CN205999422U - A kind of gland seal Quenching Treatment device - Google Patents
A kind of gland seal Quenching Treatment device Download PDFInfo
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- CN205999422U CN205999422U CN201621031350.5U CN201621031350U CN205999422U CN 205999422 U CN205999422 U CN 205999422U CN 201621031350 U CN201621031350 U CN 201621031350U CN 205999422 U CN205999422 U CN 205999422U
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- suspension rod
- top board
- roll
- treatment device
- quenching treatment
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Abstract
The utility model discloses a kind of gland seal Quenching Treatment device, belongs to Field of Heat-treatment.A kind of gland seal Quenching Treatment device of the present utility model, including baffle plate, lower platen, suspension rod, top board and flatulence circle, the downrod lower end is connected with baffle plate, lower platen is set with suspension rod, suspension rod middle and upper part is provided with external screw thread, top board and flatulence circle are all sleeved on suspension rod, and clamp nut is threadeded with suspension rod.The both sides of described lower platen are all filled with high temperature cotton；In the equal filled high-temperature cotton in the both sides up and down and flatulence circle inner chamber of top board and flatulence circle.The utility model can be sealed to smoothing roll endoporus, be easy to preheat heel row gas disposal, make body of roll center in the hole produce negative pressure, hardening media is cannot be introduced in end face and centre bore, after quenching, body of roll firmness outside is high, and internal toughness is good, effectively avoids the generation of crackle.
Description
Technical field
The utility model is related to technical field of heat treatment, more particularly, it relates to a kind of gland seal is filled with Quenching Treatment
Put.
Background technology
Straightener is the plant equipment for carrying out aligning processing to section bar, bar, and its smoothing roll is critical component.For aligning
For roller, which is relatively large in diameter, and outer surface requires there is higher hardness, and center portion needs to keep preferable toughness, therefore, how to carry out
The heat treatment of smoothing roll, becomes key technology during production and processing.
For current smoothing roll, no matter roll neck size, in order to improve its combination property, needs to carry out integral quenching
Fire.For different materials and the concrete application of smoothing roll, selection water quenching that can be appropriate or oil quenching.For oil quenching, it is unsuitable for table
Surface hardness requires higher smoothing roll；For water quenching, as its cooling is excessively fierce, some materials are easy to open the body of roll
Split.But at present no matter using which kind of integral quenching mode, all there is end face or overall cracking, particularly in grinding rank
Can there is annular crack in section, surface, the crackle is also difficult to eliminate by grinding, can only carry out surface reconditioning.And for cracking relatively
For serious workpiece, directly scrap, cause product percent of pass extremely low.
Entered Exploring Analysis discovery, if preferable performance will be had, smoothing roll endoporus and end face can not carry out direct quenching,
Particularly in endoporus and the junction of end face, once hardening media is touched, concentrated stress will be formed in junction, during the later stage
When effect is processed, it is easy to ftracture.Therefore, problem challenge is how that the endoporus to smoothing roll and end face carry out quenching protection.
Find through retrieval, middle in prior art have related solution, such as number of patent application：ZL
200610106957.X, authorized announcement date：On July 8th, 2009, the patent formula disclose a kind of biliquid of 9Cr2Mo smoothing roll
Quenching process, its fill loess by the gap location in smoothing roll endoporus and frock to prevent hardening media from entering endoporus
Interior, and end face and endoporus are covered with pressing plate, quickly cool down first with water quenching, austenite decomposition is prevented, then again in oil bath
Quenched, reduced quenching distortion, prevented cracking.
This fill other materials to prevent method that medium is entered more having commonly used at present in smoothing roll endoporus, for
Prevent from deforming and ftractureing that there is certain effect.But in tempering, inside stuffing can affect temperature, need before tempering
Filler is removed, tedious process.But if without filler, it is difficult to again be prevented effectively from shadow of the hardening media to quenching effect
Ring, cause manufacturing procedure to contradict with processing effect.
