CN202991689U - Oil cylinder of integral stud tensioner and integral stud tensioner - Google Patents
Oil cylinder of integral stud tensioner and integral stud tensioner Download PDFInfo
- Publication number
- CN202991689U CN202991689U CN 201220538525 CN201220538525U CN202991689U CN 202991689 U CN202991689 U CN 202991689U CN 201220538525 CN201220538525 CN 201220538525 CN 201220538525 U CN201220538525 U CN 201220538525U CN 202991689 U CN202991689 U CN 202991689U
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- oil
- oil pocket
- oil cylinder
- auxiliary hole
- pockets
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Abstract
The utility model discloses an oil cylinder of an integral stud tensioner and the integral stud tensioner, and belongs to the field of assembly. The oil cylinder comprises an annular body, a plurality of oil chambers and an external oil port, the oil chambers are arranged in the annular body, the number of the oil chambers is matched with that of flange bolts, the interiors of the oil chambers are connected in series, the external oil port is communicated with the oil chambers, and the external oil port is used for feeding in the process of loading and discharging in the process of unloading. The integral stud tensioner comprises the oil cylinder. Due to the fact that the oil chambers are connected in series, the radial dimension of the integral stud tensioner is small, adaptability of the integral stud tensioner under narrow working conditions is enhanced, usage number of oil pipes and quick couplings is reduced greatly due to structure that the external oil port is communicated with the oil chambers, installing efficiency of the integral stud tensioner is improved, operating convenience is improved, economical efficiency is improved, and outleakage faults of a hydraulic system of the integral stud tensioner are reduced.
Description
Technical field
The utility model relates to whole bolt stretching machine, particularly a kind of oil cylinder of whole bolt stretching machine and whole bolt stretching machine.
Background technique
At present industrially extensively utilize flange to connect to realize the fixing and sealing of to be connected.Most sealing flanges are circular, and the above is evenly equipped with N through hole, pass the N bolts that is meshed with it in through hole to realize the connection of flange.These bolts require by fastening equably, and namely the pretightening force of every bolts is identical.Because the bolt stretching machine precision of exerting oneself is high, therefore high working efficiency realizes the pretension of bolt usually by bolt stretching machine.
Bolt stretching machine mainly contains monomer bolt stretching machine and whole bolt stretching machine at present.The below is illustrated as an example of whole bolt stretching machine example.Whole bolt stretching machine is all bolts on a fastening flange simultaneously.Whole bolt stretching machine comprises oil cylinder, and the cylinder structure form is split type oil cylinder, connects by outer rigid conduit between each oil pocket in split type oil cylinder.
Limited by above-mentioned cylinder structure, make whole bolt stretching machine radial dimension large, not only limited whole bolt stretching machine in the use of small space, and the hard tube that protrudes easily clashed into, cause the rate of fault of whole bolt stretching machine high.
The model utility content
Limited by split type cylinder structure in order to solve prior art, the whole bolt stretching machine that causes is in the restricted problem of the use of small space, and the hard tube that protrudes is easily clashed into, cause the high problem of rate of fault of bolt stretching machine, the utility model embodiment provides a kind of oil cylinder of whole bolt stretching machine.Described technological scheme is as follows:
A kind of oil cylinder of whole bolt stretching machine, be used for receiving liquid medium in order to be pretension flange bolt transferring energy, described oil cylinder comprises ring body, a plurality of oil pocket and an outside hydraulic fluid port, described a plurality of oil pocket is arranged on described ring body, the quantity of described a plurality of oil pockets is consistent with the quantity of described flange bolt, internal series-connection between described a plurality of oil pocket, described outside hydraulic fluid port is connected with described a plurality of oil pockets, and described outside hydraulic fluid port is in order to realize loading procedure oil-feed and uninstall process oil extraction.
Particularly, the internal series-connection between described a plurality of oil pockets is to realize by the oilhole and the auxiliary hole that are arranged on described ring body, and described auxiliary hole is provided with plug, and described plug is in order to seal described auxiliary hole.
Particularly, the both sides of each oil pocket in described a plurality of oil pocket respectively are provided with a described oilhole, the quantity of described auxiliary hole is consistent with the quantity of described a plurality of oil pockets, wherein, the adjacent oilhole of two adjacent oil pockets is connected by described auxiliary hole, and described auxiliary hole is perpendicular to the end face setting of described annular cylinder.
Particularly, the described adjacent oilhole of described two adjacent oil pockets is on the circle center line connecting direction of described two adjacent oil pockets, the inclined oil hole of air that arranges to the fillet center of oil pocket sidewall separately along oil pocket bottom surface separately, the axis of described inclined oil hole of air is θ with the angle of oil pocket bottom surface separately, and 10 °≤θ≤35 °, the midpoint of described two adjacent oil pocket circle center line connectings is arranging described auxiliary hole.
The utility model also provides a kind of whole bolt stretching machine, the pretension that is used for flange bolt, described whole bolt stretching machine comprises above-mentioned oil cylinder, also comprise supporting bridge, piston, stretching nut and rapid pipe joint, described oil cylinder below is arranging described supporting bridge, described piston and described stretching nut be a plurality of and with the corresponding setting one by one of described a plurality of oil pockets, described piston is arranged in described oil pocket, described stretching nut is arranged on the top of described piston, and described rapid pipe joint is arranged on described outside oil port.
The beneficial effect that the technological scheme that the utility model embodiment provides is brought is:
The described oil cylinder of the utility model embodiment comprises ring body, a plurality of oil pocket and an outside hydraulic fluid port, by internal series-connection between a plurality of oil pockets, make the radial dimension of whole bolt stretching machine little, strengthened the adaptability of whole bolt stretching machine under narrow operating mode, the structure that is connected with described a plurality of oil pockets by an outside hydraulic fluid port, greatly reduced the usage quantity of oil pipe and rapid pipe joint, improve the installation efficiency of whole bolt stretching machine, improved operation convenience, improve Economy, reduced the fault that leaks outside of whole bolt tension machine hydraulic system.
Description of drawings
In order to be illustrated more clearly in the technological scheme in the utility model embodiment, during the below will describe embodiment, the accompanying drawing of required use is done to introduce simply, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the oil cylinder plan view of the whole bolt stretching machine that provides of the utility model embodiment;
Figure 1A is the A-A sectional view of Fig. 1;
Figure 1B is that the B-B of Fig. 1 analyses and observe rotation diagram;
Fig. 1 C is the C-C sectional view of Figure 1B;
Fig. 1 D is the partial enlarged drawing of I in Fig. 1 C.
Fig. 2 is the agent structure schematic diagram of the whole bolt stretching machine that provides of the utility model embodiment;
Fig. 3 is the whole bolt stretching machine operating mode schematic diagram that the utility model embodiment provides;
Fig. 4 is the whole bolt stretching machine scheme of installation that the utility model embodiment provides.
In figure, each symbolic representation implication is as follows:
1 supporting bridge,
2 oil cylinders, the 2A ring body, the 2B oil pocket, the 2C oilhole, the 2D auxiliary hole, the outside hydraulic fluid port of 2E,
The axis of θ inclined oil hole of air and the angle of oil pocket bottom surface separately,
3 rapid pipe joints,
4 pistons,
5 plugs,
6 stretching nuts,
10 kingbolts,
11 mother nuts,
12 spherical washers,
13 mounting flanges,
14 blind hole flanges,
20 whole bolt stretching machines,
21 operating modes.
Embodiment
For making the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model mode of execution is described in further detail.
as shown in Figure 1, the oil cylinder of a kind of whole bolt stretching machine that the utility model embodiment provides, be used for receiving liquid medium in order to be pretension flange bolt transferring energy, the described ring body 2A that comprises, a plurality of oil pocket 2B and an outside hydraulic fluid port 2E, described a plurality of oil pocket 2B is arranged on described ring body 2A, the quantity of described a plurality of oil pocket 2B is consistent with the quantity of described flange bolt, internal series-connection between described a plurality of oil pocket 2B, described outside hydraulic fluid port 2E is connected with described a plurality of oil pocket 2B, described outside hydraulic fluid port 2E is in order to realize loading procedure oil-feed and uninstall process oil extraction.
The utility model embodiment is by internal series-connection between a plurality of oil pocket 2B, make the radial dimension of whole bolt stretching machine little, strengthened the adaptability of whole bolt stretching machine under narrow operating mode, the structure that is connected with described a plurality of oil pocket 2B by an outside hydraulic fluid port 2E, greatly reduce the usage quantity of oil pipe and rapid pipe joint 3, improved the installation efficiency of whole bolt stretching machine, improved operation convenience, improve Economy, reduced the fault that leaks outside of whole bolt tension machine hydraulic system.
