CN203356208U - Flat head sleeve of locating connection shaft - Google Patents
Flat head sleeve of locating connection shaft Download PDFInfo
- Publication number
- CN203356208U CN203356208U CN 201320327584 CN201320327584U CN203356208U CN 203356208 U CN203356208 U CN 203356208U CN 201320327584 CN201320327584 CN 201320327584 CN 201320327584 U CN201320327584 U CN 201320327584U CN 203356208 U CN203356208 U CN 203356208U
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- CN
- China
- Prior art keywords
- flat head
- head sleeve
- bolt
- locating
- fittings body
- 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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- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The utility model provides a flat head sleeve of a locating connection shaft and aims at solving the problems that an existing flat head sleeve can easily cause a connector body to come off, a rolling roller is caused not to be accurate in locating, and the flat head sleeve is made to shake and even be damaged for bearing additional force. The flat head sleeve of the locating connection shaft comprises a flat head sleeve body. A connector body is arranged in the flat head sleeve body. The flat head sleeve of the locating connection shaft is characterized in that the flat head body is in interference clearance with the connector body, the connector body is arranged on the flat head body through a set of locating bolts, and a clamp spring and a sealing ring are arranged between the connector body and the flat head sleeve. The flat head sleeve is used for locating a connector roller of a rolling mill.
Description
technical field:
The utility model relates to a kind of a kind of novel location of extension shaft for rolling mill flat head sleeve and fixes, and is specifically related to a kind of location spade half coupling cover.
background technology:
The hot finisher power transmission shaft is the equipment that connects main transmission and roll, and wherein flat head sleeve is that main shaft follows roll directly to contact, for the vitals of homalocephalus location and carry-over moment.The flat head sleeve structure mainly comprises locating ring, flat head sleeve body, fittings body and fittings body fixation means, roller head is by the locating ring on flat head sleeve and fittings body and location, homalocephalus side, accurately the flat head sleeve of location is delivered to roll by driving torque and does not produce additional force, and wherein the positioning precision of locating ring and fittings body requires higher than homalocephalus side.
Use present situation through looking into design standard and domestic and international flat head sleeve, current flat head sleeve fixedly adopts in two ways aborning, the structure of mode one is by bolt anchor tip body, its cylindrical adopts matched in clearance, because of exist gap to cause installing in the early stage between bolt and bolt hole time location deviation slightly just, easily bear the roller palm additional force, under the impacts such as the frequent switching of rolling load and milling train self vibration, this set bolt is often easily loosening, and cause bolt be hit load and then fracture, although doing afterwards some screw retentions attempts, but screw retention causes again the more difficult maintenance of bolt after carrying out, thereby make the defect bolt can not get finding in time and fastening or replacing fracture cause the fittings body play.The stiction that the structure of mode two is produced by interference fit between fittings body and flat head sleeve body usually plays main positioning action, jump ring plays the auxiliary positioning effect, interference fit contributes to improve the positioning precision of fittings body, avoid fittings body to bear extra additional force, but because the impact of the factors such as temperature, lubricating oil infiltration, vibration, the magnitude of interference between fittings body and flat head sleeve body can change and produce play, jump ring needs intensity much smaller than bolt because of its open architecture and assembling, and the situation lower circlip impacted at frequent play can fracture.
Chinese patent CN202045148U discloses a kind of " flat-head sleeve for rough rolling mill ", it is by the contact of the cydariform in the middle of the fittings body centering ring, the moment of flexure of minimizing butt joint body after roller palm and locating ring wearing and tearing improves anti-loosing effect, this has shortened and has increased suitable fillet equivalence and has solved on the Novel flat headgear by the centering ring size, but its moment of flexure to objective reality is impacted to bolt the loosening and relatively low problem of fittings body positioning precision that conventional bolt connection causes because of the screw clearance issues easily caused and is not all proposed solution, still exist in use bolt and easily become flexible the problem that causes fittings body to get loose.
Chinese patent CN202411105U discloses a kind of " a kind of roughing mill main shaft flat head sleeve centralising device ", it is by lengthening roller head length with interior location loop contacts length, to lengthen and to improve locating effect, but this method has increased the roll use cost, and because many rolls are foundry goods, roller head targeting part size is less in addition, brittle failure easily occurs, and it is considered for the loosening mean of defense of encircling in fittings body simultaneously, the same problem that gets loose that exists.
Chinese patent CN201267827Y discloses a kind of " with the flat-head sleeve for rough rolling mill of locating ring ", its main innovate point is that the wearability by improving locating ring improves positioning performance, this all considers to some extent in follow-up manufacturer production process, but the location of its fittings body is fixed with the fixing bolt that adopts, for the accurate location and lockingly fail to propose effective measures of fittings body, still there is the fittings body problem that gets loose.
the utility model content:
The purpose of this utility model is that the problem for above-mentioned existence provides a kind of location spade half coupling cover, can effectively prevent from that fittings body from getting loose to cause the roll location to be forbidden to make the flat head sleeve shake even to damage because bearing additional force.
Above-mentioned purpose realizes by following technical scheme:
Location spade half coupling cover, comprise the flat head sleeve body, described flat head sleeve body the inside erection joint body, interference fit between described flat head sleeve body and described fittings body, described fittings body is arranged on described flat head sleeve body by one group of bolt, between described fittings body and described flat head sleeve, is provided with jump ring and sealing ring.
Described location spade half coupling cover, in described jump ring, edge is than the large 0.5mm of bolt counter sink of described bolt.
Described location spade half coupling cover is the interference fit of 0.02-0.04mm between fittings body and flat head sleeve body.
Beneficial effect:
1. the utility model effectively fully utilizes the advantage of bolt, interference, jump ring connection, has stablized the positioning precision of flat head sleeve and roll, has improved transmission of torque stability.
2. the utility model adopts jump ring to play locking the time and also by its size design, allow conventional bolted bolt, solved traditional fastening and locking problem that can not have both, solved the effective combination that realizes connection reliability and convenient maintainability in the confined space, the service life of having improved flat head sleeve.
3. fittings body of the present utility model is accurately located for roll.After the cold charge assembling is pressed into, presses and put in place with bolt, and bolt is tightened, be sealed in the bolt inboard for preventing oil leak.Coordinate and can effectively improve positioning precision by slight interference, and the stiction that utilizes interference fit to produce plays fixation; Fittings body adopts bolted simultaneously, solves the fittings body play that the impacts such as flat head sleeve Yin Wendu, vibration cause the interference friction to lose efficacy and cause.Jump ring is embedded in the flat head sleeve body, its end face is pressed against fittings body end face and bolt chieftain end face, with the auxiliary anchor tip body Qi tri-road protective actions of jump ring, double as anti-loosening device of bolt simultaneously, prevent that bolt looseness from causing the bolt fracture that is hit to make the fittings body displacement.
In jump ring of the present utility model hole dimension by size design than the bigger 0.5mm of bolt countersunk head, size design guarantees to be depressed into the bolt edge does not affect the bolted operation, can utilize so at ordinary times the short time maintenance to be checked this bolt fastening, effectively solve the maintainability of bolt.
the accompanying drawing explanation:
Fig. 1 is structural representation of the present utility model.
In figure: 1-roller head; 2-flat head sleeve body; The 3-sealing ring; The 4-fittings body; The 5-jump ring; The 6-bolt.
the specific embodiment:
As shown in Figure 1: location of the present utility model spade half coupling cover, comprise flat head sleeve body 2, described flat head sleeve body the inside erection joint body 4, interference fit between described flat head sleeve body and described fittings body, described fittings body is arranged on described flat head sleeve body by one group of bolt 6, is provided with jump ring 5 and sealing ring 3 between described fittings body and described flat head sleeve.
Embodiment 2:
The described location of embodiment 1 spade half coupling cover, in described jump ring, edge is than the large 0.5mm of bolt counter sink of described bolt.Size design guarantees to be depressed into the bolt edge does not affect the bolted operation, can utilize so at ordinary times the short time maintenance to be checked this bolt fastening, effectively solves the maintainability of bolt.
Embodiment 3:
Claims (3)
1. locate the spade half coupling cover for one kind, comprise the flat head sleeve body, described flat head sleeve body the inside erection joint body, it is characterized in that: interference fit between described flat head sleeve body and described fittings body, described fittings body is arranged on described flat head sleeve body by one group of bolt, between described fittings body and described flat head sleeve, is provided with jump ring and sealing ring.
2. location according to claim 1 spade half coupling cover is characterized in that: in described jump ring along than the large 0.5mm of bolt counter sink of described bolt.
3. location according to claim 1 and 2 spade half coupling cover, is characterized in that: between fittings body and flat head sleeve body, be the interference fit of 0.02-0.04mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320327584 CN203356208U (en) | 2013-06-07 | 2013-06-07 | Flat head sleeve of locating connection shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320327584 CN203356208U (en) | 2013-06-07 | 2013-06-07 | Flat head sleeve of locating connection shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203356208U true CN203356208U (en) | 2013-12-25 |
Family
ID=49804030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320327584 Expired - Fee Related CN203356208U (en) | 2013-06-07 | 2013-06-07 | Flat head sleeve of locating connection shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203356208U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722020A (en) * | 2013-12-27 | 2014-04-16 | 中色科技股份有限公司 | Drive roller structure with flat head and shaft sleeve in segment fit |
-
2013
- 2013-06-07 CN CN 201320327584 patent/CN203356208U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722020A (en) * | 2013-12-27 | 2014-04-16 | 中色科技股份有限公司 | Drive roller structure with flat head and shaft sleeve in segment fit |
| CN103722020B (en) * | 2013-12-27 | 2016-05-25 | 中色科技股份有限公司 | The live-roller structure that a kind of live-roller homalocephalus coordinates with axle sleeve segmented |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 |