CN217458466U - Pump cylinder pit furnace high-temperature carbonitriding assembled suspension device - Google Patents
Pump cylinder pit furnace high-temperature carbonitriding assembled suspension device Download PDFInfo
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- CN217458466U CN217458466U CN202221260727.XU CN202221260727U CN217458466U CN 217458466 U CN217458466 U CN 217458466U CN 202221260727 U CN202221260727 U CN 202221260727U CN 217458466 U CN217458466 U CN 217458466U
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- air guide
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Abstract
The utility model provides a pump barrel pit furnace high temperature carbonitriding assembled linkage, including the platform sling, the middle part of platform sling is equipped with the air guide cylinder mounting hole, and air guide cylinder mounting hole week all is equipped with a plurality of pump barrel mounting holes, has set firmly the air guide cylinder in the air guide cylinder mounting hole, and pump barrel end fixing is in the pump barrel mounting hole, and the platform sling top is equipped with the hook mechanism who is connected with it. When the device is used, a pump cylinder is arranged, devices with corresponding sizes are selected for pump cylinders with different calibers, an air guide cylinder is arranged, meanwhile, a gap between the air guide cylinder and an air guide cylinder mounting hole is sealed by asbestos, a gap between the pump cylinder and a pump cylinder mounting round hole is sealed by asbestos, so that the air in the furnace is guided to move, and then a travelling crane and a lifting hook mechanism are used for lifting the device for operation. The device has the effects of positioning in a high-temperature furnace, preventing the workpiece from falling off and realizing the directional movement of carbonitriding gas, and is safe, reliable and simple and convenient to operate.
Description
Technical Field
The utility model relates to a field of pump barrel thermal treatment, concretely relates to pump barrel pit furnace high temperature carbonitriding assembled linkage.
Background
The highest temperature of the heat treatment pump cylinder pit furnace during high-temperature carbonitriding operation can reach 950 ℃, and the pump cylinders produced in batches are generally hung on an annular tool at a furnace mouth or vertically placed at the furnace bottom when being loaded into the furnace for high-temperature carbonitriding, and the methods have the following defects: (1) the furnace mouth annular tool can not work normally due to failure, deformation and cracking caused by high temperature under the condition of high temperature and long-time heat preservation. (2) The pump barrel is hung on the furnace mouth annular tool, the contact surface can not be sealed, so that the carburizing gas can not form ordered convection from top to bottom in the carbonitriding atmosphere furnace. (3) The central pump cylinder-free forced gas guide cylinder on the furnace opening annular tool also ensures that the carbonitriding atmosphere in the furnace can not reach the bottom of the furnace and directly influences the partial inner hole at the bottom of the pump cylinder to have no carbonitriding layer. (4) The pump barrel carburizing process technology has the advantages that the heating temperature is up to 920 ℃, the heat preservation time in a workpiece furnace is up to 12 hours, and the heat resistance of common metal materials cannot meet the requirements of the working condition. (5) The pump cylinder is made of 20# steel, has the length of 6-8 m, the inner diameter of 38mm, 44mm, 56mm, 70mm and 83mm, the thickness of the pump cylinder of 6mm and other dimensional specifications, and is difficult to guide the atmosphere in the furnace.
For a hanger for high-temperature carburization operation of a pump cylinder of a pit furnace, an assembled hanger which is difficult to lose effectiveness at high temperature, simple in structure, stable in operation and capable of guiding gas in the furnace directionally is needed.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides pump cylinder pit furnace high temperature carbonitriding assembled linkage, solves the problem among the above-mentioned background art.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: including the platform sling, the middle part of platform sling is equipped with the gas cylinder mounting hole, and gas cylinder mounting hole week all is equipped with a plurality of pump barrel mounting holes, has set firmly the gas cylinder in the gas cylinder mounting hole, and pump barrel end fixing is equipped with the lifting hook mechanism of being connected with it in the pump barrel mounting hole, the platform sling top.
