Bevel gear for electric forklift

By designing an oil reservoir and oil outlet structure in the bevel gear of the electric forklift, the automatic throwing of lubricating oil is achieved, solving the problem of insufficient lubrication, improving transmission efficiency and service life, and ensuring the stability and lubrication effect of the equipment.

CN223782029UActive Publication Date: 2026-01-09金华新天齿轮有限公司
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Patent Information

Application Number
CN202520710782.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-15
Publication Date
2026-01-09
Estimated Expiration
2035-04-15

AI Technical Summary

Technical Problem

The existing electric forklift bevel gears are prone to insufficient lubrication when operating at high speeds, leading to tooth surface wear and burning, reducing transmission efficiency and service life.

Method used

A bevel gear for electric forklifts was designed, comprising an oil reservoir, an oil trough, and an oil outlet. The rotational force throws lubricating oil into the tooth surface, ensuring that the lubricant fully covers the tooth surface. A cover plate and a locking block structure are provided for easy cleaning and sealing to prevent lubricating oil leakage.

Benefits of technology

It effectively avoids insufficient lubrication, prevents tooth surface wear and burning, improves transmission efficiency and gear service life, and ensures equipment stability and lubrication effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The bevel gear for the electric forklift comprises a main body, a connecting cylinder is arranged at the tail of the main body, a plurality of bevel teeth are arranged on the main body, a cover plate is arranged on one side of the main body, a plurality of first oil grooves are formed in one side of the main body, and the first oil grooves are distributed at equal intervals in an array mode. A plurality of second oil grooves are formed in one side of the cover plate, the second oil grooves are aligned with the first oil grooves, and oil outlets are formed in the conical teeth and are in butt joint with the first oil grooves and the second oil grooves; an oil storage cavity is formed in the connecting cylinder, and an oil outlet groove is formed in one side of the oil storage cavity. According to the bevel gear for the electric forklift, it is guaranteed that a lubricant can enter the tooth surface, abrasion caused by overheating is avoided, and therefore the transmission efficiency is guaranteed, and the service life of the gear is prolonged; the condition of insufficient lubrication is avoided, and ablation or abrasion is prevented.
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Description

Technical Field

[0001] This utility model relates to the field of forklift transmission components, and in particular to a bevel gear for electric forklifts. Background Technology

[0002] Gears are the main components of the mechanical transmission of forklifts, and they need to be used in conjunction with drive shafts. In the process of drive shafts driving gears to rotate, bevel gears can achieve efficient power transmission in this situation and have good adaptability.

[0003] The bevel gears used in existing electric forklifts generate high-intensity contact and friction between their tooth surfaces during operation. Lubricant is needed to prevent tooth surface wear and overheating, thereby ensuring transmission efficiency and extending gear life. Although lubricant provides some lubrication, the small contact area can lead to insufficient lubrication at high speeds, causing gasket burning or severe wear, ultimately reducing gear transmission efficiency. Utility Model Content

[0004] The main objective of this invention is to provide a bevel gear for electric forklifts, which can effectively solve the technical problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A bevel gear for an electric forklift includes a main body, a connecting cylinder at the rear of the main body, a plurality of bevel teeth on the main body, a cover plate on one side of the main body, a plurality of first oil grooves on one side of the main body, the plurality of first oil grooves being evenly spaced in an array, a plurality of second oil grooves on one side of the cover plate, the plurality of second oil grooves being aligned with the first oil grooves, an oil outlet on one side of the plurality of bevel teeth, the oil outlets being connected to the first oil grooves and the second oil grooves; an oil storage cavity is provided at the connecting cylinder, an oil outlet groove is provided on one side of the oil storage cavity, the oil outlet groove is annular, and the oil outlet groove is connected to one side of the plurality of first oil grooves.

[0007] As a further embodiment of this utility model, an oil inlet is provided on one side of the oil storage cavity, an oil inlet pipe is welded to the oil inlet, and a sealing cap is movably connected to the inlet of the oil inlet pipe.

[0008] As a further embodiment of this utility model, a number of card blocks are welded to one side of the main body, and the number of card blocks are distributed in an array at equal intervals. A number of card slots are opened on one side of the cover plate, and the number of card slots are respectively adapted to the number of card blocks.

[0009] As a further embodiment of this utility model, a groove is provided at several of the card slots, and a gasket is provided at the groove.

[0010] As a further embodiment of this utility model, a circular through hole is provided in the groove, and a bolt is provided in the circular through hole.

[0011] As a further embodiment of this utility model, one end of the bolt passes through the washer, and a threaded groove is provided at the locking block, with one end of the bolt threadedly connected to the threaded groove.

[0012] As a further embodiment of this utility model, the cover plate is annular, and a sealing ring is snapped onto the outer wall of the cover plate, with one side of the sealing ring tightly fitted to the inner wall of the main body.

[0013] The beneficial effects of this utility model are as follows:

[0014] The oil reservoir, formed by the connecting cylinder, is filled with lubricating oil. When the forklift starts and the main body rotates, the lubricating oil inside the reservoir enters the oil passage formed by the first and second oil grooves through the oil outlet. Under the action of rotational force, the lubricating oil enters the oil outlet of the bevel gear through the oil passage, and then is thrown between the two sets of bevel gears through the oil outlet, thus completing the lubrication of the gears. This ensures that the lubricant can enter the tooth surface, avoids overheating and wear, thereby ensuring transmission efficiency and improving the service life of the gears. It also avoids insufficient lubrication and prevents burning or wear.

[0015] The cover plate is designed to be detachable from the main body, which facilitates the cleaning of the first and second oil tanks by the staff and avoids blockage. The set block and the opened slot make it easy to quickly connect the cover plate to the main body, and at the same time facilitate the subsequent bolts to be turned into the threaded groove. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a bevel gear for an electric forklift according to the present invention;

[0017] Figure 2 This is a bottom schematic diagram of a bevel gear for an electric forklift according to the present invention;

[0018] Figure 3 This utility model relates to a bevel gear for electric forklifts. Figure 1 Side view sectional view;

[0019] Figure 4 This utility model relates to a bevel gear for electric forklifts. Figure 2 Side view sectional view;

[0020] Figure 5 This is a cross-sectional view of a bevel gear for an electric forklift according to the present invention;

[0021] Figure 6 This utility model relates to a bevel gear for electric forklifts. Figure 3 Enlarged view of point A in the middle;

[0022] Figure 7 This utility model relates to a bevel gear for electric forklifts. Figure 4 Enlarged view at point B in the middle;

[0023] Figure 8 This utility model relates to a bevel gear for electric forklifts. Figure 5 Enlarged view of point C in the middle.

[0024] In the diagram: 1. Main body; 2. Cover plate; 3. Oil storage chamber; 4. Oil outlet; 5. First oil tank; 6. Second oil tank; 7. Oil outlet tank; 8. Conical teeth; 9. Oil inlet; 10. Oil inlet pipe; 11. Sealing cover; 12. Connecting cylinder; 13. Sealing ring; 14. Slot; 15. Block; 16. Groove; 17. Gasket; 18. Bolt. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] like Figures 1-8 As shown, a bevel gear for an electric forklift includes a main body 1, a connecting cylinder 12 at the tail of the main body 1, a plurality of bevel teeth 8 on the main body 1, a cover plate 2 on one side of the main body 1, a plurality of first oil grooves 5 on one side of the main body 1, the plurality of first oil grooves 5 being evenly spaced in an array, a plurality of second oil grooves 6 on one side of the cover plate 2, the plurality of second oil grooves 6 being aligned with the first oil grooves 5, and an oil outlet 4 on the plurality of bevel teeth 8, the oil outlet 4 being connected to the first oil grooves 5 and the second oil grooves 6.

[0027] In this embodiment, an oil storage cavity 3 is provided at the connecting cylinder 12, and an oil outlet groove 7 is provided on one side of the oil storage cavity 3. The oil outlet groove 7 is annular and is connected to one side of several first oil grooves 5.

[0028] Before the forklift is operated, the oil reservoir 3 in the connecting cylinder 12 is filled with lubricating oil. When the forklift is started, the main body 1 rotates, and the lubricating oil in the oil reservoir 3 enters the oil passage formed by the first oil groove 5 and the second oil groove 6 through the oil outlet groove 7. Under the action of rotational force, the lubricating oil enters the oil outlet 4 in the bevel gear 8 through the oil passage, and then the lubricating oil is thrown into the space between the two sets of bevel gears 8 through the oil outlet 4, thereby completing the lubrication of the gears. This ensures that the lubricant can enter the tooth surface, avoids overheating and wear, thereby ensuring transmission efficiency and improving the service life of the gears. It also avoids insufficient lubrication and prevents burning or wear.

[0029] In this embodiment, an oil inlet 9 is provided on one side of the oil storage chamber 3, and an oil inlet pipe 10 is welded to the oil inlet 9. A sealing cap 11 is movably connected to the opening of the oil inlet pipe 10.

[0030] Workers can easily add lubricating oil by sending it into the oil storage chamber 3 through the oil inlet 9 via the oil inlet pipe 10. The oil inlet pipe 10 is sealed with a sealing cap 11 to prevent lubricating oil from splashing out.

[0031] In this embodiment, a number of card blocks 15 are welded to one side of the main body 1. The card blocks 15 are distributed in an array at equal intervals. A number of card slots 14 are opened on one side of the cover plate 2. The card slots 14 are respectively adapted to the card blocks 15.

[0032] By setting the cover plate 2 to be separable from the main body 1, it is convenient for staff to clean the first oil tank 5 and the second oil tank 6 to avoid blockage. The set block 15 and the opened slot 14 make it easy to quickly connect the cover plate 2 with the main body 1, and at the same time, it is convenient for the subsequent bolts 18 to be turned into the threaded groove.

[0033] The cover plate 2 is annular, and a sealing ring 13 is snapped onto the outer wall of the cover plate 2. One side of the sealing ring 13 is tightly fitted to the inner wall of the main body 1. By setting the sealing ring 13, the gap at the connection between the cover plate 2 and the main body 1 is sealed, thereby preventing the leakage of lubricating oil.

[0034] In this embodiment, a groove 16 is provided at several slots 14, a gasket 17 is provided at the groove 16, a circular through hole is provided at the groove 16, a bolt 18 is provided at the circular through hole, one end of the bolt 18 passes through the gasket 17, a threaded groove is provided at the block 15, and one end of the bolt 18 is threadedly connected to the threaded groove.

[0035] By threading the bolt 18 through the washer 17 and connecting it to the threaded groove through the groove 16, the cover plate 2 and the main body 1 are securely connected together after the bolt 18 is threaded to the threaded groove, thereby increasing the stability of the equipment. At the same time, the friction force is increased by setting the washer 17 to help the bolt 18 connection to be more secure.

[0036] It should be noted that this utility model is a bevel gear for an electric forklift. Before the forklift is operated, the operator first sends lubricating oil into the oil storage chamber 3 through the oil inlet 9 via the oil inlet pipe 10, and then seals the opening of the oil inlet pipe 10 with the sealing cap 11 to prevent the lubricating oil from being thrown out. When the forklift is started, the main body 1 rotates, and the lubricating oil in the oil storage chamber 3 enters the oil passage formed by the first oil groove 5 and the second oil groove 6 through the oil outlet groove 7. Under the action of rotational force, the lubricating oil enters the oil outlet 4 in the bevel gear 8 through the oil passage, and then throws the lubricating oil between the two sets of bevel gears 8 through the oil outlet 4, thereby completing the lubrication of the gear.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A bevel gear for an electric forklift, comprising a main body (1), wherein a connecting cylinder (12) is provided at the tail of the main body (1), and a plurality of bevel teeth (8) are provided on the main body (1), characterized in that: A cover plate (2) is provided on one side of the main body (1), and a plurality of first oil grooves (5) are provided on one side of the main body (1). The plurality of first oil grooves (5) are arranged in an array at equal intervals. A plurality of second oil grooves (6) are provided on one side of the cover plate (2). The plurality of second oil grooves (6) are aligned with the first oil grooves (5). An oil outlet (4) is provided on a plurality of conical teeth (8). The oil outlet (4) is connected to the first oil grooves (5) and the second oil grooves (6). An oil storage cavity (3) is provided at the connecting cylinder (12), and an oil outlet groove (7) is provided on one side of the oil storage cavity (3). The oil outlet groove (7) is annular and is connected to one side of several first oil grooves (5).

2. The bevel gear for an electric forklift according to claim 1, characterized in that: An oil inlet (9) is provided on one side of the oil storage chamber (3), and an oil inlet pipe (10) is welded to the oil inlet (9). A sealing cap (11) is movably connected to the opening of the oil inlet pipe (10).

3. A bevel gear for an electric forklift according to claim 1, characterized in that: The main body (1) has several card blocks (15) welded on one side, and the several card blocks (15) are distributed in an array at equal intervals. The cover plate (2) has several card slots (14) on one side, and the several card slots (14) are respectively adapted to the several card slots (14).

4. A bevel gear for an electric forklift according to claim 3, characterized in that: A groove (16) is provided at several of the slots (14), and a gasket (17) is provided at the groove (16).

5. A bevel gear for an electric forklift according to claim 4, characterized in that: A circular through hole is provided at the groove (16), and a bolt (18) is provided at the circular through hole.

6. A bevel gear for an electric forklift according to claim 5, characterized in that: One end of the bolt (18) passes through the washer (17), and a threaded groove is provided at the locking block (15). One end of the bolt (18) is threadedly connected to the threaded groove.

7. A bevel gear for an electric forklift according to claim 1, characterized in that: The cover plate (2) is annular, and a sealing ring (13) is snapped onto the outer wall of the cover plate (2). One side of the sealing ring (13) is tightly fitted to the inner wall of the main body (1).