CN215215639U

CN215215639U - Be used for pine to take off part acceleration sensor fixing device

Info

Publication number: CN215215639U
Application number: CN202120910392.0U
Authority: CN
Inventors: 孙勇; 陶明驹; 徐东; 沈鼎; 刘哲; 马孝龙; 李袁鹏; 陈彦发; 陈亮; 王新庆
Original assignee: Jiangsu Nuclear Power Corp
Current assignee: Jiangsu Nuclear Power Corp
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2021-12-17
Anticipated expiration: 2031-04-29

Abstract

The utility model belongs to the technical field of mechanical design, concretely relates to be used for pine to take off part acceleration sensor fixing device. The method comprises the following steps: the device comprises a device mounting surface, a magnet, a loosening component acceleration sensor, an armored cable and a device heat insulation layer; further comprising: the device comprises a fixing plate, a threaded rod, a hand wheel, a pressing sleeve, a plurality of fixing blocks and a plurality of latches; the fixed plate is in threaded connection with the threaded rod, and the bottom of the threaded rod is provided with the pressing sleeve; a hand wheel is arranged at the top of the threaded rod; the plurality of lock catches are symmetrically arranged on the upper surface of the equipment heat-insulating layer; rectangular grooves are symmetrically formed in the upper surface of the equipment heat insulation layer, and a fixing block is arranged in each rectangular groove. The utility model discloses can solve and adopt the fixed pine of baffle fixing device to take off part acceleration sensor in the prior art when, the baffle uses for a long time and easily takes place the pine and moves the deformation, continues to cause the fixed insecure technical problem of pine part acceleration sensor.

Description

Be used for pine to take off part acceleration sensor fixing device

Technical Field

The utility model belongs to the technical field of mechanical design, concretely relates to be used for pine to take off part acceleration sensor fixing device.

Background

The loose component monitoring system of the nuclear power station discovers free objects and loose equipment components in coolant by monitoring surface noise of reactor equipment, the loose component monitoring system comprises a plurality of loose component acceleration sensors, each loose component acceleration sensor is usually fixedly mounted on the surface of the equipment in a magnet adsorption mode, and due to the fact that the sensitivity of the loose component monitoring system is high, when a main loop is loose and a component causes impact signals, multiple sensor channels near the impact positions can monitor the impact signals, but when an individual loose component acceleration sensor falls off and causes channel faults, data acquisition of the impact signals of the corresponding positions of the loose component monitoring system is lost, and subsequent detailed analysis on the impact signals cannot be completed and the work of the loose component cannot be determined.

Through analysis, the loosening component acceleration sensor falls off from the surface of the monitoring equipment mainly due to the following reasons: 1. the surface of a loop pipeline is arc-shaped, and the uneven installation surface can cause the insufficient magnet adsorption force of the loosening part acceleration sensor on the surface of the monitoring equipment; 2. the loosening part acceleration sensor has downward gravity; 3. the armored cable is in a bending state, and the stress of the sensor is outwards stretched; 4. the vibration of a loop pipeline can influence the magnet adsorption force of the loosening part acceleration sensor on the surface of the monitoring equipment.

Therefore, according to the analysis, the existing loosening component acceleration sensor mounting and fixing device adopts a baffle plate fixing device to fix the loosening component acceleration sensor so that the loosening component acceleration sensor is mounted on the pipe wall of the arc-shaped loop, and although the fixing mode can solve the problem that the acceleration sensor is stably mounted on the arc-shaped surface of the loop pipeline to prevent the acceleration sensor from falling off, the baffle plate can be deformed after being used for many times, so that the loosening component acceleration sensor cannot be used for a long time; therefore, a novel installation and fixation device for the loosening part acceleration sensor is needed to be improved and designed, the technical problem that after the existing installation and fixation device for the sensor is used for multiple times, a fixing baffle is prone to loosening and deforming, and the loosening part acceleration sensor is continuously fixed and infirm is caused is solved.

SUMMERY OF THE UTILITY MODEL

The utility model relates to a be used for pine to take off part acceleration sensor fixing device for when adopting the fixed pine of baffle fixing device to take off part acceleration sensor among the solution prior art, the baffle uses for a long time and easily takes place the pine and moves the deformation, continues to cause the fixed insecure technical problem of pine part acceleration sensor.

