Gear transmission device with high rotating speed

Abstract

The utility model relates to the technical field of transmission devices, in particular to a high-rotating-speed gear transmission device which comprises an upper cover, an inner gear cylinder, a lower cover and a transmission assembly. The lower portion of the upper cover is connected with an inner tooth cylinder through a bolt, the lower portion of the inner tooth cylinder is connected with a lower cover through a bolt, and a transmission assembly is arranged in the upper cover, the inner tooth cylinder and the lower cover. The transmission assembly comprises an upper supporting frame rotationally connected to the inner wall of the upper cover through a needle bearing, and a driving bevel gear a is rotationally arranged on the inner wall of the upper supporting frame in a penetrating mode through the needle bearing. According to the gear transmission device with the high rotating speed, teeth on the driving bevel gear a, the transmission bevel gear a, the driving bevel gear b, the transmission bevel gear b and the inner wall of the inner tooth cylinder are all helical teeth, during meshing, impact force caused by sudden contact is avoided, and transmission is more stable; according to the high-rotating-speed gear transmission device, all parts are subjected to heat treatment, meanwhile, the heat dissipation capacity is improved through the heat dissipation fins on the outer sides of the upper cover, the inner tooth cylinder and the lower cover, and the high-rotating-speed gear transmission device is higher in high-temperature resistance and wear resistance.

Description

Technical Field

[0001] This utility model relates to the field of transmission device technology, specifically a high-speed gear transmission device. Background Technology

[0002] A gear transmission is a mechanical device that transmits power and motion through the meshing of a set of gears. It is widely used in various types of machinery, such as automobiles, industrial equipment, and precision instruments. The basic principle of gear transmission is to transmit power from one shaft to another through the meshing of gears of different sizes. However, existing high-speed gear transmission devices still have certain drawbacks in use, such as…

[0003] Existing high-speed gear transmission devices typically use spur gear transmission. When spur gears mesh, the impact force is large, which will generate greater vibration and noise. At the same time, the contact surface of spur gears during meshing is small, resulting in smaller transmitted load and lower load capacity. Utility Model Content

[0004] The purpose of this invention is to provide a high-speed gear transmission device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-speed gear transmission device, comprising: an upper cover, an inner gear cylinder, a lower cover, and a transmission assembly;

[0006] An inner gear cylinder is bolted to the lower part of the upper cover, and a lower cover is bolted to the lower part of the inner gear cylinder. A transmission assembly is installed inside the upper cover, the inner gear cylinder, and the lower cover.

[0007] The transmission assembly includes an upper support frame rotatably connected to the inner wall of the upper cover via a needle roller bearing, and a driving helical gear a rotatably passes through the inner wall of the upper support frame via a needle roller bearing.

[0008] Preferably, the outer side of the driving helical gear a is meshed with a transmission helical gear a, the transmission helical gear a is rotatably connected to the inner wall of the upper support frame, and the transmission helical gear a is meshed with the inner wall of the inner gear cylinder.

[0009] Preferably, a lower support frame is rotatably connected to the lower part of the upper support frame via a needle roller bearing, and the lower support frame is rotatably connected to the inner wall of the lower cover via a needle roller bearing.

[0010] Preferably, the bottom of the upper support frame is provided with a toothed groove, and a spur gear is slidably connected in the toothed groove.

[0011] Preferably, a driving helical gear b is connected to the lower part of the spur gear by screws, and the driving helical gear b rotates on the inner wall of the lower support frame through a needle roller bearing.

[0012] Preferably, the outer side of the driving helical gear b is meshed with a transmission helical gear b, the transmission helical gear b is rotatably connected to the inner wall of the lower support frame, and the transmission helical gear b is meshed with the inner wall of the inner gear cylinder.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. In this high-speed gear transmission device, the driving helical gear a, transmission helical gear a, driving helical gear b, transmission helical gear b and the teeth on the inner wall of the internal gear cylinder are all helical teeth. During meshing, the contact point will gradually change, avoiding the impact force of sudden contact of spur gears, reducing vibration and noise, and making the transmission smoother. At the same time, the contact area of ​​helical teeth is larger, and the load is stronger.

