CN203235754U - Lifting device of main mill stand - Google Patents
Lifting device of main mill stand Download PDFInfo
- Publication number
- CN203235754U CN203235754U CN 201320269703 CN201320269703U CN203235754U CN 203235754 U CN203235754 U CN 203235754U CN 201320269703 CN201320269703 CN 201320269703 CN 201320269703 U CN201320269703 U CN 201320269703U CN 203235754 U CN203235754 U CN 203235754U
- Authority
- CN
- China
- Prior art keywords
- skewback
- screw
- handed
- nuts
- leading screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model discloses a lifting device of a main mill stand, and relates to a seamless steel tube production device. The lifting device of the main mill stand solves the problem that a traditional device stand is poor in lifting stability. The lifting device is characterized by comprising slant blocks with right-screwing nuts and slant blocks with left-screwing nuts. Two right-screwing nuts are installed inside each slant block with the right-screwing nuts. Two left-screwing nuts are installed inside each slant block with the left-screwing nuts. One nut of each slant block is contacted with the working face of a lead screw when advancing, and the other nut of each slant block is contacted with the working face of the lead screw when withdrawing. The lifting device of the main mill stand can be widely used in places, where the layout is compact and the milling center line of a main mill is required to be changed, of workshops, and has the advantages of being good in lifting stability of the main mill main stand.
Description
Technical field
The utility model relates to seamless steel pipe production, the adjustment equipment that carries out the main engine bed lifting when particularly the main mill center line changes.
Technical background
In the seamless steel tube production workshop of integral arrangement compactness, need the rolling centerline of tube rolling main equipment to adjust according to different production kinds.For satisfying this requirement, usually the main mill support is designed to Liftable type.
Traditional main mill baseplate hoisting device is shown in accompanying drawing 1,2, mainly by a reducing motor 1, a cover sprocket wheel chain gearing 2, two rhizoid thick sticks 3, two right handed nuts 4) four skewbacks 5, two left-handed screws 6, a base 7, four locked hydraulic cylinders 8 form.Wherein sprocket chain device 2 is comprised of a drive sprocket, two chains, two passive sprocket wheels again.Drive sprocket in the sprocket chain device 2 directly is connected on the output shaft of reducing motor 1, and two are direct-connected with two rhizoid thick sticks 3 respectively by movable sprocket, drive sprocket with linked to each other respectively by two chains between the movable sprocket.Two right handed nuts 4 and two left-handed screws 6 are separately fixed at four skewback 5 inside by bolt, consist of two with skewback and two skewbacks with left-handed screw 6 of right handed nuts 4.The screw thread at two rhizoid thick sticks, 3 two is respectively left and right and revolves, and according to left-right rotary relation four skewbacks with screw is assemblied on the two rhizoid thick sticks, and adjusts the skewback position, and these four skewbacks are contacted simultaneously with four skewbacks on the main engine bed 9.
When the main mill support needed lifting, locked hydraulic cylinder 8 unclamped, and is in free state, reducing motor 1 work, and the drive sprocket that drives in the sprocket chain device 2 rotates, and drive sprocket drives two rhizoid thick sticks 3 and rotates synchronously by chain, by movable sprocket.The rotation of two rhizoid thick sticks 3 drives again four skewbacks 5 with left and right sides screw advances simultaneously or retreats, and forms the principle of wedges with four skewbacks on the main engine bed, thereby finishes the lifting of main engine bed.After lift adjustment is finished, by locked hydraulic cylinder 8 main engine bed 9 and base 7 are locked together.
Traditional main mill baseplate hoisting device, in the lift adjustment process, the skewback of leading screw rotating drive band screw moves back and forth, because the thread pitch between leading screw and screw causes four skewbacks after moving back and forth several times, asynchrony phenomenon will occur.This phenomenon is more obvious for the product of large specification, and main mill support generation small skew so not only has abnormal voice in the lifting process when serious, also can affect product quality.
The utility model content
The purpose of this utility model is to overcome the shortcoming of prior art, and a kind of lowering or hoisting gear of main mill support is provided, and solves traditional device because thread pitch is asynchronous after skewback is moved back and forth, and causes the technical problem of support lifting poor stability.
