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CN-224222875-U - Spiral bevel gear tooth top rounding device

CN224222875UCN 224222875 UCN224222875 UCN 224222875UCN-224222875-U

Abstract

The utility model belongs to the technical field of spiral bevel gear machining, and discloses a spiral bevel gear tooth top rounding device which comprises rounding equipment, wherein a fixing frame is arranged at the top of the rounding equipment, a cutter is arranged above an operation area of the rounding equipment, a protective cover is arranged on the outer surface of the cutter and is arranged on the fixing frame through an external transmission system, a cooling mechanism is arranged on the rounding equipment and comprises a high-pressure pump body arranged on the fixing frame, a spray head is arranged on the protective cover, the spraying direction of the spray head faces to a cutter head of the cutter, an oil storage tank is arranged on the rounding equipment, a liquid inlet pipe is arranged between the high-pressure pump body and the oil storage tank and is communicated with the oil storage tank, a liquid outlet channel is arranged between the spray head and the high-pressure pump body, the cutter is made of hard alloy, and the surface of the cutter head of the cutter is coated with a titanium aluminum nitride wear-resistant coating. The utility model not only is convenient for cooling the cutter, but also can avoid the phenomenon of tipping caused by uneven heat stress generated by heating.

Inventors

  • YI XIANGZE
  • SHENG JIANHUA

Assignees

  • 长沙斯瑞机械有限公司

Dates

Publication Date
20260512
Application Date
20250509

Claims (7)

  1. 1. The spiral bevel gear tooth top rounding device comprises rounding equipment (1) and is characterized in that a fixing frame (101) is installed at the top of the rounding equipment (1), a cutter (2) is arranged above an operation area of the rounding equipment (1), a protective cover (3) is arranged on the outer surface of the cutter (2), and the protective cover (3) is installed on the fixing frame (101) through an external transmission system; Install cooling body on the rounding equipment (1), cooling body including install in high pressure pump body (5) on mount (101), install shower nozzle (4) on protection casing (3), just the direction of injection of shower nozzle (4) is towards the tool bit of cutter (2), install batch oil tank (10) on the rounding equipment (1), high pressure pump body (5) with be equipped with feed liquor pipe (9) between batch oil tank (10), just feed liquor pipe (9) with batch oil tank (10) are linked together, shower nozzle (4) with be equipped with the flowing back passageway between batch oil tank (5).
  2. 2. The spiral bevel gear tooth top rounding device according to claim 1, wherein the cutter (2) is made of hard alloy, and the surface of the cutter head of the cutter (2) is coated with a titanium aluminum nitride wear-resistant coating.
  3. 3. The spiral bevel gear tooth tip rounding device according to claim 1, wherein the liquid discharge channel is composed of a liquid discharge pipe (6), a hollow box (7) and a connection hose (8), the hollow box (7) is mounted on the fixing frame (101), the liquid discharge pipe (6) is mounted between the hollow box (7) and the high-pressure pump body (5), the liquid discharge pipe (6) is communicated with the hollow box (7), the connection hose (8) is mounted between the hollow box (7) and the spray head (4), and the connection hose (8) is communicated with the hollow box (7) and the spray head (4).
  4. 4. The spiral bevel gear tooth tip rounding device according to claim 1, wherein an oil filler pipe (1001) for filling lubricating oil is fixedly installed at the top of the oil storage tank (10), and the oil filler pipe (1001) is communicated with the oil storage tank (10).
  5. 5. The spiral bevel gear tooth top rounding device according to claim 1 is characterized in that an annular collecting groove (102) is formed in the periphery of an operation area of the rounding device (1), and a diversion hole (103) is formed in the inner cavity wall of the annular collecting groove (102); The device is characterized by further comprising a collecting device, wherein the collecting device is composed of a drainage tube (11) and a collecting cylinder (12), the drainage tube (11) is installed on the rounding equipment (1), the drainage tube (11) is communicated with the diversion hole (103), and the collecting cylinder (12) is located below the flow direction of liquid in the drainage tube (11).
  6. 6. The spiral bevel gear tooth tip rounding device according to claim 5, wherein the diversion hole (103) is obliquely arranged, the highest position of the diversion hole (103) is communicated with the annular collecting groove (102), and the lowest position of the diversion hole (103) is communicated with the drainage tube (11).
  7. 7. The spiral bevel gear tooth top rounding device according to claim 5, wherein a placement plate (104) is installed on the rounding device (1), a positioning groove (105) is formed in the top of the placement plate (104), a positioning convex column (1201) which is formed in an integrated mode and corresponds to the positioning groove (105) is arranged at the bottom of the collecting cylinder (12), the positioning convex column (1201) is matched with the positioning groove (105), and the collecting cylinder (12) is detachably installed on the placement plate (104) through the positioning groove (105) and the positioning convex column (1201).

Description

Spiral bevel gear tooth top rounding device Technical Field The utility model relates to the technical field of spiral bevel gear machining, in particular to a spiral bevel gear tooth top rounding device. Background The spiral bevel gear tooth top rounding device is a special device or tool for rounding the tooth top edge of the spiral bevel gear. The core function of the gear tooth top arc transition processing method is to carry out arc transition processing on the sharp edge of the gear tooth top in a mechanical or numerical control mode so as to improve the mechanical property and durability of the gear. The spiral bevel gear is widely applied to the field of mechanical transmission, the tooth top edges of the spiral bevel gear need to be rounded to reduce stress concentration and improve fatigue life, the traditional rounding method is mainly processed by adopting a common chamfering machine tool, the problem of short service life of the cutter exists, and particularly, a hard alloy cutter is easy to collapse due to uneven heat stress generated by heating, so that the tooth top rounding device for the spiral bevel gear is provided. Disclosure of utility model The utility model is provided for solving the problem that the prior rounding method mainly adopts a common chamfering machine tool to process and has short service life. The utility model aims to provide a spiral bevel gear tooth top rounding device, which aims to prevent tipping caused by uneven heat stress generated by heating by cooling a hard alloy cutter in the spiral bevel gear machining process. In order to solve the technical problems, the utility model provides the following technical scheme: The arc tooth bevel gear tooth top rounding device comprises rounding equipment, wherein a fixing frame is arranged at the top of the rounding equipment, a cutter is arranged above an operation area of the rounding equipment, a protective cover is arranged on the outer surface of the cutter, and the protective cover is arranged on the fixing frame through an external transmission system; Install cooling body on the rounding equipment, cooling body including install in high pressure pump body on the mount, install the shower nozzle on the protection casing, just the injection direction of shower nozzle is towards the tool bit of cutter, install the batch oil tank on the rounding equipment, the high pressure pump body with be equipped with the feed liquor pipe between the batch oil tank, just the feed liquor pipe with the batch oil tank is linked together, the shower nozzle with be equipped with the flowing back passageway between the high pressure pump body. The technical scheme of the spiral bevel gear tooth top rounding device comprises that the cutter is made of hard alloy, and the surface of the cutter head of the cutter is coated with a titanium aluminum nitride wear-resistant coating. The technical scheme of the spiral bevel gear tooth crest rounding device comprises that a liquid discharge channel is formed by a liquid discharge pipe, a hollow box and a connecting hose, wherein the hollow box is arranged on a fixing frame, the liquid discharge pipe is arranged between the hollow box and a high-pressure pump body and is communicated with the hollow box, the connecting hose is arranged between the hollow box and a spray head, and the connecting hose is communicated with the hollow box and the spray head. The technical scheme of the spiral bevel gear tooth top rounding device is that an oil injection pipe for injecting lubricating oil is fixedly arranged at the top of an oil storage tank, and the oil injection pipe is communicated with the oil storage tank. As the technical scheme of the spiral bevel gear tooth crest rounding device, the periphery of the rounding equipment operation area is provided with an annular collecting groove, and the inner cavity wall of the annular collecting groove is provided with a diversion hole; The device comprises a drainage tube and a collection cylinder, wherein the drainage tube is arranged on the rounding device and is communicated with the diversion hole, and the collection cylinder is positioned below the flow direction of liquid in the drainage tube. As the technical scheme of the spiral bevel gear tooth crest rounding device, the spiral bevel gear tooth crest rounding device is characterized in that the flow guide holes are obliquely arranged, the highest positions of the flow guide holes are communicated with the annular collecting groove, and the lowest positions of the flow guide holes are communicated with the drainage tube. The technical scheme of the spiral bevel gear tooth crest rounding device comprises that a placement plate is arranged on rounding equipment, a positioning groove is formed in the top of the placement plate, a positioning convex column which is integrally formed and corresponds to the positioning groove is arranged at the bottom of a collecting cylinder, the positioning convex colu