Particularly, as shown in Figure 1A, in the present embodiment, internal series-connection between described a plurality of oil pocket 2B is to realize by oilhole 2C and the auxiliary hole 2D that is arranged on described ring body 2A, described auxiliary hole 2D is provided with plug 5(referring to Fig. 2), described plug 5(is referring to Fig. 2) in order to seal described auxiliary hole 2D.Described plug 5(is referring to Fig. 2) be preferably interior hexagonal plug.
Particularly, as shown in Figure 1B, in the present embodiment, outside hydraulic fluid port 2E is connected with auxiliary hole 2D.
Preferably, as shown in Fig. 1 C and 4D, in the present embodiment, the both sides of each oil pocket 2B in described a plurality of oil pocket 2B respectively are provided with a described oilhole 2C, the quantity of described auxiliary hole 2D is consistent with the quantity of described a plurality of oil pocket 2B, wherein, the adjacent oilhole 2C of two adjacent oil pocket 2B is connected by described auxiliary hole 2D, and described auxiliary hole 2D is perpendicular to the end face setting of described annular cylinder 2.
More preferably, as shown in Fig. 1 D, in the present embodiment, the described adjacent oilhole 2C of described two adjacent oil pocket 2B is on the circle center line connecting direction of described two adjacent oil pocket 2B, the inclined oil hole of air that arranges to the fillet center of oil pocket 2B sidewall separately along oil pocket 2B bottom surface separately, the axis of described inclined oil hole of air is θ with the angle of oil pocket 2B bottom surface separately, and 10 °≤θ≤35 °, and the midpoint of described two adjacent oil pocket 2B circle center line connectings is arranging described auxiliary hole 2D.
as shown in Figure 2, the utility model embodiment also provides a kind of whole bolt stretching machine, the pretension that is used for flange bolt, described whole bolt stretching machine comprises above-mentioned oil cylinder 2, also comprise supporting bridge 1, piston 4, stretching nut 6 and rapid pipe joint 3, described oil cylinder 2 belows are arranging described supporting bridge 1, described piston 4 and described stretching nut 6 be a plurality of and with described a plurality of oil pocket 2B corresponding setting one by one, described piston 4 is arranged in described oil pocket 2B, described stretching nut 6 is arranged on the top of described piston 4, described rapid pipe joint 3 is arranged on described outside hydraulic fluid port 2E place.
As shown in Figure 3, the whole bolt stretching machine operating mode schematic diagram that the utility model embodiment provides, wherein, operating mode is that flange to be connected comprises blind hole flange 14, mounting flange 13, spherical washer 12, mother nut 11 and kingbolt 10.
As shown in Figure 4, whole bolt stretching machine 20 scheme of installations that the utility model embodiment provides, whole bolt stretching machine 20 is used for operating mode 21, and wherein, whole bolt stretching machine 20 is with the described oil cylinder 2 of the utility model embodiment.
As shown in Figure 4, when whole bolt stretching machine 20 was done stretching work, oil cylinder 2 was converted to thrust by the piston 4 that coordinates with each oil pocket 2B with pressure medium, and acts on stretching nut 6 under the effect of the high-pressure medium that oil hydraulic pump provides.Stretching nut 6 acts on tensile force on every kingbolt 10 uniformly.When kingbolt 10 is stretched nut 6 stretching, mother nut 11 will produce the gap with the flanged surface of mounting flange 13, and this gap can be eliminated by screwing mother nut 11.The gap sheds system media pressure after eliminating, and the tensile force of whole bolt stretching machine 20 is namely transferred on mother nut 11 from stretching nut 6, thereby has completed the pretension of kingbolt 10.As seen, these integral body bolt stretching machine 20 compact structures, the pretension precision is high, can efficiently complete the fastening work of flange bolt, greatly shortens installation and the repair cycle of equipment.Especially in harmful environment, will play a great role.
Above-mentioned the utility model embodiment sequence number does not represent embodiment's quality just to description.
The above is only preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. the oil cylinder of a whole bolt stretching machine, it is characterized in that, described oil cylinder comprises ring body, a plurality of oil pocket and an outside hydraulic fluid port, described a plurality of oil pocket is arranged on described ring body, the quantity of described a plurality of oil pockets is consistent with the quantity of flange bolt, internal series-connection between described a plurality of oil pocket, described outside hydraulic fluid port is connected with described a plurality of oil pockets.
2. oil cylinder according to claim 1, is characterized in that, the internal series-connection between described a plurality of oil pockets is to realize by the oilhole and the auxiliary hole that are arranged on described ring body, and described auxiliary hole is provided with plug, and described plug is in order to seal described auxiliary hole.
3. oil cylinder according to claim 2, it is characterized in that, the both sides of each oil pocket in described a plurality of oil pocket respectively are provided with a described oilhole, the quantity of described auxiliary hole is consistent with the quantity of described a plurality of oil pockets, wherein, the adjacent oilhole of two adjacent oil pockets is connected by described auxiliary hole, and described auxiliary hole is perpendicular to the end face setting of described annular cylinder.
4. oil cylinder according to claim 3, it is characterized in that, the described adjacent oilhole of described two adjacent oil pockets is on the circle center line connecting direction of described two adjacent oil pockets, the inclined oil hole of air that arranges to the fillet center of oil pocket sidewall separately along oil pocket bottom surface separately, the axis of described inclined oil hole of air is θ with the angle of oil pocket bottom surface separately, and 10 °≤θ≤35 °, the midpoint of described two adjacent oil pocket circle center line connectings is arranging described auxiliary hole.
5. whole bolt stretching machine, it is characterized in that, described whole bolt stretching machine comprises the described oil cylinder of claim 1-4 any one claim, also comprise supporting bridge, piston, stretching nut and rapid pipe joint, described oil cylinder below is arranging described supporting bridge, described piston and described stretching nut be a plurality of and with the corresponding setting one by one of described a plurality of oil pockets, described piston is arranged in described oil pocket, described stretching nut is arranged on the top of described piston, and described rapid pipe joint is arranged on described outside oil port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220538525 CN202991689U (en) | 2012-10-19 | 2012-10-19 | Oil cylinder of integral stud tensioner and integral stud tensioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220538525 CN202991689U (en) | 2012-10-19 | 2012-10-19 | Oil cylinder of integral stud tensioner and integral stud tensioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202991689U true CN202991689U (en) | 2013-06-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220538525 Expired - Lifetime CN202991689U (en) | 2012-10-19 | 2012-10-19 | Oil cylinder of integral stud tensioner and integral stud tensioner |
Country Status (1)
| Country | Link |
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| CN (1) | CN202991689U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104625655A (en) * | 2015-02-14 | 2015-05-20 | 杨光华 | Manufacturing method for curved hydraulic channel |
| CN104741911A (en) * | 2013-12-31 | 2015-07-01 | 中核武汉核电运行技术股份有限公司 | Integral tensioning control system for manhole cover bolt of vapor generator |
| CN105033622A (en) * | 2015-06-01 | 2015-11-11 | 北京雷蒙赛博机电技术有限公司 | Supporting ring reducing mechanism for rigid reducing type all-synchronous bolt tensioner |
| CN110202527A (en) * | 2019-06-14 | 2019-09-06 | 南昌矿山机械有限公司 | Single-Cylinder Hydraulic Cone Crusher upper spider attaching/detaching apparatus and method |
-
2012
- 2012-10-19 CN CN 201220538525 patent/CN202991689U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104741911A (en) * | 2013-12-31 | 2015-07-01 | 中核武汉核电运行技术股份有限公司 | Integral tensioning control system for manhole cover bolt of vapor generator |
| CN104625655A (en) * | 2015-02-14 | 2015-05-20 | 杨光华 | Manufacturing method for curved hydraulic channel |
| CN105033622A (en) * | 2015-06-01 | 2015-11-11 | 北京雷蒙赛博机电技术有限公司 | Supporting ring reducing mechanism for rigid reducing type all-synchronous bolt tensioner |
| CN110202527A (en) * | 2019-06-14 | 2019-09-06 | 南昌矿山机械有限公司 | Single-Cylinder Hydraulic Cone Crusher upper spider attaching/detaching apparatus and method |
| CN110202527B (en) * | 2019-06-14 | 2023-06-16 | 南昌矿机集团股份有限公司 | Device and method for disassembling and assembling upper frame of single-cylinder hydraulic cone crusher |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |
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| CX01 | Expiry of patent term |