Search

CN-224209591-U - Direct-injection type rotating shaft for grinding wheel and protective cover

CN224209591UCN 224209591 UCN224209591 UCN 224209591UCN-224209591-U

Abstract

The application relates to the technical field of cooling of grinding devices and discloses a direct-injection type rotating shaft for a grinding wheel and a protective cover, wherein the direct-injection type rotating shaft for the grinding wheel comprises a first shaft body, a second shaft body and a third shaft body, wherein the second shaft body is coaxially arranged between the first shaft body and the third shaft body; the protective cover comprises a first mounting ring, a second mounting ring and a plugging column, wherein the first mounting ring and the second mounting ring are detachably connected, a placement area is formed between the first mounting ring and the second mounting ring, the second shaft is arranged in the placement area, and the plugging column is arranged on the second mounting ring and is in plug fit with the spraying opening. The application has the effect of being convenient for cooling the grinding surface.

Inventors

  • QIAN HAO

Assignees

  • 无锡市科之鑫机械科技有限公司

Dates

Publication Date
20260508
Application Date
20250528

Claims (10)

  1. 1. The direct-injection rotating shaft for the grinding wheel is characterized by comprising a first shaft body, a second shaft body and a third shaft body, wherein: The second shaft body is coaxially arranged between the first shaft body and the third shaft body; the third shaft body is used for coaxially mounting a grinding wheel; A diversion channel for introducing cooling liquid is arranged between the first shaft body and the second channel; The wall of the diversion channel is close to the grinding wheel a spraying port is arranged on one side of the water tank; the spray opening is parallel to the axis of the second shaft body.
  2. 2. A direct injection spindle for a grinding wheel according to claim 1, characterized in that: The distance between the center line of the spray opening and the axis of the second shaft body is larger than the distance between the outer wall of the grinding wheel and the center line of the grinding wheel.
  3. 3. A direct injection spindle for a grinding wheel according to claim 1, characterized in that: The diversion channel comprises a first channel and a second channel, wherein: The second channel is circumferentially provided with a plurality of channels around the axis of the second shaft body.
  4. 4. A direct injection spindle for a grinding wheel according to claim 3, characterized in that: The second channel includes a third channel and a fourth channel, wherein: The central line of the third channel intersects with the axis of the second shaft body at a point; The center line of the fourth channel is parallel to the axis of the second shaft body; The third passage communicates with the first passage and the fourth passage.
  5. 5. The direct-injection type rotating shaft for grinding wheels according to claim 4, wherein: The third channel penetrates through the outer wall of the second shaft body; Third channel end the sealing is provided with a blocking block.
  6. 6. A direct injection spindle for a grinding wheel according to claim 1, characterized in that: the outer wall of the second shaft body is provided with an inclined plane; the spray opening is arranged on the inclined plane.
  7. 7. The protective cover is matched with the direct-injection type rotating shaft for the grinding wheel according to any one of claims 1-5, and is characterized by comprising a first mounting ring, a second mounting ring and a blocking column, wherein: The first mounting ring and the second mounting ring are detachably connected; a placement area is formed between the first mounting ring and the second mounting ring; the second shaft body is arranged in the placement area; the blocking column is arranged on the second mounting ring and is in plug-in connection with the spraying port.
  8. 8. A protective cover according to claim 7, wherein: The first mounting ring and the second mounting ring are in attractive connection through magnetic force.
  9. 9. A protective cover according to claim 7, wherein: the end of the plugging column is provided with a guide surface.
  10. 10. A protective cover according to claim 7, wherein: An elastic ring is sleeved on the plugging column.

Description

Direct-injection type rotating shaft for grinding wheel and protective cover Technical Field The application relates to the technical field of cooling of polishing devices, in particular to a direct-injection type rotating shaft for a grinding wheel and a protective cover. Background The internal rounding is a process method for grinding the surface of an inner hole of a workpiece, and can ensure that the inner hole meets the requirements of higher roundness, cylindricity and surface roughness. The device for polishing the inner hole of the workpiece mainly comprises a grinding wheel and a grinding wheel shaft, one end of the grinding wheel is in transmission connection with a power source of the polishing device, and the grinding wheel is coaxially and fixedly connected with the other end of the grinding wheel shaft. When the inner hole of the workpiece is required to be polished, the grinding wheel is driven to rotate through the grinding wheel shaft, and the outer ring wall of the grinding wheel is contacted with the inner hole wall of the workpiece. When the depth of the inner hole of the workpiece is deeper, the length of the grinding wheel is relatively longer, a large amount of heat is generated when the grinding wheel polishes the inner hole wall of the workpiece, and the grinding wheel, the inner hole wall of the workpiece and the processing surface are generally required to be cooled. The existing cooling device generally comprises a cooling pipe, wherein the cooling pipe is installed near an inner hole of a workpiece, cooling liquid is introduced into the cooling pipe, and when the inner hole wall of the workpiece is polished through a grinding wheel, the cooling liquid is sprayed towards the grinding wheel through the cooling pipe. However, when the inner hole wall of the workpiece is deep, the coolant discharged from the cooling pipe can be sprayed only to the position near the opening of the inner hole of the workpiece, and the inner hole depth of the workpiece is difficult to be sprayed. Disclosure of utility model In order to facilitate cooling of a grinding surface, the application provides a direct-injection type rotating shaft for a grinding wheel and a protective cover. The application provides a direct injection type rotating shaft for a grinding wheel, which adopts the following technical scheme: the utility model provides a grinding wheel is with directly spouting formula pivot, includes first axis body, second axis body and third axis body, wherein: The second shaft body is coaxially arranged between the first shaft body and the third shaft body; the third shaft body is used for coaxially mounting a grinding wheel; A diversion channel for introducing cooling liquid is arranged between the first shaft body and the second channel; The wall of the diversion channel is close to the grinding wheel a spraying port is arranged on one side of the water tank; the spray opening is parallel to the axis of the second shaft body. Optionally, the distance between the center line of the spray opening and the axis of the second shaft body is larger than the distance between the outer wall of the grinding wheel and the center line of the grinding wheel. Optionally, the diversion channel comprises a first channel and a second channel, wherein: The second channel is circumferentially provided with a plurality of channels around the axis of the second shaft body. Optionally, the second channel comprises a third channel and a fourth channel, wherein: The central line of the third channel intersects with the axis of the second shaft body at a point; The center line of the fourth channel is parallel to the axis of the second shaft body; The third passage communicates with the first passage and the fourth passage. Optionally, the third channel penetrates through the outer wall of the second shaft body; Third channel end the sealing is provided with a blocking block. Optionally, an inclined plane is arranged on the outer wall of the second shaft body; the spray opening is arranged on the inclined plane. A protective cover comprising a first mounting ring, a second mounting ring and a shutoff post, wherein: The first mounting ring and the second mounting ring are detachably connected; a placement area is formed between the first mounting ring and the second mounting ring; the second shaft body is arranged in the placement area; the blocking column is arranged on the second mounting ring and is in plug-in connection with the spraying port. Optionally, the first mounting ring and the second mounting ring are in attractive connection through magnetic force. Optionally, a guide surface is arranged at the end part of the plugging column. Optionally, an elastic ring is sleeved on the upper cover of the plugging column. In summary, the present application includes at least one of the following beneficial technical effects: 1. Through the design of the flow guide channel and the spray opening, the cooling liquid can