CN220933768U - Center positioning device for sleeve of penetrating piece - Google Patents
Center positioning device for sleeve of penetrating piece Download PDFInfo
- Publication number
- CN220933768U CN220933768U CN202322531132.4U CN202322531132U CN220933768U CN 220933768 U CN220933768 U CN 220933768U CN 202322531132 U CN202322531132 U CN 202322531132U CN 220933768 U CN220933768 U CN 220933768U
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- Prior art keywords
- circular ring
- ring
- sleeve
- connecting pieces
- centering
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- 230000000149 penetrating effect Effects 0.000 title claims abstract description 18
- 210000000078 claw Anatomy 0.000 claims abstract description 30
- 230000035515 penetration Effects 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000002783 friction material Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 2
- 239000002023 wood Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model belongs to the technical field of nuclear power civil engineering installation, and particularly relates to a center positioning device of a penetrating member sleeve, which comprises the following components: the device comprises an upper circular ring, a lower circular ring, a connecting piece, a claw and an extension spring; the upper ring and the lower ring are coaxially arranged, and a round hole is formed in the center of the upper ring; the plurality of extension springs are arranged at the positions of the upper ring and the lower ring which are symmetrical with each other at equal intervals, and two ends of each extension spring are respectively connected with two ends of the upper ring and two ends of the lower ring which are opposite to each other in the inner direction; the clamping claws and the connecting pieces are arranged on the upper surface of the upper circular ring at equal intervals, the top ends of the connecting pieces are connected with the upper parts of the clamping claws, the top ends of the clamping claws are connected to the upper circular ring, and the tail ends of the connecting pieces are connected to the lower circular ring and move along sliding grooves on the upper circular ring; the number of the extension springs, the clamping claws and the connecting pieces is the same. The device provided by the utility model has the advantages of simple structure, simplicity and convenience in operation, suitability for sleeves with various different calibers and capability of effectively improving the working efficiency.
Description
Technical Field
The utility model belongs to the technical field of nuclear power civil engineering installation, and particularly relates to a center positioning device for a sleeve of a penetrating piece.
Background
The Zhangzhou nuclear power adopts a Hualong first pressurized water reactor nuclear power technology, a nuclear island factory building is an inner-outer double-layer containment, a penetrating piece penetrating through an inner shell and a corresponding sleeve are arranged on the containment, in the construction of the penetrating piece sleeve, in order to adjust the coaxiality of the inner sleeve and the outer sleeve, a wood disc with the same inner diameter as the sleeve needs to be manufactured in the traditional method, then a hole is drilled in the center of the wood disc, the wood disc is arranged at the inner opening and the outer opening of the penetrating piece sleeve, and after a thin wire penetrates through the centers of the four wood discs, the coaxiality is guaranteed to meet the requirement. The traditional construction method is complex in operation, inconvenient to locate the centers of sleeves with different diameters, large in error, time-consuming and labor-consuming.
Disclosure of utility model
The utility model aims to provide a center positioning device for a sleeve of a penetrating piece, which has a simple structure, is easy and convenient to operate, is suitable for sleeves with various calibers, and can effectively improve the working efficiency.
The technical scheme for realizing the purpose of the utility model comprises the following steps:
A penetration sleeve centering device, the device comprising: the device comprises an upper circular ring, a lower circular ring, a connecting piece, a claw and an extension spring; the upper ring and the lower ring are coaxially arranged, and a round hole is formed in the center of the upper ring; the plurality of extension springs are arranged at the positions of the upper ring and the lower ring which are symmetrical with each other at equal intervals, and two ends of each extension spring are respectively connected with two ends of the upper ring and two ends of the lower ring which are opposite to each other in the inner direction; the clamping claws and the connecting pieces are arranged on the upper surface of the upper circular ring at equal intervals, the top ends of the connecting pieces are connected with the upper parts of the clamping claws, the top ends of the clamping claws are connected to the upper circular ring, and the tail ends of the connecting pieces are connected to the lower circular ring and move along sliding grooves on the upper circular ring; the number of the extension springs, the clamping claws and the connecting pieces is the same.
The top of jack catch is connected through the cooperation of first bolt and first nut, fastening connection on last ring.
The tail end of the connecting piece is connected with the second nut in a matched mode through the second bolt and is fixedly connected to the lower circular ring, and the tail end of the connecting piece moves along a sliding groove on the upper circular ring through the second bolt.
The top end of the connecting piece is connected with the upper part of the claw through the matching connection of the connecting shaft and the third nut.
The number of the extension springs, the clamping claws and the connecting pieces is three.
When the clamping jaw is in an open state relative to the upper circular ring, the stretching spring is in a normal state or a stretching state.
The length of the sliding groove is the difference between the maximum length of the stretching spring in the stretching state and the length of the stretching spring in the normal state.
The tail end of the claw is fixedly connected with a cylinder.
The cylinder is made of a material with high friction.
The beneficial technical effects of the utility model are as follows:
1. The center positioning device for the penetrating piece sleeve is fixed through the purely mechanical design, is simple in structure, convenient to process and manufacture, light in weight and convenient to carry, and can be made of conventional materials and standard pieces.
2. The center positioning device for the sleeve of the penetrating piece provided by the utility model can finish the center positioning of the sleeve by automatically opening the clamping jaw through the tension spring, is simple to operate, and avoids larger workload and measurement errors caused by the traditional mode of manufacturing a wood disc to perform sleeve center positioning.
3. The center positioning device for the sleeve of the penetrating piece can be simultaneously applied to sleeves with different calibers, and the working efficiency is greatly improved.
Drawings
FIG. 1 is an exploded view of a center positioning device for a penetration sleeve according to the present utility model;
FIG. 2 is an assembly view of a center positioning device for a penetration sleeve according to the present utility model;
FIG. 3 is a diagram showing the open state of the jaws in a center positioning device for a through-penetration sleeve according to the present utility model;
FIG. 4 is a schematic view of the center positioning device of the through-penetration sleeve according to the present utility model;
Fig. 5 is an enlarged view of a claw structure in a center positioning device of a penetration piece sleeve according to the present utility model.
In the figure: 1-an upper circular ring; 2-a lower ring; 3-connectors; 4-clamping jaws; 5-stretching a spring; 6-a first bolt; 7-a first nut; 8-connecting shafts; 9-a second bolt; 10-lower nut; 11-a third nut; 12-through sleeve.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples.
As shown in fig. 1 to 5, the present utility model provides a center positioning device for a sleeve of a penetration piece, including: the device comprises an upper circular ring 1, a lower circular ring 2, a connecting piece 3, a claw 4, an extension spring 5, a first bolt 6, a first nut 7, a connecting shaft 8, a second bolt 9, a second nut 10 and a third nut 11.
The upper ring 1 and the lower ring 2 are coaxially arranged, the outer diameter of the upper ring 1 is the same as the outer diameter of the lower ring 2, and the inner diameter of the upper ring 1 is the same as the inner diameter of the lower ring 2. The center of the upper circular ring 1 is provided with a round hole, and after the clamping jaw 4 clamps the sleeve, the round hole at the center of the upper circular ring 1 is the center of the sleeve.
The inside equidistant three upper grooves that are equipped with of upper ring 1, the inside equidistant three lower grooves that are equipped with of lower ring 2, upper groove and lower groove position are corresponding, and upper groove and lower groove length are the same. An upper groove and a lower groove form a groove unit, and three groove units are arranged at equal intervals.
And one end of the extension spring 5 is hooked at one end of the upper groove in the upper ring 1, the other end of the extension spring 5 is hooked at the other end of the lower groove in the lower ring 2, and one end of the upper groove and the other end of the lower groove are opposite ends in the groove unit. The upper ring 1 and the lower ring 2 are driven to move in opposite directions by the extension springs 5 hooked on the upper ring 1 and the lower ring 2.
The device according to the utility model further comprises three sets of connection assemblies, each set comprising a connection piece 3 and a claw 4. The top of connecting piece 3 is connected through connecting axle 8 with the upper portion of jack catch 4, and third nut 11 and connecting axle 8 assorted, and on connecting axle 8 was located to the third nut 11 cover, through the matching connection of connecting axle 8 and third nut 11 for connecting piece 3 and jack catch 4 rotatable coupling.
The three clamping claws 4 are arranged on the upper surface of the upper circular ring 1 at equal intervals, and the upper circular ring 1 is provided with three first through holes at equal intervals. The first bolt 6 passes through the top end of one claw 4 and a first through hole, and the top end of the claw 4 is connected with the first through hole through the first bolt 6; the first nut 7 is matched with the first bolt 6, the first nut 7 is sleeved on the first bolt 6, the first nut 7 is screwed on the first bolt 6, and the clamping jaw 4 is tightly connected with the upper circular ring 1.
The three connecting pieces 3 are arranged on the upper surface of the upper circular ring 1 at equal intervals, the upper circular ring 1 is provided with three through sliding grooves at equal intervals, the lower circular ring 2 is provided with three second through holes at equal intervals, and the positions of the second through holes correspond to the positions of the sliding grooves. The second bolt 9 passes through the tail end of the connecting piece 3, the sliding groove and the second through hole, the tail end of the connecting piece 3 is connected with the second through hole through the second bolt 9, and the tail end of the connecting piece 3 can move along the sliding groove through the second bolt 9; the second nut 10 is matched with the second bolt 9, the second nut 10 is positioned on the lower surface of the lower circular ring 2 and sleeved on the second bolt 9, the second nut 10 is screwed on the second bolt 9, and meanwhile, threads matched with the second bolt 9 are arranged on the second through hole, so that the connecting piece 3 is fastened and connected with the lower circular ring 2.
The relative position between the first through hole on the upper ring 1 and the corresponding runner is such as to ensure that the jaws 4 can be opened and retracted relative to the upper ring 1 and the lower ring 2 by cooperation with the connecting piece 3.
Preferably, the tension spring 5 is in a normal state or a stretched state when the jaws 4 are in an open state with respect to the upper ring 1 and the lower ring 2.
Preferably, the length of the chute is the difference between the maximum length of the tension spring 5 in the tension state and the length in the normal state.
Preferably, the tail end of the claw 4 is welded with a cylinder made of a material with high friction, and the cylinder can clamp the inner wall of the sleeve.
The utility model provides a working principle of a center positioning device for a sleeve of a penetrating piece, which comprises the following specific steps:
The device comprises an upper circular ring 1 and a lower circular ring 2 which are coaxially arranged and are attached up and down, wherein the upper circular ring 1 and the lower circular ring 2 are restrained through the assembly relation among a claw 4, a connecting piece 3 and a connecting shaft 8. After the extension spring 5 is connected with the upper ring 1 and the lower ring 2, the upper ring 1 and the lower ring 2 move in opposite directions under the action of the extension spring 5, and the claw 4 and the connecting piece 3 are driven to move through the opposite directions of the upper ring 1 and the lower ring 2, so that the three claws 4 are simultaneously opened, the plane where the three claws 4 are determined to be positioned coincides with the cross section of the sleeve until the claw 4 clamps the inner wall of the sleeve of the penetrating piece, and then the movement is stopped, and the center of the upper ring 1 is the center of the sleeve of the penetrating piece. The claw 4 of the device is clamped on the inner wall of the sleeve of the penetrating piece, so that the center of the sleeve of the penetrating piece is positioned.
The track during the opening of the jaws 4 can be adapted to sleeves of different inner diameters.
The present utility model has been described in detail with reference to the drawings and the embodiments, but the present utility model is not limited to the embodiments described above, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model. The utility model may be practiced otherwise than as specifically described.
Claims (9)
1. A penetration sleeve centering device, the device comprising: the device comprises an upper circular ring (1), a lower circular ring (2), a connecting piece (3), a claw (4) and an extension spring (5); the upper circular ring (1) and the lower circular ring (2) are coaxially arranged, and a round hole is formed in the center of the upper circular ring (1); the plurality of extension springs (5) are arranged at the positions which are symmetrical to each other in the upper circular ring (1) and the lower circular ring (2) at equal intervals, and two ends of each extension spring (5) are respectively connected with two ends of the upper circular ring (1) opposite to the inner direction of the lower circular ring (2); the clamping jaws (4) and the connecting pieces (3) are arranged on the upper surface of the upper circular ring (1) at equal intervals, the top ends of the connecting pieces (3) are connected with the upper parts of the clamping jaws (4), the top ends of the clamping jaws (4) are connected to the upper circular ring (1), and the tail ends of the connecting pieces (3) are connected to the lower circular ring (2) and move along sliding grooves on the upper circular ring (1); the number of the extension springs (5), the clamping claws (4) and the connecting pieces (3) is the same.
2. A device for centering a sleeve of a penetration piece according to claim 1, characterized in that the top end of the claw (4) is fastened to the upper ring (1) by means of a first bolt (6) in co-operation with a first nut (7).
3. A centre positioning device for a sleeve of a penetrating member according to claim 1, wherein the tail end of the connecting member (3) is connected with the second nut (10) by the second bolt (9) in a matching manner, and is fastened to the lower ring (2), and the tail end of the connecting member (3) moves along the chute on the upper ring (1) by the second bolt (9).
4. A device for centering a bushing of a through-going member according to claim 1, characterized in that the top end of the connecting member (3) is connected to the upper part of the claw (4) by means of a coupling shaft (8) in co-operation with a third nut (11).
5. The through piece sleeve center positioning device according to claim 1, wherein the number of the extension springs (5), the clamping jaws (4) and the connecting pieces (3) is three.
6. A device for centering a penetration sleeve according to claim 1, characterized in that the tension spring (5) is in a normal or stretched state when the jaws (4) are in an open state with respect to the upper ring (1).
7. A device for centering a penetration sleeve according to claim 1, characterized in that the length of the chute is the difference between the maximum length of the tension spring (5) in the stretched state and the length in the normal state.
8. A device for centering a sleeve of a penetration piece according to claim 1, characterized in that the tail end of the jaw (4) is fixedly connected with a cylinder.
9. The through-penetration sleeve centering device of claim 8 wherein said cylinder is made of a high friction material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322531132.4U CN220933768U (en) | 2023-09-18 | 2023-09-18 | Center positioning device for sleeve of penetrating piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322531132.4U CN220933768U (en) | 2023-09-18 | 2023-09-18 | Center positioning device for sleeve of penetrating piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220933768U true CN220933768U (en) | 2024-05-10 |
Family
ID=90933225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322531132.4U Active CN220933768U (en) | 2023-09-18 | 2023-09-18 | Center positioning device for sleeve of penetrating piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220933768U (en) |
-
2023
- 2023-09-18 CN CN202322531132.4U patent/CN220933768U/en active Active
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