The technical scheme of the utility model:

an acceleration sensor fixing device for a release member, comprising: the device comprises a device mounting surface, a magnet, a loosening component acceleration sensor, an armored cable and a device heat insulation layer; the bottom of the loosening component acceleration sensor is provided with a magnet, the top of the loosening component acceleration sensor is connected with an armored cable, the magnet is adsorbed on the equipment installation surface, and an equipment heat insulation layer is arranged on the equipment installation surface; the acceleration sensor fixing device for a release member further includes: the device comprises a fixing plate, a threaded rod, a hand wheel, a pressing sleeve, a plurality of fixing blocks and a plurality of latches; the fixed plate is in threaded connection with the threaded rod, and the bottom of the threaded rod is provided with the pressing sleeve; a hand wheel is arranged at the top of the threaded rod; the plurality of lock catches are symmetrically arranged on the upper surface of the equipment heat-insulating layer; rectangular grooves are symmetrically formed in the upper surface of the equipment heat insulation layer, and a fixing block is arranged in each rectangular groove.

The whole cuboid structure that is of fixed plate, the holistic central point of fixed plate puts the department and opens there is a circular screw hole, the threaded rod penetrates screw hole and fixed plate spiro union.

Two ends of the fixing plate are respectively provided with a rectangular positioning hole; the rectangular groove is arranged on the upper surface of the equipment heat-insulating layer and matched with the rectangular positioning hole in the fixing plate, and the width of the rectangular groove is matched with that of the fixing plate.

A clamping groove is formed in the same side face of each fixing block; and the position of each lock catch arranged on the upper surface of the equipment heat-insulating layer is matched with the position of the clamping groove on each fixed block.

The groove surface of the clamping groove is of an arc-shaped structure.

The size of the rectangular positioning hole is matched with that of the fixing block, and when the fixing block is installed and fixed, the fixing block penetrates into the inside of the rectangular positioning hole to clamp the two ends of the fixing plate with the fixing block.

The pressing sleeve is further provided with a cable penetrating opening, and the size of the opening of the cable penetrating opening is matched with the outer diameter of the armored cable.

The bottom of the threaded rod is rotatably connected to the top of the compression sleeve through a rolling bearing; the bottom of the pressing sleeve is in sliding connection with the upper end of the loosening component acceleration sensor.

The whole hollow structure that is of equipment heat preservation, the inside central authorities of equipment heat preservation are the back taper structure, and the cable is worn the mouth and is bar structure.

The utility model has the advantages that:

the utility model discloses a pine takes off part acceleration sensor installation fixing device, through fixed plate, fixed block, threaded rod, sleeve pipe and the hasp that is equipped with, replaced the fixed connected mode of traditional baffle, at first utilize the magnetic path will take off part acceleration sensor and adsorb on the equipment fixing surface when the installation, play the effect of fixing in advance.

Rectangular locating hole cover plug-in connection on the fixed block on the fixed plate, fixed plate and rectangle recess joint this moment, the fixed block plays the effect of location to the fixed plate, utilizes the hasp to carry out the location of piece with the draw-in groove cooperation on the fixed block to the fixed plate, and then can realize quick assembly disassembly pine part acceleration sensor and maintain and change.

Twist and move the hand wheel, the hand wheel drives the threaded rod rotatory, the threaded hole of threaded rod rotation on the fixed plate moves down, when compressing tightly the sleeve pipe and taking off the upper end contact of part acceleration sensor, draw forth the armoured cable in the cable wearing mouth, continue rotatory threaded rod make compress tightly the sleeve pipe move down and compress tightly take off part acceleration sensor, and realize rotating through antifriction bearing between threaded rod and the compression sleeve pipe, damage when compressing tightly and take off part acceleration sensor and armoured cable has been avoided, thereby can avoid using the too many not hard up problem of sensor that leads to of number of times, and then reach further fixed sensor's effect, the problem that the current part acceleration sensor that takes off who mentions among the above-mentioned background art easily drops is solved.

Drawings

Fig. 1 is a schematic structural view of an acceleration sensor fixing device for a loosening member according to the present invention;

fig. 2 is an assembly view of an acceleration sensor fixing device for a loose part according to the present invention;

wherein: 1-a device mounting surface; 2-a magnet; 3-loosening element acceleration sensor; 4, locking and buckling; 5, pressing the sleeve; 6-equipment insulating layer; 7-rectangular positioning holes; 8-a rectangular groove; 9-a card slot; 10-a hand wheel; 11-a fixed plate; 12-fixing blocks; 13-a threaded rod; 14-cable through opening; 15-armored cable.

Detailed Description

The following describes in detail an acceleration sensor fixing device for a release member according to the present invention with reference to the accompanying drawings and embodiments.

As shown in fig. 1, an acceleration sensor fixing device for a release member includes: the device comprises a device mounting surface 1, a magnet 2, a loosening component acceleration sensor 3, an armored cable 15 and a device heat-insulating layer 6; magnet 2 is installed to the bottom of pine part acceleration sensor 3, and the top of pine part acceleration sensor 3 is connected with armoured cable 15, magnet 2 adsorbs on equipment fixing surface 1, is provided with equipment heat preservation 6 on the equipment fixing surface 1, still includes: the device comprises a fixing plate 11, a threaded rod 13, a hand wheel 10, a pressing sleeve 5, a plurality of fixing blocks 12 and a plurality of lock catches 4; the fixed plate 11 is in threaded connection with a threaded rod 13, and the bottom of the threaded rod 13 is provided with a pressing sleeve 5; a hand wheel 10 is fixedly arranged at the top of the threaded rod 13; the plurality of lock catches 4 are symmetrically arranged on the upper surface of the equipment heat-insulating layer 6; rectangular grooves 8 are further symmetrically formed in the upper surface of the equipment heat insulation layer 6, and a fixing block 12 is vertically and fixedly connected into each rectangular groove 8.

The whole cuboid structure that is of fixed plate 11, the holistic central point of fixed plate 11 puts the department and opens there is a circular screw hole, threaded rod 13 penetrates the screw hole and fixed plate 11 spiro union.

Two ends of the fixing plate 11 are respectively provided with a rectangular positioning hole 7; the rectangular groove 8 is arranged on the upper surface of the equipment heat-insulating layer 6 and is matched with the rectangular positioning hole 7 on the fixing plate 11, and the width of the rectangular groove 8 is matched with that of the fixing plate 11.

A clamping groove 9 is formed in the same side face of each fixing block 12, the groove face of each clamping groove 9 is of an arc-shaped structure, and the clamping grooves 9 are matched with the lock catches 4; the position of each lock catch 4 arranged on the upper surface of the equipment heat-insulating layer 6 is matched with the position of the clamping groove 9 on each fixing block 12.

The size of the rectangular positioning hole 7 is matched with that of the fixing block 12, and when the fixing device is installed and fixed, the fixing block 12 penetrates into the rectangular positioning hole 7 to clamp the two ends of the fixing plate 11 with the fixing block 12.

A cable through opening 14 is further formed in one side face of the pressing sleeve 5, and the opening size of the cable through opening 14 is matched with the outer diameter size of an armored cable 15.

The bottom of the threaded rod 13 is rotatably connected to the top of the compression sleeve 5 through a rolling bearing; the bottom of the pressing sleeve 5 is connected with the upper end of the loosening component acceleration sensor 3 in a sliding mode.

Through the technical scheme, a supporting base point can be provided for the threaded rod 13 through the fixing plate 11, then the threaded rod 13 is sleeved and positioned with the fixing block 12 through the rectangular positioning holes 7 formed in the two ends of the fixing plate 11, the fixing plate 11 is fixed on the upper surface of the equipment heat insulation layer 6 through the matching of the lock catch 4 and the clamping groove 9 on the fixing block 12, a technician manually screws the hand wheel 10 during installation and fixation, the hand wheel 10 drives the threaded rod 13 to rotate, the threaded rod 13 rotates and moves downwards in the threaded hole on the fixing plate 11, when the threaded rod 13 moves downwards, the pressing sleeve 5 is in close contact with the upper end of the loosening part acceleration sensor 3, the armored cable 15 is led out from the cable through opening 14, at the moment, the armored cable 15 can be matched with the cable through opening 14 on the pressing sleeve 5 to prevent the pressing sleeve 5 from sliding on the surface of the loosening part acceleration sensor 3, then the threaded rod 13 is continuously rotated to enable the pressing sleeve 5 to move downwards to press the loosening part acceleration sensor 3, and the threaded rod 13 and the pressing sleeve 5 are in rotary connection through a rolling bearing, so that the damage to the loosening part acceleration sensor 3 and the armored cable 15 during pressing is avoided.

The whole hollow structure that is of equipment heat preservation 6, the inside central authorities of equipment heat preservation 6 are the back taper structure, and cable is worn mouthful 14 and is the bar structure, and cable is worn mouthful 14 width and 15 outer diameters of armoured cable the same, and the width of rectangle recess 8 is the same with the width of fixed plate 11.

By adopting the technical scheme, the rectangular groove 8 is matched with the fixing plate 11, when the fixing plate 11 is installed, the rectangular groove on the equipment heat-insulating layer 6 can be clamped with the fixing plate 11, thereby, the fixing plate 11 can be positioned and placed quickly, and when the fixing plate 11 is placed, the rectangular positioning hole 7 on the fixing plate 11 must be matched with the fixing block 12 in the rectangular groove 8 in a sleeved manner to ensure that the fixing plate 11 is completely clamped with the rectangular groove 8, so that the rectangular positioning hole 7 can be matched with the fixing block 12 in the rectangular groove 8 to limit the fixing plate 11, and the fixing plate 11 is prevented from sliding in the rectangular groove on the equipment mounting surface 6, at the moment, when the lock catch 4 is locked, the lock catch 4 is matched with the clamping groove 9 on the fixing block 12, so that the fixing block 12 and the lock catch 4 can be prevented from sliding, and the stability between the lock catch 4 and the fixing block 12 is improved.

Through above-mentioned technical scheme, this fixed establishment has compensatied the not enough of russia in this sensor design and manufacturing, because a certain

nuclear power station

1, 2 units are domestic uses russia VVER unit for the first time, this fixed establishment will provide good reference for domestic future the same type unit installation acceleration sensor, other types of units if need install this type acceleration sensor, also can adopt this fixed establishment to solve this type of problem.

Fig. 2, a method for fixing an acceleration sensor fixing device of a release member as described above, comprising the steps of:

the method comprises the following steps: firstly, a magnet 2 is adsorbed on an equipment installation surface 1 on a loop pipeline, then the position of the magnet 2 is adjusted by using a tool, a loosening part acceleration sensor 3 is adsorbed on the surface of the magnet 2 after the position is adjusted, the loosening part acceleration sensor 3 is fixedly limited by using the tool when the loosening part acceleration sensor 3 is placed, and the loosening part acceleration sensor 3 is prevented from being damaged due to the fact that the impact is caused by large adsorption force between the loosening part acceleration sensor 3 and the magnet 2;

step two: the central thread of the fixing plate 11 penetrates into the threaded rod 13; two ends of a fixing plate 11 are placed in a rectangular groove 8 on an equipment heat-insulating layer 6, when the fixing plate 11 is placed, a fixing block 12 in the rectangular groove 8 is inserted into a rectangular positioning hole 7 on the fixing plate 11, and then the fixing plate 11 is locked by matching a lock catch 4 with a clamping groove 9 on the fixing block 12;

at the moment, the fixed block 12 and the fixed plate 11 are fixed on the equipment heat-insulating layer 6 through the lock catch 4, then the hand wheel 10 on the threaded rod 13 is rotated by hands or tools, and the threaded rod 13 is driven to rotate in a threaded hole on the fixed plate 11 and move up and down when the hand wheel 10 rotates;

step three: when the threaded rod 13 moves on the fixing plate 11, the threaded rod 13 drives the pressing sleeve 5 to move to the position above the loosening component acceleration sensor 3, the hand wheel 10 stops rotating, the pressing sleeve 5 and the threaded rod 13 are in a rotating connection relationship through a rolling bearing, so that the pressing sleeve 5 can be directly rotated by hand, the cable through hole 14 in the pressing sleeve 5 is consistent with the bending direction of the armored cable 15, the armored cable 15 penetrates out of the cable through hole 14 by using a tool, finally the hand wheel 10 is rotated again to drive the threaded rod 13 to rotate, the rotating threaded rod 13 moves downwards to abut against the pressing sleeve 5 to press and fix the loosening component acceleration sensor 3, the fixing device can conveniently complete the installation of the acceleration sensor, the loosening component acceleration sensor 3 and the armored cable are prevented from being damaged during the pressing, and the problem that the sensor is loosened due to excessive use times can be avoided, thereby further fixing the sensor.

The above detailed description of the embodiments of the present invention is not limited to the above examples, and various changes can be made without departing from the spirit of the present invention within the knowledge range of those skilled in the art.

Claims

1. An acceleration sensor fixing device for a release member, comprising: the device comprises a device mounting surface (1), a magnet (2), a loosening component acceleration sensor (3), an armored cable (15) and a device heat-insulating layer (6); magnet (2) are installed to the bottom that takes off part acceleration sensor (3), and the top that takes off part acceleration sensor (3) is connected with armoured cable (15), magnet (2) adsorb on equipment fixing surface (1), are provided with equipment heat preservation (6) on equipment fixing surface (1), and its characterized in that still includes: the device comprises a fixing plate (11), a threaded rod (13), a hand wheel (10), a pressing sleeve (5), a plurality of fixing blocks (12) and a plurality of latches (4); the fixed plate (11) is in threaded connection with the threaded rod (13), and the bottom of the threaded rod (13) is provided with the pressing sleeve (5); a hand wheel (10) is arranged at the top of the threaded rod (13); the plurality of lock catches (4) are symmetrically arranged on the upper surface of the equipment heat-insulating layer (6); rectangular grooves (8) are further symmetrically formed in the upper surface of the equipment heat-insulating layer (6), and a fixing block (12) is arranged in each rectangular groove (8).

2. An acceleration sensor fixing device for a release member according to claim 1, characterized in that: the whole cuboid structure that is of fixed plate (11), the holistic central point of fixed plate (11) puts the department and opens there is a circular screw hole, threaded rod (13) penetrate screw hole and fixed plate (11) spiro union.

3. An acceleration sensor fixing device for a release member according to claim 2, characterized in that: two ends of the fixing plate (11) are respectively provided with a rectangular positioning hole (7); the rectangular groove (8) is arranged on the upper surface of the equipment heat-insulating layer (6) and is matched with the rectangular positioning hole (7) in the fixing plate (11), and the width of the rectangular groove (8) is matched with the width of the fixing plate (11).

4. An acceleration sensor fixing device for a release member according to claim 3, characterized in that: a clamping groove (9) is formed in the same side face of each fixing block (12); the position of each lock catch (4) arranged on the upper surface of the equipment heat-insulating layer (6) is matched with the position of the clamping groove (9) on each fixing block (12).

5. An acceleration sensor fixing device for a release member according to claim 4, characterized in that: the groove surface of the clamping groove (9) is of an arc-shaped structure.

6. An acceleration sensor fixing device for a release member according to claim 5, characterized in that: the size of rectangle locating hole (7) and the size phase-match of fixed block (12), when the installation is fixed, fixed block (12) penetrate inside rectangle locating hole (7) with the both ends and the fixed block (12) joint of fixed plate (11).

7. An acceleration sensor fixing device for a release member according to claim 6, characterized in that: the pressing sleeve (5) is further provided with a cable penetrating opening (14), and the opening size of the cable penetrating opening (14) is matched with the outer diameter size of the armored cable (15).

8. An acceleration sensor fixing device for a release member according to claim 7, characterized in that: the bottom of the threaded rod (13) is rotatably connected to the top of the compression sleeve (5) through a rolling bearing; the bottom of the pressing sleeve (5) is in sliding connection with the upper end of the loosening component acceleration sensor (3).

9. An acceleration sensor fixing device for a release member according to claim 7, characterized in that: the whole equipment heat-insulating layer (6) is of a hollow structure, the central part inside the equipment heat-insulating layer (6) is of an inverted cone structure, and the cable penetrating port (14) is of a strip structure.