CN201516441U - Mill housing quick opening and fastening device - Google Patents
Mill housing quick opening and fastening device Download PDFInfo
- Publication number
- CN201516441U CN201516441U CN2009202038084U CN200920203808U CN201516441U CN 201516441 U CN201516441 U CN 201516441U CN 2009202038084 U CN2009202038084 U CN 2009202038084U CN 200920203808 U CN200920203808 U CN 200920203808U CN 201516441 U CN201516441 U CN 201516441U
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- side frame
- bar
- transmission side
- fast
- rolling
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Abstract
The present utility model discloses a mill housing quick opening and fastening device comprising a pre-stress pull rod, a transmission side frame, a sleeve barrel, an operation side frame, a quick driving cylinder, a support cover and a supporting stand. The pre-stress pull rod is connected with a pre-stress nut through screw threads, the pre-stress nut is combined on the transmission side frame through a screw bolt, the pre-stress pull rod has a trapezoid groove, and a oblique wedge type clamp board has a grade of slope is a range of 1:10 to 1:50, 1:30 being a best value. The method of the utility model comprises two steps of fastening and opening the operation side frame and the transmission side frame. According to the utility model, a amplifying principle of an inclined surface force is adopted slickly to change two movements of an original clamping disc type oil cylinder locking apparatus into one movement of a quick driving cylinder, 12 clamping disc type oil cylinders are canceled, simplifying structure, saving energy consumption, reducing cost, improving stability of roller milling and reducing accident rate of roller milling.
Description
Technical field
The utility model relates to a kind of omnipotent mm finishing mill unit equipment of modern H shaped steel rolling line, particularly relate to need in milling train or other the similar milling trains fore side frame and transmission side frame separate fast and fastening rolling-mill housing open fast and fastener.
Background technology
At present, represent the large H-shaped steel rolling line of world's advanced technology, have characteristics such as annual production height, wide in variety, production efficiency height, just because of characteristics such as wide in variety and annual production height, just determined to have roller coefficient amount and specification many, roll change requires characteristics such as roll changing time is short often; Omnipotent in addition mm finishing mill unit fore side frame and transmission side frame must be separated when roll change; For satisfy after fast roll changing and the roll change can stable rolling requirement, need a kind of device, this device is lock out operation side and transmission side frame fast, satisfy the requirement of roll change, can after having changed roller, fore side frame and transmission side frame be coupled together fast again, form one, and can bear the requirement of horizontal roll-force, satisfy the condition of rolling stability.
As shown in Figure 6, what open and the fastener of the omnipotent finishing mill unit frame of the present H shaped steel rolling line that uses adopted is the chuck mode structure, and this device partly is made up of reciprocating type chuck oil cylinder, prestressed draw-bar, transmission side frame, sleeve, fore side frame, rectangle clamp, fast driving cylinder and support etc.The operation principle of this device is as follows:
When fore side frame and transmission side frame need at first to assign instruction by control system, and make the action of fast driving cylinder drive the rectangular channel that the rectangle clamp inserts the prestressed draw-bar that is positioned at fore side under the effect of hydraulic valve block when fastening; Next is controlled under the effect of hydraulic valve block and makes reciprocating type chuck oil cylinder left end oil-in oil supply, piston is moved right, piston and prestressed draw-bar connect together by screw thread, prestressed draw-bar also moves right, along with moving right of pull bar, eliminate gradually in the gap of pull bar and rectangle clamp, by prestressed draw-bar and sleeve fore side frame and transmission side frame are tightened together, and along with the continuous increase of oil cylinder working-pressure, pull bar produces predeformation and fore side frame and transmission side frame is fastened as one; The needed operating pressure of reciprocating type chuck mode oil cylinder maximum horizontal roll-force and definite during according to rolling H shaped steel, and require pressurize all the time in the course of the work, otherwise not only do not guarantee rolling accuracy, and may cause the generation of rolling accident.
When fore side frame and transmission side frame need be opened, at first make reciprocating type chuck oil cylinder right-hand member oil-in oil supply, under the effect of chuck oil cylinder, piston is moved to the left, prestressed draw-bar also is moved to the left, discharge the prestressing force of prestressed draw-bar, make fore side frame, transmission side frame, sleeve all be in free state, and make groove and rectangle clamp on the prestressed draw-bar have enough gaps; Next is controlled fast driving cylinder drive rectangle clamp and extracts out in the rectangular channel of prestressed draw-bar, and the fore side frame just can have been separated with the transmission side frame like this.
This device adopts hydraulic pressure dynamically to control, and the reciprocating hydraulic cylinder is arranged, and has to open/fastening fast the advantage of precise control.But shortcoming is:
1, in the operation of rolling, need to continue fuel feeding, and the maintenance operating pressure is 28MPa;
2, complex structure, a milling train has four chucks, and unit is totally three milling trains, needs 12 chucks.
Summary of the invention
For solving the problems referred to above that prior art exists, the utility model will propose a kind of rolling-mill housing and open fast and fastener, solution needs 12 chuck oil cylinders are continued the problem of fuel feeding in the operation of rolling, and reduce hydraulic system load, energy savings consumption, simplified structure, reduce cost, satisfy open fast/improve rolling stability under the fastening prerequisite.
To achieve these goals, the technical solution of the utility model is as follows: a kind of rolling-mill housing is opened fast with fastener and is comprised prestressed draw-bar, transmission side frame, sleeve, fore side frame, fast driving cylinder, support set and support, described prestressed draw-bar is connected with prestressing nut by screw thread, described prestressing nut puts together on the transmission side frame by bolt, and described sleeve two ends cooperate by the face of cylinder and are connected with the transmission side frame with the fore side frame respectively with the end face seam; Described fast driving cylinder is connected with the Wedge type clamp by pin, is connected as a single entity by hinge and support; Described support is connected as a single entity by bolt and fore side frame; Between support, fore side frame and prestressed draw-bar support set is installed, described support set and support, fore side frame and prestressed draw-bar all are connected by the face of cylinder, and prestressed draw-bar can be free to slide along the support set inner surface.
Have dovetail groove on the prestressed draw-bar described in the utility model.
The span of the gradient of Wedge type clamp described in the utility model is 1: 10～1: 50, and its optimum value is 1: 30.
The method of work that a kind of rolling-mill housing is opened fast with fastener may further comprise the steps:
A, when fore side frame and transmission side frame need when fastening, assign instruction by manually-operated or automatic control system, and under the effect of hydraulic valve block, make the fast driving cylinder drive the dovetail groove that the Wedge type clamp inserts the prestressed draw-bar that is positioned at fore side, along with moving down of fast driving cylinder, at first eliminate the gap on prestressed draw-bar dovetail groove inclined-plane and Wedge type clamp inclined-plane, next makes prestressed draw-bar produce distortion, and along with the continuous increase of fast driving cylinder pressure, the fore side frame, transmission side frame and sleeve are compressed and produce strain, fore side frame and transmission side frame tightly are connected as a single entity;
B, when fore side frame and transmission side frame need be opened, assign instruction by manually-operated or automatic control system, and under the effect of hydraulic valve block, make fast driving cylinder counteragent drive the Wedge type clamp to extract out from the dovetail groove of the prestressed draw-bar that is positioned at fore side and get final product.
Compared with prior art, the utlity model has following beneficial effect:
1, because the utility model has utilized the amplification principle of inclined-plane power dexterously, the fast driving cylinder just can produce the bigger fastening force that satisfies rolling requirement with less power.As shown in Figure 4, the amplification principle of inclined-plane power can represent that F is the driving force that oil cylinder produces with formula N=F/ λ, the fastening force of N for producing, and λ is the gradient on inclined-plane, if λ=0.5, then F is scalable one times.
2, because the utility model has utilized the amplification principle of inclined-plane power dexterously, with two actions in the former chuck mode oil cylinder locking device, change an action of fast driving cylinder into, finish frame equally and open fast/fastening purpose, the fast driving cylinder has displacement transducer and pressure sensor, can set frame pretightening power according to the requirement of the horizontal roll-force of rolling H shaped steel equally, play the same effect of chuck mode oil cylinder; The utility model has been cancelled 12 chuck mode oil cylinders, simplifies the structure, and has saved energy resource consumption, has reduced cost, has improved rolling stability, has reduced rolling accident rate;
3, the utility model simplifies the structure, and replaces the chuck mode oil cylinder by the prestressing nut of simple structure, has cancelled the pipe arrangement of giving the chuck mode oil cylinder, has solved also naturally that to continue fuel feeding in the operation of rolling, also will keep operating pressure be the shortcoming of 28MPa;
4, the inclined-plane in the utility model is owing to adopt design near the gradient in the self-locking scope, can remain on the self-locking when rolling, adds the pressurize effect of fast driving cylinder, can realize the two-way safeguarding function in the operation of rolling, improved rolling stability.
5, the utility model is owing to increased a support set in the fore side frame side, and it is a closely fulcrum with the inclined-plane relatively, in fastening and the process of opening, can reduce the flexural deformation of pull bar, the service life of raising prestressed draw-bar.
6, the utility model is estimated to save 62～680,000 yuan of oil cylinder costs, saves 8～8.5 ten thousand yuan of valve group costs, is saved 11～120,000 yuan of accumulator costs, and this does not also consider the expense that reduces the expense of being saved and be used for electrical control of pumping plant ability; Implement direct economic benefit of the present utility model more than 1,000,000 yuan, and simplified control, to the user, can save energy resource consumption, reduce noise, reduce environmental pollution, its social benefit is huge.
Description of drawings
6 in the total accompanying drawing of the utility model, wherein:
Fig. 1 be the utility model rolling-mill housing open structural representation with fastener fast.
Fig. 2 be the utility model rolling-mill housing open A-A profile with fastener fast.
Fig. 3 be the utility model rolling-mill housing open B-B profile with fastener fast.
Fig. 4 be the utility model rolling-mill housing open with fastener fastening fast the time operating position, inclined-plane schematic diagram.
Fig. 5 be the utility model rolling-mill housing open inclined-plane operation principle schematic diagram with fastener fast.
Fig. 6 be existing rolling-mill housing open structural representation with fastener fast.
Among the figure: 1, prestressing nut, 2, prestressed draw-bar, 3, the transmission side frame, 4, sleeve, 5, the fore side frame, 6, the Wedge type clamp, 7, the fast driving cylinder, 8, support set, 9, support.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further.Shown in Fig. 1-5, a kind of rolling-mill housing is opened fast with fastener and is comprised prestressed draw-bar 2, transmission side frame 3, sleeve 4, fore side frame 5, fast driving cylinder 7, support set 8 and support 9, described prestressed draw-bar 2 is connected with prestressing nut 1 by screw thread, described prestressing nut 1 puts together on the transmission side frame 3 by bolt, and described sleeve 4 two ends cooperate by the face of cylinder and are connected with transmission side frame 3 with fore side frame 5 respectively with the end face seam; Described fast driving cylinder 7 is connected with Wedge type clamp 6 by pin, is connected as a single entity by hinge and support 9; Described support 9 is connected as a single entity by bolt and fore side frame 5; Between support 9, fore side frame 5 and prestressed draw-bar 2 support set 8 is installed, described support set 8 all is connected by the face of cylinder with support 9, fore side frame 5 and prestressed draw-bar 2, and prestressed draw-bar 2 can be free to slide along support set 8 inner surfaces.Have dovetail groove on the described prestressed draw-bar 2.The span of the gradient of described Wedge type clamp 6 is 1: 10～1: 50, and its optimum value is 1: 30.
The method of work that a kind of rolling-mill housing is opened fast with fastener may further comprise the steps:
A, when fore side frame 5 and transmission side frame 3 needs when fastening, assign instruction by manually-operated or automatic control system, and under the effect of hydraulic valve block, make fast driving cylinder 7 drive the dovetail groove that Wedge type clamp 6 inserts the prestressed draw-bar 2 that is positioned at fore side, along with moving down of fast driving cylinder 7, at first eliminate the gap on prestressed draw-bar 2 dovetail groove inclined-planes and Wedge type clamp 6 inclined-planes, next makes prestressed draw-bar 2 produce distortion, and along with the continuous increase of fast driving cylinder 7 pressure, fore side frame 5, transmission side frame 3 and sleeve 4 are compressed and produce strain, fore side frame 5 and transmission side frame 3 tightly are connected as a single entity;
B, when fore side frame 5 and transmission side frame 3 need be opened, assign instruction by manually-operated or automatic control system, and under the effect of hydraulic valve block, make fast driving cylinder 7 counteragents drive Wedge type clamp 6 to extract out from the dovetail groove of the prestressed draw-bar 2 that is positioned at fore side and get final product.
Claims (3)
1. a rolling-mill housing is opened fast with fastener and is comprised prestressed draw-bar (2), transmission side frame (3), sleeve (4), fore side frame (5), fast driving cylinder (7), support set (8) and support (9), it is characterized in that: described prestressed draw-bar (2) is connected with prestressing nut (1) by screw thread, described prestressing nut (1) puts together on the transmission side frame (3) by bolt, and described sleeve (4) two ends cooperate by the face of cylinder and are connected with transmission side frame (3) with fore side frame (5) respectively with the end face seam; Described fast driving cylinder (7) is connected with Wedge type clamp (6) by pin, is connected as a single entity by hinge and support (9); Described support (9) is connected as a single entity by bolt and fore side frame (5); Between support (9), fore side frame (5) and prestressed draw-bar (2), support set (8) is installed, described support set (8) all is connected by the face of cylinder with support (9), fore side frame (5) and prestressed draw-bar (2), and prestressed draw-bar (2) can be free to slide along support set (8) inner surface.
2. rolling-mill housing according to claim 1 is opened and fastener fast, it is characterized in that: described prestressed draw-bar has dovetail groove on (2).
3. rolling-mill housing according to claim 1 is opened and fastener fast, it is characterized in that: the span of the gradient of described Wedge type clamp (6) is 1: 10～1: 50, and its optimum value is 1: 30.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202038084U CN201516441U (en) | 2009-09-30 | 2009-09-30 | Mill housing quick opening and fastening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202038084U CN201516441U (en) | 2009-09-30 | 2009-09-30 | Mill housing quick opening and fastening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201516441U true CN201516441U (en) | 2010-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202038084U Expired - Lifetime CN201516441U (en) | 2009-09-30 | 2009-09-30 | Mill housing quick opening and fastening device |
Country Status (1)
| Country | Link |
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| CN (1) | CN201516441U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101690944B (en) * | 2009-09-30 | 2011-06-29 | 大连华锐股份有限公司 | Quick opening and fastening device for rolling mill stand and working method thereof |
-
2009
- 2009-09-30 CN CN2009202038084U patent/CN201516441U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101690944B (en) * | 2009-09-30 | 2011-06-29 | 大连华锐股份有限公司 | Quick opening and fastening device for rolling mill stand and working method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100630 Effective date of abandoning: 20090930 |