CN215413625U - Portable generator stator slot wedge detection device - Google Patents

Abstract

The utility model relates to a portable generator stator slot wedge detection device, which comprises a first installation pipe, a second installation pipe, an adjusting rod, a positioning assembly and a measuring assembly, wherein the first installation pipe is arranged on the first installation pipe; a power supply battery is arranged in the first installation pipe, an electric hydraulic mechanism is arranged in the second installation pipe, and the electric hydraulic mechanism comprises a hydraulic cylinder and a piston rod connected with the hydraulic cylinder; the positioning assembly comprises a first bracket, and the first bracket is provided with a first guide wheel and a top block; the measuring assembly comprises a second support, the second support is provided with a through hole, and the piston rod penetrates through the through hole and can move axially along the through hole; the upper side surface of the second support is provided with an electronic measuring probe, the lower side of the second support is provided with a second guide wheel, and the end part of the piston rod protruding out of the second support is provided with a slot wedge jacking block. Its structure is simple relatively, lightly easily operates, has effectively reduced the whole weight of equipment, simultaneously, sets up the leading wheel and can avoid the frequent dismouting of measurement process, improves maintenance efficiency, reduces the operation risk, practices thrift the overhaul period, increases the benefit.

Description

Portable generator stator slot wedge detection device

Technical Field

The utility model relates to the technical field of nuclear power plant measurement, in particular to a portable generator stator slot wedge detection device.

Background

At present, two power stations of Guankari group in China adopt Shanghai electric QFSN-1100-4 type generators (totally 8), stator slot wedges of the power stations adopt corrugated plate structures, and after a rotor of the power station is drawn out, a stator slot wedge loosening inspection test needs to be carried out. The number of the stator slot wedges is 1296, and the overhaul period is 3 days and the whole inspection time is longer when the spot inspection is carried out once according to the program requirement by using an instrument provided by a manufacturer.

The equipment provided by manufacturers mainly comprises a jack (manual hydraulic device), a supporting rod and a compression head, and meanwhile, a dial indicator is used for measuring the compression amount in a matching mode.

The using method comprises the following steps: firstly, confirming a tested slot wedge, putting a compression head and a jack into the tested slot, installing and holding a supporting rod, operating a manual hydraulic device by another person to support the device, beating a dial indicator to be zero, operating the manual hydraulic device again to reach a rated pressure, reading the number of the dial indicator and recording the number of the dial indicator into a related terminal.

The problems that exist are that: 1) the operation is inconvenient, equipment needs to be disassembled and assembled once every time one equipment is measured, and the adjustment time is long; 2) the equipment is heavy (about 25Kg), has poor stability and is easy to topple, and some examples of toppling and smashing the parts of the equipment in the using process exist; 3) the method has the advantages of long time consumption and low efficiency, the project period is about 3 days for spot inspection according to the program, the total inspection of 1296 blocks is longer, and the influence on the overhaul project period is large.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an improved portable generator stator slot wedge detection device.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the portable generator stator slot wedge detection device is constructed and comprises a first installation pipe, a second installation pipe, an adjusting rod, a positioning assembly and a measuring assembly;

the lower end of the first mounting pipe is connected with the upper end of the adjusting rod, and the upper end of the second mounting pipe is connected with the lower end of the adjusting rod;

a power supply battery is arranged in the first installation pipe, an electric hydraulic mechanism is arranged in the second installation pipe, the power supply battery is connected with the electric hydraulic mechanism through a lead so as to supply power to the electric hydraulic mechanism, and the electric hydraulic mechanism comprises a hydraulic cylinder and a piston rod connected with the hydraulic cylinder;

the positioning assembly comprises a first support arranged at the upper end part of the first mounting pipe, and a first guide wheel and a top block are arranged on one side of the first support, which is far away from the first mounting pipe;

the measuring assembly comprises a second support, the second support is provided with a through hole penetrating through the upper surface and the lower surface of the second support, and the piston rod penetrates through the through hole and can move axially along the through hole;

the upper side surface of the second support is provided with an electronic measuring probe which is in communication connection with an external terminal, the lower side of the second support is provided with a second guide wheel, and the end part of the piston rod protruding out of the second support is provided with a slot wedge ejector block.

Preferably, the lower end of the first installation pipe is provided with a first connecting rod, and the upper end of the second installation pipe is provided with a second connecting rod;

the first connecting rod and the second connecting rod are detachably connected with the adjusting rod.

Preferably, a magnet is further arranged on one side, away from the first mounting pipe, of the first support.

Preferably, the plane height direction of the top block and the upper surface of the magnet is lower than the plane of the upper surface of the first guide wheel.

Preferably, a pressure sensor is further arranged between the bottom of the piston rod and the upper surface of the wedge ejecting block.

Preferably, first installation pipe upper end pass through the gag lever post with first leg joint, the diameter of gag lever post is less than the external diameter of first installation pipe, gag lever post periphery cover is equipped with first spring.

Preferably, a section of the outer periphery of the piston rod on the upper side surface of the second bracket is sleeved with a second spring.

Preferably, a measuring hole is formed in the slot wedge top block, and the electronic measuring probe is arranged opposite to the measuring hole.

Preferably, the electronic measurement probe comprises a laser ranging sensor.

Preferably, a manual pressure relief valve is further arranged on the second installation pipe.

The implementation of the utility model has the following beneficial effects: this lightweight generator stator slot wedge detection device structure is simple relatively, and light easy operation has effectively reduced the whole weight of equipment, simultaneously, sets up the leading wheel and can avoid the frequent dismouting of measurement process, improves maintenance efficiency, reduces the operation risk, practices thrift the overhaul period, increases the benefit.

Drawings

The utility model will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic structural diagram of a portable generator stator slot wedge detection device of the utility model;

FIG. 2 is a side view of the portable generator stator slot wedge detection apparatus of the present invention;

FIG. 3 is a cross-sectional view of the portable generator stator slot wedge detection device of the present invention;

FIG. 4 is a top view of the positioning assembly of the present invention;

fig. 5 is a bottom view of the measuring assembly of the present invention.

Detailed Description

For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the following description, it is to be understood that the orientations and positional relationships indicated by "front", "rear", "upper", "lower", "left", "right", "longitudinal", "lateral", "vertical", "horizontal", "top", "bottom", "inner", "outer", "leading", "trailing", and the like are configured and operated in specific orientations based on the orientations and positional relationships shown in the drawings, and are only for convenience of describing the present invention, and do not indicate that the device or element referred to must have a specific orientation, and thus, are not to be construed as limiting the present invention.

It is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or intervening elements may also be present. The terms "first", "second", "third", etc. are only for convenience in describing the present technical solution, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of such features. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1-5, the portable generator stator slot wedge detection device, which may be referred to as a detection device hereinafter, includes a first installation pipe 1, a second installation pipe 2, an adjustment rod 3, a positioning assembly 4, and a measurement assembly 5.

The lower end of the first mounting pipe 1 is connected with the upper end of the adjusting rod 3, and the upper end of the second mounting pipe 2 is connected with the lower end of the adjusting rod 3. Furthermore, the lower end of the first installation pipe 1 is provided with a first connecting rod 6, the upper end of the second installation pipe 2 is provided with a second connecting rod 7, and the first connecting rod 6 and the second connecting rod 7 are detachably connected with the adjusting rod 3, such as in a threaded connection. Of course, the detachable assembly may be performed by a snap connection or a sliding connection, and the like, and is not limited in this respect.

Specifically, this first connecting rod 6 is equipped with the external screw thread of one section or multistage with the periphery of second connecting rod 7, should adjust pole 3 and can be the sleeve structure, and its inner wall is equipped with the internal thread, and the three passes through threaded connection, preferably, can be trapezoidal threaded connection, and its height that can suitably adjust detection device to be suitable for different measuring environment, make things convenient for detection device's dismouting simultaneously. The first connecting rod 6 may be welded to the first mounting tube 1, and the second connecting rod 7 may be welded to the second mounting tube 2, or may be fixed by screwing, and the like, which is not limited herein.

Further, a power supply battery 11 is disposed in the first mounting tube 1, an electro-hydraulic mechanism is disposed in the second mounting tube 2, the power supply battery 11 is connected to the electro-hydraulic mechanism 21 through a wire (not shown) to supply power to the electro-hydraulic mechanism 21, the electro-hydraulic mechanism 21 includes a hydraulic cylinder 211 and a piston rod 212 connected to the hydraulic cylinder 211, further, the electro-hydraulic mechanism 21 is connected to a control circuit board 22, and the control circuit board 22 receives a relevant control command to control the electro-hydraulic mechanism 21 to perform a relevant action, it can be understood that the control circuit board 22 may be a part of the whole electro-hydraulic mechanism 21, or may be an independent component which is in control connection with the electro-hydraulic mechanism 21. Furthermore, the first mounting tube 1 may further be provided with a battery interface 111 as a battery power line outlet interface. Further, the second mounting tube 2 may further be provided with an electro-hydraulic control interface 23, which can be used for connecting an external control device (such as a control handle) to control the electro-hydraulic mechanism 21. Of course, the battery interface 111 and the electro-hydraulic control interface 23 can be used for wire connection, so that the power supply battery 11 and the electro-hydraulic mechanism 21 are connected by wire to supply power to the electro-hydraulic mechanism 21, and in this embodiment, the output pressure of the electro-hydraulic mechanism 21 may be preset, and the output of the predetermined pressure can be started as long as the power is supplied. In the present embodiment, the electro-hydraulic mechanism 21 may be an electro-hydraulic jack. The power supply battery 11 may be a lithium battery, or other type of battery.

In this embodiment, the first mounting tube 1 is a hollow structure, and its inner cavity forms the mounting space for installing the power supply battery, and similarly, the second mounting tube 2 is also a hollow structure, and its inner cavity forms the accommodating space for installing the electro-hydraulic mechanism. Further, the first mounting pipe 1 and the second mounting pipe 2 may be made of an alloy with high strength and low density, and may be a stainless steel pipe or an aluminum alloy pipe.

Preferably, a plurality of holes can be formed in the peripheral walls of the first mounting tube 1 and the second mounting tube 2, and the holes can be round holes or square holes or irregular polygonal hole structures, so that the manufacturing cost and the weight of the whole device can be effectively reduced, and the dissipation of the working heat of the power supply battery is facilitated. Of course, the peripheral walls of the first and second mounting tubes 1 and 2 may also be flat structures, and are not limited in this respect.

The positioning assembly 4 comprises a first bracket 41 arranged at the upper end of the first mounting tube 1, and a first guide wheel 42 and a top block 43 are arranged on the side (here, the upper side shown in fig. 1 and 2) of the first bracket 41 far away from the first mounting tube 1.

Further, a magnet 44 is further arranged on one side of the first bracket 41 away from the first mounting pipe 1, and further, the plane height direction of the top block 43 and the upper surface of the magnet 44 is lower than the plane of the upper surface of the first guide wheel 42.

It is understood that the first bracket 41 includes a positioning plate having a plate-shaped structure, and side plates are provided at both ends of the positioning plate in a length direction, and the first guide wheels 42 are mounted on the side plates. The top block 43 may be a square structure, the top block 43 is mainly used for supporting the iron core, and is disposed at the center of the positioning plate, and the two magnets 44 may be disposed symmetrically on two sides of the top block 43.

Preferably, first installation pipe 1 upper end is connected with first support 41 through gag lever post 8, and the diameter of gag lever post 8 is less than the external diameter of first installation pipe 1, and 8 periphery covers of gag lever post are equipped with first spring 9, and first spring 9 is used for correcting and strengthens the tight dynamics of pasting of first leading wheel 42.

As shown in fig. 3, the measuring assembly 5 preferably includes a second bracket 51, the second bracket 51 is provided with a through hole penetrating through the upper and lower surfaces thereof, and the piston rod 212 is disposed through the through hole and can move axially along the through hole.

The upper side of the second bracket 51 is provided with an electronic measuring probe 54 which is in communication connection with an external terminal, the lower side of the second bracket 51 is provided with a second guide wheel 52, and the end part of the piston rod 212 which protrudes out of the second bracket 51 is provided with a slot wedge top block 53.

The second bracket 51 is mainly placed in the slot wedge to be measured, the piston rod 212 does not apply force to the second bracket 51, the second bracket 51 comprises a bottom plate and limiting plates arranged at two ends below the bottom plate, the second guide wheel 52 is mounted on the limiting plates, a through hole is formed in the center of each limiting plate, the piston rod 212 penetrates through the through hole, a slot wedge ejecting block 53 is arranged at the lower end part penetrating through the through hole, the slot wedge ejecting block 53 is used for applying pressure to the slot wedge, the slot wedge ejecting block 53 can be of a roughly trapezoidal structure or a circular platform structure, and the structural form and the size of the slot wedge ejecting block can be properly adjusted according to requirements.

Preferably, a section of the piston rod 212 located at the upper side of the second bracket 51 is peripherally sleeved with the second spring 10, and further, the piston rod 212 may include a plurality of sections, the outer diameter of the end portion thereof is smaller than the outer diameter near the second mounting tube 2, thereby forming a step structure at the junction, and the second spring 10 may be disposed between the bottom of the step structure and the upper side of the second bracket 51. The second spring 10 is mainly used for correcting and strengthening the attaching force of the second guide wheel 52, and the second guide wheel 52 is mainly used for assisting in positioning the position of the detection device, and the second guide wheel 52 can move to a preset measuring point.

Further, this slot wedge kicking block 53 is equipped with measuring hole 531, and electron measuring probe 54 sets up with measuring hole 531 relatively, and this measuring hole 531 runs through the upper and lower surface of this slot wedge kicking block 53, and it can be round hole structure, can U-shaped pore structure, C-shaped pore structure, and this electron measuring probe 54 sets up towards this measuring hole 531.

