Helical gear with automatic lubricating function

Abstract

The utility model relates to the technical field of helical gears, in particular to a helical gear with an automatic lubricating function, which is characterized in that a liquid storage cavity and a spiral conveying groove are formed in a circular ring, the liquid storage cavity is communicated with the spiral conveying groove, an external thread bolt is in threaded connection with the interior of the circular ring, an inner hexagonal groove is formed in the external thread bolt, and the spiral conveying groove is communicated with the liquid storage cavity. A liquid injection opening is formed in the circular ring and communicates with the liquid storage cavity, a key groove is formed in the bevel gear body, and a set of teeth are fixedly connected to the outer surface of the bevel gear body. Lubricating liquid stored in the liquid storage cavity is thrown out to the surface of the bevel gear body along the spiral track of the spiral conveying groove in the rotating process, the lubricating liquid is thrown out to the outer ring in the rotating process of the bevel gear body to conduct lubricating work, and when the bevel gear body rotates to transmit power, the lubricating liquid is automatically thrown out to conduct lubricating work. And the service life of the whole helical gear body is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of helical gear, especially a helical gear with automatic lubrication function. BACKGROUND

[0002] Helical gears are mainly used in various mechanical transmission systems, bearing the important task of transmitting power and changing speed, and are widely used in many fields such as automobiles, aerospace, industrial reducers, machine tools, etc. In the automobile transmission, the helical gear ensures the smooth and efficient transmission of power to each gear position, realizing smooth change of vehicle speed; in the aero-engine transmission mechanism, the helical gear accurately transmits high-speed and high-power power, ensuring the stability and reliability of the aircraft flight. Through the tooth surface of mutual meshing, the helical gear transmits the movement and power of the driving shaft to the driven shaft to meet the operation requirements of different mechanical equipment. The current helical gear usually needs the following technologies in practical application:

[0003] 1. Precise tooth profile design and manufacturing technology to ensure that the tooth profile of the helical gear meets the theoretical model to achieve good meshing effect and reduce transmission error;

[0004] 2. High-performance materials and heat treatment technology to make the helical gear have sufficient strength, hardness, wear resistance and fatigue resistance to adapt to different working conditions;

[0005] 3. Advanced lubrication and sealing technology to effectively reduce tooth surface friction and wear, while preventing lubricant leakage and external impurities from entering;

[0006] 4. High-precision detection and calibration technology to accurately detect the manufacturing precision and assembly quality of the helical gear in time to ensure its transmission performance.

[0007] At present, in order to realize the lubrication function of the helical gear, various design and manufacturing methods are adopted. Most helical gears rely on regular manual lubrication or simple oil bath lubrication. Some devices use oil-air lubrication technology to mix compressed air and lubricating oil, and spray fine oil droplets into the meshing area of the helical gear to achieve efficient lubrication.

[0008] However, the above-mentioned methods have a prominent problem, that is, the existing helical gears usually lack automatic lubrication function when performing transmission work. The lack of automatic lubrication function means that regular manual addition of lubricant is required, which not only consumes more manpower but also increases the downtime of the device. SUMMARY

[0009] The helical gear with the automatic lubricating function solves the technical problem that the existing helical gear lacks the automatic lubricating function when performing the transmission work, and the lack of the automatic lubricating function means that the lubricant needs to be manually added regularly, which not only consumes more manpower but also increases the downtime of the device.

[0010] To achieve the above object, the helical gear with the automatic lubricating function is implemented by the following technical scheme:

[0011] The helical gear with the automatic lubricating function comprises a circular ring, a liquid storage cavity is formed in the circular ring, a spiral conveying groove is formed in the circular ring, the liquid storage cavity and the spiral conveying groove are in communication, an external thread bolt is threadedly connected to the circular ring, and an internal hexagonal groove is formed in the external thread bolt.

[0012] Preferably, a liquid injection port is formed in the circular ring, and the liquid injection port and the liquid storage cavity are in communication.

[0013] Preferably, the external thread bolt is threadedly connected in the liquid injection port, and a helical gear body is arranged on the outer surface of the circular ring.

[0014] Preferably, an internal thread groove is formed in the circular ring, and an external ring thread is fixedly connected to the outer surface of the helical gear body.

[0015] Preferably, the internal thread groove is threadedly connected to the outer surface of the external ring thread, and an antiskid rubber pad is fixedly connected to the outer surface of the circular ring.

[0016] Preferably, a key groove is formed in the helical gear body, and a group of teeth is fixedly connected to the outer surface of the helical gear body.

[0017] Compared with the prior art, the helical gear with the automatic lubricating function has the following beneficial effects:

[0018] I. When the circular ring rotates with the helical gear body, the lubricating liquid stored in the liquid storage cavity is thrown outwards along the spiral track of the spiral conveying groove to the surface of the helical gear body in the rotating process, and the lubricating liquid is thrown outwards to the external ring for lubricating work in the rotating process of the helical gear body. When the helical gear body rotates to transmit power, the lubricating liquid is automatically thrown outwards for lubricating work, which is beneficial to improving the service life of the helical gear body as a whole.

[0019] II. The circular ring is sleeved into the helical gear body, and the circular ring is installed and fixed by rotating the internal thread groove into the outer surface of the external ring thread. When the installation operation is performed, the one part of the circular ring, in which the spiral conveying groove is formed, is attached to the outer surface of the helical gear body, and the antiskid rubber pad arranged on the outer end surface of the circular ring plays an antiskid role in the rotating installation operation, thereby improving the stability of gripping. BRIEF DESCRIPTION OF DRAWINGS

[0020] The above description is only a summary of the technical scheme of the present application. In order to make the technical means of the present application more clearly understood and implemented according to the content of the specification, the preferred embodiments of the present application are described in detail below with reference to the drawings.

[0021] Figure 1 It is a perspective view of the present application.

[0022] Figure 2 It is an exploded view of the ring connection of the present application.

[0023] Figure 3 It is an exploded view of the external thread bolt connection of the present application.

[0024] Figure 4 It is a cross-sectional view of the ring of the present application.

[0025] Figure 5 It is a perspective view of the present application. Figure 3 It is an enlarged view of A in the middle.

[0026] Legend: 11, ring; 12, liquid storage cavity; 13, spiral conveying groove; 14, external thread bolt; 15, internal hexagonal groove; 16, liquid injection port; 17, bevel gear body; 18, internal thread groove; 19, outer ring thread; 21, anti-skid rubber pad; 22, key groove; 23, tooth. DETAILED DESCRIPTION

[0027] The present application provides a bevel gear with automatic lubrication function, which effectively solves the problem that the existing bevel gear lacks automatic lubrication function during transmission work. The lack of automatic lubrication function means that lubricant needs to be added manually regularly, which not only consumes more manpower but also increases the downtime of the device. When the ring rotates with the bevel gear body, the lubricating liquid stored in the liquid storage cavity will be thrown out along the spiral track of the spiral conveying groove to the surface of the bevel gear body during rotation, and the lubricating liquid will be thrown out to the outer ring during the rotation of the bevel gear body for lubrication work. When the bevel gear body rotates to transmit power, the lubricating liquid is automatically thrown out for lubrication work, which is beneficial to improve the service life of the bevel gear body as a whole. EMBODIMENT

