CN204986238U - Prestressing force base group - Google Patents
Prestressing force base group Download PDFInfo
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- CN204986238U CN204986238U CN201520575128.0U CN201520575128U CN204986238U CN 204986238 U CN204986238 U CN 204986238U CN 201520575128 U CN201520575128 U CN 201520575128U CN 204986238 U CN204986238 U CN 204986238U
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- prestressing force
- load receiving
- receiving part
- base group
- utility
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Abstract
The utility model discloses a prestressing force base group is formed by at least 2 prestressing force seat end to end, and the prestressing force stationary ladle is drawn together: bearing portion and the prestressing force linking portion of being fixed in bearing portion lateral wall, bearing portion up end is fixed with upper portion equipment, and bearing troops under one's command terminal surface is fixed with the basis, the between adjacent sidewalls of the bearing portion of every two adjacent prestressing force seats all is provided with the prestressing force linking portion that can link up each other, and connects through double thread pole and two lock nut between two prestressing force seats, adopt above -mentioned technical scheme the utility model discloses a double thread pole and two lock nut form to link up provides prestressing force, and this prestressing force acts on bearing portion through prestressing force linking portion, and the prestressing force seat that ought a plurality ofly have this kind of structure like this links together and has just constituteed a base group that has prestressing force.
Description
Technical field
The utility model relates to main equipment base group, particularly relates to a kind of prestressing force base group of the equipment such as extra-large-size vertical-shaft wind power generation, stretch-reducing mill, continuous tube drawing bench.
Background technique
The fields such as present wind-power electricity generation, metallurgical machinery; often can run into adjacent one group of plant bottom case and be subject to onesize and situation that is direction tilting moment; as in vertical axis wind power generation; wind energy drives the bull gear on main shaft to rotate; bull gear drives again and is distributed on its multiple pinion rotation circumferentially, the now adjacent tilting moment equal and opposite in direction suffered by small gear base and direction is identical.Because the engaging force between bull gear and small gear is very large, sometimes up to hundreds of ton, therefore the moment that is subject to of equipment Foundations is also very large.The plant bottom case of usual wind power generating set with vertical shaft is all placed in above the thick floor of 200mm, and its tilting moment that can bear is very limited, thus often occurs because of stressed excessive and damage the situation of floor.In addition, tilting moment also can produce moderate finite deformation to small gear base, thus affects the normal engagement between gear pair.
Therefore, how to solve the stressed and base of equipment Foundations and be out of shape the technical barrier that excessive problem is vertical axis wind power generation industry always.
Summary of the invention
The utility model, for above-mentioned technical problem, proposes a kind of contrary prestressing force moment in tilting moment direction with equipment that provides own to offset part tilting moment, reduces the base group of base distortion.
For reaching above object, be achieved through the following technical solutions:
A kind of prestressing force base group, is connected by least 2 prestressing force seat first places and forms;
Wherein, the combination of prestressing force seat can be array-type or forms the first closed ring type be connected;
Prestressing force seat comprises: load receiving part and the prestressing force convergence part being fixed on load receiving part sidewall; Wherein, load receiving part upper-end surface and top equipment are fixed, and load receiving part lower end surface and basis are fixed; Wherein, often the adjacent wall of the load receiving part of adjacent two prestressing force seats is provided with the prestressing force convergence part that can mutually be connected, and is connected with two locking nuts by double thread screw bar between two prestressing force convergence parts;
Adopt the utility model of technique scheme, adjacent two prestressing force convergence parts are connected by double thread screw bar and two locking nuts, prestressing force is formed at double thread screw bar two ends by locking nut, this prestressing force acts on load receiving part by prestressing force convergence part, just constitutes one and has prestressed base group like this when multiple prestressing force seat with this structure links together; Wherein, the difference of prestressing force size, can select the double thread screw bar of unlike material or different-diameter;
As preferred structure, each load receiving part is provided with two prestressing force convergence parts, and is symmetrically distributed in the load receiving part left and right sides;
Wherein, load receiving part sidewall is C type structure framework, and C type structure framework inside is provided with multiple gusset for strengthening intensity, and between two side, prestressing force convergence part, part is provided with the gusset for strengthening intensity equally;
The prestressing force convergence part assembling form of each prestressing force seat for one of them be ┕ type, another is ┑ type, and two prestressing force convergence parts are all reserved with the through hole run through for double thread screw bar, two locking nut two ends pretensions;
This structure mainly forms one and reinforces body structure, and the linking form of adjacent two prestressing force convergence parts is assembled with coordinating of ┑ type by ┕ type, be convenient to two prestressing force convergence parts be like this connected, this assembling form is convenient to install double thread screw bar and locking nut simultaneously.
