CN204300076U - A kind of follower bolt of sleeper mould - Google Patents
A kind of follower bolt of sleeper mould Download PDFInfo
- Publication number
- CN204300076U CN204300076U CN201420725223.XU CN201420725223U CN204300076U CN 204300076 U CN204300076 U CN 204300076U CN 201420725223 U CN201420725223 U CN 201420725223U CN 204300076 U CN204300076 U CN 204300076U
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- Prior art keywords
- screw rod
- bolt head
- bolt
- utility
- model
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- Expired - Fee Related
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Abstract
A kind of follower bolt of sleeper mould, the screw rod that the finish rolling deformed bar that to comprise by external diameter be 15mm is formed and be arranged on the bolt head of screw rod one end, screw rod and bolt head overall length are 290mm-300mm, and the bolt head that the mode adopting hot pressing upsetting to make type by one end of screw rod is formed and screw rod are integrative-structure.The utility model adopts integrative-structure to can be avoided welding position and to go wrong the expense avoiding and repeatedly keep in repair, decrease cost, adopt the screw rod in the utility model can alleviate the extent of deterioration of nut, thus decrease cost, adopted screw thread to spread all over whole screw rod is installed very convenient simultaneously.
Description
Technical field
The utility model relates to the auxiliary connecting device in a kind of sleeper production process, especially relates to a kind of follower bolt of sleeper mould.
Background technology
Follower bolt is the important process accessory of sleeper mould, and it is used to compress the iron baffle plate often saving sleeper end in model, in order to control sleeper protective layer thickness and length.Because sleeper mould is steel construction welding punching block; need stretch-draw repeatedly in production and application process and put to open; stress does not stop to concentrate and release, and Long-Time Service easily produces fatigue deformation to be affected the precision of mould and then affect product size, and what wherein have the greatest impact is steel wire cover position.
Employing in the past controls cover to reinforcement and adopts pressure wire sub-panel, is subject to the high evaluation of the Ministry of Railways and Tie Ke institute, and in industry promotes when using at that time.
To 2010 we force sub-wire basis on carry out reformed AHP, improve punching block end and make precision, the sleeper end plate that processing dimension tolerance is more strict, pressing plate is adopted iron baffle plate to be pressed on the end often saving formwork, be fixed up so in process of production more convenient, substantially increase production efficiency.
But in use follower bolt is consumable accessory, the object of bolt design is fastening, but per tour all needs to carry out dismantling once when sleeper is produced, during Reusability, loss is surprising, for III c punching block, often overlap punching block and need installation 10 bolts, 105 covers just need 1050, every bolts access times are at about 20 times, the price of every bolts and nut is at 5.8 yuan, sleeper workshop needs replacing 32 bolts average every day, expend 185.6 yuan every day, moreover, the per tour of workshop machine maintenance class all will spend the plenty of time to carry out the replacing of nut, affect production efficiency, production cost also improves greatly, therefore need to develop a kind of long-lived fixed form.
Utility model content
The purpose of this utility model is for solving the large and bolt head of existing follower bolt loss and screw rod welds out the situation easily occurring snapping, and provides a kind of follower bolt of sleeper mould.
The utility model is the deficiency solved the problems of the technologies described above, and the technical scheme adopted is:
A kind of follower bolt of sleeper mould, the screw rod that the finish rolling deformed bar that to comprise by external diameter be 15mm is formed and be arranged on the bolt head of screw rod one end, screw rod and bolt head overall length are 290mm-300mm, and the bolt head that the mode adopting hot pressing upsetting to make type by one end of screw rod is formed and screw rod are integrative-structure.
Described screw rod and bolt head overall length are 295mm.
The beneficial effects of the utility model are: the utility model adopts integrative-structure to can be avoided welding position and to go wrong the expense avoiding and repeatedly keep in repair, decrease cost, adopt the screw rod in the utility model can alleviate the extent of deterioration of nut, thus decrease cost, adopted screw thread to spread all over whole screw rod is installed very convenient simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Graphical indicia: 1, bolt head; 2, screw rod.
Detailed description of the invention
Shown in figure, detailed description of the invention is as follows:
A kind of follower bolt of sleeper mould, the screw rod 2 that the finish rolling deformed bar that to comprise by external diameter be 15mm is formed and be arranged on the bolt head 1 of screw rod 2 one end, screw rod 2 and bolt head 1 overall length are 290mm-300mm, and the bolt head 1 that the mode adopting hot pressing upsetting to make type by one end of screw rod 2 is formed and screw rod 2 are in integrative-structure.
Described screw rod 2 is 295mm with bolt head 1 overall length.
The utility model have employed integrated structure, and the spiral adopted makes screw thread spread all over whole screw rod, arrange threaded structure and bolt head compared to local and be welded on structure on screw rod, the large and bolt head of the screw thread loss that the bolt of partial screw threads can be avoided to cause is welded on screw rod easily snaps needs the situation of reprocessing to occur.
The utility model in use gets finish rolling deformed bar every root blanking 338mm that external diameter is 15mm, the mode making type through finish rolling hot pressing upsetting carries out being processed to form bolt head, other factory's processing charges is appointed to be every root 2.8 yuan in this process, every root cost is 7.04 yuan, and every day is expended 32 bolts in sleeper workshop before, cost is 185.6 yuan, and labour cost is 200 yuan.If maintenance time cost and cost per efficiency unit disregard and can expend 11.6 ten thousand yuan every year.After adopting the fining twisted steel bolt in this utility model, R rates quoted above then can save, and more than expends and can save, and so just provides cost savings greatly.
Technical scheme cited by the utility model and embodiment be not restriction, be equal to the technical scheme cited by the utility model and embodiment or effect same approach all in the scope that the utility model is protected.
Claims (2)
1. the follower bolt of a sleeper mould, it is characterized in that: the screw rod (2) that the finish rolling deformed bar that to comprise by external diameter be 15mm is formed and the bolt head (1) being arranged on screw rod (2) one end, screw rod (2) and bolt head (1) overall length are 290mm-300mm, and the bolt head (1) that the mode adopting hot pressing upsetting to make type by one end of screw rod (2) is formed and screw rod (2) are in integrative-structure.
2. the follower bolt of a kind of sleeper mould according to claim 1, is characterized in that: described screw rod (2) and bolt head (1) overall length are 295mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420725223.XU CN204300076U (en) | 2014-11-28 | 2014-11-28 | A kind of follower bolt of sleeper mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420725223.XU CN204300076U (en) | 2014-11-28 | 2014-11-28 | A kind of follower bolt of sleeper mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204300076U true CN204300076U (en) | 2015-04-29 |
Family
ID=53105619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420725223.XU Expired - Fee Related CN204300076U (en) | 2014-11-28 | 2014-11-28 | A kind of follower bolt of sleeper mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204300076U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106514136A (en) * | 2016-09-19 | 2017-03-22 | 南京东电检测科技有限公司 | Forming method for brake disc high-strength bolt |
-
2014
- 2014-11-28 CN CN201420725223.XU patent/CN204300076U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106514136A (en) * | 2016-09-19 | 2017-03-22 | 南京东电检测科技有限公司 | Forming method for brake disc high-strength bolt |
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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: 20150429 Termination date: 20161128 |