The utility model is achieved through the following technical solutions:
A kind of lowering or hoisting gear of main mill support, comprise: reducing motor, the sprocket wheel chain gearing, leading screw, right handed nuts, skewback, left-handed screw, base, locked hydraulic cylinder, the drive sprocket of described sprocket chain device directly is connected with the output shaft of reducing motor, two direct-connected with two described leading screws respectively by movable sprocket, drive sprocket with linked to each other respectively by two chains between the movable sprocket, it is inner that described right handed nuts and described left-handed screw are separately fixed at four described skewbacks, consist of with the skewback of right handed nuts with the skewback of left-handed screw, it is left that the screw thread at two described leading screw two is respectively, dextrorotation, with the skewback that assembles on the leading screw of left hand thread with left-handed screw, with the skewback that assembles on the leading screw of right-handed thread with right handed nuts, and adjust the skewback position, four described skewbacks are contacted simultaneously with four skewbacks on the main engine bed, and described locked hydraulic cylinder can be locked together main engine bed and base; It is characterized in that: described skewback with right handed nuts is that two right handed nuts are installed in skewback, contacts with the working face of leading screw when a described right handed nuts is advanced, and contacts with the working face of leading screw when another described right handed nuts retreats; Described skewback with left-handed screw is that two left-handed screws are installed in skewback, contacts with the working face of leading screw when a described left-handed screw advances, and contacts with the working face of leading screw when another described left-handed screw retreats.
The utility model compared with prior art because skewback is made the structure that can lay two screws, increases by a cocainine female simultaneously, and namely each skewback is driven by an original screw, changes into driven by two screws, and two screws are all left-handed or are all dextrorotation.The special construction that utilizes a skewback to be driven by two screws, when equipment adjustment, drive the working face difference that screw advances or retreats according to leading screw, when being advanced, the screw of two screw furnishings on the same skewback contacts with the working face of leading screw, when retreating, another screw contacts with the working face of leading screw, like this in the process that leading screw rotates, the screw that is fixed together with skewback has close contact with leading screw all the time, namely no matter skewback advances or retreats, be not subjected to the impact of thread pitch, the fine synchronism that guarantees skewback.The utility model can be widely used in the workshop characteristics of compact layout, and the place that needs the main mill rolling centerline to change has advantages of main mill main engine bed lifting good stability.
Description of drawings
Fig. 1 is the structural representation (front view) of existing elevating adjusting device;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is structural representation of the present utility model (front view);
Fig. 4 is the top view of Fig. 3.
The utility model is further described by preferred embodiment below in conjunction with accompanying drawing.
The specific embodiment
Such as Fig. 3, shown in 4, a kind of lowering or hoisting gear of main mill support, comprise: reducing motor 1, sprocket wheel chain gearing 2, leading screw 3, right handed nuts 4, skewback 5, left-handed screw 6, base 7, locked hydraulic cylinder 8, the drive sprocket of described sprocket chain device 2 directly is connected with the output shaft of reducing motor 1, two are connected with two described leading screws 3 respectively by movable sprocket, drive sprocket with linked to each other respectively by two chains between the movable sprocket, described right handed nuts 4 and described left-handed screw 6 are separately fixed at four described skewback 5 inside, consist of with the skewback 5-1 of right handed nuts 4 with the skewback 5-2 of left-handed screw 6, it is left that the screw thread at two described leading screw 3 two is respectively, dextrorotation, with the skewback 5-2 of the upper assembling of the leading screw 3-2 of left hand thread with left-handed screw 6, with the skewback 5-1 of the upper assembling of the leading screw 3-1 of right-handed thread with right handed nuts 4, and adjust the skewback position, four described skewbacks 5 are contacted simultaneously with four skewbacks on the main engine bed 9, and described locked hydraulic cylinder 8 can be locked together main engine bed 9 and base 7; Described skewback 5-1 with right handed nuts 4 installs two right handed nuts 4-1 in skewback, contact with the working face of leading screw when a described right handed nuts is advanced, and contacts with the working face of leading screw when another described right handed nuts retreats; Described skewback 5-2 with left-handed screw 6 installs two left-handed screw 6-1 in skewback, contact with the working face of leading screw when a described left-handed screw advances, and contacts with the working face of leading screw when another described left-handed screw retreats.
The utility model is made skewback the structure that can lay two screws, and namely each skewback is driven by an original screw, changes into driven by two screws, and two screws are all left-handed or are all dextrorotation.Drive the working face difference that screw advances or retreats according to leading screw, when the screw of two screw furnishings on the same skewback is advanced stressed (contacting with the working face of leading screw), stressed when another screw retreats (contacting with the working face of leading screw), like this, in the process that leading screw rotates, the screw that is fixed together with skewback have all the time one with the leading screw close contact, namely no matter skewback advances or retreats, be not subjected to the impact of thread pitch, guarantee the synchronism of skewback.After finishing, adjustment by locked hydraulic cylinder 8 main engine bed 9 and base 7 are locked together.
Claims (1)
1. the lowering or hoisting gear of a main mill support, comprise: reducing motor (1), sprocket wheel chain gearing (2), leading screw (3), right handed nuts (4), skewback (5), left-handed screw (6), base (7), locked hydraulic cylinder (8), the drive sprocket of described sprocket chain device (2) directly is connected with the output shaft of reducing motor (1), two direct-connected with two described leading screws (3) respectively by movable sprocket, drive sprocket with linked to each other respectively by two chains between the movable sprocket, described right handed nuts (4) and described left-handed screw (6) are separately fixed at four described skewbacks (5) inside, consist of the skewback (5-1) of band right handed nuts (4) and with the skewback (5-2) of left-handed screw (6), it is left that the screw thread at two described leading screws (3) two is respectively, dextrorotation, with the skewback (5-2) of the upper assembling of the leading screw (3-2) of left hand thread with left-handed screw (6), be with the skewback (5-1) of right handed nuts (4) with the upper assembling of the leading screw (3-1) of right-handed thread, and adjust the skewback position, four described skewbacks (5) are contacted simultaneously with four skewbacks on the main engine bed (9), and described locked hydraulic cylinder (8) can be locked together main engine bed (9) and base (7); It is characterized in that: the skewback (5-1) of described band right handed nuts (4) is that two right handed nuts (4-1) are installed in skewback, contact with the working face of leading screw when a described right handed nuts is advanced, contact with the working face of leading screw when another described right handed nuts retreats; Described skewback with left-handed screw (6) (5-2) is that two left-handed screws (6-1) are installed in skewback, contacts with the working face of leading screw when a described left-handed screw advances, and contacts with the working face of leading screw when another described left-handed screw retreats.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320269703 CN203235754U (en) | 2013-05-17 | 2013-05-17 | Lifting device of main mill stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320269703 CN203235754U (en) | 2013-05-17 | 2013-05-17 | Lifting device of main mill stand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203235754U true CN203235754U (en) | 2013-10-16 |
Family
ID=49313088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320269703 Expired - Lifetime CN203235754U (en) | 2013-05-17 | 2013-05-17 | Lifting device of main mill stand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203235754U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105628713A (en) * | 2016-03-10 | 2016-06-01 | 吉林大学 | Horizontal intelligent detection and repair machine for screen printing templates |
| CN108678857A (en) * | 2018-03-28 | 2018-10-19 | 刘旭玲 | A kind of generating set easy to remove |
| CN109909301A (en) * | 2019-03-08 | 2019-06-21 | 贺云坤 | Indentation roll mill and the method for making thread metal using indentation roll mill |
| CN113877988A (en) * | 2021-10-14 | 2022-01-04 | 中冶南方工程技术有限公司 | Roll bending adjusting device of straightening machine |
-
2013
- 2013-05-17 CN CN 201320269703 patent/CN203235754U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105628713A (en) * | 2016-03-10 | 2016-06-01 | 吉林大学 | Horizontal intelligent detection and repair machine for screen printing templates |
| CN108678857A (en) * | 2018-03-28 | 2018-10-19 | 刘旭玲 | A kind of generating set easy to remove |
| CN109909301A (en) * | 2019-03-08 | 2019-06-21 | 贺云坤 | Indentation roll mill and the method for making thread metal using indentation roll mill |
| CN113877988A (en) * | 2021-10-14 | 2022-01-04 | 中冶南方工程技术有限公司 | Roll bending adjusting device of straightening machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203235754U (en) | Lifting device of main mill stand | |
| CN208543003U (en) | A kind of Steel pipe fixed length cutter device | |
| CN103624294B (en) | A kind of radial drilling machine | |
| CN204381075U (en) | Pinch roll apparatus | |
| CN203541658U (en) | Rectangular spline shaft machining jig | |
| CN108543976B (en) | Drilling machine facilitating punching of mounting surface on three-way valve | |
| CN204171763U (en) | A kind of machining center cutter-exchange mechanism | |
| CN101439352A (en) | Device for hoisting and lowering main engine base of sizing mill with three machine frames | |
| CN204711713U (en) | A kind of longitudinal bearing inner cylinder face grinding machine | |
| CN219030629U (en) | Steel billet conveying roller way protection device | |
| CN203702720U (en) | Rotating mechanism | |
| CN203599599U (en) | Single-sided double-faced chamfering machine device for steel plate | |
| CN204842291U (en) | Online cleaning device of wheel | |
| CN110666057A (en) | Rotary feeding device for plate rolling machine | |
| CN103537744B (en) | The monolateral Double-side rounding machine of steel plate | |
| CN208019304U (en) | A kind of hydraulic press hole punching positioning device | |
| CN203764708U (en) | Three-roller section bending machine for large-size sections | |
| CN203206666U (en) | A fully-electric pedestal apparatus of a horizontal wire jumper plug-in machine | |
| CN105465346B (en) | Gear-box with shifter | |
| CN203875401U (en) | Large-angle adjusting mechanism for milling head of steel plate bilateral milling machine | |
| CN205042925U (en) | Change hub formula straightening machine angle adjusting device | |
| CN207431802U (en) | A kind of crank milling hydraulically operated fixture | |
| CN203599295U (en) | Full-variable-pitch straightener lifting device | |
| CN103819081B (en) | Cutter assembly under glass cutting machine | |
| CN202255874U (en) | Speed reducer test bed |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131016 |