CN218225378U

CN218225378U - Suction catheter mounting tool

Info

Publication number: CN218225378U
Application number: CN202221635463.1U
Authority: CN
Inventors: 刘光虎; 魏振坡; 刘子铭; 李清
Original assignee: Zhonglian Hengtong Machinery Co Ltd
Current assignee: Zhonglian Hengtong Machinery Co Ltd
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2023-01-06
Anticipated expiration: 2032-06-27

Abstract

The utility model provides a suction catheter mounting tool. The suction guide pipe mounting tool comprises a worm gear lead screw lifter, a first mounting support, an inner pipe assembly, a support frame, a platform assembly, a rotating assembly and a second mounting support for placing a suction guide pipe; the supporting frame is provided with a plurality of through holes for being sleeved with the main pump core package jacking device; the first mounting support is connected with the support frame and the worm screw lifter; the inner pipe assembly is sleeved in the first mounting support and the support frame in a telescopic mode, the upper end of the worm gear lead screw lifter is in driving connection with the lower end of the inner pipe assembly, and the upper end of the inner pipe assembly is connected with the platform assembly; the second mounting support is connected to the upper end of the platform assembly through the rotating assembly; the rotating assembly can drive the second mounting support to rotate, and the center line of the rotation is coincident with the axis line of the platform assembly. The utility model discloses the installation of giving the suction catheter brings very big convenience.

Description

Suction catheter mounting tool

Technical Field

The utility model relates to a nuclear power main pump installation technical field especially relates to a suction catheter mounting tool.

Background

A nuclear island reactor coolant pump (a main pump for short) of a nuclear power station comprises a suction guide pipe, a water conservancy component, a main flange, a pump shell main bolt and the like.

The main pump is one of most core devices of the nuclear power reactor and plays a role in ensuring safe operation of the nuclear reactor. In the installation of the various components of the main pump, the suction duct and the motor support are most difficult to install due to the heavy weight of the components and the limited operating space.

It is therefore desirable to provide a suction duct installation tool that addresses the difficulties of suction duct installation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a suction catheter mounting tool can conveniently inhale the installation of pipe.

The technical scheme of the utility model is that: a suction catheter installation tool comprises a worm screw rod lifter, a first installation support, an inner pipe assembly, a support frame, a platform assembly, a rotating assembly and a second installation support for placing a suction catheter; the supporting frame is provided with a plurality of through holes for being sleeved with the main pump core package jacking device; the first mounting support is connected with the support frame and the worm gear lead screw lifter; the inner pipe assembly is telescopically sleeved in the first mounting support and the support frame, the upper end of the worm screw elevator is in driving connection with the lower end of the inner pipe assembly, and the upper end of the inner pipe assembly is connected with the platform assembly; the second mounting support is connected to the upper end of the platform assembly through the rotating assembly; the rotating assembly can drive the second mounting support to rotate, and the center line of the rotation is coincident with the axis line of the platform assembly.

Preferably, the rotating assembly comprises a lower flange plate, an upper flange plate, a mandrel, a thrust self-aligning roller bearing and an end plate, the lower flange plate is in butt joint with the upper flange plate, the thrust self-aligning roller bearing is embedded between the lower flange plate and the upper flange plate, the mandrel penetrates through the lower flange plate, the thrust self-aligning roller bearing and the upper flange plate, one end of the mandrel is in contact with the end face of the lower flange plate, and the other end of the mandrel is fixed with the upper flange plate through the end plate; the lower flange plate is connected with the platform assembly, and the upper flange plate is connected with the second mounting support.

Preferably, the support frame includes first locating shaft and first support arm, first locating shaft connect in on the first erection support, inner tube subassembly cover is located in the first locating shaft, first support arm is in it has a plurality ofly, every to be laid for the circumference on the first locating shaft all set up one on the first support arm the through-hole.

Preferably, the platform subassembly includes platform, installation axle and guardrail, the installation axle passes the platform, the installation axle is connected with inner tube subassembly and rotating assembly, the guardrail is followed the platform periphery is enclosed and is closed, and be equipped with an opening on the guardrail.

Preferably, the second mounting support is provided with at least two positioning baffles for contacting with the inner wall of the suction duct.

Preferably, second erection support includes second location axle and second support arm, the second location axle with rotating component connects, the second support arm is in it has laid a plurality ofly, every to be the circumference on the second location axle all set up one on the second support arm location baffle.

Preferably, an arc surface is arranged on the outer end surface of the positioning baffle, and an inclined surface inclined towards the axis of the second mounting support is arranged at the upper end of the arc surface.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the platform capable of standing people is arranged, people can directly perform other operations on the installation tool, and the platform does not need to be built on the periphery, so that the convenience is higher;

2. through the structure that the lug of the limiting plate is matched with the sliding groove on the inner pipe assembly, circumferential positioning is provided for the platform assembly in the lifting process of the inner pipe assembly, so that the platform assembly cannot rotate, and the safety of personnel is ensured;

3. the structure of the rotating assembly enables the rotating assembly to rotate flexibly and not to shake and swing;

4. the suction duct installation tool is provided with various structures by combining the installation characteristics of the suction duct, thereby bringing great convenience to the installation of the suction duct.