[0015] 2. All parts of this high-speed gear transmission device are heat-treated, and the heat dissipation fins on the upper cover, inner gear cylinder and lower cover increase heat dissipation capacity, making it more resistant to high temperatures and wear. Attached Figure Description

[0016] Figure 1 This is a three-dimensional exploded view of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the three-dimensional cross-sectional structure of the internal gear cylinder of this utility model;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the upper support frame of this utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of the spur gear of this utility model;

[0021] Figure 6 This is a schematic diagram of the three-dimensional structure of the tooth groove of this utility model;

[0022] Figure 7 This is a three-dimensional structural diagram of the driving helical gear a of this utility model.

[0023] In the diagram: 1. Upper cover; 2. Internal gear cylinder; 3. Lower cover; 4. Transmission assembly; 401. Upper support frame; 402. Driving helical gear a; 403. Transmission helical gear a; 404. Lower support frame; 405. Tooth groove; 406. Spur gear; 407. Driving helical gear b; 408. Transmission helical gear b. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-3 The present invention provides a technical solution: a high-speed gear transmission device, comprising: an upper cover 1, an inner gear cylinder 2, a lower cover 3 and a transmission component 4; the lower part of the upper cover 1 is connected to the inner gear cylinder 2 by bolts, the lower part of the inner gear cylinder 2 is connected to the lower cover 3 by bolts, and the transmission component 4 is provided inside the upper cover 1, the inner gear cylinder 2 and the lower cover 3.

[0026] This high-speed gear transmission device has an upper cover 1, an inner gear cylinder 2, and a lower cover 3 that can be separated after the screws are removed to install or maintain internal components and add cooling oil. The outer sides of the upper cover 1, the inner gear cylinder 2, and the lower cover 3 are all equipped with heat dissipation fins. Multiple sets of heat dissipation fins can increase the contact area between the upper cover 1, the inner gear cylinder 2, and the lower cover 3 and the air, allowing heat to be better dissipated into the air, thereby improving the heat dissipation capacity of the high-speed gear transmission device. At the same time, all parts of this solution are heat-treated, making the whole device more resistant to high temperatures and more wear-resistant.

[0027] exist Figure 3 and Figure 7 In the transmission assembly 4, there is an upper support frame 401 rotatably connected to the inner wall of the upper cover 1 via a needle roller bearing, and a driving helical gear a402 rotatably passes through the inner wall of the upper support frame 401 via a needle roller bearing.

[0028] This high-speed gear transmission device uses a sealed series of needle roller bearings, which reduces friction, strengthens pressure resistance, and makes it more wear-resistant and durable. After adding cooling oil to the cavity surrounded by the upper cover 1, inner gear cylinder 2 and lower cover 3, it can prevent the internal cooling oil from flowing out of the cavity surrounded by the upper cover 1, inner gear cylinder 2 and lower cover 3, thus better heat dissipation. It can also prevent external dust and other impurities from entering the cavity and affecting the operation of internal components, thereby improving the stability of the high-speed gear transmission device.

[0029] The drive helical gear a402 is bolted to the output shaft of the drive device such as the motor and hydraulic motor. The drive device drives the drive helical gear a402 to rotate on the inner wall of the upper support frame 401, providing a power source for the high-speed gear transmission device.

[0030] exist Figure 1 and Figures 3-6In the middle, the outer side of the driving helical gear a402 is meshed with the transmission helical gear a403, the transmission helical gear a403 is rotatably connected to the inner wall of the upper support frame 401, and the transmission helical gear a403 is meshed with the inner wall of the internal gear cylinder 2.

[0031] This high-speed gear transmission device drives the helical gear a402 to rotate, which in turn drives the transmission helical gear a403 to rotate on the inner wall of the upper support frame 401. At the same time, the transmission helical gear a403 moves along the teeth on the inner wall of the inner gear cylinder 2, thereby driving the upper support frame 401 to rotate inside the inner gear cylinder 2. Since the teeth on the inner wall of the inner gear cylinder 2 are more than the teeth on the driving helical gear a402, when the rotating driving helical gear a402 drives the upper support frame 401 to rotate inside the inner gear cylinder 2, the speed will be reduced and the torque will be increased.

[0032] exist Figure 1 and Figure 3 In the middle, the lower support frame 404 is rotatably connected to the lower support frame 401 via a needle roller bearing, and the lower support frame 404 is rotatably connected to the inner wall of the lower cover 3 via a needle roller bearing.

[0033] In this high-speed gear transmission device, the lower support frame 404 is located below the upper support frame 401, and the output shaft below the upper support frame 401 is inserted into the lower support frame 404. The resistance of the upper support frame 401 rotating within the lower support frame 404 is reduced by relying on needle roller bearings.

