CN202317726U - Positioning tensioner - Google Patents
Positioning tensioner Download PDFInfo
- Publication number
- CN202317726U CN202317726U CN2011204690262U CN201120469026U CN202317726U CN 202317726 U CN202317726 U CN 202317726U CN 2011204690262 U CN2011204690262 U CN 2011204690262U CN 201120469026 U CN201120469026 U CN 201120469026U CN 202317726 U CN202317726 U CN 202317726U
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- tightening piece
- bolt
- hole
- tensioning device
- valve body
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Abstract
The utility model relates to the technical field of processing engineering, in particular to a positioning tensioner. The positioning tensioner comprises a first tensioning block (1), a second tensioning block (2) and a bolt (3), wherein the first tensioning block (1) is matched with the second tensioning block (2) through a wedge-shaped inclined surface to form an integrated tensioning block; a through hole (7) is formed in the first tensioning block; the diameter of the through hole (7) is more than the circumferential diameter of the bolt (3); and the bolt (3) passes through the through hole (7) and is matched with the screw thread in the second tensioning block (2). The positioning tensioner is applied to a large-scale ball valve integrated processing technology, solves the problem of difficulty in positioning a valve and a valve body in the large-scale ball valve integrated processing process, is simple to operate and provides feasibility for manufacturing of the integrated ball valve.
Description
Technical field
The utility model relates to the processing engineering technology field, particularly a kind of locating tensioning device.
Background technology
The method that adopts when processing ball valve body and valve at present is; Technology is located steel bushing packs between curtain shaft and the valve body axis hole; Relative position with fixed valve body and valve; And reduce valve and the change of valve body relative position in the whole process of ball valve as far as possible, guarantee curtain shaft and valve body hole axiality and seal request.
Before the weldering of ball valve dress, adopt the location steel bushing to carry out coarse positioning, be convenient to ball valve displacement welding.The fit clearance of location steel bushing and valve body and valve is about 0.5mm.Before the ball valve annealing, weldering " L " type fixed block at both sides sealing face place, annealing back fine finishining curtain shaft and valve body hole.Join car location steel bushing according to curtain shaft, valve body hole size, the good location steel bushing of will joining car pack into curtain shaft and valve body hole, fixing.In the case, the facial position of processing both sides sealing.
It is excessive that the positioning sleeve steel is joined the crack, workshop after the fine finishining, do not reach positioning requirements; It is too small to join the crack, workshop, and assembling and dismounting are all very difficult, even damage curtain shaft and valve body surface.So have the gap all the time between location steel bushing and valve, the valve body; This gap can't be eliminated; Thereby cause curtain shaft and valve body hole misalignment of axe bigger, directly influence the rotation flexibility and the sealing effectiveness of ball valve, the situation of can normally opening, close and leak when concerning ball valve work.
It is the key point of large-scale ball valve manufacturing processing that valve body and valve integral body are processed, and also is a difficult point.
The utility model content
The purpose of the utility model is: to the problems referred to above of prior art existence; A kind of locating tensioning device that solves valve and a valve body location difficult problem in the whole process of large-scale ball valve is provided, and this locating tensioning device is applicable to that simultaneously other axialities have the device fabrication of strict demand to assemble.
To achieve these goals, the technical scheme of the utility model employing is:
A kind of locating tensioning device; Comprise first tightening piece, second tightening piece, bolt; Cooperate formation one tightening piece whole with the wedge shape inclined-plane between said first tightening piece, second tightening piece, the said first tightening piece set inside has through hole, and the diameter of through hole is greater than the bolt circle diameter; When regulating the screwing length of bolt; First tightening piece and second tightening piece can move on the wedge shape inclined-plane each other, screw thread that second tightening piece is inner and the threads engaged on the bolt, and bolt passes through hole and connects second tightening piece.
As the preferred version of the utility model, between the head of bolt and first tightening piece, be provided with packing ring.
As the preferred version of the utility model, contiguous first tightening piece part also is provided with through hole in second tightening piece, and through-hole diameter is greater than the diameter of bolt.
As the preferred version of the utility model, said wedge shape inclined-plane is horizontal by 50 ° of angles.
