High-strength powder metallurgy transmission gear

Abstract

The utility model discloses a high-strength powder metallurgy transmission gear which comprises a first gear, a connecting cylinder, a fixing assembly and a stabilizing assembly, the connecting cylinder is installed at the top end of the first gear, and the fixing assembly is installed in the first gear. Through the arrangement of the fixing assembly, when a first gear, a connecting cylinder, a second gear and a connecting shaft are installed, a user presses two sets of outer protection plates inwards, extrusion of the two sets of outer protection plates enables a limiting column to move inwards and a second spring to be compressed, and inward movement of the limiting column enables an inner protection plate to move inwards and a first spring to be compressed; then the first gear, the second gear and the connecting cylinder are arranged outside an outer protection plate in a sleeving mode, then the outer protection plate is loosened, under the reset acting force of a first spring and a second spring, a limiting block is clamped into a limiting groove, installation and fixation of the first gear, the second gear, the connecting cylinder and the connecting shaft are completed, and rapid installation of a user is facilitated; and meanwhile, normal and stable use of the gear is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field related to powder metallurgy transmission gears, in particular to a high-strength powder metallurgy transmission gear. Background Art

[0002] Powder metallurgy gears are a product of powder metallurgy technology applied to the field of gear manufacturing. They have the characteristics of less or no chips and are the embodiment of high-tech. Powder metallurgy gears have been widely used in many fields due to their high precision, high strength, high wear resistance and good thermal stability.

[0003] The prior art has the following deficiencies: The prior art has a publication number of CN221221338U, which discloses a high-strength powder metallurgy gear, "including a toothed disc and a replacement assembly, the replacement assembly is located above the toothed disc, the replacement assembly includes an adjustment shaft, the adjustment shaft is fixedly installed in the middle of the toothed disc, a transmission column is movably installed on the upper end of the adjustment shaft, a transmission groove is fixedly provided on the upper end of the transmission column, a notch is fixedly provided in the middle of the outer end of the adjustment shaft, and a base is fixedly installed on the lower end of the adjustment shaft";

[0004] The above-mentioned powder metallurgy gear uses a connecting rope and a limit block to complete the connection and fixation between the gear and the adjusting shaft. However, when the gear is in use, the adjusting shaft will rotate, which will cause the connecting rope to be reeled in or loosened. When it is loosened to the limit, the connecting rope will be reeled in the opposite direction, causing the limit block to detach from the limit groove, affecting the normal use of the gear. Utility Model Content

[0005] The purpose of the utility model is to provide a high-strength powder metallurgy transmission gear to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-strength powder metallurgy transmission gear, comprising a No. 1 gear, a connecting cylinder, and a fixing assembly including a stabilizing assembly, wherein the connecting cylinder is installed at the top of the No. 1 gear, the fixing assembly is installed in the No. 1 gear, and the stabilizing assembly is installed in the connecting cylinder;

[0007] The fixing assembly includes a connecting shaft, two sets of limiting columns, an outer guard plate and an inner guard plate. The connecting shaft is installed in the No. 1 gear, and the two sets of limiting columns are symmetrically installed on the side wall of the connecting shaft. The outer guard plate is installed at one end of the limiting column, and the inner guard plate is installed at the other end of the limiting column.

[0008] As a further preferred embodiment of the present technical solution, the fixing assembly also includes multiple groups of No. 1 springs, multiple groups of No. 2 springs, limit blocks and two groups of limit grooves, multiple groups of No. 1 springs are installed between the inner guard plates, multiple groups of No. 2 springs are installed between the outer guard plates and the connecting shaft, the limit blocks are welded and installed on the side walls of the outer guard plates, and the two groups of limit grooves are symmetrically opened on the inner walls of the No. 1 gear and the No. 2 gear.

[0009] As a further preferred embodiment of the present technical solution, the limit column and the connecting shaft are slidably arranged, and the cross-section of the outer guard plate is an arc-shaped structure.

