CN207806184U - A kind of steel pipe stretch-reducing mill rigidity evaluated off-line device - Google Patents
A kind of steel pipe stretch-reducing mill rigidity evaluated off-line device Download PDFInfo
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- CN207806184U CN207806184U CN201820004731.7U CN201820004731U CN207806184U CN 207806184 U CN207806184 U CN 207806184U CN 201820004731 U CN201820004731 U CN 201820004731U CN 207806184 U CN207806184 U CN 207806184U
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- reducing mill
- stretch
- steel pipe
- dynamometer link
- horizontal
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Abstract
A kind of steel pipe stretch-reducing mill rigidity evaluated off-line device, belongs to steel pipe stretch-reducing mill field of measuring technique.Including hydraulic cylinder, ring flange, flexible apparatus, copper ball ring, horizontal dynamometer link, upper positioning beam, upper mounted plate, displacement sensor fixed frame, fixed rack, radial force sensor, power cushion block, axial force transducer shell, left and right positioning beam.After each component assembling positioning, the piston rod of hydraulic cylinder pushes ring flange, copper ball ring and horizontal dynamometer link to enter in tension reducing mill, by the way that three rolls in tension reducing mill are strutted with tapered power cushion block, to obtain simulating the displacement of the roller tension reducing mill in the case where rolling force effect, power and displacement signal are acquired in real time by computer data, record stores and exports display.The arrangement achieves the functions of off-line measurement stretch-reducing mill rigidity, and high certainty of measurement, service life is long, while can change power cushion block size according to differential tension reducing mill pass size, have wide applicability.
Description
Technical field
The utility model is related to steel pipe stretch-reducing mill stiffness measurement fields, subtract especially with offline means evaluation tension
Diameter machine rigidity.
Background technology
Last one of Plastic Forming process that stretch-reducing mill is produced as seamless hot-finished steel tube, to what is delivered goods with rolled
Seamless steel pipe shape and size precision plays an important role.Stretch reducing process not only determines the outer-diameter accuracy of steel pipe, but also right
The wall thickness of pipe also important.In addition, the inner and outer surfaces defect of steel pipe is mainly derived from stretch reducing process.As
This process main equipment tension reducing mill, assembly, processing quality and abrasion influence the quality of rolled steel tube very big.By
Which variation is the rigidity of use for many years, every stretch-reducing mill have occurred, and there is presently no methods not to have more with quantitatively characterizing
There is criterion.It is therefore desirable to grasp true equipment state, provide safeguard for quality, the organization of production of tube product.
Utility model content
The utility model provides a kind of device of off-line measurement stretch-reducing mill rigidity regarding to the issue above, can be accurate
State when stretch-reducing mill work is characterized, quantitative assessment is made to the rigidity of stretch-reducing mill.
It is commented to solve the above problems, the utility model is achieved through the following technical solutions the offline of stretch-reducing mill rigidity
Valence：It is passed including hydraulic cylinder, ring flange, flexible apparatus, copper ball ring, horizontal dynamometer link, upper positioning beam, upper mounted plate, displacement
Sensor fixed frame, fixed rack, radial force sensor, power cushion block, axial force transducer shell, left and right positioning beam and tension subtract
Diameter machine sequence is connected, wherein foot Fixed-hydraulic cylinder is connected with ring flange, and ring flange front end connects with copper ball ring bottom surface
It touches, copper ball ring spherical surface is contacted with horizontal dynamometer link, and by flexible apparatus mounting flange and horizontal dynamometer link, and level is surveyed
Power bar carries axial force transducer, and band is installed in front end equipped with the radial force sensor for being mutually 120 degree, radial force sensor top
Tapered power cushion block, stretch-reducing mill are placed on fixed rack, are positioned by installing positioning beam, upper mounted plate and left and right
Beam positions fixed stretch-reducing mill, and fixed rack installs the displacement sensor fixed frame corresponding with roll location.
The left end of the ring flange has threaded hole, and locking screw hole, is threadedly coupled with hydraulic cylinder piston rod, and right end is
The extruding spring of the disk in strap bolt hole, flexible apparatus is recessed with circle on the outside of the left side of disk, the right end disk of ring flange
Slot installs copper ball ring.
