Driven gear

Abstract

The utility model belongs to the technical field of gears, and particularly relates to a driven gear which comprises a base body, outer teeth distributed around the axis of the base body at equal intervals are fixedly connected to the outer wall of the base body, a through hole is formed in the middle of the base body, and inner teeth distributed around the axis of the base body at equal intervals are arranged at one end of the side wall of the through hole. An oil storage groove is correspondingly formed between every two adjacent outer teeth, the oil storage grooves are formed in the outer wall of the base body, and an oil guide structure is arranged in the base body. According to the utility model, lubricating oil enters between the teeth and between the outer teeth can partially flow into the oil storage tank, and because the two ends of the oil storage tank are closed, part of the lubricating oil in the oil storage tank flows into the through hole through the oil guide structure, and part of the lubricating oil is left in the oil storage tank; and redundant lubricating oil in the oil storage tank flows outwards and infiltrates the side walls of the outer teeth, so that the lubricating and heat dissipation effects are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to gear technical field, concretely relates to a passive gear. BACKGROUND

[0002] Gear is the wheel rim has the tooth, can continuously mesh transmission motion and power mechanical element, the application of gear in transmission has appeared very early, the principle of generating cutting gear and the special machine tool and cutter using this principle cutting gear appear successively, with the development of production, the stability of gear operation is valued, gear is divided into driving gear and driven gear, driving gear is connected with power shaft directly, and driven gear is driven by driving gear, since the friction between driving gear and driven gear occurs when transmission, therefore, the gear needs to be lubricated when using.

[0003] The gear teeth between the commonly used driven gear are open at both ends of the gear slot, the lubricating oil flows out from both ends of the gear slot, thereby reducing the amount of lubricating oil inside the gear slot, with the continuous operation of the gear, the lubrication and heat dissipation effect of the gear are affected. UTILITY MODEL CONTENTS

[0004] The utility model discloses a passive gear, it can improve lubrication and heat dissipation effect, to solve the problem in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a passive gear, including the base body, the outer wall of the base body is fixedly connected with the outer tooth that around base body axle center equidistance distribution, the middle part of the base body is provided with the through -hole, one end of the through -hole side wall is provided with the inner tooth that around base body axle center equidistance distribution, corresponding storage oil tank is set up between the adjacent two outer tooth, the storage oil tank is set up in the outer wall of base body, the inside of the base body is provided with the oil guide structure, and the storage oil tank is communicated with the through -hole through the oil guide structure.

[0006] Further, one end of the outer wall of the base body is integrally connected with the diameter cylinder.

[0007] Further, the outer tooth has thirty-three.

[0008] Further, the through -hole includes the round hole that is set up in the middle part of the base body one end, one end of the round hole is provided with the first diameter hole, one end of the first diameter hole is provided with the second diameter hole, and one end of the second diameter hole is provided with the third diameter hole.

[0009] Further, the inner tooth is arranged on the inner wall of the third diameter hole.

[0010] Further, the oil guide structure includes the annular groove that is set up in the inside of the base body, the side wall of the annular groove is provided with the equidistance distribution communication cavity, and one end of the communication cavity is communicated with the corresponding storage oil tank.

[0011] Furthermore, one end of the annular groove is provided with equidistantly distributed oil guide cavities, and one end of the oil guide cavity is connected to the third diaphragm hole.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: when lubricating oil enters between the teeth, some of the lubricating oil entering between the external teeth will flow into the inside of the oil reservoir. Since the two ends of the oil reservoir are closed, part of the lubricating oil inside the oil reservoir flows into the inside of the through hole through the oil guide structure, and part remains inside the oil reservoir. When the oil reservoir rotates to face downward, the excess lubricating oil inside the oil reservoir will flow outward and wet the side wall of the external teeth, thereby improving the lubrication and heat dissipation effect. The lubricating oil entering the annular groove flows into the inside of the third aperture hole through the oil guide cavity, and then flows between the adjacent internal teeth. After rotation, the lubrication effect on the internal teeth can be improved, thereby improving the service life of the gear. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a front view of the present invention;

[0015] Figure 3 This is a cross-sectional view of the present invention.

[0016] The attached diagram lists the components represented by each number as follows:

[0017] 1. Matrix; 11. Aperture cylinder; 2. External teeth; 3. Through hole; 31. Circular hole; 32. First aperture hole; 33. Second aperture hole; 34. Third aperture hole; 4. Internal teeth; 5. Oil reservoir; 6. Oil guiding structure; 61. Annular groove; 62. Oil guiding cavity; 63. Connecting cavity. Detailed Implementation

[0018] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0019] like Figure 1 As shown, a passive gear includes a base 1. The outer wall of the base 1 is fixedly connected with external teeth 2 that are equidistantly distributed around the axis of the base 1. There are thirty-three external teeth 2. A through hole 3 is provided in the middle of the base 1. One end of the side wall of the through hole 3 is provided with internal teeth 4 that are equidistantly distributed around the axis of the base 1. An oil storage groove 5 is provided between each two adjacent external teeth 2. The oil storage groove 5 is located on the outer wall of the base 1. An oil guiding structure 6 is provided inside the base 1. The oil storage groove 5 is connected to the through hole 3 through the oil guiding structure 6.

[0020] According to the above structure, by the tooth connection of the external tooth 2 and the driving gear, in use, the lubricating oil enters between the teeth, and the lubricating oil between the external tooth 2 flows into the inside of the oil storage groove 5. Since the two ends of the oil storage groove 5 are closed, the lubricating oil in the inside of the oil storage groove 5 flows into the inside of the through hole 3 through the oil guide structure 6, and part of the lubricating oil remains in the inside of the oil storage groove 5. When the oil storage groove 5 rotates to the downward direction, the excess lubricating oil in the inside of the oil storage groove 5 flows outward, and is immersed in the side wall of the external tooth 2, thereby improving the lubricating effect.

[0021] As shown in Figure 2 and 3 , one end of the outer wall of the base body 1 is integrally connected with a diameter-limiting cylinder 11. The through hole 3 includes a circular hole 31 arranged in the middle of one end of the base body 1. One end of the circular hole 31 is provided with a first diameter-limiting hole 32. One end of the first diameter-limiting hole 32 is provided with a second diameter-limiting hole 33. One end of the second diameter-limiting hole 33 is provided with a third diameter-limiting hole 34. The inner tooth 4 is arranged on the inner wall of the third diameter-limiting hole 34.

[0022] According to the above structure, in use, the base body 1 is connected with the driving gear through the external tooth 2. The inner tooth 4 in the inside of the third diameter-limiting hole 34 is connected with the subsequent gear through the meshing connection.

[0023] As shown in Figure 3 , the oil guide structure 6 includes an annular groove 61 arranged in the inside of the base body 1. The side wall of the annular groove 61 is provided with a plurality of communication cavities 63 arranged at equal intervals. One end of the communication cavity 63 is in communication with the corresponding oil storage groove 5. One end of the annular groove 61 is provided with a plurality of oil guide cavities 62 arranged at equal intervals. One end of the oil guide cavity 62 is in communication with the third diameter-limiting hole 34.

[0024] According to the above structure, in use, the lubricating oil in the inside of the oil storage groove 5 flows into the inside of the annular groove 61 through the communication cavity 63. The lubricating oil in the inside of the annular groove 61 flows into the inside of the third diameter-limiting hole 34 through the oil guide cavity 62, and then flows between the adjacent inner teeth 4. After rotation, the lubricating effect on the inner tooth 4 can be improved, thereby improving the service life of the gear.

[0025] The working principle of this utility model is as follows: the external gear 2 meshes with the driving gear. During use, lubricating oil enters between the teeth. Some of the lubricating oil entering between the external teeth 2 flows into the oil reservoir 5. Since the oil reservoir 5 is closed at both ends, some of the lubricating oil inside the oil reservoir 5 flows into the through hole 3 through the oil guide structure 6, while some remains inside the oil reservoir 5. When the oil reservoir 5 rotates to face downwards, the excess lubricating oil inside the oil reservoir 5 flows outwards and wets the side wall of the external gear 2, thereby improving the lubrication effect. During use, some of the lubricating oil inside the oil reservoir 5 flows into the annular groove 61 through the connecting cavity 63. The lubricating oil entering the annular groove 61 flows into the third aperture hole 34 through the oil guide cavity 62, and then flows between the adjacent internal teeth 4. After rotation, the lubrication effect on the internal teeth 4 can be improved, thereby improving the service life of this gear.

[0026] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A passive gear, comprising a base (1), characterized in that: The outer wall of the base (1) is fixedly connected with external teeth (2) that are equidistantly distributed around the axis of the base (1). A through hole (3) is provided in the middle of the base (1). One end of the side wall of the through hole (3) is provided with internal teeth (4) that are equidistantly distributed around the axis of the base (1). An oil storage tank (5) is provided between each two adjacent external teeth (2). The oil storage tank (5) is provided on the outer wall of the base (1). An oil guiding structure (6) is provided inside the base (1). The oil storage tank (5) is connected to the through hole (3) through the oil guiding structure (6).

2. A driven gear according to claim 1, characterized in that: One end of the outer wall of the substrate (1) is integrally connected to a diaphragm cylinder (11).

3. A driven gear according to claim 1, characterized in that: The external teeth (2) are thirty-three in number.

4. A driven gear according to claim 1, characterized in that: The through hole (3) includes a circular hole (31) disposed in the middle of one end of the substrate (1), a first diaphragm hole (32) is provided at one end of the circular hole (31), a second diaphragm hole (33) is provided at one end of the first diaphragm hole (32), and a third diaphragm hole (34) is provided at one end of the second diaphragm hole (33).

5. A driven gear according to claim 1, characterized in that: The internal teeth (4) are disposed on the inner wall of the third diaphragm hole (34).

6. A driven gear according to claim 1, characterized in that: The oil guiding structure (6) includes an annular groove (61) disposed inside the substrate (1). The sidewall of the annular groove (61) is provided with equidistantly distributed connecting cavities (63). One end of the connecting cavity (63) is connected to the corresponding oil storage tank (5).

7. A driven gear according to claim 6, characterized in that: One end of the annular groove (61) is provided with an oil guide cavity (62) distributed at equal intervals, and one end of the oil guide cavity (62) is connected to the third bracket hole (34).

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