Drawings

Fig. 1 is a schematic perspective view of a suction catheter installation tool according to the present invention;

FIG. 2 is a schematic partial cross-sectional view of a suction catheter installation tool according to the present invention in a fully retracted state;

FIG. 3 is an enlarged schematic view taken at A in FIG. 2;

fig. 4 is a schematic structural view of a limiting plate in the suction catheter installation tool provided by the present invention;

FIG. 5 is an enlarged view of the point B in FIG. 2;

fig. 6 is a schematic partial sectional view of the suction catheter installation tool provided by the present invention in a fully extended state.

In the drawings: 1. a worm screw elevator; 2. a first mounting support; 3. an inner tube assembly; 31. a chute; 4. a support frame; 41. a first positioning shaft; 42. a first support arm; 43. a through hole; 5. a platform assembly; 51. a platform; 52. installing a shaft; 53. a guardrail; 54. an opening; 6. a rotating assembly; 61. a lower flange plate; 62. an upper flange plate; 63. a mandrel; 64. a thrust self-aligning roller bearing; 65. an end plate; 7. a second mounting support; 71. a second positioning shaft; 72. a second support arm; 73. positioning a baffle plate; 731. a circular arc surface; 732. a bevel; 8. a limiting plate; 81. an inner diameter hole; 82. a bump; 9. a main pump core package jacking device; 10. a suction conduit.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" in the following description are used only to indicate the correspondence between the upper, lower, left and right directions of the drawings themselves, and do not limit the structure.

As shown in fig. 1, the suction catheter installation tool provided in this embodiment includes a worm screw elevator 1, a first installation support 2, an inner tube assembly 3, a support frame 4, a platform assembly 5, a rotation assembly 6, a second installation support 7, and a limit plate 8.

As shown in fig. 1 and 2, the first mounting bracket 2 connects the support frame 4 and the worm gear elevator 1. The support frame 4 includes a first positioning shaft 41 and a first support arm 42. The first positioning shaft 41 is connected to the first mounting bracket 2. The inner pipe assembly 3 is telescopically sleeved in the first mounting support 2 and the first positioning shaft 41 of the support frame 4. The first support arm 42 is circumferentially and uniformly distributed with four on the first positioning shaft 41, and each first support arm 42 is provided with a through hole 43 for being sleeved with the main pump core package jacking device 9. The supporting frame 4 provides bottom support for the whole installation tool through being installed on a main pump core package jacking device 9.

In a specific embodiment, the first mounting support 2 is provided with a pipe body (not numbered) for sleeving the inner pipe assembly 3, two ends of the pipe body are respectively provided with a flange, two ends of the inner pipe assembly 3 are also provided with flanges for mounting, wherein the flange at the bottom of the pipe body is provided with a worm wheel main body in the worm wheel screw rod elevator 1, a worm in the worm wheel screw rod elevator 1 penetrates through the flange and extends into the pipe body to provide lifting driving connection with the flange at the lower end of the inner pipe assembly 3, and the inner pipe assembly 3 and components mounted at the upper end of the inner pipe assembly can be lifted. Similarly, flanges are also arranged at two ends of the first positioning shaft 41, and the flange at the top of the pipe body is connected with the flange at the bottom of the first positioning shaft 41 through bolts. A flange at the top of the first positioning shaft 41 is located above the first arm 42, and a limiting plate 8 is installed between the flange and the upper end face of the first arm 42 by bolts.

As shown in fig. 3 and 4, the limiting plate 8 is provided with an inner diameter hole 81 through which the inner tube assembly 3 passes, the side wall of the inner tube assembly 3 is provided with a sliding groove 31 extending along the axial direction, the inner diameter hole 81 of the limiting plate 8 is provided with a projection 82 extending in the radial direction, and the projection 82 is assembled with the sliding groove 31. The engagement of the projections 82 with the slots 31 prevents the platform assembly 5 from rotating with it during the raising and lowering of the tool.

The platform assembly 5 includes a platform 51, a mounting shaft 52 and a guardrail 53. Similarly, two flanges are respectively arranged at two ends of the mounting shaft 52, and the flange at the bottom is mounted with a flange at the upper end of the inner pipe assembly 3 through bolts. The mounting shaft 52 passes through the platform 51, the guardrail 53 is enclosed along the outer periphery of the platform 51, and an opening 54 (shown in fig. 1) is formed on the guardrail 53.

As shown in fig. 5, the rotating assembly 6 includes a lower flange plate 61, an upper flange plate 62, a spindle 63, a self-aligning thrust roller bearing 64, and an end plate 65. The lower flange plate 61 is in butt joint with the upper flange plate 62, the self-aligning thrust roller bearing 64 is embedded between the lower flange plate 61 and the inner part of the upper flange plate 62, and the mandrel 63 penetrates through the lower flange plate 61, the self-aligning thrust roller bearing 64 and the upper flange plate 62. The mandrel 63 is in a T-shaped structure, the head of the mandrel is in contact with the lower end face of the lower flange plate 61, and one end, far away from the head, of the mandrel 63 is fixed with the upper flange plate 62 through an end plate 65 through bolts. The specific fixing mode is as follows: the center of the mandrel 63 is provided with a threaded hole, and the middle part of the end plate 65 is provided with a first hole corresponding to the threaded hole. The periphery of end plate 65 is equipped with a plurality of second holes that are the circumference equipartition, is equipped with on the last ring flange 62 with a plurality of the screw hole that the second hole position corresponds. The lower end surface of the mounted end plate 65 contacts the upper end surface of the upper flange 62. The lower flange 61 is fixedly mounted to the flange at the top of the mounting shaft 52 in the platform assembly 5.