[0034] exist Figures 4-6 In the middle, the bottom of the upper support frame 401 is provided with a toothed groove 405, and a spur gear 406 is slidably connected in the toothed groove 405.

[0035] When the upper support frame 401 and the lower support frame 404 are assembled together, the spur gear 406 is inserted into the tooth groove 405 to prevent slippage, and at the same time the upper support frame 401 drives the spur gear 406 to rotate.

[0036] exist Figure 1 In the middle, a drive helical gear b407 is connected to the lower part of the spur gear 406 by screws. The drive helical gear b407 rotates on the inner wall of the lower support frame 404 through a needle roller bearing.

[0037] In this high-speed gear transmission device, when the upper support frame 401 rotates on the inner wall of the inner gear cylinder 2, the tooth groove 405 drives the spur gear 406 to rotate, and the spur gear 406 drives the helical gear b407 to rotate.

[0038] exist Figure 1 and Figures 3-6In the middle, the outer side of the driving helical gear b407 is meshed with the transmission helical gear b408, the transmission helical gear b408 is rotatably connected to the inner wall of the lower support frame 404, and the transmission helical gear b408 is meshed with the inner wall of the internal gear cylinder 2.

[0039] This high-speed gear transmission device drives the helical gear b407 to rotate, which in turn drives the transmission helical gear b408 to rotate on the inner wall of the lower support frame 404. At the same time, the transmission helical gear b408 moves along the teeth on the inner wall of the inner gear cylinder 2, thereby driving the lower support frame 404 to rotate on the inner wall of the lower cover 3. Since the teeth on the inner wall of the inner gear cylinder 2 are more than the teeth on the driving helical gear b407, when the driving helical gear b407 rotates and drives the lower support frame 404 to rotate inside the inner gear cylinder 2, the speed will be reduced and the torque will be increased. The lower part of the lower support frame 404 is connected to the input shaft of the device to be driven, thus driving the device to operate.

[0040] In summary: When using this high-speed gear transmission device, firstly, the high-speed gear transmission device is bolted to the equipment that needs to be driven. The output shaft of the drive device such as the motor and hydraulic motor is installed with the drive helical gear a402. The input shaft of the equipment to be driven is installed with the lower support frame 404. The drive device is started to drive the internal components to rotate. After the internal helical gear reduces speed twice and increases torque, it drives the equipment to be driven to operate. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high speed gear transmission comprising: The upper cover (1), the inner gear cylinder (2), the lower cover (3), and the transmission assembly (4) Its characteristics are: The upper cover (1) is connected to the lower part of the inner toothed cylinder (2) by bolts, and the lower cover (3) is connected to the lower part of the inner toothed cylinder (2) by bolts. The upper cover (1), the inner toothed cylinder (2) and the lower cover (3) are provided with a transmission assembly (4). The transmission assembly (4) includes an upper support frame (401) rotatably connected to the inner wall of the upper cover (1) via a needle roller bearing, and a driving helical gear a (402) rotatably passes through the inner wall of the upper support frame (401) via a needle roller bearing.

2. A high speed gear drive as claimed in claim 1, characterised in that: The outer side of the driving helical gear a (402) is meshed with a transmission helical gear a (403), which is rotatably connected to the inner wall of the upper support frame (401) and meshed with the inner wall of the inner gear cylinder (2).

3. A high speed gear drive as claimed in claim 1, characterised in that: The lower support frame (404) is rotatably connected to the lower support frame (401) via a needle roller bearing. The lower support frame (404) is rotatably connected to the inner wall of the lower cover (3) via a needle roller bearing.

4. A high speed gear drive as claimed in claim 3, characterised in that: The bottom of the upper support frame (401) is provided with a toothed groove (405), and a spur gear (406) is slidably connected in the toothed groove (405).

5. A high speed gear drive as claimed in claim 4, characterised in that: Below the spur gear (406), a driving helical gear b (407) is connected by screws. The driving helical gear b (407) rotates on the inner wall of the lower support frame (404) through a needle roller bearing.

6. A high speed gear drive as claimed in claim 5, characterised in that: The outer side of the driving helical gear b (407) is meshed with a transmission helical gear b (408), which is rotatably connected to the inner wall of the lower support frame (404) and meshed with the inner wall of the internal gear cylinder (2).

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