In the preferred scheme, a plurality of rings are fixedly arranged above a support ring in the lifting hook mechanism, a plurality of lifting hooks are fixedly arranged on the periphery of the lower part, a plurality of lifting lugs are fixedly arranged on the periphery of the hanging scaffold, and the lifting hooks are fixed in the lifting lugs.
In the preferred scheme, be equipped with articulated seat between lifting hook and the lock ring, articulated seat is fixed in the below of lock ring, and lifting hook one end is articulated through round pin axle and articulated seat, and the other end supports and leans on in the lug, and the lifting hook middle part has set firmly the holding ring.
In the preferred scheme, one end of the air guide cylinder is provided with an air inlet taper hole, the other end of the air guide cylinder is provided with an air guide tube, a positioning table is arranged between the air inlet taper hole and the air guide tube, the positioning table abuts against the air guide cylinder mounting hole, and the air guide tube is inserted into the air guide cylinder mounting hole.
In the preferred scheme, a sealing inclined plane is arranged on the positioning table and the gas cylinder mounting hole, and asbestos is filled in the sealing inclined plane.
In the preferred scheme, a hanging head is fixedly arranged at the end part of the pump barrel and sleeved at the end part of the pump barrel, the hanging head is fixedly connected with the pump barrel through a pin shaft, and the hanging head abuts against a mounting hole of the pump barrel;
asbestos is filled in a gap between the pump cylinder and the pump cylinder mounting hole.
In the preferred scheme, the hanging scaffold is formed by integral precision casting, and the material is ZG40Cr25Ni35 RE.
The utility model provides a pump barrel pit furnace high temperature carbonitriding assembled linkage loads into the pump barrel during use, and the pump barrel of different bores should select the device of corresponding size to load into the inflator, simultaneously with the clearance between asbestos seal inflator and the inflator mounting hole, clearance between reuse asbestos seal pump barrel and the pump barrel installation round hole for make guided motion in the gaseous stove, reuse driving and lifting hook mechanism lift by crane the device and carry out the operation. The device has the effects of positioning in the high-temperature furnace, preventing the workpiece from falling off and realizing the directional movement of carbonitriding gas, is safe and reliable, is simple and convenient to operate, and is suitable for popularization and use.
Drawings
The invention will be further explained with reference to the following figures and examples:
FIG. 1 is a side view of the overall structure of the present invention;
fig. 2 is a partial enlarged view a of the present invention;
FIG. 3 is a side view of the shaft of the hook mechanism of the present invention;
FIG. 4 is an exploded view of the platform of the present invention;
in the figure: a hook mechanism 1; a support ring 101; a lifting ring 102; a hinge base 103; a hook 104; a positioning ring 105; a hanging scaffold 2; a lifting lug 201; a pump barrel mounting hole 202; a gas cylinder mounting hole 203; an air guide cylinder 3; an air inlet cone opening 301; an airway tube 302; a positioning stage 303; a pump barrel 4; a hanging head 5; and a pin 6.
Detailed Description
Example 1
As shown in fig. 1 to 4, the high-temperature carbonitriding assembled suspension device for a pump barrel shaft furnace comprises a hanging scaffold 2, wherein a gas cylinder mounting hole 203 is formed in the middle of the hanging scaffold 2, a plurality of pump barrel mounting holes 202 are formed in the periphery of the gas cylinder mounting hole 203, a gas cylinder 3 is fixedly arranged in the gas cylinder mounting hole 203, the end of the pump barrel 4 is fixed in the pump barrel mounting hole 202, and a hook mechanism 1 connected with the hanging scaffold 2 is arranged above the hanging scaffold. According to the structure, the end parts of the pump cylinders 4 are hermetically fixed in the pump cylinder mounting holes 202, the gas cylinders 3 are hermetically fixed on the gas cylinder mounting holes 203, after primary installation is completed, the whole device can be transferred to a furnace through the travelling crane and the lifting hook mechanism 1 to be subjected to heat treatment, and the gas cylinders 3 can introduce carbonitriding atmosphere into the bottom of the furnace. When in use, the pump barrel 4 is a workpiece needing carbonitriding, and is also used for guiding the carbon nitrogen atmosphere in the furnace to rise to a channel of a furnace mouth to a furnace top exhaust port, and waste gas is discharged out of the furnace after harmless combustion, so that the stable and smooth air pressure in the furnace is kept.
In a preferred scheme, a plurality of lifting rings 102 are fixedly arranged above a support ring 101 in the lifting hook mechanism 1, a plurality of lifting hooks 104 are fixedly arranged on the periphery of the lower part, a plurality of lifting lugs 201 are fixedly arranged on the periphery of the hanging scaffold 2, and the lifting hooks 104 are fixed in the lifting lugs 201. From this structure, the lifting hook of driving lifts by crane rings 102, and rethread lifting hook 104 lifts by crane lug 201, can shift the whole hoist to the stove in carry out heat treatment.
In the preferred scheme, a hinged seat 103 is arranged between a lifting hook 104 and a support ring 101, the hinged seat 103 is fixed below the support ring 101, one end of the lifting hook 104 is hinged with the hinged seat 103 through a pin shaft, the other end of the lifting hook is abutted against a lifting lug 201, and a positioning ring 105 is fixedly arranged in the middle of the lifting hook 104. From this structure, lifting hook 104 tip supports and leans on to rotate on articulated seat 103 to can be suitable for not unidimensional platform sling 2, can lift by crane not unidimensional platform sling 2, the installation is dismantled more simple and conveniently.
In a preferable scheme, one end of the air guide cylinder 3 is provided with an air inlet taper opening 301, the other end of the air guide cylinder is provided with an air guide pipe 302, a positioning table 303 is arranged between the air inlet taper opening 301 and the air guide pipe 302, the positioning table 303 abuts against the air guide cylinder mounting hole 203, and the air guide pipe 302 is inserted into the air guide cylinder mounting hole 203. According to the structure, the carbonitriding atmosphere is introduced to the bottom of the furnace through the gas cylinder 3 and is 0.3-0.5 m lower than the bottom surface of the pump cylinder 4, so that the carbonitriding gas generated by the forced fan is forced to flow through the pump cylinder 4 to guide the atmosphere, the carburizing gas flows upwards from the inner hole of the pump cylinder 4, and the purpose of carbonitriding in the pump cylinder 4 deep well furnace is achieved.
In a preferred scheme, sealing inclined planes are arranged on the positioning table 303 and the gas cylinder mounting hole 203, and asbestos is filled in the sealing inclined planes. With this structure, the gap between the asbestos seal positioning table 303 and the gas cylinder mounting hole 203 prevents the carbonitriding gas from leaking, and prevents the atmosphere from moving and forming turbulence.
In the preferred scheme, a hanging head 5 is fixedly arranged at the end part of a pump barrel 4, the hanging head 5 is sleeved at the end part of the pump barrel 4, the hanging head 5 is fixedly connected with the pump barrel 4 through a pin shaft 6, and the hanging head 5 abuts against a pump barrel mounting hole 202;
asbestos is filled in the gap between the pump cylinder 4 and the pump cylinder mounting hole 202. According to the structure, the hanging head 5 is made of low-carbon steel Q235 materials, the pin shaft 6 penetrates through pin holes in the end portions of the hanging head 5 and the pump barrel 4, the hanging head 5 and the pump barrel 4 are connected and fixed, and the hanging head 5 is a quick-wear part and is jacked up for replacement. The diameter of the pump cylinder mounting hole 202 is larger than that of the pump cylinder 4, the hanging head 5 is sleeved at the end part of the pump cylinder 4, the outer diameter of the hanging head 5 is larger than that of the pump cylinder mounting hole 202, the end face of the hanging head 5 can abut against the pump cylinder mounting hole 202, and asbestos filled in a gap between the pump cylinder 4 and the pump cylinder mounting hole 202 avoids gas overflow.
