 are provided with two same ones, and the two third bearings 18 and the sealing rings 19 are located on the inner surface of the outer shell 1. Thus, the third bearing 18 provides good support for the output shaft 7, reduces the friction resistance when the output shaft 7 rotates, and improves the transmission efficiency. The sealing ring 19 can prevent the lubricating oil from leaking, and at the same time prevent the dust and impurities from the outside from entering the inside of the gear box, protect the gears and other parts from being damaged, and prolong the service life of the gear box.

[0044] Further, the angle steel 2 is fixedly installed on the outer surface of the outer shell 1, and the support leg 3 is fixedly installed on the other end of the outer shell 1 away from the angle steel 2. Thus, the angle steel 2 facilitates the installation and connection of the gear box with other equipment, so that the gear box can be effectively integrated with the entire power system. The support leg 3 provides stable support for the gear box, ensures the stability of the gear box during operation, and reduces damage to the gear box caused by vibration and shaking.

[0045] For the torque increasing gear box scheme formed by the above example scheme, the following illustrates its operation process.

[0046] In combination Figures 1 to 6 As shown in the figure, in use, the power source is connected to the input shaft 10 through a specific connecting part, and when connected, the regular hexagonal protrusion on the power source connecting part that is matched with the clamping groove 11 is inserted into the clamping groove 11, so as to ensure that the power can be stably transmitted to the input shaft 10.

[0047] The power output by the power source drives the input shaft 10 to start rotating after the power source is started, and the input shaft 10, as the power input end of the entire torque increasing gear box, introduces the power into the inside of the gear box, and the interaction between the planetary gear 15 and the gear ring 21: a plurality of planetary gears 15 rotate by themselves and are in meshing engagement with the gear ring 21 fixedly installed on the inner surface of the outer cover 12, the gear ring 21 is fixed, and the planetary gear 15 rotates around the inner circumference of the gear ring 21 under the meshing engagement with the gear ring 21, and is transmitted to the planet carrier 13 through the planetary shaft 14, so that the planet carrier 13 also rotates. In the planetary gear 15 transmission system, the gear ratio of the sun gear 20, the planetary gear 15 and the gear ring 21 can be reasonably designed to increase the torque, according to the law of conservation of energy, the torque will increase when the speed decreases under the condition of constant power, and the output speed is lower than the input speed due to the planetary gear 15 transmission, so that the torque is increased, and the demand for large torque of some equipment is met.

[0048] The power increased by the planetary gear 15 transmission system is transmitted to the output shaft 7 through the planet carrier 13, and the output shaft 7 can stably rotate under the support of the third bearing 18, the third bearing 18 reduces the friction resistance when the output shaft 7 rotates, improves the transmission efficiency, at the same time, the sealing ring 19 installed on the output shaft 7 plays a sealing role, prevents the lubricating oil in the gear box from leaking, and prevents the outside dust and impurities from entering the inside of the gear box, protects the gears and other parts, finally, the output shaft 7 outputs the power increased by the torque, and drives the external equipment to work.

[0049] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A high-stability torque-increasing gearbox comprising an outer casing (1), characterized in that: The outer shell (1) is provided with a cavity (4) on the inner surface, the outer shell (1) is provided with a cover plate (5) on the outer surface, the cover plate (5) is provided with a positioning rod (6) on the outer surface, the outer shell (1) is provided with an output shaft (7) and an input shaft (10) on the inner surface, the output shaft (7) is provided with a dust cover (8) and a first bearing (9) on the outer surface, the outer shell (1) is provided with an outer cover (12) on the inner surface, the cover plate (5) is provided with a planet carrier (13) on the outer surface, the planet carrier (13) is rotatably installed with a planet shaft (14) on the outer surface, the planet shaft (14) is fixedly installed with a planet gear (15) and a second bearing (16) on the outer surface, and the outer cover (12) is fixedly installed with a gear ring (21) on the inner surface.

2. A high stability torque increasing gearbox as claimed in claim 1 characterized in that: The input shaft (10) is provided with a clamping groove (11) on the outer surface, the clamping groove (11) is located on one end of the input shaft (10) close to the cover plate (5), and the cross section of the clamping groove (11) is in a "regular hexagon" structure.

3. A high stability torque increasing gearbox as claimed in claim 1 characterized in that: The input shaft (10) is fixedly installed with a sun gear (20) on the outer surface, and the sun gear (20) is in meshing connection with the planet gear (15).

4. A high stability torque increasing gearbox as claimed in claim 1, characterized in that: The planet shaft (14), the planet gear (15) and the second bearing (16) are provided with two groups, each group is provided with four planet shafts (14), planet gears (15) and second bearings (16), and the four planet shafts (14), planet gears (15) and second bearings (16) are annularly distributed about the center line of the input shaft (10).

5. A high stability torque boosting gearbox as claimed in claim 1 characterized in that: The input shaft (10) is fixedly installed with a connecting shaft (17) on one end close to the input shaft (10), and the connecting shaft (17) is fixedly installed with the outer cover (12).

6. A high stability torque increasing gearbox as claimed in claim 1 characterized in that: The output shaft (7) is fixedly installed with a third bearing (18) and a sealing ring (19) on the outer surface, the third bearing (18) and the sealing ring (19) are provided with two, and the two third bearings (18) and the sealing rings (19) are located on the inner surface of the outer shell (1).

7. A high stability torque boosting gearbox as claimed in claim 1 characterized in that: The outer shell (1) is fixedly installed with an angle steel (2) on the outer surface, and the outer shell (1) is fixedly installed with a supporting leg (3) on the other end away from the angle steel (2).

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