CN205057901U - Electronic pretensioning means of reactor pressure vessel mother nut - Google Patents
Electronic pretensioning means of reactor pressure vessel mother nut Download PDFInfo
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- CN205057901U CN205057901U CN201520828674.0U CN201520828674U CN205057901U CN 205057901 U CN205057901 U CN 205057901U CN 201520828674 U CN201520828674 U CN 201520828674U CN 205057901 U CN205057901 U CN 205057901U
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- driving lever
- pressure vessel
- reactor pressure
- mother nut
- electronic
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Abstract
The utility model provides an electronic pretensioning means of reactor pressure vessel mother nut, includes: driving lever device and electronic jar, the driving lever device, include: driving lever and both ends do not have the hollow sleeve in the end, and the one end of driving lever is through selling and electronic jar swing joint, and the other end of driving lever leans out telescopic one side, and telescopic opposite side cup joints on the cylinder body of electronic jar, the utility model discloses simple structure, power supply are electronic, and the efficiency of electronic jar is controllable, have avoided many gear drive's efficiency loss, but transfer during field operation, the transfer stroke is controllable, has improved holistic work efficiency greatly.
Description
Technical field
The utility model belongs to a kind of electronic pre-tightening mechanism, is the electronic pre-tightening mechanism of a kind of reactor pressure vessel mother nut specifically.
Background technology
In the history of human development, after especially entering the industrial age, the effect of being threaded is more and more important.Along with the development of industrial technology, in steel industry, petroleum and petrochemical sector, in the assembling of the equipment such as large-scale chemical machinery, pressure vessel, large-scale being bolted to is closed important.
Necessary pretightning force controls to be the essential condition ensureing connection reliability, compactness.For the pretension of nuclear reactor pressure container mother nut, existing market mainly contains two kinds of actuating units and carries out auxiliary pretension work, and one is electric gear executing agency, and another is hydraulic power executing agency.Electric gear executing agency uses motor driven gear, is carried out the pretension work of mother nut by the gears meshing between mother nut, but in process, mechanical efficiency loss is large, and execution efficiency is low, and locking effect is poor; Pretightning force is uneven, and deviation is large.Hydraulic power executing agency promotes driving lever by hydraulic power to drive mother nut to carry out pretension work, but hydraulic power executing agency tie point is many, and connecting line is complicated, therefore leakage of oil point is many, on site environment affect large while reduce operating efficiency.
Utility model content
For solving the problems referred to above that prior art exists, the utility model provides the electronic pre-tightening mechanism of a kind of reactor pressure vessel mother nut, avoids the loss in efficiency of multi-gear transmission, can transfer during execute-in-place, transfer stroke is controlled, substantially increases overall operating efficiency.
For achieving the above object, the technical solution of the utility model is: the electronic pre-tightening mechanism of a kind of reactor pressure vessel mother nut, comprising: deflector rod device and electric cylinder; Described deflector rod device, comprising: the sleeve of the bottomless hollow of driving lever and two ends, and one end of driving lever is flexibly connected with electric cylinder by pin, and the other end of driving lever leans out the side of sleeve, and the opposite side of sleeve is socketed on the cylinder body of electric cylinder;
Further, described sleeve is provided with spacer pin;
Further, described electric cylinder, comprising: lead screw pair, cylinder body, leading screw, thrust bearing, motor and speed reducer structure; Described cylinder body, motor are placed on reducing gear, and leading screw is placed in cylinder interior, and leading screw one end is connected with lead screw pair, and the other end is connected with thrust bearing;
Further, this electronic pre-tightening mechanism is straight stroke electric actuating mechanism;
Further, described electric cylinder force drives driving lever to stir reactor pressure vessel mother nut.
The utility model, owing to adopting above technical scheme, can obtain following technique effect: the utility model structure is simple, and power source is electronic, and the efficiency of electric cylinder is controlled, avoids the loss in efficiency of multi-gear transmission; Can transfer during execute-in-place, transfer stroke is controlled, substantially increases overall operating efficiency.
Accompanying drawing explanation
The utility model has accompanying drawing 1 width:
Fig. 1 is structural representation of the present utility model.