[0010] As a further preferred embodiment of the present technical solution, the limit block and the limit groove are arranged correspondingly, and the No. 1 spring and the No. 2 spring are arranged correspondingly in position.

[0011] As a further preferred embodiment of the present technical solution, the stabilizing component includes a threaded hole, a through hole, a second gear, multiple groups of cavities and a threaded rod, the threaded hole is opened on the surface of the connecting tube, the through hole is opened on the inner guard plate, the outer guard plate and the surface of the connecting shaft, the second gear is installed above the connecting tube, multiple groups of cavities are opened on the surfaces of the first gear and the second gear, and the threaded rod is installed in the threaded hole and the through hole.

[0012] As a further preferred embodiment of the present technical solution, the threaded hole and the through hole are arranged correspondingly, the surface of the threaded rod is partially smoothed, and the number of teeth of the second gear is different from that of the first gear.

[0013] The utility model provides a high-strength powder metallurgy transmission gear, which has the following beneficial effects:

[0014] (1) The utility model is provided with a fixing component. When installing the No. 1 gear, the connecting tube, the No. 2 gear and the connecting shaft, the user presses the two sets of outer guard plates inward. The squeezing of the two sets of outer guard plates causes the limit column to move inward and the No. 2 spring to be compressed. The inward movement of the limit column causes the inner guard plate to move inward and the No. 1 spring to be compressed. Then, the No. 1 gear, the No. 2 gear and the connecting tube are sleeved on the outside of the outer guard plate. Then, the outer guard plate is loosened. Under the restoring force of the No. 1 spring and the No. 2 spring, the limit block is inserted into the limit groove, completing the installation and fixation of the No. 1 gear, the No. 2 gear, the connecting tube and the connecting shaft, which is convenient for the user to quickly install and ensures the normal and stable use of the gears.

[0015] (2) The utility model is provided with a stabilizing component. After the initial installation and fixation of the connecting shaft are completed, the threaded rod is screwed into the threaded hole, then passed through the through hole, and finally screwed into the threaded hole again to complete the installation and fixation between the connecting shaft and the connecting cylinder, ensuring the stable connection between the connecting cylinder and the connecting shaft. The special setting of the threaded rod facilitates the quick screwing-in by the user. With the setting of the cavity, the overall weight of the gear can be reduced, which is beneficial to the air circulation and heat dissipation. With the setting of the first gear and the second gear, it is convenient to adjust the overall transmission ratio of the gear, improving the overall practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 is a schematic diagram of the structure of the fixing component of the utility model;

[0018] Figure 3 is a sectional view of the structure of the fixing component of the utility model;

[0019] Figure 4 is a schematic diagram of the structure of the stabilizing component of the utility model.

[0020] In the figure: 1, the first gear; 2, the connecting cylinder; 3, the fixing component; 4, the stabilizing component; 5, the connecting shaft; 6, the limiting column; 7, the outer guard plate; 8, the inner guard plate; 9, the first spring; 10, the second spring; 11, the limiting block; 12, the limiting groove; 13, the threaded hole; 14, the through hole; 15, the second gear; 16, the cavity; 17, the threaded rod. SPECIFIC EMBODIMENTS

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model.

[0022] The present utility model provides the following technical solutions: As Figure 2 and Figure 3As shown in the figure, in this embodiment, a high-strength powder metallurgy transmission gear includes a first gear 1, a connecting cylinder 2, and a fixing component 3 which includes a stabilizing component 4. The connecting cylinder 2 is installed at the top of the first gear 1, the fixing component 3 is installed inside the first gear 1, and the stabilizing component 4 is installed inside the connecting cylinder 2. The fixing component 3 includes a connecting shaft 5, two groups of limiting columns 6, an outer guard plate 7, an inner guard plate 8, multiple groups of first springs 9, multiple groups of second springs 10, a limiting block 11, and two groups of limiting grooves 12. The connecting shaft 5 is installed through the first gear 1. The two groups of limiting columns 6 are symmetrically installed through the side wall of the connecting shaft 5. The outer guard plate 7 is installed at one end of the limiting column 6. The inner guard plate 8 is installed at the other end of the limiting column 6. Multiple groups of first springs 9 are installed between the inner guard plates 8. Multiple groups of second springs 10 are installed between the outer guard plate 7 and the connecting shaft 5. The limiting block 11 is welded to the side wall of the outer guard plate 7. The two groups of limiting grooves 12 are symmetrically opened on the inner walls of the first gear 1 and the second gear 15. The limiting column 6 and the connecting shaft 5 are slidably arranged. The cross-section of the outer guard plate 7 is in an arc structure. The limiting block 11 and the limiting groove 12 are correspondingly arranged. The positions of the first springs 9 and the second springs 10 are correspondingly arranged. The user presses the two outer guard plates 7 inward. The extrusion of the two outer guard plates 7 causes the limiting column 6 to move inward and the second spring 10 to be compressed. The inward movement of the limiting column 6 causes the inner guard plate 8 to move inward and the first spring 9 to be compressed. Then, the first gear 1, the second gear 15, and the connecting cylinder 2 are sleeved outside the outer guard plate 7. Then, the outer guard plate 7 is released. Under the restoring force of the first spring 9 and the second spring 10, the limiting block 11 is snapped into the limiting groove 12, completing the installation and fixation between the first gear 1, the second gear 15, the connecting cylinder 2, and the connecting shaft 5, facilitating the quick installation by the user and ensuring the normal and stable use of the gear.

[0023] As Figure 1 and Figure 4As shown in the figure, the stabilizing component 4 includes a threaded hole 13, a through hole 14, a second gear 15, multiple cavities 16, and a threaded rod 17. The threaded hole 13 is opened on the surface of the connecting cylinder 2. The through hole 14 is opened on the surfaces of the inner guard plate 8, the outer guard plate 7, and the connecting shaft 5. The second gear 15 is installed above the connecting cylinder 2. Multiple cavities 16 are opened on the surfaces of the first gear 1 and the second gear 15. The threaded rod 17 is inserted and installed in the threaded hole 13 and the through hole 14. The threaded hole 13 and the through hole 14 are correspondingly arranged. Part of the surface of the threaded rod 17 is smooth. The number of teeth of the second gear 15 is different from that of the first gear 1. After the preliminary installation and fixation of the connecting shaft 5 are completed, the threaded rod 17 is screwed into the threaded hole 13, then passed through the through hole 14, and finally screwed into the threaded hole 13 again to complete the installation and fixation between the connecting shaft 5 and the connecting cylinder 2, ensuring the stable connection between the connecting cylinder 2 and the connecting shaft 5. The special setting of the threaded rod 17 facilitates the quick screwing in by the user. With the setting of the cavities 16, the overall weight of the gear can be reduced, which is beneficial to the air circulation and heat dissipation. With the setting of the first gear 1 and the second gear 15, the overall transmission ratio of the gear can be conveniently adjusted, improving the overall practicability.

[0024] The utility model provides a high-strength powder metallurgy transmission gear, and the specific working principle is as follows:

[0025] When using this high-strength powder metallurgy transmission gear, through the provided fixing component 3, when installing between the first gear 1, the connecting cylinder 2, the second gear 15, and the connecting shaft 5, the user presses the two outer guard plates 7 inward. The extrusion of the two outer guard plates 7 causes the limit posts 6 to move inward and the second springs 10 to compress. The inward movement of the limit posts 6 causes the inner guard plate 8 to move inward and the first springs 9 to compress. Then, the first gear 1, the second gear 15, and the connecting cylinder 2 are sleeved outside the outer guard plates 7. Then, the outer guard plates 7 are released. Under the restoring force of the first springs 9 and the second springs 10, the limit blocks 11 are snapped into the limit grooves 12 to complete the installation and fixation between the first gear 1, the second gear 15, the connecting cylinder 2, and the connecting shaft 5, facilitating the quick installation by the user and ensuring the normal and stable use of the gear. Through the provided stabilizing component 4, after the preliminary installation and fixation of the connecting shaft 5 are completed, the threaded rod 17 is screwed into the threaded hole 13, then passed through the through hole 14, and finally screwed into the threaded hole 13 again to complete the installation and fixation between the connecting shaft 5 and the connecting cylinder 2, ensuring the stable connection between the connecting cylinder 2 and the connecting shaft 5. The special setting of the threaded rod 17 facilitates the quick screwing in by the user. With the setting of the cavities 16, the overall weight of the gear can be reduced, which is beneficial to the air circulation and heat dissipation. With the setting of the first gear 1 and the second gear 15, the overall transmission ratio of the gear can be conveniently adjusted, improving the overall practicability.

[0026] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A high-strength powder metallurgy transmission gear, characterized in that: It comprises a first gear (1), a connecting tube (2), a fixing assembly (3) including a stabilizing assembly (4), wherein the connecting tube (2) is mounted on the top of the first gear (1), the fixing assembly (3) is mounted in the first gear (1), and the stabilizing assembly (4) is mounted in the connecting tube (2); The fixing assembly (3) comprises a connecting shaft (5), two groups of limiting columns (6), an outer guard plate (7) and an inner guard plate (8); the connecting shaft (5) is installed in the first gear (1); the two groups of limiting columns (6) are symmetrically installed on the side wall of the connecting shaft (5); the outer guard plate (7) is installed at one end of the limiting column (6); and the inner guard plate (8) is installed at the other end of the limiting column (6).

2. The high-strength powder metallurgy transmission gear according to claim 1, characterized in that: The fixing assembly (3) further comprises a plurality of groups of No. 1 springs (9), a plurality of groups of No. 2 springs (10), a limiting block (11) and two groups of limiting grooves (12); the plurality of groups of No. 1 springs (9) are installed between the inner guard plates (8); the plurality of groups of No. 2 springs (10) are installed between the outer guard plates (7) and the connecting shaft (5); the limiting block (11) is welded and installed on the side wall of the outer guard plate (7); and the two groups of limiting grooves (12) are symmetrically arranged on the inner walls of the No. 1 gear (1) and the No. 2 gear (15).

3. The high-strength powder metallurgy transmission gear according to claim 1, characterized in that: The limiting column (6) is slidably arranged with the connecting shaft (5), and the cross section of the outer guard plate (7) is an arc-shaped structure.

4. The high-strength powder metallurgy transmission gear according to claim 2, characterized in that: The limiting block (11) and the limiting groove (12) are arranged correspondingly, and the positions of the No. 1 spring (9) and the No. 2 spring (10) are arranged correspondingly.

5. The high-strength powder metallurgy transmission gear according to claim 1, characterized in that: The stabilizing component (4) comprises a threaded hole (13), a through hole (14), a second gear (15), a plurality of cavities (16) and a threaded rod (17); the threaded hole (13) is formed on the surface of the connecting tube (2); the through hole (14) is formed on the surfaces of the inner guard plate (8), the outer guard plate (7) and the connecting shaft (5); the second gear (15) is installed above the connecting tube (2); a plurality of cavities (16) are formed on the surfaces of the first gear (1) and the second gear (15); and the threaded rod (17) is installed in the threaded hole (13) and the through hole (14).

6. The high-strength powder metallurgy transmission gear according to claim 5, characterized in that: The threaded hole (13) and the through hole (14) are arranged correspondingly, the surface of the threaded rod (17) is partially smoothed, and the number of teeth of the second gear (15) and the number of teeth of the first gear (1) are different.

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