In the preferred scheme, the hanging scaffold 2 is formed by integral precision casting, and the material is ZG40Cr25Ni35 RE. With the structure, the heat-resistant hanging scaffold 2 has enough heat strength, fatigue resistance and high-temperature deformation resistance in the use at the high temperature of more than 900 ℃.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and should not be considered as limitations of the present invention, and the protection scope of the present invention should be defined by the technical solutions described in the claims, and includes equivalent alternatives of technical features in the technical solutions described in the claims. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.
Claims (7)
1. Pump barrel pit furnace high temperature carbonitriding assembled linkage, characterized by: the air cylinder lifting device comprises a lifting platform (2), wherein an air cylinder mounting hole (203) is formed in the middle of the lifting platform (2), a plurality of pump cylinder mounting holes (202) are formed in the periphery of the air cylinder mounting hole (203), an air cylinder (3) is fixedly arranged in the air cylinder mounting hole (203), the end of a pump cylinder (4) is fixed in the pump cylinder mounting hole (202), and a lifting hook mechanism (1) connected with the lifting platform is arranged above the lifting platform (2).
2. The high-temperature carbonitriding fabricated suspension device of a pump barrel shaft furnace as claimed in claim 1, wherein: a plurality of lifting rings (102) are fixedly arranged above a support ring (101) in the lifting hook mechanism (1), a plurality of lifting hooks (104) are fixedly arranged on the periphery of the lower part, a plurality of lifting lugs (201) are fixedly arranged on the periphery of the hanging plate (2), and the lifting hooks (104) are fixed in the lifting lugs (201).
3. The high-temperature carbonitriding assembled suspension device for the pump barrel shaft furnace as claimed in claim 2, wherein: be equipped with articulated seat (103) between lifting hook (104) and lock ring (101), articulated seat (103) are fixed in the below of lock ring (101), and lifting hook (104) one end is articulated through round pin axle and articulated seat (103), and the other end supports and leans on in lug (201), and positioning ring (105) have set firmly in lifting hook (104) middle part.
4. The high-temperature carbonitriding fabricated suspension device of a pump barrel shaft furnace as claimed in claim 1, wherein: one end of the air guide cylinder (3) is provided with an air inlet taper opening (301), the other end of the air guide cylinder is provided with an air guide pipe (302), a positioning table (303) is arranged between the air inlet taper opening (301) and the air guide pipe (302), the positioning table (303) abuts against the air guide cylinder mounting hole (203), and the air guide pipe (302) is inserted into the air guide cylinder mounting hole (203).
5. The high-temperature carbonitriding fabricated suspension device of a pump barrel shaft furnace as claimed in claim 4, wherein: and sealing inclined planes are arranged on the positioning table (303) and the gas cylinder mounting hole (203), and asbestos is filled in the sealing inclined planes.
6. The high-temperature carbonitriding fabricated suspension device of a pump barrel shaft furnace as claimed in claim 1, wherein: a hanging head (5) is fixedly arranged at the end part of the pump barrel (4), the hanging head (5) is sleeved at the end part of the pump barrel (4), the hanging head (5) is fixedly connected with the pump barrel (4) through a pin shaft (6), and the hanging head (5) is abutted against the mounting hole (202) of the pump barrel;
asbestos is filled in a gap between the pump cylinder (4) and the pump cylinder mounting hole (202).
7. The high-temperature carbonitriding fabricated suspension device of a pump barrel shaft furnace as claimed in claim 1, wherein: the hanging scaffold (2) is formed by integral precision casting, and the material is made of heat-resistant material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221260727.XU CN217458466U (en) | 2022-05-25 | 2022-05-25 | Pump cylinder pit furnace high-temperature carbonitriding assembled suspension device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221260727.XU CN217458466U (en) | 2022-05-25 | 2022-05-25 | Pump cylinder pit furnace high-temperature carbonitriding assembled suspension device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217458466U true CN217458466U (en) | 2022-09-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221260727.XU Active CN217458466U (en) | 2022-05-25 | 2022-05-25 | Pump cylinder pit furnace high-temperature carbonitriding assembled suspension device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217458466U (en) |
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2022
- 2022-05-25 CN CN202221260727.XU patent/CN217458466U/en active Active
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