The horizontal dynamometer link left end disk side is sensed with bolt hole, spherical groove, horizontal dynamometer link with axial force
The elastomer of device, for arranging resistance strain gage, shell is installed in elastomer outer ring, and as the fixed seat of outlet aviation plug,
The position of horizontal dynamometer link right end is set there are three being mutually 120 degree of radial force sensor mounting hole, axis at horizontal dynamometer link center
To equipped with extraction line three-way hole.Radial force sensor elastomer is with placement and takes out threaded hole and signal wire fairlead.
The stretch-reducing mill fixed rack is formed, postwelding is adopted according to stretch-reducing mill structure size using thick plates
With annealing destressing processing, fixed rack positions fixed form using three direction walking beams, and correction is adjusted using left and right bolt
The position of power reducing mill rack；Displacement sensor fixed frame is housed on fixed rack, displacement corresponding with roll location can be installed
Sensor.
The tapered power cushion block of the band, which is mounted on, is mutually 120 degree of radial force sensor upper surface, and can be according to tension
The different shaped jet holes of reducing mill are processed into different sizes.
The flexible apparatus is that bolt passes through the combination for squeezing spring, mounting flange, copper ball ring and horizontal dynamometry
Bar.The stress size for squeezing spring is adjusted by adjusting bolt and nut, make when tolerable injury level dynamometer link stress it is corresponding it is small from
Adapt to adjustment.
Utility model device realizes the function of off-line measurement stretch-reducing mill rigidity, can accurately grasp tension and subtract
The rigidity situation of three rolls in diameter machine rack, to instructing the milling train of stretch reducing unit to form and improve tube product quality
Play an important roll, and power cushion block size can be changed according to differential tension reducing mill pass, has larger generally applicable
Property.
Description of the drawings
Fig. 1 be the utility model steel pipe stretch-reducing mill rigidity evaluated off-line device in ring flange structural schematic diagram,
Abbreviation ring flange；
Fig. 2 is the installation diagram of flexible apparatus in the present apparatus, abbreviation flexible apparatus；
Fig. 3 is copper ball ring in the present apparatus；
Fig. 4 is the structural schematic diagram of horizontal dynamometer link in the present apparatus, referred to as horizontal dynamometer link；
Fig. 5 is the structural schematic diagram of stretch-reducing mill fixed rack in the present apparatus, abbreviation fixed rack；
Fig. 6 is the elastomer structure schematic diagram of radial force sensor in the present apparatus, abbreviation radial force sensor elastomer；
Fig. 7 is the power cushion block schematic diagram with radial force sensor and roll contact, abbreviation power cushion block in the present apparatus；
Fig. 8 is horizontal dynamometer link axial force elastomer shell schematic diagram in the present apparatus, abbreviation shell；
Fig. 9 is stretch-reducing mill stiffness estimation device overall assembling figure in the present apparatus.
Specific implementation mode
In order to make the technical problems, technical solutions and advantages to be solved by the utility model clearer, below in conjunction with attached drawing
And specific implementation is described in detail.
The utility model provides a kind of steel pipe stretch-reducing mill rigidity evaluated off-line device.The device include hydraulic cylinder (1),
Ring flange (2), flexible apparatus (3), copper ball ring (4), horizontal dynamometer link (5), upper positioning beam (6), upper mounted plate (7), position
Displacement sensor fixed frame (8), fixed rack (9), radial force sensor (10), power cushion block (11), axial force transducer shell
(12), left and right positioning beam (13) and stretch-reducing mill (14) sequence are connected, wherein foot Fixed-hydraulic cylinder (1) and flange
Disk (2) is connected, and ring flange (2) front end is contacted with copper ball ring (4) bottom surface, copper ball ring (4) spherical surface and horizontal dynamometry
Bar (5) contacts, and by flexible apparatus (3) mounting flange (2) and horizontal dynamometer link (5), with filling on horizontal dynamometer link (5)
There is axial force transducer (5-3) and equipped with the radial force sensor (10) for being mutually 120 degree, the installation of radial force sensor (10) top
With tapered power cushion block (11), stretch-reducing mill is placed on fixed rack (9), fixed rack (9) installation and roll location
Corresponding displacement sensor fixed frame (8).
Shown in Fig. 1, stretch-reducing mill stiffness estimation device, the threaded hole (2-1) of ring flange, with foot fixed hydraulic
The piston rod thread of cylinder connects, and right end is the disk of 6 bolts hole (2-4) of band.The extruding spring of 6 sets of flexible apparatus (3) is in circle
Copper ball ring is installed with fluted on the right side of disk in the left side of disk.
Shown in Fig. 2, stretch-reducing mill stiffness estimation device, 6 sets of flexible apparatus (3) are used for mounting flange) it 2 and horizontal surveys
Power bar (5) makes horizontal dynamometer link when entering Grooves of Stretch Reducing Mill wherein squeezing spring and copper ball ring (4), can be right
Different size of power suffered by three directions plays adaptive corrective action, ensures measurement accuracy when detection and reduces horizontal dynamometry
The additional force of bar.
Shown in Fig. 3, stretch-reducing mill stiffness estimation device is copper ball ring (4), is plane on one side, is spherical on one side
Face.
Shown in Fig. 4, stretch-reducing mill stiffness estimation device, spherical groove (5-2) and the copper ball ring of horizontal dynamometer link
(4) it contacts, horizontal dynamometer link is made to make adaptive rotation adjustment by flexible apparatus connection on ball ring；Axial force transducer
(5-3) is used for detecting the horizontal thrust of hydraulic cylinder application；120 degree of radial force sensor (10) is mutually to be used for detecting strutting tension
The radial load of three rolls of reducing mill, value are used for calculating the rigidity of stretch-reducing mill all directions.
Shown in Fig. 5, stretch-reducing mill stiffness estimation device, fixed rack is formed using thick plates, and hydraulic cylinder (1) uses spiral shell
Bolt is fixed on foot pedestal (9-1)；After stretch-reducing mill is packed into fixed rack, installation left and right positioning beam is in positioning beam pedestal (9-
2), on (9-3), position of the adjustment stretch-reducing mill in fixed rack makes the pass center of stretch-reducing mill and horizontal dynamometry
Bar is to just, adjusting positioning and locking stretch-reducing mill；Vertical rib plate (9-5) is primarily subjected to stretch-reducing mill stress in the horizontal direction,
Reinforcing supporting role is played, fixed rack rigidity is increased, ensures measurement result precision.It is solid that there are displacement sensors on fixed rack
Determine the installation site of frame (8).
Shown in Fig. 6, stretch-reducing mill stiffness estimation device, radial load elastomer is pasted on the periphery elastomer (10-1) and is answered
Become piece, organizes bridge output signal；Pass through threading hole (10-3) extraction wire；It is threaded hole (10-2) for facilitating placement.
Shown in Fig. 7, under the action of horizontal force, stretch-reducing mill can be strutted by the power cushion block (11) of different tapers
Three rolls, size can design according to the size of Grooves of Stretch Reducing Mill.
Shown in Fig. 8, stretch-reducing mill stiffness estimation device, horizontal dynamometer link axial force elastomer shell (12), for protecting
Axial force elastomer is protected, horizontal force snesor is constituted, can simultaneously serve as the firm banking of the aviation plug of output signal.
Shown in Fig. 9, stretch-reducing mill stiffness estimation device hangs in stretch-reducing mill (14) on fixed rack, and handle
Upper positioning beam (6), positioning beam pressing plate (7) are placed above power reducing mill, in stretch-reducing mill (14) left and right side stationary positioned beam
(13) to adjust positioning stretch-reducing mill, installation is with tapered power cushion block (11), each portion above radial force sensor (10)
After part assembly installation connection, the piston rod of hydraulic cylinder (1) pushes, and water is pushed by ring flange (2) and flexible apparatus (3) connection
Flat dynamometer link (5) enters in tension reducing mill, by with tapered power cushion block (11) by three in tension reducing mill
Roll struts, and obtains the high low signal output of radial load；Three rolls of alignment install fixed displacement sensor output displacement letter
Number, to obtain simulating the displacement of the roller tension reducing mill in the case where rolling force effect, power and displacement signal are passed through into computer
Data real-time collecting system, record store and export display.
The above is preferred embodiments of the present invention, it is noted that for the ordinary skill of the art
For personnel, under the premise of not departing from principle described in the utility model, several improvements and modifications can also be made, these improvement
The scope of protection of the utility model is also should be regarded as with retouching.
Claims (5)
1. a kind of steel pipe stretch-reducing mill rigidity evaluated off-line device, it is characterised in that：Including hydraulic cylinder (1), ring flange (2),
Flexible apparatus (3), copper ball ring (4), horizontal dynamometer link (5), upper positioning beam (6), upper mounted plate (7), displacement sensor are solid
Determine frame (8), fixed rack (9), radial force sensor (10), power cushion block (11), axial force transducer shell (12), left and right positioning
Beam (13)；Hydraulic cylinder (1) is connected with ring flange (2), and ring flange (2) front end is contacted with copper ball ring (4) bottom surface, copper ball
Face pad (4) spherical surface is contacted with horizontal dynamometer link (5), and by flexible apparatus (3) mounting flange (2) and horizontal dynamometer link (5),
Horizontal dynamometer link (5) carries axial force transducer, and front end is passed equipped with the radial force sensor (10) for being mutually 120 degree, radial load
Tapered power cushion block (11) is installed above sensor, it is fixed by installing after stretch-reducing mill (14) is placed on fixed rack (9)
Position beam (6), upper mounted plate (7) and left and right positioning beam (13) position fixed stretch-reducing mill (14), and fixed rack is installed on (9)
There is displacement sensor fixed frame (8), displacement sensor can be installed.
2. steel pipe stretch-reducing mill rigidity evaluated off-line device according to claim 1, it is characterised in that：The ring flange
Left end have threaded hole (2-1), and locking screw hole (2-2), be used for locked hydraulic cylinder (1) piston rod, the right end of ring flange
Circular groove (2-3) is carried on the outside of disk, for installing copper ball ring (4), disk strap bolt hole (2-4).
3. steel pipe stretch-reducing mill rigidity evaluated off-line device according to claim 1, it is characterised in that：The flexible dress
It is that bolt passes through the combination for squeezing spring, mounting flange (2), copper ball ring (4) and horizontal dynamometer link (5) to set (3).
4. steel pipe stretch-reducing mill rigidity evaluated off-line device according to claim 1, it is characterised in that：The horizontal survey
Power bar left end disk side carries axial force transducer elastomer (5-3), axis with bolt hole (5-1), spherical groove (5-2)
Arrange that resistance strain gage, the outer ring axial force transducer elastomer (5-3) install shell on force snesor elastomer (5-3)
(12), fixed seat of the shell as outlet aviation plug, the position of horizontal dynamometer link right end set that there are three the radial directions for being mutually 120 degree
Force snesor mounting hole (5-4) is axially arranged at horizontal dynamometer link center and draws line three-way hole (5-5)；Radial force sensor (10)
Elastomer (10-1) is with placement and takes out threaded hole (10-2) and signal wire fairlead (10-3).
5. steel pipe stretch-reducing mill rigidity evaluated off-line device according to claim 1, it is characterised in that：The fixed station
Frame is formed using thick plates, and foot pedestal (9-1) is for placing hydraulic cylinder (1)；It is solid that there are displacement sensors on fixed rack
Determine the installation site of frame (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820004731.7U CN207806184U (en) | 2018-01-03 | 2018-01-03 | A kind of steel pipe stretch-reducing mill rigidity evaluated off-line device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820004731.7U CN207806184U (en) | 2018-01-03 | 2018-01-03 | A kind of steel pipe stretch-reducing mill rigidity evaluated off-line device |
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| CN207806184U true CN207806184U (en) | 2018-09-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108237149A (en) * | 2018-01-03 | 2018-07-03 | 北京科技大学 | A kind of steel pipe stretch-reducing mill rigidity evaluated off-line device |
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2018
- 2018-01-03 CN CN201820004731.7U patent/CN207806184U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108237149A (en) * | 2018-01-03 | 2018-07-03 | 北京科技大学 | A kind of steel pipe stretch-reducing mill rigidity evaluated off-line device |
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