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CN-224212742-U - Cover type multifunctional ion nitriding furnace

CN224212742UCN 224212742 UCN224212742 UCN 224212742UCN-224212742-U

Abstract

The utility model discloses a hood-type multifunctional ion nitriding furnace, which relates to the technical field of metal surface treatment and comprises a furnace body structure, a circulating structure, a heating structure, a sealing structure and a clamping structure. The furnace body structure forms the wind-guiding passageway through inside and outside shell, and circulating structure's centrifugal flabellum drive nitrogen gas is leading-in wind-guiding passageway from the stove in, and the two-stage heating wire of cooperation heating structure carries out twice heating, promotes nitrogen gas intensification efficiency and stove internal temperature homogeneity. The sealing structure adopts a double-layer hollow sealing ring, dynamic sealing is realized through air pressure pressurization expansion, and the clamping structure utilizes air pressure to drive the clamping block to be automatically locked with the furnace body clamping groove, so that the installation flow is simplified. The device solves the problems of uneven heating, poor sealing performance and inconvenient disassembly and assembly of the traditional equipment through the circulating heating of the air guide channel and the design of the double-layer sealing ring and air pressure linkage clamping, and remarkably improves the nitriding treatment efficiency and the equipment reliability.

Inventors

  • LIU JUNXIONG
  • CHEN FENG
  • PAN DENG

Assignees

  • 武汉武热研热处理科技有限公司

Dates

Publication Date
20260508
Application Date
20250512

Claims (10)

  1. 1. The utility model provides a multi-functional ion nitriding furnace of cover type, a serial communication port, including furnace body structure (1), furnace body structure (1) top is equipped with circulation structure (2), furnace body structure (1) internally mounted has heating structure (3), the bottom of furnace body structure (1) is equipped with seal structure (4), the bottom fixedly connected with base (5) of seal structure (4), install block structure (6) in seal structure (4), furnace body structure (1) realize with the sealed block butt joint of base (5) through seal structure (4) and block structure (6), furnace body structure (1) is through circulation structure (2) and heating structure (3) realization to the cyclic heating of nitrogen gas and the effective heating of furnace body inner wall.
  2. 2. The hood-type multifunctional ion nitriding furnace according to claim 1, wherein the furnace body structure (1) comprises a furnace body shell (101), an air guide channel (102), an air inlet (103), an air outlet (104) and a nitrogen port (105), the furnace body shell (101) is divided into an inner layer and an outer layer, the air guide channel (102) is formed between the inner layer and the outer layer of the furnace body shell (101), the air inlet (103) is formed at the top end of the inner layer of the furnace body shell (101), the air outlet (104) is formed at the periphery of the bottom end of the inner layer of the furnace body shell (101), and the nitrogen port (105) is communicated with the inner layer of the furnace body shell (101).
  3. 3. The hood-type multifunctional ion nitriding furnace according to claim 2, wherein the circulation structure (2) comprises a driving motor (201), centrifugal fan blades (202), a first guide opening (203), a second guide opening (204), a connecting cone groove (205) and a gas collecting groove (206), the driving end of the driving motor (201) is connected with the centrifugal fan blades (202), the centrifugal fan blades (202) are respectively provided with the first guide opening (203) and the second guide opening (204), a driving shaft of the driving motor (201) is rotationally connected with the connecting cone groove (205), the gas collecting groove (206) is arranged inside the connecting cone groove (205), and the gas collecting groove (206) is communicated with the second guide opening (204).
  4. 4. A hood-type multifunctional ion nitriding furnace according to claim 3, wherein the heating structure (3) comprises a first air guide hood (301), a second air guide hood (302) and an electric heating wire (303), the first air guide hood (301) is fixedly arranged at the top end of the inner layer of the furnace body shell (101), and the second air guide hood (302) is arranged in the air guide channel (102).
  5. 5. The hood-type multifunctional ion nitriding furnace according to claim 4, wherein the first guide hood (301) and the second guide hood (302) are respectively provided with a guide groove, an electric heating wire (303) is fixedly arranged in each guide groove, and the electric heating wire (303) and the driving motor (201) are electrically connected with an external power supply.
  6. 6. The hood-type multifunctional ion nitriding furnace according to claim 5, wherein the sealing structure (4) comprises a butt joint block (401), a first sealing ring (402), a second sealing ring (403), an air inlet groove (404) and a one-way valve (405), a communication groove is formed in the butt joint block (401), the first sealing ring (402) and the second sealing ring (403) are respectively arranged on the inner side and the outer side of the butt joint block (401), an air guide ring is fixedly connected to the bottom end of the butt joint block (401) in a sealing mode, and the air inlet groove (404) is formed in the air guide ring.
  7. 7. The hood-type multifunctional ion nitriding furnace according to claim 6, wherein a one-way valve (405) is installed on one side of the gas guide ring, and sealing grooves respectively matched with the first sealing ring (402) and the second sealing ring (403) are formed at the bottom ends of the inner layer and the outer layer of the furnace body shell (101).
  8. 8. The hood-type multifunctional ion nitriding furnace according to claim 7, wherein the first sealing ring (402) and the second sealing ring (403) are hollow, and the hollow grooves of the first sealing ring (402) and the second sealing ring (403) are communicated with the communicating grooves of the butt joint block (401).
  9. 9. The hood-type multifunctional ion nitriding furnace according to claim 8, wherein the clamping structure (6) comprises a fixing shell (601), a guide hole (602), a guide rod (603), a clamping block (604), a compression spring (605), a limiting plate (606) and a baffle plate (607), the guide hole (602) is formed in the fixing shell (601), the guide rod (603) is installed in the fixing shell (601), the clamping block (604) is connected with the guide rod (603) in a sliding mode, and the baffle plate (607) is fixedly connected to the clamping block (604).
  10. 10. The hood-type multifunctional ion nitriding furnace as claimed in claim 9, wherein a limiting plate (606) is arranged in the fixing shell (601), a compression spring (605) is arranged on one side of the limiting plate (606), the fixing shell (601) is fixedly arranged in a mounting hole formed in the periphery of the butt joint block (401), and a clamping groove matched with the clamping block (604) is formed in the outer layer of the furnace body shell (101).

Description

Cover type multifunctional ion nitriding furnace Technical Field The utility model relates to the technical field of metal surface treatment, in particular to a hood-type multifunctional ion nitriding furnace. Background The ion nitriding technology is a heat treatment technology for forming a strengthening layer on the surface of metal through nitrogen ion permeation, and is widely applied to the fields of machine manufacturing, automobile parts and the like. The traditional ion nitriding furnace generally adopts a single heating mode, and directly heats a workpiece and nitrogen through an electric heating wire in the furnace, but the problems of uneven nitrogen circulation, large temperature distribution difference in the furnace, high energy consumption and the like exist. In addition, the sealing of furnace body and base relies on bolt-up and static sealing washer more, installs loaded down with trivial details and easily causes the leakage because of the sealing washer ageing after long-term use, influences process stability. In the prior art, the nitrogen circulation path of the ion nitriding furnace is simple in design, only depends on a single fan to drive gas to flow, so that nitrogen is insufficiently heated to influence nitriding efficiency, and the furnace body heat preservation layer is separated from the heat conduction structure, so that uniform temperature rise is difficult to realize. Meanwhile, the traditional sealing structure needs to manually and repeatedly adjust the pretightening force of the bolt to maintain tightness, the maintenance cost is high, the clamping device adopts mechanical lock catches, the operation is complex, and the automatic butt joint is difficult to realize. These problems limit the efficiency improvement and device reliability of the ion nitridation process. Disclosure of utility model The utility model provides a hood-type multifunctional ion nitriding furnace aiming at the problems in the related art so as to overcome the technical problems in the prior art. For this purpose, the utility model adopts the following specific technical scheme: The utility model provides a multi-functional ion nitriding furnace of cover, includes the furnace body structure, and furnace body structure top is equipped with circulation structure, and furnace body structure internally mounted has heating structure, and furnace body structure's bottom is equipped with seal structure, seal structure's bottom fixedly connected with base, installs the block structure in the seal structure, and furnace body structure realizes the sealed block butt joint with the base through seal structure and block structure, and furnace body structure realizes the circulation heating and the effective heating of furnace body inner wall to nitrogen gas through circulation structure and heating structure. Further, the furnace body structure comprises a furnace body shell, an air guide channel, an air inlet, an air outlet and a nitrogen port, wherein the furnace body shell is divided into an inner layer and an outer layer, the air guide channel is formed between the inner layer and the outer layer of the furnace body shell, the air inlet is arranged at the top end of the inner layer of the furnace body shell, the air outlet is formed at the periphery of the bottom end of the inner layer of the furnace body shell, and the nitrogen port is communicated with the inner layer of the furnace body shell. Further, the circulation structure comprises a driving motor, centrifugal fan blades, a first guide opening, a second guide opening, a connecting cone groove and a gas collecting groove, wherein the driving end of the driving motor is connected with the centrifugal fan blades, the centrifugal fan blades are respectively provided with the first guide opening and the second guide opening, a driving shaft of the driving motor is rotationally connected with the connecting cone groove, the gas collecting groove is arranged inside the connecting cone groove, and the gas collecting groove is communicated with the second guide opening. Further, the heating structure comprises a first air guide sleeve, a second air guide sleeve and an electric heating wire, wherein the first air guide sleeve is fixedly arranged at the top end of the inner layer of the furnace body shell, the second air guide sleeve is arranged in the air guide channel, the first air guide sleeve and the second air guide sleeve are respectively provided with an air guide groove, the electric heating wire is fixedly arranged in the air guide grooves, and the electric heating wire, the driving motor and the external power supply are electrically connected. Further, seal structure includes butt joint piece, first sealing washer, the second sealing washer, the air inlet tank, the check valve, the inside of butt joint piece is equipped with the intercommunication groove, the inside and outside of butt joint piece is equipped with first sealing washer and second s