After the mandrel 63 is screwed down through a fastener, the self-aligning thrust roller bearing 64 provides axial load support, and the roller pins in the self-aligning thrust roller bearing 64 and the retainer assembly jointly ensure that the second mounting support 7 rotates flexibly and cannot swing laterally. The centerline of this rotation coincides with the axis of the platform assembly 5 (i.e., the axis of the mounting shaft 52).

The second mounting base 7 includes a second positioning shaft 71, a second arm 72, and a positioning baffle 73. The bottom of the second positioning shaft 71 is provided with a flange (not numbered) mounted with the upper flange plate 62 of the rotating assembly 6, four second support arms 72 are circumferentially arranged at the top of the second positioning shaft 71, and each second support arm 72 is provided with one positioning baffle 73. The positioning baffle 73 is provided with an arc surface 731 contacting with the inner wall of the suction duct 10, and the upper end of the arc surface 731 is provided with a slope 732 inclining to the axis of the second mounting support 7. The inclined surface 732 has a guiding function, so that the suction catheter 10 can be quickly sleeved on the second mounting support 7 and contacted with the upper end surface of the second arm 72.

As shown in fig. 1, which is the initial position of the suction duct installation tool, when the suction duct 10 needs to be installed, the suction duct 10 is firstly sleeved on the second installation support 7, the worm screw elevator 1 is started to eject the inner pipe assembly 3, and at the same time, the second installation support 7 and the suction duct 10 are driven to lift by a stroke L (shown in fig. 6) until the installation of the suction duct 10 is completed.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. A suction catheter installation tool is characterized by comprising a worm gear lead screw lifter, a first installation support, an inner pipe assembly, a support frame, a platform assembly, a rotating assembly and a second installation support for placing a suction catheter; the supporting frame is provided with a plurality of through holes for being sleeved with the main pump core package jacking device; the first mounting support is connected with the support frame and the worm gear lead screw lifter; the inner pipe assembly is telescopically sleeved in the first mounting support and the support frame, the upper end of the worm screw elevator is in driving connection with the lower end of the inner pipe assembly, and the upper end of the inner pipe assembly is connected with the platform assembly; the second mounting support is connected to the upper end of the platform assembly through the rotating assembly; the rotating assembly can drive the second mounting support to rotate, and the center line of the rotation coincides with the axis line of the platform assembly.

2. The suction catheter installation tool according to claim 1, wherein the rotation assembly comprises a lower flange plate, an upper flange plate, a mandrel, a self-aligning thrust roller bearing and an end plate, the lower flange plate is in butt joint with the upper flange plate, the self-aligning thrust roller bearing is embedded between the lower flange plate and the upper flange plate, the mandrel penetrates through the lower flange plate, the self-aligning thrust roller bearing and the upper flange plate, one end of the mandrel is in contact with the end face of the lower flange plate, and the other end of the mandrel is fixed with the upper flange plate through the end plate; the lower flange plate is connected with the platform assembly, and the upper flange plate is connected with the second mounting support.

3. The suction catheter installation tool of claim 1, wherein the support frame comprises a first positioning shaft and a first support arm, the first positioning shaft is connected to the first installation support, the inner tube assembly is sleeved in the first positioning shaft, the first support arm is circumferentially arranged on the first positioning shaft, and each first support arm is provided with one through hole.

4. The suction catheter installation tool of claim 1 wherein said platform assembly includes a platform, a mounting shaft passing through said platform, said mounting shaft being connected to said inner tube assembly and said rotating assembly, and a fence circumscribing said platform and having an opening in said fence.

5. The suction duct installation tool of claim 1, wherein said second mounting bracket is provided with at least two positioning baffles for contacting the inner wall of the suction duct.

6. The suction catheter installation tool of claim 5 wherein said second mounting support comprises a second positioning shaft and a second arm, said second positioning shaft being coupled to said rotatable member, said second arm being circumferentially disposed about said second positioning shaft, each of said second arm having one of said positioning tabs disposed thereon.

7. The suction duct installing tool according to claim 5, wherein an arc surface is provided on an outer end surface of the positioning baffle, and an inclined surface inclined toward an axial line of the second installing support is provided on an upper end of the arc surface.

8. The installation tool for an inhalation catheter of claim 1, wherein the supporting frame is provided with a limiting plate, the limiting plate is provided with an inner diameter hole for the inner tube assembly to pass through, the side wall of the inner tube assembly is provided with a sliding groove extending along the axial direction, and the inner diameter hole of the limiting plate is provided with a convex block assembled with the sliding groove.