Utility model content
1. utility model technical problem to be solved
The purpose of this utility model is to overcome the shortcomings of in prior art smoothing roll easily there is crackle after quenching,
There is provided a kind of gland seal Quenching Treatment device, the utility model can be sealed to smoothing roll endoporus, be easy to preheating
Heel row gas disposal, makes body of roll center in the hole produce negative pressure, and hardening media is cannot be introduced in end face and centre bore, after quenching outside the body of roll
Portion's hardness is high, and internal toughness is good, effectively avoids the generation of crackle.
2. technical scheme
For reaching above-mentioned purpose, the technical scheme that the utility model is provided is：
A kind of gland seal Quenching Treatment device of the present utility model, including baffle plate, lower platen, suspension rod, top board and
Flatulence circle, the downrod lower end are connected with baffle plate, are set with lower platen on suspension rod, and suspension rod middle and upper part is provided with external screw thread, upper pressure
Plate and flatulence circle are all sleeved on suspension rod, and clamp nut is threadeded with suspension rod.
Further improve as the utility model, the both sides of described lower platen are all filled with high temperature cotton；In upper pressure
The equal filled high-temperature cotton in the both sides up and down and flatulence circle inner chamber of plate and flatulence circle.
Further improve as the utility model, half between the endoporus of top board and the endoporus of lower platen and suspension rod
Footpath difference is 1～5mm.
Further improve as the utility model, the diameter of the lower platen and top board is straight not less than end surface of roll
0.8 times of footpath.
Further improve as the utility model, the side wall of the clamp nut offers bayonet socket, the bayonet socket is along pressure
Jack panel radial symmetric is distributed.
Further improve as the utility model, pull bar or draw ring is provided with the top board, for lifting
Pressing plate is vented.
Further improve as the utility model, the suspension rod upper end is provided with internal thread, for connecting shackle.
3. beneficial effect
The technical scheme provided using the utility model, compared with prior art, is had the advantages that：
(1) the utility model coordinates suspension rod to be sealed using top board and flatulence circle, and pressing plate is prevented from hardening media
End surface of roll and center in the hole is entered into, so as to avoid the hardenability inside the body of roll；When being heated, first preheated, row
Heated after gas again, sealing can be improved further；Because after body of roll center in the hole gas is heated, air pressure increases, after exhaust
Sealed, then when being quenched, centre bore is internally formed negative pressure, make top board and lower platen tightly be attached to body of roll end
Face, hardening media cannot be introduced into, so as to form protection to end surface of roll and centre bore；
(2) the utility model has better seal effect by filled high-temperature cotton in flatulence circle, because conventional seals
Mostly it is directly to be tightened with bolt on pressing plate, and screw thread itself does not have sealing, hardening media is easy to by between screw thread
Gap enter into centre bore, and in the present invention, increased flatulence circle and high temperature cotton, high temperature cotton can fill up thread gaps, so as to
So that hardening media is penetrated into, it is ensured that to have preferable quenching effect；
(3) semidiameter in the utility model between the endoporus of top board and the endoporus of lower platen and suspension rod be 1～
5mm, is conducive to the filling of high temperature cotton；The diameter of lower platen and top board is not less than 0.8 times of end surface of roll diameter, then pressing plate energy
End surface of roll is enough covered, reduces impact of the heat treatment to end face；And sealing effectiveness is more preferably, hardening media is difficult to entrance center
In the hole, reasonable in design, principle are simple, are easy to promote the use of.
Description of the drawings
Fig. 1 is the structural representation of Quenching Treatment device of the present utility model；
Fig. 2 is the structural representation that top board arranges pull bar in the utility model.
Label declaration in schematic diagram：1st, baffle plate；2nd, lower platen；3rd, the body of roll；4th, top board；5th, flatulence circle；6th, high temperature cotton；
7th, clamp nut；8th, bayonet socket；9th, suspension rod.
Specific embodiment
For further appreciating that content of the present utility model, in conjunction with the accompanying drawings and embodiments the utility model is described in detail.