To sum up, the utility model achieves unit by unique structural design and is connected with unit, form the base group of combined pretightening force, offset part tilting moment, reduce base distortion, and the intensity of overall structure consideration and installation are connected convenience, are a kind of prestressing force base group taking into full account the new structure of performance and cost.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to technological means of the present utility model can be better understood, and can be implemented according to the content of specification, and can become apparent to allow above and other object of the present utility model, feature and advantage, below especially exemplified by preferred embodiment, and join accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
The utility model is totally 5 width accompanying drawings, wherein:
Fig. 1 is structural representation after two prestressing force seats combination of the present utility model.
Fig. 2 is array-type of the present utility model arrangement plan structure schematic diagram.
Fig. 3 is closed loop of the present utility model arrangement plan structure schematic diagram.
Fig. 4 is prestressing force seat perspective view of the present utility model.
Fig. 5 is single prestressing force seat force analysis schematic diagram of the present utility model.
In figure: 1, prestressing force seat, 1.1, load receiving part, 1.2, prestressing force convergence part, 1.3, C type structure framework, 2, double thread screw bar, 3, locking nut, 4, pad.
Embodiment
A kind of prestressing force base group as shown in Figure 1 and Figure 4, is joined end to end by least 2 prestressing force seats and forms;
Wherein, the combination of prestressing force seat 1 can be array-type or forms end to end closed ring type, as shown in Figures 2 and 3;
Prestressing force seat 1 comprises: load receiving part 1.1 and the prestressing force convergence part 1.2 being fixed on load receiving part 1.1 sidewall; Wherein, load receiving part 1.1 upper-end surface and top equipment are fixed, and load receiving part 1.1 lower end surface and basis are fixed; Wherein, often the adjacent wall of the load receiving part 1.1 of adjacent two prestressing force seats 1 is provided with the prestressing force convergence part 1.2 that can mutually be connected, and be connected with two locking nuts 3 by double thread screw bar 2 between two prestressing force convergence parts 1.2, and correspondence is equipped with pad 4 simultaneously;
Adopt the utility model of technique scheme, adjacent two prestressing force convergence parts 1.2 are connected by double thread screw bar 2 and two locking nuts 3, prestressing force is formed at double thread screw bar 2 two ends by locking nut, this prestressing force acts on load receiving part 1.1 by prestressing force convergence part 1.2, just constitutes one and has prestressed base group like this when multiple prestressing force seat with this structure links together; Wherein, the difference of prestressing force size, can select the double thread screw bar 2 of unlike material or different-diameter;
As preferred structure, each load receiving part 1.1 is provided with two prestressing force convergence parts 1.2, and is symmetrically distributed in load receiving part 1.1 left and right sides;
Wherein, load receiving part 1.1 sidewall is C type structure framework 1.3, and C type structure framework 1.3 inside is provided with multiple gusset for strengthening intensity, and between two side, prestressing force convergence part 1.2, part is provided with the gusset for strengthening intensity equally;
Prestressing force convergence part 1.2 assembling form of each prestressing force seat for one of them be ┕ type, another is ┑ type, and two are connected prestressing force convergence part 1.2 linking parts and are all reserved with the through hole run through for double thread screw bar 2, two locking nut 3 two ends pretensions;
This structure mainly forms one and reinforces body structure, and the linking form of adjacent two prestressing force convergence parts 1.2 is assembled with coordinating of ┑ type by ┕ type, be convenient to two prestressing force convergence parts 1.2 like this and be connected and facilitate this assembling form to be convenient to installation double thread screw bar 2 and locking nut 3 simultaneously.
Principle:
As shown in Figure 5, wherein: Mq---equipment tilting moment; Md---basic Moment; My---prestressing force moment; Fy---prestressing force; A---the spacing between prestressing force; The corner distortion of θ---base upper surface;
When not adopting prestressing force base, the moment that basis is applied to base and the moment equal and opposite in direction suffered by basis, direction are contrary, for convenience of understanding, directly adopt the moment suffered by basis to analyze herein:
Then have: Md=Mq;---------------1. formula
Fig. 5 is the equipment free-body diagram using prestressing apparatus, and as can be seen from force analysis, the prestressing force convergence part of load receiving part both sides is all subject to the prestressed directed force F y of double thread screw bar, and this pair force direction is contrary, and spacing is a, and the prestressing force moment of generation is My.
Then have: My=Fy × a;---------------2. formula
And the direction of My is just in time contrary with equipment tilting moment Mq, the moment Md now suffered by basis is:
Md=Mq-My=Mq-Fy × a;---------------3. formula
To 1. formula and 3. formula carry out contrast and can find out, when equipment tilting moment Mq is constant, after increasing prestressing apparatus, basic Moment reduces My.
The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, although the utility model discloses as above with preferred embodiment, but and be not used to limit the utility model, any those skilled in the art are not departing within the scope of technical solutions of the utility model, when the technology contents that appeal can be utilized to disclose is made a little change or is modified to the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (2)
1. a prestressing force base group, is characterized in that: being joined end to end by least 2 prestressing force seats (1) forms, and wherein prestressing force seat (1) comprising: load receiving part (1.1) and be fixed on the prestressing force convergence part (1.2) of load receiving part (1.1) sidewall; Wherein, load receiving part (1.1) upper-end surface and top equipment are fixed, and load receiving part (1.1) lower end surface and basis are fixed; Wherein, often the adjacent wall of the load receiving part (1.1) of adjacent two prestressing force seats (1) is provided with the prestressing force convergence part (1.2) that can mutually be connected, and is connected with two locking nuts (3) by double thread screw bar (2) between two prestressing force convergence parts (1.2).
2. a kind of prestressing force base group according to claim 1, is characterized in that:
Described each load receiving part (1.1) is provided with two prestressing force convergence parts (1.2), and is symmetrically distributed in load receiving part (1.1) left and right sides;
Wherein, load receiving part (1.1) sidewall is C type structure framework (1.3), and C type structure framework (1.3) inside is provided with multiple gusset for strengthening intensity, and between prestressing force convergence part (1.2) two side, part is provided with the gusset for strengthening intensity equally;
Wherein, prestressing force convergence part (1.2) assembling form of each prestressing force seat for one of them be ┕ type, another is ┑ type, and two prestressing force convergence parts (1.2) are all reserved with the through hole run through for double thread screw bar (2), two locking nut (3) two ends pretensions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520575128.0U CN204986238U (en) | 2015-07-31 | 2015-07-31 | Prestressing force base group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520575128.0U CN204986238U (en) | 2015-07-31 | 2015-07-31 | Prestressing force base group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204986238U true CN204986238U (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520575128.0U Expired - Fee Related CN204986238U (en) | 2015-07-31 | 2015-07-31 | Prestressing force base group |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020543A (en) * | 2015-07-31 | 2015-11-04 | 大连华锐重工集团股份有限公司 | Prestressed base set |
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2015
- 2015-07-31 CN CN201520575128.0U patent/CN204986238U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020543A (en) * | 2015-07-31 | 2015-11-04 | 大连华锐重工集团股份有限公司 | Prestressed base set |
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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: 20160120 Termination date: 20180731 |
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| CF01 | Termination of patent right due to non-payment of annual fee |