CN220523229U - High-temperature-resistant and high-pressure-resistant bevel gear - Google Patents

Abstract

The utility model relates to the technical field of gear processing, in particular to a high-temperature and high-pressure resistant bevel gear which comprises an expansion gap, wherein the fan-blade-shaped expansion gap can generate air flow when the gear rotates, so that the cooling effect of gear teeth is further improved, the air flow can take away heat on the gear teeth, heat dissipation and transmission of the heat are promoted, the problem that the local temperature of the gear teeth is higher is solved, the gear teeth can change in size due to heating, partial thermal expansion can be allowed to occur through the expansion gap, stress concentration and deformation caused by the thermal expansion are reduced, the arc shape can effectively reduce the stress concentration at the gear roots, a larger contact area can be provided when the arc tooth shape is used for transmitting load, the stress concentration is reduced, the stress is uniformly distributed on the gear teeth, the pressure resistance is improved, and the problem that the contact stress concentration between the gear teeth is easily caused when the gear works under the high-pressure condition is solved, and the gear deformation or damage is caused.

Description

High-temperature-resistant and high-pressure-resistant bevel gear

Technical Field

The utility model relates to the technical field of gear machining, in particular to a high-temperature and high-pressure resistant bevel gear.

Background

The bevel gear with high temperature and high pressure resistance generally has the advantages of efficient transmission, stable operation, large transmission ratio, strong bearing capacity, low thermal expansion coefficient and the like, and can keep the transmission precision and reliability under the condition of large temperature change, so that the bevel gear is widely applied to various industries and machinery.

According to the search of Chinese utility model publication number: CN106555863a discloses a high temperature resistant industrial gear, which comprises a body, wherein the body comprises a through hole, a reinforcing rib and a positioning hole, and a plurality of radiating fins arranged on the surface of the body can timely reduce the surface temperature of the body, prevent the body from being damaged by high temperature, and prolong the service life of the body.

However, when the above technical scheme is implemented, there are the following problems: in the gear meshing process, the tooth surface can generate friction, so that the local temperature of the tooth surface is higher, the radiating fins can not directly reduce the local temperature of the tooth surface, the hardness of tooth surface materials can be reduced by high temperature, and therefore the bearing capacity and the wear resistance of the gear are reduced.

Disclosure of Invention

The utility model aims to provide a bevel gear resistant to high temperature and high pressure so as to solve the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a high temperature high pressure resistant bevel gear, includes gear inclined plane and high temperature high pressure resistant structure, the through-hole has been seted up at the inside center of gear inclined plane, the outside of gear inclined plane is provided with high temperature high pressure resistant structure, high temperature high pressure resistant structure includes teeth of a cogwheel, inflation clearance, first reinforcement rib plate, tooth top, second reinforcement rib plate, wheel groove, carborundum coating, gear end face, recess, joint piece, connecting block and flabellum, be provided with the pivot in the through-hole.

Preferably, a circle of gear teeth is arranged on the periphery of the gear inclined plane, and the root parts of the gear teeth are arranged in an arc shape.

Preferably, an expansion gap is arranged in the gear teeth, and the expansion gap is in a fan blade shape.

Preferably, a first reinforcing rib is provided on one side of the expansion gap, and a second reinforcing rib is provided on the tooth tip.

Preferably, the surfaces of the gear teeth and the gear grooves are coated with silicon carbide coatings, and the gear teeth are in an arc tooth shape.

Preferably, a groove is formed in the end face of the gear, and a clamping block is clamped in the groove.

Preferably, a connecting block is arranged above the clamping block, and the connecting block is arranged in a conical shape.

Preferably, a through hole is formed in the center of the inside of the connecting block, and a fan blade is arranged on one side of the connecting block.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, through the expansion gap, when the gear rotates, the fan blade-shaped expansion gap can generate air flow, so that the cooling effect of the gear teeth is further increased, the air flow can take away heat on the gear surfaces, heat dissipation and transmission of the heat are promoted, the problem that the local temperature of the gear surfaces is higher is solved, when the gear is heated, the size of the gear teeth can be changed due to the effect of thermal expansion, partial thermal expansion can be allowed to occur through the expansion gap, stress concentration and deformation caused by the thermal expansion are reduced, the arc shape can effectively reduce the stress concentration at the gear roots, and the arc tooth shape can provide a larger contact area when the load is transmitted, so that the stress concentration is reduced, the stress is uniformly distributed on the gear surfaces, thereby improving the pressure resistance capability, and solving the problem that the contact stress concentration between the gear surfaces is easy to be caused when the gear works under high pressure conditions, thereby causing the deformation or damage of the gear.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a schematic diagram of the internal and external structure of the gear bevel of the present utility model.

Fig. 3 is a schematic view of the gear tooth structure of the present utility model.

Fig. 4 is a schematic view of a fan blade connection structure according to the present utility model.

In the figure: 1. a gear bevel; 2. a through hole; 3. a high temperature and high pressure resistant structure; 301. gear teeth; 302. an expansion gap; 303. a first reinforcing rib; 304. tooth tops; 305. a second reinforcing rib; 306. wheel grooves; 307. a silicon carbide coating; 308. the end face of the gear; 309. a groove; 310. a clamping block; 311. a connecting block; 312. a fan blade; 4. a rotating shaft.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, an embodiment of the present utility model is provided: the utility model provides a high temperature high pressure resistant bevel gear, includes gear inclined plane 1 and high temperature high pressure resistant structure 3, and through-hole 2 has been seted up at the inside center of gear inclined plane 1, and the outside of gear inclined plane 1 is provided with high temperature high pressure resistant structure 3, and high temperature high pressure resistant structure 3 includes teeth of a cogwheel 301, inflation clearance 302, first reinforcing rib 303, tooth top 304, second reinforcing rib 305, wheel groove 306, carborundum coating 307, gear end 308, recess 309, joint piece 310, connecting block 311 and flabellum 312, is provided with pivot 4 in the through-hole 2.

Specifically, a circle of gear teeth 301 is arranged on one circle of the gear inclined plane 1, the root of the gear teeth 301 is in a circular arc shape, and the circular arc shape can effectively reduce stress concentration at the tooth root, so that the formation and expansion of tooth root cracks can be avoided, and the service life of the gear is prolonged.

Specifically, the expansion gap 302 is provided in the gear 301, the expansion gap 302 is in a fan blade shape, when the gear rotates, the fan blade-shaped expansion gap 302 can generate air flow, so that the cooling effect of the gear 301 is further increased, the air flow can take away heat on the tooth surface, heat dissipation and transmission are promoted, when the gear is heated, the size of the gear 301 can be changed due to the effect of thermal expansion, partial thermal expansion can be allowed to occur through the expansion gap 302, and stress concentration and deformation caused by the thermal expansion are reduced.

Specifically, the expansion gap 302 is provided with the first reinforcing rib 303 on one side, and the tooth tip 304 is provided with the second reinforcing rib 305, and the presence of the reinforcing rib can significantly increase the rigidity of the gear teeth 301, so that deformation and vibration of the gear teeth 301 can be reduced.

Specifically, the surfaces of the gear teeth 301 and the gear grooves 306 are coated with the silicon carbide coating 307, the gear teeth 301 are arc-shaped, the silicon carbide coating 307 can further increase the high temperature resistance and the wear resistance of the gear teeth 301, the arc-shaped can provide a larger contact area when the load is transferred, the stress concentration is reduced, and the stress is uniformly distributed on the tooth surfaces, so that the pressure resistance is improved.

Specifically, a groove 309 is formed on the gear end face 308, a clamping block 310 is clamped in the groove 309, and a fixed gear and a connecting block 311 are connected with the groove 309 through the clamping block 310.

Specifically, the connecting block 311 is arranged above the clamping block 310, the connecting block 311 is in a conical shape, the conical connecting block 311 can be connected with the gear inclined plane 1, and heat dissipation is carried out on the gear body under the condition that gear engagement is not affected.

Specifically, the through hole 2 is formed in the center of the inside of the connecting block 311, the fan blade 312 is arranged on one side of the connecting block 311, and the air around the gear is driven to flow through the rotation of the fan blade 312, so that heat is dissipated for the gear body.

Working principle: when the gear is in use, the clamping block 310 is clamped in the groove 309, so that the connecting block 311 is fixed above the gear, the gear and the connecting block 311 are connected on the rotating shaft 4, the connecting block 311 above the gear rotates together, the fan blades 312 rotate to cool the gear body, the fan blade-shaped expansion gap 302 can generate air flow in the gear rotation process, the cooling effect of the gear teeth 301 is further improved, the air flow can take away heat on the gear surfaces, heat dissipation and transmission are promoted, when the gear is heated, the size of the gear teeth 301 can be changed due to the effect of thermal expansion, partial thermal expansion can be allowed to occur through the expansion gap 302, and stress concentration and deformation caused by the thermal expansion are reduced.

The foregoing is merely exemplary embodiments of the present utility model, and specific structures and features that are well known in the art are not described in detail herein. It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (8)

1. The utility model provides a high temperature high pressure resistant bevel gear, includes gear bevel (1) and high temperature high pressure resistant structure (3), its characterized in that: the gear inclined plane (1) is characterized in that a through hole (2) is formed in the center of the inside of the gear inclined plane (1), a high-temperature and high-pressure resistant structure (3) is arranged on the outer side of the gear inclined plane (1), the high-temperature and high-pressure resistant structure (3) comprises gear teeth (301), an expansion gap (302), a first reinforcing rib plate (303), tooth tops (304), second reinforcing rib plates (305), wheel grooves (306), silicon carbide coatings (307), gear end faces (308), grooves (309), clamping blocks (310), connecting blocks (311) and fan blades (312), and rotating shafts (4) are arranged in the through holes (2).

2. The high temperature and high pressure resistant bevel gear of claim 1 wherein: a circle of gear teeth (301) is arranged on the periphery of the gear inclined surface (1), and the root parts of the gear teeth (301) are arranged in an arc shape.

3. The high temperature and high pressure resistant bevel gear of claim 1 wherein: an expansion gap (302) is arranged in the gear teeth (301), and the expansion gap (302) is in a fan blade shape.

4. The high temperature and high pressure resistant bevel gear of claim 1 wherein: a first reinforcing rib (303) is provided on one side of the expansion gap (302), and a second reinforcing rib (305) is provided on the tooth tip (304).

5. The high temperature and high pressure resistant bevel gear of claim 1 wherein: the surfaces of the gear teeth (301) and the wheel grooves (306) are coated with silicon carbide coatings (307), and the gear teeth (301) are in an arc tooth shape.

6. The high temperature and high pressure resistant bevel gear of claim 1 wherein: the gear end face (308) is provided with a groove (309), and a clamping block (310) is clamped in the groove (309).

7. The high temperature and high pressure resistant bevel gear of claim 1 wherein: a connecting block (311) is arranged above the clamping block (310), and the connecting block (311) is arranged in a conical shape.

8. The high temperature and high pressure resistant bevel gear of claim 1 wherein: a through hole (2) is formed in the center of the inside of the connecting block (311), and a fan blade (312) is arranged on one side of the connecting block (311).