The locating tensioning device of the utility model is applicable to that the process and assemble axiality has the device of strict demand.Through regulating the bolt on the locating tensioning device; Promptly regulate the screwing length of bolt; Can make the motion each other within the specific limits on the wedge shape inclined-plane of first tightening piece and second tightening piece, thereby change the distance between interior circular arc of locating tensioning device and the external arc, reach the purpose in the gap between tensioner two assembly wares; Make two assembly wares be fixed on relative position, thereby guarantee the requirement of axiality between two assembly wares.
In sum, owing to adopted technique scheme, the beneficial effect of the utility model is:
1, the locating tensioning device of the utility model is applicable to that the process and assemble axiality has the device of strict demand.Regulate the screwing length of bolt; Can make the motion each other within the specific limits on the wedge shape inclined-plane of first tightening piece and second tightening piece; Thereby change the distance between interior circular arc of locating tensioning device and the external arc; Reach the gap between tensioner two assembly wares, make two assembly wares be fixed on relative position, can guarantee axiality tolerance between two assembly wares accurately.Be applied to the whole process technology of large-scale ball valve, solved the difficult problem of valve and valve body location in the whole process of large-scale ball valve, and simple to operate, for the whole manufacturing of ball valve provides feasibility.
2, the locating tensioning device manufacturing of the utility model is simple, with low cost, and very high using value is arranged.
Description of drawings
Fig. 1 is the cutaway view of the utility model.
Fig. 2 is last, the mutual post exercise cutaway view of second tightening piece of the utility model.
Fig. 3 is the contour structures sketch map of the utility model.
Mark among the figure: 1-first tightening piece, 2-second tightening piece, 3-bolt, circular arc in the 4-packing ring, 5-, 6-external arc, 7-through hole.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is done detailed explanation.
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
As shown in Figure 1, a kind of locating tensioning device comprises first tightening piece 1, second tightening piece 2, bolt 3 and packing ring 4; Cooperate with the wedge shape inclined-plane between said first tightening piece 1, second tightening piece 2 that to form a tightening piece whole; Said wedge shape inclined-plane is horizontal by 50 ° of angles, first tightening piece, 1 inside, and second tightening piece 2 in contiguous first tightening piece, 1 parts be provided with through hole 7, through hole 7 diameters are greater than bolt 3 circle diameters; When regulating the screwing length of bolt 3; First tightening piece 1 and second tightening piece 2 can move on the wedge shape inclined-plane each other, the screw thread of second tightening piece, 2 inside and the threads engaged of bolt 3, and packing ring 4 is arranged between the head and first tightening piece 1 of bolt 3; Bolt 3 passes through hole 7 and inserts tightening piece inside; Be screwed on first tightening piece 1 and second tightening piece 2, first tightening piece 1 and second tightening piece 2 are to process with the Q235A material, and bolt 3 is No. 45 forged steel material.
The locating tensioning device of the utility model is applicable to that the process and assemble axiality has the device of strict demand.Through regulating the bolt 3 on the locating tensioning device; Promptly regulate the screwing length of bolt 3; Can make the motion each other within the specific limits on the wedge shape inclined-plane of first tightening piece 1 and second tightening piece 2, thereby change the distance between interior circular arc 5 of locating tensioning device and the external arc 6, reach the purpose in gap between tensioner two assembly wares; Make two assembly wares be fixed on relative position, thereby guarantee the requirement of axiality between two assembly wares.
For example the locating tensioning device with the utility model is used for the process and assemble between large-scale ball valve body and the valve, and its special practical value is arranged.Concrete operations are following:
(1) confirms the size of circular arc in the locating tensioning device 5 and external arc 6 according to the distance between the ball valve curtain shaft face of cylinder and the valve body axis hole face of cylinder; Make under the situation of first tightening piece 1,2 alignment of second tightening piece; Between the distance of interior circular arc 5, external arc 6 and curtain shaft and the valve body apart from approximately equal (distance of interior circular arc 5, external arc 6 is smaller), combine the front to describe processing locating tensioning device again.
(2) treat that curtain shaft and valve body axis hole machine after, set a tensioner device.Ball valve body two ends 8 the locating tensioning devices of respectively packing into; Be uniformly distributed between curtain shaft and the valve body; Locating tensioning device inner cylinder face (being inner surface) cooperates with the curtain shaft face of cylinder, and locating tensioning device external cylindrical surface (being outer surface) cooperates with the valve body axis hole face of cylinder.With the spanner bolt 3 of screwing, the locating tensioning device is not fallen down or rotate around curtain shaft.
(3), and note down with everywhere distance between the corresponding inside micrometer symmetrical measurement curtain shaft face of cylinder and the valve body axis hole face of cylinder.Further regulate the bolt on the locating tensioning device according to measurement result; Promptly regulate the screwing length of bolt 3; Make the motion each other within the specific limits on the wedge shape inclined-plane of first tightening piece 1 and second tightening piece 2, change the distance between interior circular arc 5 of locating tensioning device and the external arc 6, the gap between tensioner curtain shaft and the valve body axis hole; After the tensioner; With the distance between the inside micrometer check curtain shaft face of cylinder and the valve body axis hole face of cylinder, guarantee symmetry equivalently, allowable error is in the 0.02-0.05mm scope.Constantly check, regulate bolt 3, until qualified, promptly the distance difference between the curtain shaft face of cylinder and the valve body axis hole face of cylinder in the 0.02-0.05mm scope, thereby fixedly valve and valve body relative position, the axiality between assurance valve and the valve body meets the demands.
(4) after the axiality between valve and the valve body meets the demands, other positions of processing ball valve.In the process, regularly check the distance between curtain shaft and the valve body axis hole, according to circumstances regulate bolt 3.After ball valve integral body machines, remove the locating tensioning device.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (4)
1. locating tensioning device; It is characterized in that; This locating tensioning device comprises first tightening piece (1), second tightening piece (2), bolt (3), cooperates the formation tightening piece whole with the wedge shape inclined-plane between said first tightening piece (1), second tightening piece (2), and the first tightening piece set inside has through hole (7); The diameter of through hole (7) is greater than bolt (3) circle diameter, and bolt (3) passes through hole (7) threads engaged inner with second tightening piece (2).
2. locating tensioning device according to claim 1 is characterized in that, between the head of bolt (3) and first tightening piece (1), is provided with packing ring (4).
3. locating tensioning device according to claim 2 is characterized in that, contiguous first tightening piece (1) part also is provided with through hole (7) in second tightening piece (2), and through hole (7) diameter is greater than the diameter of bolt (3).
4. locating tensioning device according to claim 3 is characterized in that, said wedge shape inclined-plane is horizontal by 50 ° of angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204690262U CN202317726U (en) | 2011-11-23 | 2011-11-23 | Positioning tensioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204690262U CN202317726U (en) | 2011-11-23 | 2011-11-23 | Positioning tensioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202317726U true CN202317726U (en) | 2012-07-11 |
Family
ID=46429723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204690262U Expired - Lifetime CN202317726U (en) | 2011-11-23 | 2011-11-23 | Positioning tensioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202317726U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072019A (en) * | 2013-01-11 | 2013-05-01 | 吴忠仪表有限责任公司 | Internally-supported gapless spool mandrel for V-shaped ball valve |
| CN108067905A (en) * | 2017-12-29 | 2018-05-25 | 苏州洲洋精密机械科技有限公司 | A kind of notch twists torque Special Fixture for Machining |
| CN111622660A (en) * | 2020-05-13 | 2020-09-04 | 深圳市罗拉智能科技有限公司 | Three-roller gate structure |
-
2011
- 2011-11-23 CN CN2011204690262U patent/CN202317726U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072019A (en) * | 2013-01-11 | 2013-05-01 | 吴忠仪表有限责任公司 | Internally-supported gapless spool mandrel for V-shaped ball valve |
| CN103072019B (en) * | 2013-01-11 | 2015-06-17 | 吴忠仪表有限责任公司 | Internally-supported gapless spool mandrel for V-shaped ball valve |
| CN108067905A (en) * | 2017-12-29 | 2018-05-25 | 苏州洲洋精密机械科技有限公司 | A kind of notch twists torque Special Fixture for Machining |
| CN111622660A (en) * | 2020-05-13 | 2020-09-04 | 深圳市罗拉智能科技有限公司 | Three-roller gate structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |
|
| CX01 | Expiry of patent term |