CN201604314U - Prepressing device of press - Google Patents
Prepressing device of press Download PDFInfo
- Publication number
- CN201604314U CN201604314U CN2009202931661U CN200920293166U CN201604314U CN 201604314 U CN201604314 U CN 201604314U CN 2009202931661 U CN2009202931661 U CN 2009202931661U CN 200920293166 U CN200920293166 U CN 200920293166U CN 201604314 U CN201604314 U CN 201604314U
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- Prior art keywords
- cylinder body
- ring flange
- flange
- piston
- model
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- Expired - Fee Related
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Abstract
The utility model relates to a prepressing device of a press, which mainly solves the problem that the press in prior art has bad screw rod heat prepressing effect, and is not easy to control the prepressing force. The utility model is characterized in that bolts at the right side of an end cover (6) are connected to a cylinder body (3); a step flange (4) is connected to the right side of the cylinder body (3); a piston (1) is arranged outside a step at left side of the flange (4), and the outer part of the piston (1) respectively contacts the end cover (6) and the cylinder body (3); an inner hole and a right end surface of the flange (4) are matched with nuts (5); and an oil inlet (7) is arranged on the flange (4). The utility model has the advantages of easy prepressing control and simple operation.
Description
Technical field:
The utility model relates to mechanical manufacturing field, specifically the forcing press pre-compressing device.
Background technology:
Existing forcing press product need bear bigger reaction force in the course of the work; therefore the locking problem of stretching screw is an important process; present many producers continue to use hot pretension; because the ratio between heating-up temperature and pretightning force and the tensile elongation is not easy control; therefore effect is undesirable, crosses low and pretightning force is low or heating-up temperature is too high and pretightning force is broken the phenomenon of screw rod greatly thereby heating-up temperature appears in regular meeting.
The utility model content:
The hot pretension effect of existing forcing press screw rod is bad in order to solve, pretightning force is big or small does not allow manageable problem, and the utility model provides a kind of forcing press pre-compressing device, and this forcing press pre-compressing device has that pretightning force is controlled easily, characteristics simple to operate.
The technical solution of the utility model is: a kind of forcing press pre-compressing device, comprise the nut, the end cap that link to each other with screw rod, end cap right side bolt connects cylinder body, the right side of cylinder body is connected with the ring flange of step, ring flange left side step is equipped with piston outward, and the piston outside contacts with end cap, cylinder body respectively, and the endoporus of ring flange and right side cooperate with nut, and on the ring flange fuel feed hole are arranged.
The utlity model has following beneficial effect: owing to take such scheme, nut links to each other with screw rod, ring flange, end cap are fixed on the cylinder body, piston places on interior circle of cylinder body and the ring flange cylindrical, when by fuel feed hole in cylinder body during oiling, hydraulic oil promotes ring flange, nut moves right, thereby screw rod is elongated, finish pretension work, this pre-tightening apparatus is safe and reliable, and the pressure that only need control hydraulic oil can be controlled the size of pretightning force, and simple to operate, to the stretching screw of different size, only need to change nut and get final product.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model.
1-piston among the figure, 2-sealing ring, 3-cylinder body, 4-ring flange, 5-nut, 6-end cap, 7-oil-in, 8-screw rod.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
By shown in Figure 1, a kind of forcing press pre-compressing device comprises nut 5, end cap 6, and nut 5 is connected with screw rod 8, and screw rod 8 links to each other with the column of forcing press, can strain column by stretching screw rod 8.End cap 6 right sides connect cylinder body 3 by bolt, the right side of cylinder body 3 is connected with the ring flange 4 of step, ring flange 4 left side steps are equipped with piston 1 outward, and piston 1 outside contacts with end cap 6, cylinder body 3 respectively, contact portion has sealing ring 2 sealings, the endoporus of ring flange 4 and right side cooperate with nut 5, and nut 5 internal thread connecting screw rods 8 have fuel feed hole 7 on the ring flange 4.When by fuel feed hole 7 in cylinder body 3 during oiling, hydraulic oil promotes ring flange 4, nut 5 moves right, thereby screw rod 8 is elongated, finish pretension work, this pre-tightening apparatus is safe and reliable, and the pressure that only need control hydraulic oil can be controlled the size of pretightning force, and simple to operate, to the stretching screw of different size, only need to change nut and get final product.
Claims (1)
1. forcing press pre-compressing device, comprise the nut (5), the end cap (6) that link to each other with screw rod (8), it is characterized in that: end cap (6) right side bolt connects cylinder body (3), the right side of cylinder body (3) is connected with the ring flange (4) of step, ring flange (4) left side step is equipped with piston (1) outward, and piston (1) outside contacts with end cap (6), cylinder body (3) respectively, and the endoporus of ring flange (4) and right side cooperate with nut (5), and on the ring flange (4) fuel feed hole (7) are arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202931661U CN201604314U (en) | 2009-12-17 | 2009-12-17 | Prepressing device of press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202931661U CN201604314U (en) | 2009-12-17 | 2009-12-17 | Prepressing device of press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201604314U true CN201604314U (en) | 2010-10-13 |
Family
ID=42949024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202931661U Expired - Fee Related CN201604314U (en) | 2009-12-17 | 2009-12-17 | Prepressing device of press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201604314U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109281944A (en) * | 2018-10-19 | 2019-01-29 | 中国科学院工程热物理研究所 | The axial force pre-load arrangement of deep groove ball bearing in a kind of engine rotor fulcrum |
-
2009
- 2009-12-17 CN CN2009202931661U patent/CN201604314U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109281944A (en) * | 2018-10-19 | 2019-01-29 | 中国科学院工程热物理研究所 | The axial force pre-load arrangement of deep groove ball bearing in a kind of engine rotor fulcrum |
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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: 20101013 Termination date: 20141217 |
|
| EXPY | Termination of patent right or utility model |