Wear-resistant bevel gear

Abstract

The utility model discloses a wear-resistant bevel gear which comprises a bevel gear body, the bevel gear body comprises an outer gear ring and an inner gear seat, the inner gear seat comprises a frustum body and a base plate, the frustum body is arranged on the base plate, the outer gear ring is provided with a middle hole corresponding to the frustum body, and the bottom of the outer gear ring is in threaded connection with a positioning screw pin. A positioning through hole corresponding to the positioning screw pin is formed in the base plate, and the positioning screw pin penetrates through the positioning through hole and is connected with a nut, so that the inner tooth holder is detachably connected with the outer tooth ring. The split type gear ring is novel in structure, adopts a split type design, can be manufactured separately compared with an integrally formed structure, is low in manufacturing requirement, facilitates replacement of a damaged outer gear ring, enables an intact part to be continuously used, and improves the resource utilization rate.

Description

Technical Field

[0001] The utility model belongs to the technical field of bevel gears, in particular to a wear-resistant bevel gear. Background Art

[0002] Bevel gears are conical gears used for motion and power transmission between two intersecting shafts and are also commonly used in gearboxes for electric forklifts.

[0003] Existing bevel gears have the following defects: they are one-piece structures, and local bevel tooth wear or keyway cracking during use will affect normal transmission and require entire replacement, while intact parts cannot be used, resulting in a waste of resources.

[0004] The existing patent document (publication number: CN220828497U) discloses "a wear-resistant bevel gear", which also has the above-mentioned technical problems. Summary of the invention

[0005] The utility model aims to solve the above-mentioned technical problems existing in the prior art and provide a wear-resistant bevel gear with a novel structure and a split design. Compared with the one-piece molding structure, it can be manufactured separately with low manufacturing requirements, and it is easy to replace the damaged outer gear ring. The intact part can continue to be used, thereby improving resource utilization.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] The wear-resistant bevel gear comprises: a bevel gear body, characterized in that: the bevel gear body comprises an outer gear ring and an inner gear seat, the inner gear seat comprises a frustum body and a chassis, the frustum body is arranged on the chassis, the outer gear ring is provided with a middle hole corresponding to the frustum body, the bottom of the outer gear ring is screwed with a positioning screw pin, the chassis is provided with a positioning through hole corresponding to the positioning screw pin, the positioning screw pin passes through the positioning through hole and is connected with a nut, so that the inner gear seat can be disassembled and connected to the outer gear ring. The bevel gear has a novel structure and adopts a split design. Compared with the one-piece molding structure, it can be manufactured separately, has low manufacturing requirements, is easy to replace the damaged outer gear ring, and the intact part can continue to be used, which improves resource utilization.

[0008] Furthermore, a magnet ring is provided on the chassis, and a fixed ring groove corresponding to the magnet ring is provided at the bottom of the outer gear ring, an iron ring is provided in the fixed ring groove, and the magnet ring is embedded in the fixed ring groove and is magnetically attracted to the iron ring, so that the outer gear ring and the inner gear seat are accurately connected, the difficulty of assembly is reduced, the magnetic attraction is reliable, and the connection strength between the outer gear ring and the inner gear seat is improved, so that the outer gear ring and the inner gear seat are not easily separated freely, and the outer gear ring and the inner gear seat are prevented from separating after the nut is loosened to affect normal use.

[0009] Furthermore, a protrusion is provided at the bottom of the magnet ring, and a concave hole corresponding to the protrusion is provided on the chassis. The protrusion is aligned with the concave hole and embedded, so that the magnet ring can be quickly positioned on the chassis, with low installation difficulty and convenient operation.

[0010] Furthermore, the magnet ring is fixed on the chassis by bonding. The use of glue to fix it replaces the fixing method of punching and nailing, which is easy to operate, not easy to fall off freely, and has high reliability.

[0011] Furthermore, the iron ring is fixed in the fixed ring groove by bonding. The use of glue to fix it replaces the fixing method of punching and nailing, which is easy to operate, not easy to fall off freely, and has high reliability.

[0012] Furthermore, the surface of the bevel gear body is coated with a galvanized layer, which improves the wear resistance of the bevel gear body, slows down the wear rate of the bevel teeth, and prolongs the service life.

[0013] Furthermore, a keyway is provided at the center of the inner gear seat to facilitate the connection with the transmission shaft.

[0014] The utility model has the following beneficial effects due to the adoption of the above technical solution:

[0015] 1. The bevel gear body adopts a split design. Compared with the one-piece molding structure, it can be manufactured separately, with low manufacturing requirements, and it is easy to replace the damaged outer gear ring. The intact part can continue to be used, which improves resource utilization. During assembly, the cone body is sleeved through the middle hole of the outer gear ring, and the positioning screw pin passes through the positioning through hole on the chassis to achieve accurate docking of the outer gear ring and the inner gear seat, and then the nut is installed on the positioning screw pin. The nut limits the positioning screw pin from freely escaping from the positioning through hole, so that the outer gear ring and the inner gear seat cannot be separated freely, fixed into a body, and the structural stability is high.

[0016] 2. During the assembly process, the magnet ring is embedded in the fixed ring groove and magnetically attracted to the iron ring to achieve accurate docking between the outer gear ring and the inner gear seat, which reduces the difficulty of assembly, ensures reliable magnetic attraction, and improves the connection strength between the outer gear ring and the inner gear seat, making it difficult for the outer gear ring and the inner gear seat to separate freely, preventing the outer gear ring and the inner gear seat from separating after the nut is loosened, thereby affecting normal use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the structure of the wear-resistant bevel gear of the utility model;

[0019] Figure 2 This is a schematic diagram of the bottom structure of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the internal gear seat in the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the joint between the outer gear ring and the iron ring in the utility model;

[0022] Figure 5 It is a structural schematic diagram of the magnet ring in the utility model.

[0023] In the figure: 1-bevel gear body; 2-external gear ring; 3-inner gear seat; 4-cone body; 5-chassis; 6-conical teeth; 7-keyway; 8-center hole; 9-screw hole; 10-positioning screw pin; 11-positioning through hole; 12-nut; 13-magnet ring; 14-protrusion; 16-fixing ring groove; 17-iron ring. DETAILED DESCRIPTION

[0024] like Figures 1 to 5 As shown, the wear-resistant bevel gear of the utility model comprises: a bevel gear body 1, the surface of the bevel gear body 1 is coated with a galvanized layer, which improves the wear resistance of the bevel gear body 1, slows down the wear speed of the bevel teeth, and prolongs the service life.

[0025] The bevel gear body 1 includes an outer gear ring 2 and an inner gear seat 3. The inner gear seat 3 includes a frustum body 4 and a chassis 5. The frustum body 4 is arranged on the chassis 5. The frustum body 4 and the chassis 5 are an integrally formed structure with a stable structure and can be mass-produced. Bevel teeth 6 are distributed circumferentially on the inner gear seat 3. A keyway 7 is provided in the center of the inner gear seat 3 for easy connection with the transmission shaft.

[0026] The outer gear ring 2 is provided with a middle hole 8 corresponding to the frustum body 4. The cross-sectional diameter of the chassis 5 is larger than the cross-sectional diameter of the largest part of the middle hole 8. A screw hole 9 is provided at the bottom of the outer gear ring 2. A positioning screw pin 10 is screwed on the screw hole 9. The positioning screw pin 10 can be installed and used at any time, which is flexible and convenient. A positioning through hole 11 corresponding to the positioning screw pin 10 is provided on the chassis 5. The positioning screw pin 10 passes through the positioning through hole 11 and is connected with a nut 12.

[0027] The bevel gear body 1 adopts a split design. Compared with the one-piece molding structure, it can be manufactured separately, with low manufacturing requirements, and it is easy to replace the damaged outer gear ring 2. The intact part can continue to be used, which improves resource utilization. During assembly, the frustum body 4 is sleeved through the middle hole 8 of the outer gear ring 2, so that the positioning screw pin 10 passes through the positioning through hole 11 on the chassis 5, so that the outer gear ring 2 and the inner gear seat 3 are accurately connected, and then the nut 12 is installed on the positioning screw pin 10. The nut 12 limits the positioning screw pin 10 from freely escaping from the positioning through hole 11, so that the outer gear ring 2 and the inner gear seat 3 cannot be separated freely, and are fixed into a body with high structural stability.