In figure, sequence number illustrates: 1, spacer pin, 2, sleeve, 3, driving lever, 4, lead screw pair, 5, leading screw, 6, thrust bearing, 7, reducing gear, 8, motor.
Detailed description of the invention
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1
The electronic pre-tightening mechanism of a kind of reactor pressure vessel mother nut, comprising: deflector rod device and electric cylinder; Described deflector rod device, comprising: the sleeve 2 of the bottomless hollow of driving lever 3 and two ends, and one end of driving lever 3 is flexibly connected with electric cylinder by pin, and the other end of driving lever 3 leans out the side of sleeve 2, and the opposite side of sleeve 2 is socketed on the cylinder body of electric cylinder; Described sleeve 2 is provided with spacer pin 1; Described electric cylinder, comprising: lead screw pair 4, cylinder body, leading screw 5, thrust bearing 6, motor 8 and reducing gear 7; Described cylinder body, motor 8 are placed on reducing gear 7, and leading screw 5 is placed in cylinder interior, and leading screw 5 one end is connected with lead screw pair 4, and the other end is connected with thrust bearing 6; This electronic pre-tightening mechanism is straight stroke electric actuating mechanism; Described electric cylinder force drives driving lever 3 to stir reactor pressure vessel mother nut.
Embodiment 2
The difference of the present embodiment and embodiment 1 is: reducing gear 7 replaces with servomechanism.
The utility model utilizes the power-jdriven gear of electric cylinder, and promote driving lever 3 rectilinear motion, while driving lever 3 action, driving lever 3 and engaging between mother nut make mother nut directly carry out positive and reverse return motion, thus complete the pretension work of mother nut; Pre-tightening mechanism of the present utility model is supporting to be arranged on the main support ring of tools for bolts ' pretension machine; Power in electric operator process is electric energy, while raising the efficiency, avoids the phenomenon of hydraulic actuating mechanism leakage of oil.
The above; be only the utility model preferably detailed description of the invention; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to according to the technical solution of the utility model and utility model design thereof and replace or change, all should be encompassed within protection domain of the present utility model.
Claims (4)
1. the electronic pre-tightening mechanism of reactor pressure vessel mother nut, is characterized in that, comprising: deflector rod device and electric cylinder; Described deflector rod device, comprise: the sleeve (2) of the bottomless hollow of driving lever (3) and two ends, one end of driving lever (3) is flexibly connected with electric cylinder by pin, the other end of driving lever (3) leans out the side of sleeve (2), and the opposite side of sleeve (2) is socketed on the cylinder body of electric cylinder.
2. the electronic pre-tightening mechanism of a kind of reactor pressure vessel mother nut according to claim 1, is characterized in that, described sleeve (2) is provided with spacer pin (1).
3. the electronic pre-tightening mechanism of a kind of reactor pressure vessel mother nut according to claim 1 and 2, it is characterized in that, described electric cylinder, comprising: lead screw pair (4), cylinder body, leading screw (5), thrust bearing (6), motor (8) and reducing gear (7); Described cylinder body, motor (8) are placed on reducing gear (7), leading screw (5) is placed in cylinder interior, leading screw (5) one end is connected with lead screw pair (4), and the other end is connected with thrust bearing (6).
4. the electronic pre-tightening mechanism of a kind of reactor pressure vessel mother nut according to claim 3, is characterized in that, this electronic pre-tightening mechanism is straight stroke electric actuating mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520828674.0U CN205057901U (en) | 2015-10-23 | 2015-10-23 | Electronic pretensioning means of reactor pressure vessel mother nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520828674.0U CN205057901U (en) | 2015-10-23 | 2015-10-23 | Electronic pretensioning means of reactor pressure vessel mother nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205057901U true CN205057901U (en) | 2016-03-02 |
Family
ID=55384503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520828674.0U Active CN205057901U (en) | 2015-10-23 | 2015-10-23 | Electronic pretensioning means of reactor pressure vessel mother nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205057901U (en) |
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2015
- 2015-10-23 CN CN201520828674.0U patent/CN205057901U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |