CN212407494U

CN212407494U - Bevel gear

Info

Publication number: CN212407494U
Application number: CN202021067311.7U
Authority: CN
Inventors: 江维斌
Original assignee: Zhejiang Changbo Machinery Co ltd
Current assignee: Zhejiang Changbo Machinery Co ltd
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2021-01-26
Anticipated expiration: 2030-06-11

Abstract

The utility model provides a bevel gear belongs to mechanical technical field. It has solved the short-lived, not high scheduling problem of job stabilization nature of current bevel gear. This bevel gear includes the gear body, the outer peripheral face of gear body has the awl tooth, the gear body has the connecting hole that the axial runs through and coaxial setting, the outer peripheral face of gear body has the radial evagination of round and links integrative annular portion with tooth tip, the back of gear body has the axial evagination and links integrative connecting portion, the external diameter of connecting portion is less than the external diameter of gear body, the connecting portion axial runs through there is the through-hole, the splined hole, the through-hole is located between connecting hole and the splined hole and the equal coaxial being linked together of three, the internal diameter of splined hole is greater than the internal diameter of through-hole and the inner of splined hole passes through the taper hole and passes through. The utility model has the advantages of preventing the end part of the bevel gear from cracking, having good working stability and the like.

Description

Bevel gear

Technical Field

The utility model belongs to the technical field of machinery, a gear, in particular to bevel gear are related to.

Background

Bevel gears are used to transmit motion and power between two intersecting shafts, and in general machines, the angle of intersection between the two shafts of a bevel gear is equal to 90 ° (but may not be 90 °), similar to cylindrical gears, which have reference cones, addendum cones, dedendum cones and base cones.

For example, chinese patent literature discloses a bevel gear structure of a main reducer [ application No.: 201720780757.6, respectively; authorization notice number: CN206918198U ], which comprises a shaft hole, a gear body, an oil filling tank, an oil collecting tank and tapered saw teeth, wherein the shaft hole is arranged at the central position of the gear body, the tapered saw teeth are arranged on the outer wall of the gear body, the oil filling tank and the oil collecting tank are sequentially arranged between the shaft hole and the tapered saw teeth, the oil filling tank is communicated with the oil collecting tank, the oil outlet of the oil filling tank is connected with an oil outlet hole arranged on the end face of the tapered saw teeth, and the inlet of the oil collecting tank is respectively in clearance connection with the.

Foretell main reducer's bevel gear structure is through the setting of oil tank and oil collection tank, lubricate the toper sawtooth, reducing wear, service life has been prolonged, but the structure is complicated, the inconvenient setting of oil tank and oil collection tank, and the oil outlet is difficult to process, workload can load the tip at the mating surface of toper sawtooth excessively, and the tooth end does not support, the condition that the tip bursts apart appears easily, cause whole drive mechanism's trouble or damage, and connect through the key piece, it is not ideal enough to connect the steadiness, job stabilization nature needs to improve.

Disclosure of Invention

The utility model aims at providing a can prevent that awl tooth tip from bursting apart, connecting the bevel gear that the steadiness is good, job stabilization nature is good to the above-mentioned problem that exists among the prior art.

The purpose of the utility model can be realized by the following technical proposal: the bevel gear is characterized in that the outer peripheral surface of the gear body is provided with a circle of annular part which radially protrudes outwards and is connected with the end part of the teeth into a whole, the back surface of the gear body is provided with a connecting part which axially protrudes outwards and is connected into a whole, the outer diameter of the connecting part is smaller than that of the gear body, the connecting part axially penetrates through a through hole and a spline hole, the through hole is positioned between the connecting hole and the spline hole, the through hole, the connecting part and the spline hole are coaxially communicated, and the inner diameter of the spline hole is larger than that of the through hole and the inner end of the spline hole is transited to the through hole through the taper hole.

In the bevel gear, an annular groove is formed at the intersection of the back surface of the gear body and the connecting part, the bottom of the groove is in fillet transition, the inner groove wall of the groove is flush with the outer wall of the connecting part, and the outer groove wall of the groove is a conical surface.

In the bevel gear, the back surface of the annular part, which is far away from the bevel teeth, is provided with a plurality of oil throwing grooves which are uniformly distributed in the circumferential direction and extend in the radial direction, and notches of the oil throwing grooves penetrate through the peripheral surface of the annular part.

In the bevel gear, the connecting part is embedded with a ring-shaped rubber ring I at the inner end of the spline hole, and the inner diameter of the rubber ring I is equal to the diameter of the large end of the taper hole. Rubber ring one is compressed tightly between connecting portion and gear shaft, plays buffering damping effect, improves and connects the steadiness, avoids gear shaft runout, and job stabilization nature is good.

In the bevel gear, the inner diameter of the connecting hole is larger than that of the through hole, and the inner wall of the connecting hole is supported with a second annular rubber ring. Rubber ring two is compressed tightly between connecting portion and gear shaft, further plays the buffering damping effect, improves and connects the steadiness, avoids the gear shaft runout, and job stabilization nature is good.

In the above bevel gear, the outer wall of the connecting portion is provided with a vibration-damping and noise-reducing structure.

In the bevel gear, the vibration-damping noise-reducing structure comprises a plurality of silica gel rings embedded in the outer wall of the connecting part.

Compared with the prior art, the bevel gear has the advantages of high structural strength, good lubricating property, difficult cracking of bevel teeth, long service life, good connection stability, good vibration and noise reduction effects and good working stability.

Drawings

Fig. 1 is a schematic sectional view of the present bevel gear.

Fig. 2 is a structural side view of the present bevel gear.

In the figure, 1, a gear body; 2. a bevel tooth; 3. connecting holes; 4. an annular portion; 5. a connecting portion; 6. a through hole; 7. a splined bore; 8. a taper hole; 9. a groove; 10. an oil throwing groove; 11. a first rubber ring; 12. a second rubber ring; 13. a silica gel ring.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the bevel gear comprises a gear body 1, the peripheral surface of the gear body 1 is provided with bevel teeth 2, the gear body 1 is provided with a connecting hole 3 which axially penetrates through and is coaxially arranged, the peripheral surface of the gear body 1 is provided with a ring of annular part 4 which radially protrudes outwards and is integrally connected with the end part of the teeth, the back surface of the gear body 1 is provided with a connecting part 5 which axially protrudes outwards and is integrally connected, the outer diameter of the connecting part 5 is smaller than that of the gear body 1, the connecting part 5 axially penetrates through a through hole 6 and a spline hole 7, the through hole 6 is positioned between the connecting hole 3 and the spline hole 7 and the three are coaxially communicated, the inner diameter of the spline hole 7 is larger than that of the through hole 6, and the inner end of the spline.

The bevel gear has the advantages that the arrangement of the annular part 4 enables the structural strength of the end part of the bevel tooth 2 to be high, the end part of the bevel tooth 2 can effectively bear working load without cracking, and the service life is long; spline hole 7 supplies the spline card that the gear shaft has to go into the cooperation, and connecting hole 3 supplies the gear shaft tight fit, and this bevel gear is many with the connection area of gear shaft like this, and it is good to connect the steadiness, and spline hole 7 atress is even, and conical surface in close contact with of taper hole 8 confession gear shaft avoids the gear shaft radial runout, and transmission moment is effectual, and job stabilization nature is good.

In further detail, an annular groove 9 is formed in the intersection of the back face of the gear body 1 and the connecting portion 5, the bottom of the groove 9 is in fillet transition, the inner groove wall of the groove 9 is flush with the outer wall of the connecting portion 5, the outer groove wall of the groove 9 is a conical surface, and the groove 9 weakens the rigidity of the intersection of the gear body 1 and the connecting portion 5, so that the intersection has a certain deformation buffer amount, the bearing limit of the end portion of the conical tooth 2 is increased, and the possibility of cracking of the end portion of the conical tooth 2 is further reduced; the back that awl tooth 2 was kept away from to annular portion 4 has six circumference equipartitions and radial extension to get rid of oil groove 10, gets rid of the notch of oil groove 10 and link up the outer peripheral face of annular portion 4, and when this bevel gear rotated, get rid of oil groove 10 and throw away lubricating oil, made lubricating oil effectively lubricate awl tooth 2 department, and the meshing is smooth and easy, avoids collapsing the tooth.

For the firm work stability that makes of connecting, connecting portion 5 inlays in the inner end department of splined hole 7 and is equipped with and is annular rubber ring 11, and the internal diameter of rubber ring 11 equals the diameter of the 8 main aspects of taper hole, and the internal diameter of connecting hole 3 is greater than the internal diameter of through-hole 6, and the inner wall of connecting hole 3 supports has and is annular rubber ring two 12.

The outer wall of connecting portion 5 is equipped with the damping and falls the structure of making an uproar, and the damping falls the structure of making an uproar and includes that two inlay locate the silica gel ring 13 of connecting portion 5 outer walls in this embodiment, and silica gel ring 13 plays the effect of absorption part vibration energy, reduces the radiation area of vibration source, reduces vibration and noise, and this bevel gear transmission stationarity is good.

Those not described in detail in this specification are within the skill of the art. The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A bevel gear comprises a gear body (1), wherein the peripheral surface of the gear body (1) is provided with bevel teeth (2), the gear body (1) is provided with a connecting hole (3) which axially penetrates through and is coaxially arranged, it is characterized in that the peripheral surface of the gear body (1) is provided with a ring-shaped part (4) which is radially outwards protruded and is connected with the end part of the teeth into a whole, the back of the gear body (1) is provided with a connecting part (5) which is axially convex and is connected into a whole, the outer diameter of the connecting part (5) is smaller than that of the gear body (1), the connecting part (5) is axially penetrated with a through hole (6) and a spline hole (7), the through hole (6) is positioned between the connecting hole (3) and the spline hole (7) and is coaxially communicated with the connecting hole, the inner diameter of the spline hole (7) is larger than that of the through hole (6), and the inner end of the spline hole (7) is transited to the through hole (6) through the taper hole (8).

2. The bevel gear according to claim 1, wherein the back surface of the gear body (1) and the connecting part (5) intersect to form an annular groove (9), the bottom of the groove (9) is in a rounded transition, the inner wall of the groove (9) is flush with the outer wall of the connecting part (5), and the outer wall of the groove (9) is a conical surface.

3. The bevel gear according to claim 2 characterized in that the back of the ring-shaped part (4) facing away from the bevel teeth (2) has a plurality of circumferentially distributed and radially extending oil slingers (10), the notches of the oil slingers (10) extending through the outer peripheral surface of the ring-shaped part (4).

4. The bevel gear according to claim 3 wherein the connecting portion (5) has a ring-shaped rubber ring I (11) embedded at the inner end of the splined hole (7), the inner diameter of the rubber ring I (11) being equal to the diameter of the large end of the tapered hole (8).

5. The bevel gear according to claim 4 characterized in that the inner diameter of the coupling hole (3) is larger than the inner diameter of the through hole (6), and the inner wall of the coupling hole (3) supports a second rubber ring (12) in the shape of a ring.

6. Bevel gear according to claim 5, characterised in that the outer wall of the connecting part (5) is provided with vibration and noise reducing structures.

7. The bevel gear according to claim 6, wherein the vibration and noise reduction structure comprises a plurality of silicone rings (13) embedded in the outer wall of the connecting portion (5).