Combined modified face gear

Abstract

The utility model discloses a combined type modified face gear. Comprising a face gear body and a cylindrical helical gear, the face gear body is divided into an outer tooth body and a shaft hole body, the middle of the outer tooth body is hollowed out, an outer tooth ring plate is inwards arranged on the tooth face of the outer tooth body, a plurality of outer tooth protruding blocks are arranged on the inner side face of the outer tooth ring plate, and the outer tooth protruding blocks are circumferentially distributed at equal intervals with the middle of the outer tooth body as the circle center; a shaft hole annular plate is arranged on the periphery of the shaft hole body, shaft hole protruding blocks corresponding to the outer tooth protruding blocks in number are arranged on the outer side face of the shaft hole annular plate, the shaft hole protruding blocks are circumferentially distributed at equal intervals with the center of the shaft hole body as the circle center, and the shaft hole protruding blocks and the outer tooth protruding blocks are attached in a staggered mode. The outer tooth protruding blocks are provided with outer tooth bolt holes corresponding to the shaft hole bolt holes, and a plurality of bolts are arranged to be connected with the shaft hole bolt holes and the outer tooth bolt holes. The face gear body is separated, the outer tooth body with the tooth face is convenient to replace, and material loss is reduced.

Description

Technical Field

[0001] This utility model relates to the field of gear technology, specifically to a combined modified surface gear. Background Technology

[0002] Modified gears are gears that have undergone specific modification treatments to optimize their performance, such as reducing vibration, lowering noise, and increasing lifespan. Modified gears typically involve two aspects: tooth profile modification and tooth direction modification.

[0003] The problem is that even after modification, low-noise face gears will gradually wear down over time, leading to changes in tooth profile, poor meshing, and thus noise. Wear also reduces the surface finish of the gears, increasing friction and vibration, further exacerbating the noise. In actual production and use, worn face gears need to be constantly repaired and replaced. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a modular modified surface gear that is easy to replace and repair.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a combined modified face gear, comprising a face gear body and a cylindrical helical gear. The face gear body is divided into an outer tooth body and a shaft hole body. The outer tooth body is hollowed out in the middle. An outer tooth ring plate is provided inward on the tooth surface of the outer tooth body. A number of outer tooth protrusions are provided on the inner side of the outer tooth ring plate. The outer tooth protrusions are distributed at equal intervals around the center of the outer tooth body. A shaft hole is provided in the middle of the shaft hole body. A shaft hole ring plate is provided on the outer periphery of the shaft hole body. A number of shaft hole protrusions corresponding to the number of outer tooth protrusions are provided on the outer side of the shaft hole ring plate. The shaft hole protrusions are distributed at equal intervals around the center of the shaft hole body. The positions of the shaft hole protrusions and the outer tooth protrusions are staggered and fitted together. A number of shaft hole bolt holes are provided on the shaft hole ring plate. The outer tooth protrusions are provided with corresponding outer tooth bolt holes. A number of bolts are provided to connect the shaft hole bolt holes and the outer tooth bolt holes.

[0006] Preferably, both the external gear body and the shaft hole body are integrally formed by powder metallurgy.

[0007] Compared with the prior art, this utility model has the following advantages: by separating the face gear into an external tooth body and a shaft hole body, and by setting external tooth protrusions and shaft hole protrusions and using bolts to achieve a detachable connection between the two, the replacement of the face gear only requires replacing the external tooth body with toothed surfaces. Furthermore, the annular fit between the external tooth protrusions and the internal tooth protrusions ensures the stress transmission between the external tooth body and the shaft hole body after the connection. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0009] Figure 2 This is a schematic diagram of the structure of the external tooth body in this utility model.

[0010] Figure 3 This is a schematic diagram of the structure of the central shaft hole of this utility model.

[0011] Among them, 10-face gear body, 11-cylindrical helical gear, 12-external tooth body, 13-shaft hole body, 14-external tooth protrusion, 15-external tooth bolt hole, 16-external tooth ring plate, 17-shaft hole protrusion, 18-shaft hole bolt hole, 19-shaft hole, 20-shaft hole ring plate. Detailed Implementation

[0012] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.

[0013] like Figures 1 to 3 The combined modified face gear shown includes a face gear body 10 and a cylindrical helical gear 11. The face gear body 10 is divided into an external tooth body 12 and a shaft hole body 13. Both the external tooth body 12 and the shaft hole body 13 are integrally formed by powder metallurgy. The center of the external tooth body 12 is hollowed out. An external tooth ring plate 16 is provided inward on the tooth surface of the external tooth body 12. Four external tooth protrusions 14 are provided on the inner side of the external tooth ring plate 16. The external tooth protrusions 14 are distributed at equal intervals around the center of the external tooth body 12. A shaft hole 19 is provided in the center of the shaft hole body 13. A shaft hole ring plate 20 is provided on the outer periphery of the shaft hole body 13. The outer side of the shaft hole ring plate 20 is provided with shaft hole protrusions 17 corresponding to the number of external tooth protrusions 14. The shaft hole protrusions 17 are distributed at equal intervals around the center of the shaft hole body 13. The positions of the shaft hole protrusions 17 and the external tooth protrusions 14 are staggered and fitted together. The shaft hole ring plate 20 is provided with four shaft hole bolt holes 18. The external tooth protrusions 14 are provided with external tooth bolt holes 15 corresponding to the shaft hole bolt holes 18. Four bolts are provided to connect the shaft hole bolt holes 18 and the external tooth bolt holes 15.

[0014] The working process and principle of this utility model are as follows: The external gear body 12 and the shaft hole body 13 are installed as follows: the external gear protrusion 14 and the shaft hole protrusion 17 are aligned laterally by staggered fit. After the lateral alignment, the shaft hole bolt hole 18 corresponds to the external gear bolt hole 15. The shaft hole bolt hole 18 and the external gear bolt hole 15 are connected by bolts, so that the two fit tightly in the vertical direction. In order to reduce the stress damage of the gear, the external gear protrusion 14 and the shaft hole protrusion 17 are made into a fan shape. The disassembly and assembly of the external gear body 12 and the shaft hole body 13 only requires unscrewing each bolt and taking out the external gear body 12 laterally. This makes it convenient to replace the easily worn external gear body 12 with toothed surfaces, reducing the material loss caused by directly replacing the entire gear.

[0015] It should be readily understood that the terms “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0016] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0017] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0018] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A combined profiled gear, comprising a gear body and a cylindrical helical gear, characterized in that: The face gear body is divided into an external tooth body and a shaft hole body. The middle of the external tooth body is hollowed out, and an external tooth ring plate is provided on the tooth surface of the external tooth body. Several external tooth protrusions are provided on the inner side of the external tooth ring plate. The external tooth protrusions are distributed at equal intervals around the center of the external tooth body. The shaft hole body has a shaft hole in the middle. A shaft hole ring plate is provided on the outer circumference of the shaft hole body. The outer side of the shaft hole ring plate has shaft hole protrusions corresponding to the number of external tooth protrusions. The shaft hole protrusions are distributed at equal intervals around the center of the shaft hole body. The positions of the shaft hole protrusions and the external tooth protrusions are staggered and fitted. Several shaft hole bolt holes are provided on the shaft hole ring plate. External tooth protrusions are provided with corresponding external tooth bolt holes. Several bolts are provided to connect the shaft hole bolt holes and the external tooth bolt holes.

2. The combined profiled gear according to claim 1, characterized in that: Both the external gear body and the shaft hole body are integrally formed by powder metallurgy.

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