CN210139381U

CN210139381U - Supporting device

Info

Publication number: CN210139381U
Application number: CN201920615357.9U
Authority: CN
Inventors: 马滕; 孙瑶; 张杨; 姚小波
Original assignee: Center Maintenance Co Ltd
Current assignee: Center Maintenance Co Ltd; China Nuclear Industry Maintenance Co Ltd
Priority date: 2019-04-29
Filing date: 2019-04-29
Publication date: 2020-03-13
Anticipated expiration: 2029-04-29

Abstract

The utility model provides a supporting device for support the pump body of centrifugal pump, supporting device includes: the clamping blocks are used for gathering together to clamp the pump body and separating from each other to loosen the pump body; the spacing adjusting mechanism is respectively connected with each clamping block and is used for driving each clamping block to gather and separate from each other; and the lifting adjusting mechanism is connected with the spacing adjusting mechanism and is used for driving the spacing adjusting mechanism and all the clamping blocks to integrally lift. The utility model provides a strutting arrangement can be applicable to the not pump body of unidimensional, has improved the efficiency of pump body maintenance and has reduced cost of maintenance, and it is high to pump body support stationarity simultaneously, more does benefit to pump body maintenance.

Description

Supporting device

Technical Field

The utility model belongs to the technical field of the nuclear power overhauls, more specifically says, relates to a strutting arrangement.

Background

In the process of nuclear power overhaul of rotating mechanical equipment, the overhaul work of the centrifugal pump is very much. The centrifugal pump occupies a considerable position in the operation system of the nuclear power plant, and the pump can not be removed as long as the liquid is conveyed, such as a main pump of a reactor coolant loop, a main feed water pump of a steam loop, a circulating cooling water pump of a circulating cooling water system, a nuclear island important raw water pump, a conventional island cooling water pump and the like, wherein the small centrifugal pump is the most. The centrifugal pump is a maintainable product, the maintenance of the centrifugal pump has strong knowledge and skill, and the maintenance of the centrifugal pump is to perform maintenance inspection on the centrifugal pump and repair faults, and maintain and restore the specified functions of the centrifugal pump. The maintenance work of the centrifugal pump is well done, and the maintenance work of the centrifugal pump has important significance for prolonging the service life of the centrifugal pump, ensuring the safe operation of each system, fully playing the efficacy and the like, so the maintenance work of the centrifugal pump is very important work.

At present, in the process of overhauling a water pump, after a pump body is drawn out from a volute, the pump body needs to be placed on a horizontal plane so as to be convenient for disassembling and assembling components such as an impeller, but because a rear supporting leg is arranged on the pump body (a backrest wheel side), the pump body is out of balance after being drawn out from the volute, and a special tool needs to be used for heightening, such as a sleeper. However, the field pumps are of various types (different manufacturers: sinking drum, dark blue, etc.), the rear supporting feet are different in height, it is difficult to find a proper sleeper, sometimes a proper thickness needs to be selected from a plurality of sleepers for use, and if the proper thickness cannot be found, the sleeper with the required thickness needs to be processed. The heights of sleepers required for each overhaul are inconsistent due to the fact that the types of the pumps are multiple, the probability of recycling is low, a lot of industrial waste is generated, and working efficiency is reduced. In addition, because of the nuclear power station control incompressible radioactive solid waste gets into the radioactivity control area, the sleeper business turn over radioactivity control area flow is comparatively complicated, need use red plastic cloth parcel to protect the sleeper moreover, brings inconvenience for maintenance work, has also increased the plastic cloth use amount, has increased the radioactive waste volume simultaneously.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a supporting device to solve the technical problem that the centrifugal pump body leads to the centrifugal pump to overhaul inefficiency and with high costs through the sleeper support that exists among the prior art.

In order to achieve the above object, the utility model adopts the following technical scheme: there is provided a support device for supporting a pump body of a centrifugal pump, the support device comprising:

the clamping blocks are used for being mutually gathered to clamp the pump body and mutually separated to loosen the pump body;

the distance adjusting mechanism is respectively connected with each clamping block and is used for driving each clamping block to gather together and separate from each other;

and the lifting adjusting mechanism is connected with the spacing adjusting mechanism and is used for driving the spacing adjusting mechanism and each clamping block to integrally lift.