[0028] The chassis 5 is bonded and fixed with a magnet ring 13, a protrusion 14 is provided at the bottom of the magnet ring 13, and a concave hole corresponding to the protrusion 14 is provided on the chassis 5. During installation, glue is first applied to the bottom surface of the magnet ring 13, and then the protrusion 14 is aligned with the concave hole on the chassis 5 and embedded, so that the magnet ring 13 can be quickly positioned on the chassis 5, with low installation difficulty and convenient operation. After the glue is cured, the magnet ring 13 is fixed on the chassis 5. The use of glue to fix it replaces the fixing method of punching and nailing, which has low operation difficulty, is not easy to fall off freely, and has high reliability.

[0029] The bottom of the outer gear ring 2 is provided with a fixed ring groove 16 corresponding to the magnet ring 13, and an iron ring 17 is bonded and fixed in the fixed ring groove 16, and the thickness of the iron ring 17 is less than the depth of the fixed ring groove 16. During installation, glue is applied to the inner wall of the fixed ring groove 16, and then the iron ring 17 is embedded in the fixed ring groove 16 so that the iron ring 17 is fully in contact with the glue. After the glue is cured, the iron ring 17 is fixed in the fixed ring groove 16. The use of glue fixation replaces the fixing method of punching and nailing, which is easy to operate, not easy to fall off freely, and has high reliability.

[0030] During the assembly process, the magnet ring 13 is embedded in the fixed ring groove 16 and magnetically attracted to the iron ring 17, so that the outer gear ring 2 and the inner gear seat 3 are accurately connected, which reduces the difficulty of assembly, ensures reliable magnetic attraction, and improves the connection strength between the outer gear ring 2 and the inner gear seat 3, making it difficult for the outer gear ring 2 and the inner gear seat 3 to separate freely, preventing the outer gear ring 2 and the inner gear seat 3 from separating after the nut 12 is loosened, thereby affecting normal use.

[0031] The glue used in the utility model can be epoxy resin AB glue.

[0032] The above are only specific embodiments of the utility model, but the technical features of the utility model are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the utility model to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the utility model.

Claims

1. Wear-resistant bevel gear, including: Bevel gear body, Features: The bevel gear body includes an outer gear ring and an inner gear seat, the inner gear seat includes a frustum body and a chassis, the frustum body is arranged on the chassis, the outer gear ring is provided with a center hole corresponding to the frustum body, the bottom of the outer gear ring is screwed with a positioning screw pin, the chassis is provided with a positioning through hole corresponding to the positioning screw pin, the positioning screw pin passes through the positioning through hole and is connected with a nut, so that the inner gear seat can be detachably connected to the outer gear ring.

2. The wear-resistant bevel gear according to claim 1, characterized in that: A magnet ring is arranged on the chassis, a fixed ring groove corresponding to the magnet ring is arranged at the bottom of the outer gear ring, an iron ring is arranged in the fixed ring groove, the magnet ring is embedded in the fixed ring groove and is magnetically attracted to the iron ring.

3. The wear-resistant bevel gear according to claim 2, characterized in that: The bottom of the magnet ring is provided with a protrusion, and the chassis is provided with a concave hole corresponding to the protrusion.

4. The wear-resistant bevel gear according to claim 2, characterized in that: The magnet ring is bonded and fixed on the chassis.

5. The wear-resistant bevel gear according to claim 2, characterized in that: The iron ring is bonded and fixed in the fixing ring groove.

6. The wear-resistant bevel gear according to claim 1, characterized in that: The surface of the bevel gear body is coated with a zinc plating layer.

7. The wear-resistant bevel gear according to claim 1, characterized in that: A keyway is arranged at the center of the inner gear seat.

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