[0028] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the technical scheme in the embodiment of the application effectively solves the technical problem that the existing helical gear usually lacks automatic lubrication function when performing transmission work, and the lack of automatic lubrication function means that it is necessary to manually add lubricant regularly, which not only consumes more manpower but also increases the downtime of the device. The overall idea is as follows: a helical gear with automatic lubrication function, comprising a circular ring 11, a liquid storage cavity 12 is formed in the inside of the circular ring 11, a spiral conveying groove 13 is formed in the inside of the circular ring 11, the liquid storage cavity 12 and the spiral conveying groove 13 are connected in communication, an external thread plug 14 is threadedly connected in the inside of the circular ring 11, an internal hexagonal groove 15 is formed in the inside of the external thread plug 14, a liquid injection port 16 is formed in the inside of the circular ring 11, the liquid injection port 16 and the liquid storage cavity 12 are connected in communication, the lubricating oil liquid used for lubrication is injected into the liquid storage cavity 12 through the liquid injection port 16, and after the injection is completed, the liquid injection port 16 is plugged by screwing the external thread plug 14, and the external thread plug 14 can be screwed by inserting a hexagonal wrench tool into the internal hexagonal groove 15.

[0029] The external thread plug 14 is threadedly connected in the inside of the liquid injection port 16, the outer surface of the circular ring 11 is provided with a helical gear body 17, when the circular ring 11 rotates with the helical gear body 17, the lubricating liquid stored in the liquid storage cavity 12 will be thrown out along the spiral track of the spiral conveying groove 13 to the surface of the helical gear body 17 in the rotating process, and the lubricating liquid will be thrown out to the outer circle for lubrication work in the rotating process of the helical gear body 17, the lubricating liquid is automatically thrown out for lubrication work when the helical gear body 17 rotates to transmit power, which is conducive to improving the service life of the helical gear body 17 as a whole, and when the helical gear body 17 stops rotating, the lubricating liquid will be stored at the lower end position of the spiral conveying groove 13, so as to avoid the lubricating liquid from dripping out in the idle state.

[0030] An internal thread groove 18 is formed in the inside of the circular ring 11, an outer circle thread 19 is fixedly connected to the outer surface of the helical gear body 17, the internal thread groove 18 is threadedly connected to the outer surface of the outer circle thread 19, a non-slip rubber pad 21 is fixedly connected to the outer surface of the circular ring 11, a key groove 22 is formed in the inside of the helical gear body 17, a set of teeth 23 is fixedly connected to the outer surface of the helical gear body 17, the circular ring 11 is screwed at the outer circle thread 19 at the outer end of the helical gear body 17, the inner diameter size of the circular ring 11 is greater than the maximum outer diameter size of the outer circle thread 19, the circular ring 11 is sleeved into the helical gear body 17, and the circular ring 11 is installed and fixed by screwing the internal thread groove 18 into the outer surface of the outer circle thread 19, during the installation operation, the one with the spiral conveying groove 13 formed in the inside of the circular ring 11 is attached to the outer surface of the helical gear body 17, the non-slip rubber pad 21 provided on the outer end surface of the circular ring 11 plays a non-slip role during the screwing installation operation, improving the stability of holding, the helical gear body 17 is installed and connected through the key between the helical gear body 17 and the transmission component, and the helical gear body 17 performs power transmission work through the teeth 23 integrally formed on its surface.

[0031] In view of the problems in the prior art, the utility model provides a helical gear with automatic lubricating function, when the annular ring 11 rotates with the helical gear body 17, the lubricating liquid stored in the liquid storage cavity 12 will be thrown out to the surface of the helical gear body 17 along the spiral track of the spiral conveying groove 13 in the rotating process, and the lubricating liquid is thrown out to the outer ring in the rotating process of the helical gear body 17 to carry out lubricating work, when the helical gear body 17 rotates to transmit power, the lubricating liquid is automatically thrown out to carry out lubricating work, which is favorable for improving the service life of the helical gear body 17 as a whole.

[0032] Annular ring 11: as an important component of the whole automatic lubricating helical gear structure, it plays the role of bearing and conveying lubricating liquid and connecting and fixing;

[0033] Liquid storage cavity 12: located inside the annular ring 11, the main function is to store the lubricating oil for lubricating the helical gear; it provides continuous lubricating liquid supply for the automatic lubricating process, ensures that there is enough lubricating liquid to be conveyed to the surface of the helical gear body 17 through the spiral conveying groove 13 during the operation of the helical gear to maintain good lubricating condition, reduce the tooth surface wear and prolong the service life of the helical gear;

[0034] Spiral conveying groove 13: opened in the annular ring 11 and communicated with the liquid storage cavity 12, it is the key structure to realize the automatic lubricating function; when the annular ring 11 rotates with the helical gear body 17, the lubricating liquid in the liquid storage cavity 12 is thrown out to the surface of the helical gear body 17 along the spiral track of the spiral conveying groove 13 under the action of centrifugal force; this spiral design not only can guide the flow direction of the lubricating liquid, but also can make the lubricating liquid more evenly distributed on the surface of the helical gear body 17 in the throwing process, improving the lubricating effect; and when the helical gear body 17 stops rotating, the lubricating liquid will be stored at the position of the lower end of the inner cavity of the spiral conveying groove 13, avoiding the lubricating liquid from dripping out in the idle state, playing the role of storage and preventing leakage;

[0035] External thread plug 14: threaded in the liquid injection port 16 of the annular ring 11, its main role is to plug the liquid injection port 16; after the lubricating oil is injected into the liquid storage cavity 12 through the liquid injection port 16, the external thread plug 14 is screwed, which can effectively prevent the lubricating liquid in the liquid storage cavity 12 from leaking, ensure the sealing of the liquid storage cavity 12 and maintain the storage environment of the internal lubricating liquid;

[0036] Internal hexagonal groove 15: opened in the external thread plug 14, providing a tool interface for the screwing operation of the external thread plug 14; the operator inserts the internal hexagonal wrench tool into the internal hexagonal groove 15, which can conveniently screw the external thread plug 14 to realize the opening and plugging operation of the liquid injection port 16, making the injection and sealing process more convenient and accurate;

[0037] Liquid injection port 16: set in the inner ring 11 and connected with the liquid storage cavity 12, is to inject lubricating oil into the liquid storage cavity 12; through the liquid injection port 16, the operator can conveniently inject the oil for lubrication into the liquid storage cavity 12, providing the initial lubricating liquid input for the realization of automatic lubrication function;

[0038] Helical gear body 17: is the core component of power transmission, through the tooth 23 integrated on the surface of the gear body 17 and other gears are engaged with each other, power transmission;

[0039] Internal thread groove 18: set in the inner ring 11, with the outer ring thread 19 on the outer surface of the helical gear body 17, through the threaded connection, the inner ring 11 is fixed on the outer end of the helical gear body 17; this connection not only makes the inner ring 11 and the helical gear body 17 form a stable whole, common rotation to realize the function of automatic lubrication and power transmission, but also is convenient to install and disassemble, and is convenient to maintain and maintain the equipment;

[0040] Outer ring thread 19: fixedly connected on the outer surface of the helical gear body 17, threaded with the internal thread groove 18 in the inner ring 11, realizing the connection and fixation of the inner ring 11 and the helical gear body 17; it ensures that the inner ring 11 can be closely surrounded on the outer end of the helical gear body 17, rotate with the helical gear body 17, so that the two work together in the working process, and complete the task of automatic lubrication and power transmission together;

[0041] Anti-skid rubber pad 21: fixedly connected on the outer surface of the inner ring 11, plays a role in increasing friction in the operation process of installing and screwing the inner ring 11 to the outer end of the helical gear body 17; when the operator holds the inner ring 11, the anti-skid rubber pad 21 can provide better holding stability, prevent the inner ring 11 from being difficult to install or deviating in the screwing process due to hand slip, and help to improve the installation efficiency and quality;

[0042] Key groove 22: set in the inner ring 17, used for cooperating with the key on the transmission component; through the connection of the key and the key groove 22, the helical gear body 17 can be accurately connected with the transmission component, ensuring that the power can be stably and reliably transmitted to the helical gear body 17, and ensuring the positional accuracy of the helical gear body 17 in the transmission process, avoiding the relative sliding or deviation, affecting the power transmission effect;

[0043] Tooth 23: integrated on the outer surface of the helical gear body 17, is the key structure of the helical gear for power transmission; by engaging with the teeth of other gears, the helical gear body 17 can transmit the power received by itself to other components, or receive power from other components to realize the rotation of itself, complete the power transmission task in the whole mechanical transmission system.

[0044] Working principle:

[0045] First, the lubricating oil for lubrication is injected into the storage cavity 12 through the injection port 16, and after the injection is completed, the injection port 16 is sealed by screwing the outer threaded plug 14, which can be screwed by inserting the hexagonal wrench tool into the hexagonal slot 15. At this time, the annular ring 11 is screwed on the outer ring thread 19 at the outer end of the bevel gear body 17, and the inner diameter of the annular ring 11 is larger than the maximum outer diameter of the outer ring thread 19. The annular ring 11 is sleeved on the bevel gear body 17 and is installed and fixed by the inner threaded groove 18 screwed on the outer surface of the outer ring thread 19. During installation, the annular ring 11 has a spiral conveying groove 13 on the inner surface, and the anti-skid rubber pad 21 on the outer end surface of the annular ring 11 plays a role in preventing slipping during screwing and installation, improving the stability of holding. The bevel gear body 17 is installed and connected by the key between the key groove 22 and the transmission component, and the bevel gear body 17 performs power transmission work through the teeth 23 integrated on its surface.

[0046] Second, when the annular ring 11 rotates with the bevel gear body 17, the lubricating liquid stored in the storage cavity 12 will be thrown out along the spiral track of the spiral conveying groove 13 to the surface of the bevel gear body 17 during rotation, and the lubricating liquid will be thrown out to the outer ring during the rotation of the bevel gear body 17 for lubrication work. When the bevel gear body 17 rotates to transmit power, the lubricating liquid is automatically thrown out for lubrication work, which is beneficial to improve the service life of the bevel gear body 17. When the bevel gear body 17 stops rotating, the lubricating liquid will be stored at the lower end of the spiral conveying groove 13, avoiding the lubricating liquid from dripping out in the idle state.

[0047] Finally, it should be noted that: obviously, the above examples are only examples for clearly illustrating the utility model, and are not limited to the embodiments. For ordinary skilled persons in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to enumerate all the embodiments. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A helical gear with automatic lubrication function, comprising a circular ring (11), a liquid storage cavity (12) is formed inside the circular ring (11), characterized in that, The circular ring (11) is internally provided with a spiral conveying groove (13), the liquid storage cavity (12) and the spiral conveying groove (13) are communicated, and the circular ring (11) is internally threadedly connected with an external thread plug (14). The internal thread plug (14) is internally provided with an internal hexagonal groove (15).

2. The helical gear with automatic lubrication function according to claim 1, characterized in that, The circular ring (11) is internally provided with a liquid injection port (16); The liquid injection port (16) and the liquid storage cavity (12) are communicated.

3. The helical gear with automatic lubrication function according to claim 2, characterized in that, The external thread plug (14) is threadedly connected in the liquid injection port (16); The circular ring (11) is externally provided with a bevel gear body (17).

4. The helical gear with automatic lubrication function according to claim 3, characterized in that, The circular ring (11) is internally provided with an internal thread groove (18); The bevel gear body (17) is externally fixedly connected with an external thread (19).

5. The helical gear with automatic lubrication function according to claim 4, characterized in that, The internal thread groove (18) is threadedly connected to the external thread (19); The circular ring (11) is externally fixedly connected with an antiskid rubber pad (21).

6. The helical gear with automatic lubrication function as claimed in claim 5, wherein The bevel gear body (17) is internally provided with a key groove (22); The bevel gear body (17) is externally fixedly connected with a group of teeth (23).

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