CN202270717U - Auxiliary device for replacing pull rod of shaft head bearing of rolling mill - Google Patents
Auxiliary device for replacing pull rod of shaft head bearing of rolling mill Download PDFInfo
- Publication number
- CN202270717U CN202270717U CN2011204236621U CN201120423662U CN202270717U CN 202270717 U CN202270717 U CN 202270717U CN 2011204236621 U CN2011204236621 U CN 2011204236621U CN 201120423662 U CN201120423662 U CN 201120423662U CN 202270717 U CN202270717 U CN 202270717U
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- CN
- China
- Prior art keywords
- pull rod
- bolt
- auxiliary device
- rolling mill
- replacing
- 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 - Fee Related
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Abstract
The utility model discloses an auxiliary device for replacing a pull rod of a shaft head bearing of a rolling mill in the field of steel rolling machines, which aims to solve the problems that the working efficiency is low and inconvenience in brought when the pull rod is replaced at present. The auxiliary device for replacing the pull rod of the shaft head bearing of the rolling mill comprises a connection plate, a mandril bolt and two compression bolts, wherein the center of the connection plate is provided with a mandril bolt hole; both sides of the mandril bolt hole are respectively provided with compression bolt holes which are consistent with the bolt holes of a flange plate at the head part of the pull rod in size and position; and the mandril bolt and the two compression bolts are correspondingly arranged in the mandril bolt hole and the compression bolt holes. When the auxiliary device for replacing the pull rod of the shaft head bearing of the rolling mill is used, firstly, the two compression bolts of the auxiliary device for replacing the pull rod of the shaft head bearing of the rolling mill pass through the bolt holes of the flange plate of the pull rod, and are fixed into the corresponding bolt holes at two positions on rack tubes, then, the pull rod is pushed by the mandril bolt until the pull rod is pushed to a spring pre-tightening position, then, two remaining bolts on the flange plate of the pull rod are reassembled and screwed down, and finally, the two compression bolt of the auxiliary device for replacing the pull rod of the shaft head bearing of the rolling mill are removed to change for the bolt of the pull rod and perform fastening. By utilizing the auxiliary device for replacing the pull rod of the shaft head bearing of the rolling mill, the working efficiency is greatly improved. Moreover, the operation is simple, convenient and safe.
Description
Technical field
The utility model relates to a kind of milling train spindle nose supporting rod in rolling machinery field and changes servicing unit.
Background technology
The effect that Wuhan Iron and Steel Plant two cold acid milling train spindle noses have supported connection working roll and power transmission shaft is the vitals of milling train power input.In the spindle nose supporting, be provided with spline fluted disc structure, corresponding with working roll spindle nose spline tooth, spline tooth is folded the axial location of locking homalocephalus and working roll and is transmitted the effect of working roll string roller action.The rotation of spline fluted disc can be arrived the locking position respectively and separated lock-bit by the rack drives that includes spring, pull bar.Power, the centrifugal force that rotates at a high speed or the pull bar spare part quality problems of when getting back to the locking position, being hit influence, and pull bar often ruptures.
Pull bar is bolted on the tooth bar tube with four through its head flanges dish, because the spring in the tooth bar needs the pretightning force of 1900N when pull bar is installed, must could return the set bolt of dress pull bar earlier with the spring compression when pull bar is installed.When occurring the pull bar fracture in each the production, on-line replacing extremely bothers, and must 3 people cooperate together, and artificial fixedly flitch compresses spring with jack, and then wears bolt.Return when dress in this way, the frequent misalignment of bolt hole, and very easily make recoil of spring, bullet wound operating personnel during operation.And local narrow and small in the frame, illumination difference, waste oil be many, hanging part is arranged, and great potential safety hazard is arranged during personnel's operation.
The utility model content
The purpose of the utility model is to overcome the prior art defective, provides a kind of milling train spindle nose supporting rod to change servicing unit.
The technical scheme of the utility model is achieved in that milling train spindle nose supporting rod replacing servicing unit; It is; It is made up of connecting plate and push rod bolt, hold-down bolt; The connecting plate center has the push rod bolt hole, and push rod bolt hole both sides have the hold-down bolt hole with rod head flange plate bolt hole size and position consistency, a corresponding push rod bolt and two hold-down bolts of being equipped with in push rod bolt hole and the hold-down bolt hole.
During use; Two hold-down bolts with the utility model pass pull bar flange plate bolt hole earlier, are fixed in two position respective bolt holes on the tooth bar tube, use push rod bolt top pull bar then; Push up spring pretension position always; Again two remaining on pull bar ring flange bolts are returned dress, tighten, pull down two hold-down bolts of the utility model at last, the bolt that changes pull bar into is also fastening.Utilize the utility model, the on-line replacing pull bar time was reduced to by original need 3 personal works only need 1 personal work 20 minutes at least in 1.5 hours, had improved operating efficiency greatly, and simple, convenient, safety.
Description of drawings
Fig. 1 is the utility model structural front view.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is that the utility model is installed front view.
Fig. 4 is the left view of Fig. 3.
Among the figure: 1-connecting plate, 2-push rod bolt, 3-hold-down bolt, 4-pull bar, 5-pull bar ring flange, 6-tooth bar tube, 7-spring.
The specific embodiment
Further describe below in conjunction with accompanying drawing.
Like Fig. 1, shown in Figure 2; Milling train spindle nose supporting rod is changed servicing unit, and it is that it is made up of connecting plate 1 and push rod bolt 2, hold-down bolt 3; Connecting plate 1 center has the push rod bolt hole; Push rod bolt hole both sides have a hold-down bolt hole with rod head flange plate bolt hole size and position consistency, correspondingly, are equipped with a push rod bolt 2 and two hold-down bolts 3 in above-mentioned push rod bolt hole and the hold-down bolt hole.During actual fabrication; Utilize discarded pull bar to remove bar portion, only stay the pull bar ring flange, symmetrical two bolts hole of this pull bar ring flange are amputated; Remaining two bolts hole up and down; The screw of M10 is processed in heart boring therein, tapping, be equipped with again a reach greater than the M10 bolt of 70mm and two total lengths greater than the 70mm M6 bolt identical with former stay-bolt screw thread.
Like Fig. 3, shown in Figure 4, during use, pass the bolt hole of pull bar ring flange 5 earlier with two hold-down bolts 3; Be fixed in two position respective bolt holes on the tooth bar tube 6; Rotate push rod bolt 2 top pull bars 4 then, push up spring 7 pretension positions always, again 5 two remaining bolts on the pull bar ring flange are returned dress, tighten; Pull down two hold-down bolts 3 of the utility model at last, the bolt that changes pull bar 4 into is also fastening.
Claims (1)
1. milling train spindle nose supporting rod is changed servicing unit; It is characterized in that: it is made up of connecting plate and push rod bolt, hold-down bolt; The connecting plate center has the push rod bolt hole; Push rod bolt hole both sides have the hold-down bolt hole with rod head flange plate bolt hole size and position consistency, a corresponding push rod bolt and two hold-down bolts of being equipped with in push rod bolt hole and the hold-down bolt hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204236621U CN202270717U (en) | 2011-11-01 | 2011-11-01 | Auxiliary device for replacing pull rod of shaft head bearing of rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204236621U CN202270717U (en) | 2011-11-01 | 2011-11-01 | Auxiliary device for replacing pull rod of shaft head bearing of rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202270717U true CN202270717U (en) | 2012-06-13 |
Family
ID=46191106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204236621U Expired - Fee Related CN202270717U (en) | 2011-11-01 | 2011-11-01 | Auxiliary device for replacing pull rod of shaft head bearing of rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202270717U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108003901A (en) * | 2017-12-05 | 2018-05-08 | 马鞍山钢铁股份有限公司 | A kind of coke oven bridge tube replacing options and its replacement auxiliary device |
-
2011
- 2011-11-01 CN CN2011204236621U patent/CN202270717U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108003901A (en) * | 2017-12-05 | 2018-05-08 | 马鞍山钢铁股份有限公司 | A kind of coke oven bridge tube replacing options and its replacement auxiliary device |
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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: 20120613 Termination date: 20171101 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |