CN214889542U - Flange group is to controlling means during screw is striden - Google Patents
Flange group is to controlling means during screw is striden Download PDFInfo
- Publication number
- CN214889542U CN214889542U CN202121032880.2U CN202121032880U CN214889542U CN 214889542 U CN214889542 U CN 214889542U CN 202121032880 U CN202121032880 U CN 202121032880U CN 214889542 U CN214889542 U CN 214889542U
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- flange
- connecting stud
- span
- circular tube
- sliding block
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Abstract
The utility model relates to a flange group is to screw controlling means mid-span for a manufacturing flange group of connecting pipe is to screw mid-span control tool. A sliding block with a connecting stud at one end is sleeved into a cylindrical sliding rod with a horizontal bead embedded in the middle, the two connecting studs respectively penetrate through two symmetrically arranged screw holes, fixing nuts are locked, and the axis coincidence of the connecting studs, the screw holes and the centering cone is completed through the centering cone. And observing the position of bubbles in the horizontal bead on the slide bar, and adjusting to ensure that the bubbles are positioned in the center, thereby realizing the midspan arrangement of the flange bolt holes. The device is not limited by the inclination angle of the flange surface, is suitable for cross-center control of screw holes in any direction, and has the characteristics of simple structure, convenience in assembly, compact structure and wide application range.
Description
Technical Field
The utility model relates to a chemical industry equipment group specifically is a flange group is to screw controlling means mid-span to the connection technology.
Background
In chemical production, flanges with different specifications and different materials can be involved no matter the arrangement of process pipelines or the manufacture of chemical equipment. In equipment manufacturing, a large number of flange connecting pipes are assembled, and the subsequent connection with the field pipeline flange is directly influenced by the accuracy of the assembly. Wherein the most main problem is exactly the flange is connected with the pipeline, and the bolt hole stride the well problem, stride the well bolt hole along vertical direction axisymmetric arrangement on requiring the flange promptly, in case pipeline flange or equipment nozzle flange bolt hole stride the well degree not high enough cause the two cooperation not, must lead to the fact reworking, influence the production progress, cause economic loss. Especially for the equipment of reprocessing, changing, it is higher to the requirement in bolt hole span. Therefore, a tool is needed to control the centering of the flange bolt holes when the flange on the pipeline is paired with the pipeline and the flange connecting pipe on the equipment is paired with the shell, so that the span-in precision of the flange bolt holes is improved, the problem of equipment installation is reduced, the economic loss is reduced, and the labor benefit is improved.
Disclosure of Invention
The utility model provides a flange group is to screw controlling means mid-span, and the device can stride the degree to the flange bolt hole when the group is taken over to the flange and control, and the control of mid-span to the bolt hole when can satisfying the different inclination of flange face of takeover simultaneously.
The utility model discloses an adopt following technical scheme to realize: a span-in control device for a screw hole of a flange assembly comprises a slide bar and a pair of slide blocks, wherein a horizontal bead is embedded in the middle of the slide bar; a hole is formed in the center of the sliding block, the sliding rod is movably sleeved with the hole, a connecting stud is fixedly arranged on one surface of the sliding block, and the axial direction of the connecting stud is vertical to the axial direction of the sliding rod; a threaded through hole is processed on the sliding block at a position opposite to the connecting stud, and the threaded through hole is provided with a fixing bolt for locking the sliding rod; each connecting stud is movably sleeved with a pair of centering cones, each centering cone consists of a circular tube capable of sliding along the connecting stud and at least two triangular fracture plates which are wound at equal intervals and are arranged on the outer wall of the circular tube; in the direction along the axis of the circular tube, one side of the triangular breaking plate is aligned with the tail end of the circular tube, and one small end of the triangular breaking plate exceeds the front end of the circular tube; the front ends of a pair of centering cones on each connecting stud are opposite, and one end of each connecting stud, which is far away from the sliding block, is sleeved with a locking nut.
When the centering device is used, the two sliding blocks are sleeved into the sliding rod, the centering cones with outward tips are sleeved on the two sliding block connecting studs respectively, then the two sliding block connecting studs penetrate through any two symmetrically arranged screw holes in the flange, the other two centering cones are sleeved with the small ends of the two sliding block connecting studs facing the flange, and the locking nuts are screwed down to enable the small ends of the two pairs of centering cones on the connecting studs to enter the flange bolt holes, so that the axes of the connecting studs, the centering cones and the flange bolt holes are overlapped. Then the fixing nut is screwed down to fix the slide rod and the slide block. And observing the position of bubbles in the horizontal bead on the slide bar, and adjusting the flange to enable the bubbles to be positioned in the center, so that the span-center arrangement of the flange bolt holes is realized.
Use flange group to screw control device during striding, closely fixed as an organic whole with the flange, do not receive flange face inclination restriction, be applicable to the ascending screw of arbitrary side and stride well control, have simple structure, equipment convenience, compact structure, the wide characteristics of application range.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, 1-slide bar, 2-slide block, 3-centering cone and 6-horizontal bead.
Fig. 2 is a schematic side view of the device of the present invention connected to a flange screw hole.
In the figure, 4-lock nut, 5-fixing bolt.
FIG. 3 is a schematic diagram of a slider structure, in which 7-square structure and 8-connecting stud are shown.
Fig. 4 is a schematic structural diagram of a centering cone in a front view, and in the diagram, 9-round tubes.
Fig. 5 is a schematic structural diagram of a centering cone in a front view, and in the diagram, a 10-triangular rupture plate is shown.
Detailed Description
In order to make the present invention better understood by those skilled in the art, the present invention will be further clearly and completely described below with reference to the accompanying drawings.
The utility model discloses flange group is to screw controlling means mainly by mid-span: the sliding rod 1, the sliding block 2, the centering cone 3, the locking nut 4 and the fixing bolt 5. The slide bar 1 is a cylindrical material with a horizontal bead 6 embedded in the middle. The sliding block 2 is a block structure 7, a central processing round hole can be sleeved in the sliding rod 1, one surface of the sliding block 2 is fixedly provided with a connecting stud 8, and a threaded through hole (a communication round hole) matched with the fixing bolt 5 is processed opposite to the connecting stud 8. The centering cone 3 is formed by uniformly distributing three triangular gradient plates 10 on the circumference of a round pipe 9 with the inner diameter slightly larger than that of the connecting stud 8 (the three triangular gradient plates can well realize the coincidence of the axes of the connecting stud 8 and the centering cone 3 with the bolt hole of the flange).
As a preferred technical scheme, in order to enlarge the general range of the device, the diameter range covered by the gradient between the small end and the large end of the centering cone 3 should contain the diameter range of the bolt holes as many as possible so as to improve the universality of the centering cone, and the centering cone is suitable for the flange pairing conditions of the bolt holes with different specifications. The gap between the upper circular tube 9 of the centering cone and the screw of the connecting stud 8 is controlled to be 0.5-1 mm, so that the accuracy of the device is improved.
When the device is used, the two sliding blocks 2 are sleeved into the sliding rod 1, the centering cones 3 with small ends facing outwards are sleeved on the two sliding block connecting studs 8 respectively, then the two sliding block connecting studs 8 penetrate through any two symmetrically arranged screw holes in the flange, the other two centering cones 3 are sleeved with the small ends facing the flange, the locking nuts 4 are screwed, the small ends of the two pairs of centering cones 3 on the connecting studs 8 enter the flange bolt holes, and the axial coincidence of the connecting studs 8, the centering cones 3 and the flange bolt holes is realized. And screwing the locking nut 4 to fix the sliding rod 1 and the sliding block 2. The position of the air bubble in the horizontal bead 6 on the slide bar 1 is observed, the flange is adjusted to enable the air bubble to be located in the center, the span-center arrangement of the flange bolt hole is achieved, and whether the flange position installation is accurate (whether the span-center meets the requirement) can be monitored accurately until the position of the flange is adjusted in place.
As shown in fig. 4 and 5, the triangular rupture plate 10 is a right-angled triangle, one right-angled edge is flush with the rear end of the circular tube 9, the other right-angled edge is welded with the outer wall of the circular tube 9, and one acute angle exceeds the front end of the circular tube 9.
All parts of the device are detachable parts, the structure is simple, the installation is convenient, the requirement for arrangement in the span of the control flange screw hole can be effectively met, the problem of equipment installation is reduced, the economic loss is reduced, the labor benefit is improved, and the product quality is improved.
Claims (5)
1. A span-in control device for a screw hole of a flange group is characterized by comprising a slide bar (1) and a pair of slide blocks (2), wherein a horizontal bead (6) is embedded in the middle of the slide bar (1); a hole is formed in the center of the sliding block (2) and movably sleeved in the sliding rod (1), a connecting stud (8) is fixedly arranged on one surface of the sliding block (2), and the axial direction of the connecting stud (8) is vertical to the axial direction of the sliding rod (1); a threaded through hole is processed on the slide block (2) at a position opposite to the connecting stud (8), and the threaded through hole is matched with a fixing bolt (5) for locking the slide rod (1); each connecting stud (8) is movably sleeved with a pair of centering cones (3), each centering cone (3) consists of a circular tube (9) capable of sliding along the connecting stud (8) and at least two triangular fracture plates (10) which are wound at equal intervals and are arranged on the outer wall of the circular tube (9); in the direction along the axis of the round pipe (9), one side of the triangular breaking plate (10) is aligned with the tail end of the round pipe (9), and one small end of the triangular breaking plate (10) exceeds the front end of the round pipe (9); the front ends of a pair of centering cones (3) on each connecting stud (8) are opposite, and one end of each connecting stud (8) far away from the sliding block (2) is sleeved with a locking nut (4).
2. A device for controlling the span of a screw hole by a pair of flanges according to claim 1, wherein the slide rod (1) is of cylindrical configuration; the sliding block (2) is a block structure (7), and a round hole which can be sleeved into the sliding rod (1) is machined in the center of the sliding block.
3. A control device for span between screw holes of a flange assembly according to claim 1 or 2, wherein the screw clearance between the circular tube (9) and the connecting stud (8) is controlled to be 0.5-1 mm.
4. A flange pair pitch control device as claimed in claim 1 or 2, wherein there are three triangular rupture plates (10) on each centering cone (3).
5. A flange assembly screw hole span control device according to claim 1 or 2, characterized in that the triangular rupture plate (10) is a right triangle, one of which is flush with the rear end of the circular tube (9), and the other of which is welded to the outer wall of the circular tube (9), wherein an acute angle exceeds the front end of the circular tube (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121032880.2U CN214889542U (en) | 2021-05-14 | 2021-05-14 | Flange group is to controlling means during screw is striden |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121032880.2U CN214889542U (en) | 2021-05-14 | 2021-05-14 | Flange group is to controlling means during screw is striden |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214889542U true CN214889542U (en) | 2021-11-26 |
Family
ID=78944806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121032880.2U Active CN214889542U (en) | 2021-05-14 | 2021-05-14 | Flange group is to controlling means during screw is striden |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214889542U (en) |
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2021
- 2021-05-14 CN CN202121032880.2U patent/CN214889542U/en active Active
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