Embodiment 1
In conjunction with Fig. 1, Fig. 2, a kind of gland seal Quenching Treatment device of the present embodiment, including suspension rod 9, lower platen 2, on
Pressing plate 4 and flatulence circle 5,9 lower end of suspension rod are connected with baffle plate 1, are set with lower platen 2 on suspension rod 9, during use, the both sides of lower platen
High temperature cotton 6 is all filled with, for sealing.9 middle and upper part of suspension rod is provided with external screw thread, and top board 4 and flatulence circle 5 are all sleeved on suspension rod
On 9, the body of roll 3 is sleeved on suspension rod 9, and Wei Yu lower platen 2 and top board 4 between, clamp nut 7 is threadeded with suspension rod 9,
3 upper surface of the body of roll is pressed on flatulence circle 5 and top board 4 by clamp nut 7, so as to form sealing, the end face of the body of roll 3 and in
Heart hole is all capped, it is ensured that the end face of smoothing roll and centre bore will not be cooled quenching.In order to improve sealing property, in top board
4 and both sides up and down and the equal filled high-temperature cotton 6 of 5 inner chamber of flatulence circle of flatulence circle 5, i.e., between 3 upper surface of the body of roll and top board 4,
Equal filled high-temperature cotton 6 between top board 4 and flatulence circle 5, between flatulence circle 5 and clamp nut 7, and fill inside flatulence circle 5
High temperature cotton 6.
Mostly common press-loading apparatus are direct fixation clips on body of roll upper surface, then hardening media is easy to by screw thread
Infiltration center in the hole, after filled high-temperature cotton 6, it is ensured that sealing effectiveness.
Further, 9 upper end of suspension rod is provided with internal thread, for connecting shackle.If suspension hook and suspension rod are set to one
Body structure, then can only be set with the body of roll 3 from 9 lower end of suspension rod, is unfavorable for that subsequent exhaust is operated.
Embodiment 2
A kind of gland seal Quenching Treatment device of the present embodiment, its basic structure are same as Example 1, its difference
Place is：It is 1～5mm to control the semidiameter between endoporus, the endoporus of lower platen 2 and the suspension rod 9 of top board 4 in the present embodiment,
Contribute to the sealing filling of high temperature cotton, if gap is excessive, high temperature cotton is difficult to consolidation is filled, and sealing effectiveness is undesirable.This enforcement
It is 2mm to choose semidiameter in example.
Further, the diameter of lower platen 2 and top board 4 is not less than 0.8 times of 3 end face diameter of the body of roll, lower platen 2 and upper
Pressing plate 4 can cover end surface of roll, reduce impact of the heat treatment to end face；And sealing effectiveness is more preferably, hardening media is difficult to
Entrance center in the hole, can form protection to the end face of the body of roll.
Embodiment 3
A kind of gland seal Quenching Treatment device of the present embodiment, its basic structure are same as Example 2, its difference
Place is：In in the present embodiment, the side wall of clamp nut 7 offers bayonet socket 8, and the bayonet socket 8 is distributed along 7 radial symmetric of clamp nut.
After heating to the body of roll 3, workman cannot be close, therefore can block bayonet socket 8 by clamp, so as to rotatably compress nut 7.Additionally,
As shown in Fig. 2 also pull bar or draw ring can be arranged on top board 4, it is vented for lifting top board 4.Also can be turned with other devices
Dynamic top board is exhausted, without specific requirement.
By the Quenching Treatment, the quenching processing technology to smoothing roll is：
1) body of roll 3 is inserted in suspension rod 9, top board 4 and flatulence circle 5 is set in 3 upper end of the body of roll, and is filled out between adjacent two part
High temperature cotton 6 is filled, the two ends of the body of roll 3 is sealed by clamp nut 7；Suspension hook is installed in 9 upper end of suspension rod, the body of roll 3 is put into heating
Stove；
After being inserted in the body of roll 3, first in the populated high temperature cotton in 2 both sides of lower platen, then again in 9 upper end of suspension rod on the body of roll 3
End winds high temperature cotton, top board 4 is being screwed off around high temperature cotton winding direction, is being spread between top board 4 and 3 upper surface of the body of roll
If high temperature cotton；Subsequently flatulence circle 5 is screwed off around high temperature cotton winding direction, high temperature cotton is laid between flatulence circle 5 and top board 4；
Finally clamp nut 7 is screwed in, without high temperature cotton between the external screw thread of clamp nut 7 and suspension rod 9, but in clamp nut 7 and compression
Laying high temperature cotton 6 between nut 7.
2) 580～650 DEG C are warming up to stove, are incubated 1～3 hour；
First it is heated to 580～650 DEG C to the body of roll 3 to preheat, due to the material of the body of roll 3 and of different sizes, therefore temperature
Difference is set, general roll neck is less, heating is faster, and preheating temperature is lower, and temperature retention time is also shorter, and the main purpose of insulation is
Guarantee that centre bore temperature is also sufficiently high, in the hole air in center has pressure because of expansion.
3) body of roll 3 is hung out, unscrews clamp nut 7 and be exhausted, clamp nut 7 is then tightened, the body of roll 3 is hung in heating
Stove continues to be heated to 860～980 DEG C, is incubated 3～5 hours；
Its exhaust process operation is as follows：
A, the body of roll 3 is hung out after, with clamp or other device card card inlets 8, unscrew clamp nut 7；
B, entangle pull bar with steel pipe, slow rotate top board 4, centre bore inner high voltage gas is discharged；
C, screw clamp nut 7 again, then the body of roll 3 is hung in heating furnace and continue heating.
Whole exhaust process control was completed in 10 minutes, it is to avoid 3 excessive drop temperature of the body of roll starts hardening.After the body of roll 3 melts down
Continue to be heated to hardening heat, actual temp can be set according to actual needs.Due in heating and quenching, the body of roll and pressure
The expansion of plate and suspension rod, shrinkage factor are different, be easily caused medium entrance, and the elasticity of itself of flatulence circle 5 can be carried out to deformation
Compensation, so as to ensure whole process central hole in sealing state.
4) after hanging out the body of roll 3, Quenching Treatment is carried out；
The hardness that specifically quenching mode can be according to actual needs is adjusted, specific restriction.In order to reach relatively
Good hardness and toughness, can carry out Quenching Treatment using water, the double modes of quenching of oil.
After Quenching Treatment, 3 firmness outside of the body of roll is reached up to HRC58～65, and middle part hardness is about HRC33～38,
At center bore inner wall, hardness is about HRC23～35, it can be seen that hardness ecto-entad is gradually lowered.Wherein water quenching purpose is mainly carried
High surface hardness, after oil quenching, body of roll inner hardness is also improved.As centre bore is sealed, it is close at kernel of section slow
Cold, preferable toughness can be kept.
5) after quenching, temper is carried out.
When putting into row Quenching Treatment using unskilled labor, although inside is filled with solid filler, but it is difficult to prevent quenching to be situated between
Matter is penetrated under pressing plate or from screw thread, so can touch hardening media more than at centre bore and end contact, and does not have
There is preferably temperature by safeguard measure, cause centre bore and end face junction Cooling Quenching, stress concentration is formed, in tempering also very
Difficulty is eliminated stress, then just causes the body of roll to be easy to crack in this place, or even straight knot cracking.
The utility model carries out Quenching Treatment using Quenching Treatment device, on the one hand, coordinate high temperature cotton to enter using flatulence circle
Row sealing, is thermally deformed to the body of roll and compensates, improve sealing effectiveness；On the other hand, pump-down process, center are carried out in technique
In the hole produces negative pressure, by external pressure come auxiliary seal, is prevented from medium entrance, improves sealing effectiveness further, it is ensured that
The toughness of body of roll center, can effectively prevent stress concentration, it is to avoid smoothing roll ftractures.
Schematically the utility model and embodiments thereof are described above, the description does not have restricted, accompanying drawing
Shown in be also one of embodiment of the present utility model, actual structure is not limited thereto.So, if this area
Those of ordinary skill enlightened by which, in the case of objective is created without departing from the utility model, design without creative
The frame mode similar to the technical scheme and embodiment, all should belong to protection domain of the present utility model.
Claims (7)
1. a kind of gland seal Quenching Treatment device, including baffle plate (1), lower platen (2), suspension rod (9) and top board (4), its
It is characterised by：Also include flatulence circle (5), suspension rod (9) lower end is connected with baffle plate (1), and suspension rod is set with lower platen on (9)
(2), suspension rod (9) middle and upper part is provided with external screw thread, and top board (4) and flatulence circle (5) are all sleeved on suspension rod (9), clamp nut
(7) threaded with suspension rod (9).
2. a kind of gland seal Quenching Treatment device according to claim 1, it is characterised in that：Described lower platen
Both sides are all filled with high temperature cotton (6)；Height is all filled in the both sides up and down and flatulence circle (5) inner chamber of top board (4) and flatulence circle (5)
Warm cotton (6).
3. a kind of gland seal Quenching Treatment device according to claim 2, it is characterised in that：Top board (4) interior
Semidiameter between the endoporus and suspension rod (9) of hole and lower platen (2) is 1～5mm.
4. a kind of gland seal Quenching Treatment device according to claim 1, it is characterised in that：Lower platen (2)
It is not less than 0.8 times of the body of roll (3) end face diameter with the diameter of top board (4).
5. a kind of gland seal Quenching Treatment device according to any one of Claims 1 to 4, it is characterised in that：Institute
The side wall for stating clamp nut (7) offers bayonet socket (8), and the bayonet socket (8) is distributed along clamp nut (7) radial symmetric.
6. a kind of gland seal Quenching Treatment device according to any one of Claims 1 to 4, it is characterised in that：Institute
State on top board (4) and pull bar or draw ring is provided with, for lifting top board (4) exhaust.
7. a kind of gland seal Quenching Treatment device according to any one of Claims 1 to 4, it is characterised in that：Institute
State suspension rod (9) upper end and internal thread is provided with, for connecting shackle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621031350.5U CN205999422U (en) | 2016-08-31 | 2016-08-31 | A kind of gland seal Quenching Treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621031350.5U CN205999422U (en) | 2016-08-31 | 2016-08-31 | A kind of gland seal Quenching Treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205999422U true CN205999422U (en) | 2017-03-08 |
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ID=58194053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621031350.5U Expired - Fee Related CN205999422U (en) | 2016-08-31 | 2016-08-31 | A kind of gland seal Quenching Treatment device |
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| CN (1) | CN205999422U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107805697A (en) * | 2017-12-26 | 2018-03-16 | 瓦房店轴承集团有限责任公司 | Bearing channel quenching oil hole plug frock |
| CN112251590A (en) * | 2020-10-16 | 2021-01-22 | 河南柴油机重工有限责任公司 | Tool for preventing crankshaft connecting rod shaft neck lightening hole medium frequency quenching cracks and using method |
| CN114032367A (en) * | 2021-11-11 | 2022-02-11 | 中冶陕压重工设备有限公司 | Double-liquid quenching heat treatment method for CrWMn spinning core mold |
-
2016
- 2016-08-31 CN CN201621031350.5U patent/CN205999422U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107805697A (en) * | 2017-12-26 | 2018-03-16 | 瓦房店轴承集团有限责任公司 | Bearing channel quenching oil hole plug frock |
| CN112251590A (en) * | 2020-10-16 | 2021-01-22 | 河南柴油机重工有限责任公司 | Tool for preventing crankshaft connecting rod shaft neck lightening hole medium frequency quenching cracks and using method |
| CN114032367A (en) * | 2021-11-11 | 2022-02-11 | 中冶陕压重工设备有限公司 | Double-liquid quenching heat treatment method for CrWMn spinning core mold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170308 Termination date: 20180831 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |