CN203093082U - Combined type press machine body pull rod pre-tightening mechanism - Google Patents
Combined type press machine body pull rod pre-tightening mechanism Download PDFInfo
- Publication number
- CN203093082U CN203093082U CN 201320086902 CN201320086902U CN203093082U CN 203093082 U CN203093082 U CN 203093082U CN 201320086902 CN201320086902 CN 201320086902 CN 201320086902 U CN201320086902 U CN 201320086902U CN 203093082 U CN203093082 U CN 203093082U
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- pull rod
- combined type
- machine body
- tightening mechanism
- type press
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Abstract
The utility model discloses a combined type press machine body pull rod pre-tightening mechanism and belongs to the technical field of press machines. The combined type press machine body pull rod pre-tightening mechanism comprises an oil cylinder, a piston, a stretching nut and a support, wherein the support penetrates through a pull rod and a locking nut to be supported at the upper portion of an upper beam top plate, the oil cylinder is assembled on the support, the stretching nut is connected on the upper portion of the pull rod through a thread, and the piston is fixed in the oil cylinder through the stretching nut. Hydraulic oil can enter an oil tank from a hydraulic oil inlet through a manual pump with a pressure gage. When a pointer of the pressure gage where hydraulic oil is injected reaches to a rated value, the locking nut is rotated to be in place, the pull rod can be pre-tightened, and pre-tightening force of the pull can be controlled. Thus, machine body rigidity is guaranteed, production efficiency is improved, and further pre-tightening force is prevented from being overlarge to damage threads at the ends of the pull rod.
Description
Technical field
The utility model relates to a kind of combined type press fuselage pull bar pre-tightening mechanism, belongs to the press technologies field.
Background technology
At present, the rigidity of monoblock type press frame is guaranteed by the structure of itself, rigidity for large-scale enclosed combined type press fuselage need be controlled the pretightning force of pull bar by locking nut, and the size of pretightning force is normally controlled the size of pretightning force by means of the method for measuring spanner for force moment, torque wrench or the control screw-down torques such as elongation of measurement bolt after tightening.Because the diameter of pull bar is relatively large, the locking nut external diameter is also big relatively, can't control the size of pretightning force with said method.
Summary of the invention
At the problem that above-mentioned prior art exists, the utility model provides a kind of combined type press fuselage pull bar pre-tightening mechanism, can conveniently control the size of pretightning force.
To achieve these goals, the technical solution adopted in the utility model is: a kind of combined type press fuselage pull bar pre-tightening mechanism, comprise oil cylinder, piston, stretching nut and bearing, bearing passes pull bar and locking nut is supported on entablature top board top, oil cylinder is assemblied on the bearing, the stretching nut is by being threaded in the top of pull bar, and piston is fixed in the oil cylinder by the stretching nut.
Further, the piston Internal and external cycle all is equipped with sealing ring.
The beneficial effects of the utility model are: hydraulic oil is entered in the oil sump by the hydraulic oil inlet by being with manometric manual pump, after the gauge hand that injects hydraulic oil reaches the value of regulation, the rotational lock nut puts in place and gets final product, promptly finish the pretension of pull bar, pull bar pretightning force big or small controlled guaranteed stiffness of fuselage, improved production efficiency, and prevent that pretightning force is excessive, damage the screw thread of tie rod end.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1, oil cylinder, 2, sealing ring, 3, piston, 4, the entablature top board, 5, the stretching nut, 6, oil sump 7, hydraulic oil inlet, 8, bearing, 9, locking nut, 10, pull bar.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, this combined type press fuselage pull bar pre-tightening mechanism comprises oil cylinder 1, piston 3, stretching nut 5 and bearing 8; After the prepackage of finishing pull bar 10, cross girder, locking nut 9, use this pre-tightening mechanism; Bearing 8 passes pull bar 10 and locking nut 9 is supported on entablature top board 4 tops, and the oil cylinder 1 that piston 3 will be housed again is installed on the bearing 8, and stretching nut 5 is by being threaded in the top of pull bar 10, and piston 3 is fixed in the oil cylinder 1 by stretching nut 5.
During use, hydraulic oil is entered in the oil sump 6 by hydraulic oil inlet 7 by being with manometric manual pump, after the gauge hand that injects hydraulic oil reaches the value of regulation, rotational lock nut 9 puts in place and gets final product, promptly finish the pretension of pull bar 10, use the utility model can control the size of pretightning force easily.After pretension is finished, shed the pressure of hydraulic oil, remove this pre-tightening mechanism.Oil cylinder 1, piston 3 and stretching nut 5 adopt forging, and intensity is strengthened, and are not easy to damage, and improve efficiency of assembling.
In order to improve the sealing property of piston 3, piston 3 Internal and external cycles all are equipped with sealing ring 2.
Claims (2)
1. combined type press fuselage pull bar pre-tightening mechanism, it is characterized in that, comprise oil cylinder (1), piston (3), stretching nut (5) and bearing (8), bearing (8) passes pull bar (10) and locking nut (9) is supported on entablature top board (4) top, oil cylinder (1) is assemblied on the bearing (8), stretching nut (5) is by being threaded in the top of pull bar (10), and piston (3) is fixed in the oil cylinder (1) by stretching nut (5).
2. a kind of combined type press fuselage pull bar pre-tightening mechanism according to claim 1 is characterized in that described piston (3) Internal and external cycle all is equipped with sealing ring (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320086902 CN203093082U (en) | 2013-02-26 | 2013-02-26 | Combined type press machine body pull rod pre-tightening mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320086902 CN203093082U (en) | 2013-02-26 | 2013-02-26 | Combined type press machine body pull rod pre-tightening mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203093082U true CN203093082U (en) | 2013-07-31 |
Family
ID=48844522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320086902 Expired - Fee Related CN203093082U (en) | 2013-02-26 | 2013-02-26 | Combined type press machine body pull rod pre-tightening mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203093082U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104368956A (en) * | 2014-11-24 | 2015-02-25 | 中船动力有限公司 | Diesel engine crankshaft coupling installation tool and method |
| CN106475509A (en) * | 2016-12-05 | 2017-03-08 | 重集团大连设计研究院有限公司 | A kind of large-scale combined hydraulic press frame structure for being capable of constantly pretension |
| CN106956461A (en) * | 2017-03-29 | 2017-07-18 | 佛山市恒力泰机械有限公司 | A kind of Split type hydraulic machine frame and its installation method |
| CN108457843A (en) * | 2018-03-30 | 2018-08-28 | 漳州群利机械制造有限公司 | A kind of pressure-air suppressor |
-
2013
- 2013-02-26 CN CN 201320086902 patent/CN203093082U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104368956A (en) * | 2014-11-24 | 2015-02-25 | 中船动力有限公司 | Diesel engine crankshaft coupling installation tool and method |
| CN106475509A (en) * | 2016-12-05 | 2017-03-08 | 重集团大连设计研究院有限公司 | A kind of large-scale combined hydraulic press frame structure for being capable of constantly pretension |
| CN106956461A (en) * | 2017-03-29 | 2017-07-18 | 佛山市恒力泰机械有限公司 | A kind of Split type hydraulic machine frame and its installation method |
| CN108457843A (en) * | 2018-03-30 | 2018-08-28 | 漳州群利机械制造有限公司 | A kind of pressure-air suppressor |
| CN108457843B (en) * | 2018-03-30 | 2019-05-21 | 漳州群利机械制造有限公司 | A kind of pressure-air suppressor |
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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: 20130731 Termination date: 20160226 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |