Gear with wear-resistant structure

Abstract

The utility model provides a gear with a wear-resistant structure, which belongs to the technical field of gears and comprises a gear body, a mounting shaft and a lubricating component. A shaft hole is formed in the middle of the gear body, and multiple gear teeth are arranged on the surface of the gear body. An annular cavity is formed in a mounting shaft, a plurality of oil dispersing holes are formed in the surface of the annular cavity in a surrounding mode, the oil dispersing holes penetrate through the mounting shaft, an oil outlet hole is formed in the middle of a gear groove in a penetrating mode, and the oil outlet hole corresponds to the oil dispersing holes. Lubricating oil flows into the annular cavity through the oil injection cavity and is injected into the oil outlets through the multiple oil dispersing holes in the surface of the annular cavity, so that the lubricating oil enters the middle of the gear groove, abrasion between the gear bodies can be reduced, and the abrasion resistance of the gear bodies is improved.

Description

Technical Field

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

[0002] At present, there are mainly two types of gears used in gear reducers: one is a gear made of steel material. Gears of this material have the advantage of high strength, but gears of this material generate relatively large noise when working; the other is a gear made of nylon material. Gears of this material have low noise when working, but their strength is poor and they are very easy to be damaged. Therefore, there is an urgent need to solve this problem. Among them, a gear with application number "CN201521088981.6" has the beneficial effect that the gear described above reduces the noise of the gear when working while ensuring the strength of the gear by casting a gear body made of nylon material outside the steel matrix. The structure is simple and easy to implement, but the gear still has certain shortcomings during use: the gear will generate heat due to friction when running at high speed. The generation of heat usually affects the hardness of the gear itself and increases the wear between the gears, seriously affecting the service life of the gear. Utility Model Content

[0003] The purpose of the utility model is to provide a gear with a wear-resistant structure to solve the problem proposed in the above background technology that the gear will generate heat due to friction when running at high speed. The generation of such heat usually affects the hardness of the gear itself and thus increases the wear between the gears, seriously affecting the service life of the gear.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gear with a wear-resistant structure, comprising a gear body, a mounting shaft and a lubrication assembly;

[0005] Wherein: an axial hole is opened in the middle of the gear body, a plurality of gear teeth are arranged on the surface of the gear body, and a gear groove is formed between adjacent gear teeth;

[0006] A mounting hole is provided in the middle of the mounting shaft, the mounting hole is concentric with the shaft hole, the mounting shaft is inserted into the shaft hole, and one end of the mounting shaft is connected to a limiting ring;

[0007] The lubrication assembly includes an annular cavity opened inside the mounting shaft, a plurality of dispersed oil holes are opened around the surface of the annular cavity, the dispersed oil holes penetrate the surface of the mounting shaft, an oil outlet hole is opened through the middle of the gear groove, and the oil outlet hole and the dispersed oil hole form a channel correspondingly.

[0008] As a preferred solution of the utility model: the oil filling cavity inside the mounting shaft, the surface of the mounting shaft is provided with an oil filling hole, and the oil filling hole is communicated with the oil filling cavity.

[0009] As a preferred solution of the utility model: a transverse groove is provided on the surface of the gear groove, and the transverse groove is communicated with the oil outlet hole.

[0010] As a preferred solution of the utility model: a mounting rail is fixedly mounted on the surface of the mounting shaft, a mounting groove is formed on the inner wall of the shaft hole, and the mounting rail is inserted into the mounting groove.

[0011] As a preferred solution of the utility model: a fixing groove is provided at the other end of the installation shaft, and a retaining spring is installed inside the fixing groove.

[0012] As a preferred solution of the utility model: the gear body is made of chromium-nickel-molybdenum material.

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

[0014] (1) An annular cavity is provided inside the mounting shaft, and a plurality of dispersed oil holes are provided around the surface of the annular cavity. The dispersed oil holes penetrate the mounting shaft, and an oil outlet hole is provided in the middle of the gear groove. The oil outlet hole corresponds to the dispersed oil hole. When lubricating oil is added to the oil filling hole provided on the surface of the mounting shaft, the lubricating oil flows into the annular cavity through the oil filling cavity, and is injected into the oil outlet hole through the plurality of dispersed oil holes on the surface of the annular cavity, so that the lubricating oil enters the middle of the gear groove, thereby reducing the wear between the gear bodies and improving the wear resistance of the gear bodies.

[0015] (2) The surface of the mounting shaft is provided with a mounting rail, and the inner wall of the shaft hole is provided with a mounting groove. When the gear body is installed on the mounting shaft, the mounting groove is aligned with the mounting rail, and the gear body is pushed to slide along the rear surface of the mounting rail box to ensure that the oil outlet hole corresponds to the oil dispersion hole. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 This is a schematic diagram of the split structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the installation shaft structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the annular cavity of the utility model.

[0020] In the figure: 1. Gear body;

[0021] 2. Axis hole;

[0022] 3. Gear teeth;

[0023] 4. Gear slot;

[0024] 5. Mounting shaft; 51. Mounting hole; 52. Limiting ring;

[0025] 6. Lubrication assembly; 61. Annular cavity; 62. Dispersed oil hole; 63. Oil outlet hole; 64. Oil injection cavity; 65. Oil injection hole;

[0026] 7. Transverse groove;

[0027] 8. Install the slide rails;

[0028] 9. Mounting slot;

[0029] 10. Fixed slot;

[0030] 11. Circlip. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] See also Figure 1 - Figure 4 , a gear with a wear-resistant structure, comprising: a gear body 1, a mounting shaft 5 and a lubrication assembly 6; an axial hole 2 is opened in the middle of the gear body 1, a plurality of gear teeth 3 are arranged on the surface of the gear body 1, and a gear groove 4 is formed between adjacent gear teeth 3;

[0033] See also Figure 2 , Figure 3 A mounting hole 51 is opened in the middle of the mounting shaft 5, and the mounting hole 51 is concentric with the shaft hole 2. The mounting shaft 5 is inserted into the shaft hole 2, and one end of the mounting shaft 5 is connected to a limiting ring 52.

[0034] During specific use: a mounting hole 51 is opened in the middle of the mounting shaft 5, the mounting hole 51 is concentric with the shaft hole 2, the mounting shaft 5 is inserted into the shaft hole 2, so that the mounting shaft 5 and the gear body 1 are fixedly installed together, and the limiting ring 52 connected to one end of the mounting shaft 5 plays an installation limiting role to prevent the gear body 1 from slipping off the surface of the mounting shaft 5.

[0035] See also Figure 3 , Figure 4The lubrication assembly 6 includes an annular cavity 61 opened inside the mounting shaft 5, a plurality of dispersed oil holes 62 are opened around the surface of the annular cavity 61, the dispersed oil holes 62 penetrate the surface of the mounting shaft 5, an oil outlet hole 63 is opened through the middle of the gear groove 4, the oil outlet hole 63 and the dispersed oil hole 62 form a channel corresponding to the oil filling cavity 64 inside the mounting shaft 5, and an oil filling hole 65 is opened on the surface of the mounting shaft 5, and the oil filling hole 65 is connected with the oil filling cavity 64.

[0036] During specific use: an annular cavity 61 is opened inside the mounting shaft 5, and a plurality of dispersed oil holes 62 are opened around the surface of the annular cavity 61. The dispersed oil hole 62 penetrates the mounting shaft 5, and an oil outlet hole 63 is opened in the middle of the gear groove 4. The oil outlet hole 63 corresponds to the dispersed oil hole 62. When lubricating oil is added to the oil filling hole 65 opened on the surface of the mounting shaft 5, the lubricating oil flows into the annular cavity 61 through the oil filling cavity 64, and the lubricating oil is injected into the oil outlet hole 63 through the plurality of dispersed oil holes 62 on the surface of the annular cavity 61, so that the lubricating oil enters the middle of the gear groove 4, which can reduce the wear between the gear bodies 1 and improve the wear resistance of the gear bodies 1.

[0037] Please refer to FIG. 4 . A transverse groove 7 is formed on the surface of the gear groove 4 . The transverse groove 7 is connected to the oil outlet hole 63 .

[0038] During specific use: a transverse groove 7 is provided on the surface of the gear groove 4, and the transverse groove 7 is connected to the oil outlet hole 63, so that the lubricating oil is evenly distributed inside the gear groove 4, effectively reducing the wear of the contact parts between the gears.

[0039] See also Figure 2 , Figure 3 A mounting rail 8 is fixedly mounted on the surface of the mounting shaft 5 , a mounting groove 9 is opened on the inner wall of the shaft hole 2 , and the mounting rail 8 is inserted into the mounting groove 9 .