Further, the electronic measuring probe 54 includes a laser distance measuring sensor for measuring the sinking amount of the measured slot wedge when the pressure is applied, and transmitting the data to the external terminal through a communication module carried by the laser distance measuring sensor, specifically, the deformation amount of the measured point is represented by the difference between the measured value after being pressed and the measured value before being not pressed, and whether the quality of the measured slot wedge meets the requirement can be determined according to the data. Compared with the traditional dial indicator, the electronic measuring probe 54 has higher precision and better measuring effect. The communication module comprises but is not limited to a 3G/4G/5G module, a WIFI module, a ZigBee module, LoRa, NB-IoT, Bluetooth and the like. The external terminal includes, but is not limited to, a notebook computer, a desktop computer, a smart tablet, a smart phone, or the like.

Preferably, a pressure sensor 55 is also arranged between the bottom of the piston rod (212) and the upper surface of the wedge top block 53. The pressure sensor 55 is mainly used to detect the pressure output from the electro-hydraulic mechanism 21 in real time and ensure that the output pressure is within a predetermined range. Further, a manual relief valve 24 is provided in the second mounting pipe 2, and is connected to the electro-hydraulic mechanism 21, and is used for manual resetting and pressure relief to ensure that the pressure output from the electro-hydraulic mechanism 21 is within a predetermined range.

This lightweight generator stator slot wedge detection device structure is simple relatively, and light easy operation has effectively reduced the whole weight of equipment, simultaneously, sets up the leading wheel and can avoid the frequent dismouting of measurement process, improves maintenance efficiency, reduces the operation risk, practices thrift the overhaul period, increases the benefit.

It is to be understood that the foregoing examples, while indicating the preferred embodiments of the utility model, are given by way of illustration and description, and are not to be construed as limiting the scope of the utility model; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several changes and modifications can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.

Claims (10)

1. A portable generator stator slot wedge detection device is characterized by comprising a first installation pipe (1), a second installation pipe (2), an adjusting rod (3), a positioning assembly (4) and a measuring assembly (5);

the lower end of the first mounting pipe (1) is connected with the upper end of the adjusting rod (3), and the upper end of the second mounting pipe (2) is connected with the lower end of the adjusting rod (3);

a power supply battery (11) is arranged in the first installation pipe (1), an electric hydraulic mechanism (21) is arranged in the second installation pipe (2), the power supply battery (11) is connected with the electric hydraulic mechanism (21) through a lead so as to supply power to the electric hydraulic mechanism (21), and the electric hydraulic mechanism (21) comprises a hydraulic cylinder (211) and a piston rod (212) connected with the hydraulic cylinder (211);

the positioning assembly (4) comprises a first support (41) arranged at the upper end part of the first mounting pipe (1), and a first guide wheel (42) and a top block (43) are arranged on one side, away from the first mounting pipe (1), of the first support (41);

the measuring assembly (5) comprises a second bracket (51), the second bracket (51) is provided with a through hole penetrating through the upper surface and the lower surface of the second bracket, and the piston rod (212) penetrates through the through hole and can move axially along the through hole;

an electronic measuring probe (54) which is in communication connection with an external terminal is arranged on the upper side surface of the second support (51), a second guide wheel (52) is arranged on the lower side of the second support, and a slot wedge jacking block (53) is arranged at the end part of the piston rod (212) protruding out of the second support (51).

2. The portable generator stator slot wedge detection device according to claim 1, wherein a first connecting rod (6) is arranged at the lower end of the first installation pipe (1), and a second connecting rod (7) is arranged at the upper end of the second installation pipe (2);

the first connecting rod (6) and the second connecting rod (7) are detachably connected with the adjusting rod (3).

3. The portable generator stator slot wedge detection device as recited in claim 1, wherein a magnet (44) is further disposed on a side of the first bracket (41) away from the first mounting tube (1).

4. The portable generator stator slot wedge detection device as recited in claim 3, wherein the plane of the upper surface of the top block (43) and the magnet (44) is lower than the plane of the upper surface of the first guide wheel (42).

5. The portable generator stator slot wedge detection device according to claim 1, wherein a pressure sensor (55) is further arranged between the bottom of the piston rod (212) and the upper surface of the slot wedge top block (53).

6. The portable generator stator slot wedge detection device according to claim 1, wherein the upper end of the first installation pipe (1) is connected with the first support (41) through a limiting rod (8), the diameter of the limiting rod (8) is smaller than the outer diameter of the first installation pipe (1), and a first spring (9) is sleeved on the periphery of the limiting rod (8).

7. The portable generator stator slot wedge detection device according to claim 1, wherein a section of the piston rod (212) located on the upper side of the second bracket (51) is sleeved with a second spring (10).

8. The portable generator stator slot wedge detection device as claimed in claim 1, wherein a measuring hole (531) is formed on the slot wedge top block (53), and the electronic measuring probe (54) is arranged opposite to the measuring hole (531).

9. Portable generator stator slot wedge detection device according to claim 8, characterized in that the electronic measuring probe (54) comprises a laser ranging sensor.

10. The portable generator stator slot wedge detection device according to claim 1, wherein a manual pressure relief valve (24) is further provided on the second mounting pipe (2).

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