[0040] During specific use: a mounting rail 8 is provided on the surface of the mounting shaft 5, and a mounting groove 9 is provided on the inner wall of the shaft hole 2. When the gear body 1 is installed on the mounting shaft 5, the mounting groove 9 is aligned with the mounting rail 8, and the gear body 1 is pushed so that it slides along the mounting rail 8 toward the surface of the mounting shaft 5 to ensure that the oil outlet hole 63 corresponds to the oil dispersion hole 62.

[0041] See also Figure 3 The other end of the mounting shaft 5 is provided with a fixing groove 10 , and a retaining spring 11 is installed inside the fixing groove 10 .

[0042] During specific use: a fixing groove 10 is provided at the other end of the mounting shaft 5 . After the gear body 1 is mounted on the surface of the mounting shaft 5 , the retaining spring 11 is embedded in the fixing groove 10 to prevent the gear body 1 from loosening.

[0043] See also Figure 1 The gear body 1 is made of 40 chromium-nickel-molybdenum material.

[0044] When used specifically: the gear body 1 is made of 40 chromium-nickel-molybdenum material, with nickel and molybdenum elements added to 40 chromium. Nickel can improve the strength and impact toughness of the steel, and molybdenum can improve the thermal stability, heat resistance and wear resistance of the steel, thereby further enhancing the wear resistance of the gear body 1.

[0045] An annular cavity 61 is provided inside the mounting shaft 5, and a plurality of dispersed oil holes 62 are provided around the surface of the annular cavity 61. The dispersed oil hole 62 penetrates the mounting shaft 5, and an oil outlet hole 63 is provided in the middle of the gear groove 4. The oil outlet hole 63 corresponds to the dispersed oil hole 62. When lubricating oil is added to the oil filling hole 65 provided on the surface of the mounting shaft 5, the lubricating oil flows into the annular cavity 61 through the oil filling cavity 64, and is injected into the oil outlet hole 63 through the plurality of dispersed oil holes 62 on the surface of the annular cavity 61, so that the lubricating oil enters the middle of the gear groove 4, which can reduce the wear between the gear bodies 1 and improve the wear resistance of the gear bodies 1.

[0046] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A gear with a wear-resistant structure, characterized in that: include: A gear body (1), wherein a shaft hole (2) is provided in the middle of the gear body (1), a plurality of gear teeth (3) are provided on the surface of the gear body (1), and gear grooves (4) are formed between adjacent gear teeth (3); A mounting shaft (5), wherein a mounting hole (51) is provided in the middle of the mounting shaft (5), the mounting hole (51) is concentric with the shaft hole (2), the mounting shaft (5) is inserted into the shaft hole (2), and one end of the mounting shaft (5) is connected to a limiting ring (52); A lubrication assembly (6), the lubrication assembly (6) comprising an annular cavity (61) formed inside the mounting shaft (5), a plurality of dispersed oil holes (62) formed around the surface of the annular cavity (61), the dispersed oil holes (62) penetrating the surface of the mounting shaft (5), an oil outlet hole (63) penetrating the middle of the gear groove (4), the oil outlet hole (63) and the dispersed oil hole (62) forming a channel corresponding to each other.

2. The gear with a wear-resistant structure according to claim 1, characterized in that: An oil injection cavity (64) is installed inside the mounting shaft (5), and an oil injection hole (65) is opened on the surface of the mounting shaft (5), and the oil injection hole (65) is communicated with the oil injection cavity (64).

3. The gear with a wear-resistant structure according to claim 1, characterized in that: A transverse groove (7) is provided on the surface of the gear groove (4), and the transverse groove (7) is connected to the oil outlet hole (63).

4. The gear with a wear-resistant structure according to claim 1, characterized in that: A mounting slide rail (8) is fixedly mounted on the surface of the mounting shaft (5), a mounting groove (9) is formed on the inner wall of the shaft hole (2), and the mounting slide rail (8) is inserted into the mounting groove (9).

5. The gear with a wear-resistant structure according to claim 1, characterized in that: The other end of the installation shaft (5) is provided with a fixing groove (10), and a retaining spring (11) is installed inside the fixing groove (10).

6. The gear with a wear-resistant structure according to claim 1, characterized in that: The gear body (1) is made of 40 chromium-nickel-molybdenum material.

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