Furthermore, the supporting device comprises a first clamping block and a second clamping block, the first clamping block is provided with a first inclined surface, the second clamping block is provided with a second inclined surface, and a V-shaped surface for supporting and clamping the pump body is formed by the first inclined surface and the second inclined surface in a surrounding mode at intervals.

Further, the spacing adjustment mechanism includes:

a first support plate;

the first screw rod is rotatably arranged on the first supporting plate;

the first handle is arranged at one end of the first screw rod and used for driving the first screw rod to rotate;

the first screw has:

the first clamping block is arranged on the first threaded section and is in threaded connection with the first threaded section;

the second thread section is arranged at an interval with the first thread section and is opposite to the thread of the first thread section, and the second clamping block is arranged on the second thread section and is in threaded connection with the second thread section.

Furthermore, a through groove penetrating along the length direction of the first supporting plate is formed in the first supporting plate, the first screw rod is rotatably arranged in the through groove, the first clamping block is sleeved on the first thread section and slidably arranged in the through groove, and the second clamping block is sleeved on the second thread section and slidably arranged in the through groove.

Furthermore, a supporting partition plate used for supporting the first screw rod is arranged in the middle of the through groove, a through hole is formed in the supporting partition plate, the first screw rod penetrates through the through hole, and the supporting partition plate separates two sides of the first thread section and the second thread section.

Further, the supporting device further comprises a second supporting plate, the second supporting plate is opposite to the first supporting plate and is arranged at intervals, the bottom of the lifting adjusting mechanism is connected with the second supporting plate, and the top of the lifting adjusting mechanism is connected with the first supporting plate.

Further, the lift adjustment mechanism includes:

each support arm group comprises an upper support arm and a lower support arm which are hinged with each other, the top end of the upper support arm is hinged with the first support plate, and the bottom end of the lower support arm is hinged with the second support plate;

and the second screw rods are respectively connected with the hinge points of the support arm groups and are used for changing the distance between the hinge points.

Furthermore, the lifting adjusting mechanism comprises a first support arm group and a second support arm group, the first support arm group comprises a first upper support arm and a first lower support arm, and the first upper support arm and the first lower support arm are hinged through a sliding hinge; the second support arm group comprises a second upper support arm and a second lower support arm, and the second upper support arm and the second lower support arm are hinged through a fixed hinge; one end of the second screw rod penetrates through the sliding hinge and is in threaded connection with the sliding hinge, and the other end of the second screw rod penetrates through the fixed hinge and is in rotating connection with the fixed hinge.

Furthermore, the sliding hinge comprises a first rotating shaft and first hinge parts respectively arranged on two opposite sides of the first rotating shaft, the first rotating shaft is sleeved on the second screw and is in threaded connection with the second screw, and the two first hinge parts are respectively used for being hinged with the first upper supporting arm and the first lower supporting arm.

Furthermore, one end of the second screw is provided with a second handle for driving the second screw to rotate, and the other end of the second screw is provided with a positioning block for positioning the fixed hinge.

The utility model provides a strutting arrangement's beneficial effect lies in: compared with the prior art, the utility model discloses a strutting arrangement is through two at least clamp splice, interval adjustment mechanism and lift adjustment mechanism's setting for this strutting arrangement forms another supporting legs of the pump body, and then guarantees that the pump body focus is balanced, convenient maintenance. Simultaneously, the distance between the clamping blocks is adjustable, and the height of each clamping block is adjustable, so that the supporting device can be suitable for pump bodies with different diameters and different heights, the supporting device with different sizes does not need to be replaced according to the pump bodies with different sizes, the preparation process of pump body maintenance is reduced, the time is saved, the cost of the supporting device is saved, the pump body is supported by the supporting device, the gravity center balance is better, and the maintenance is more facilitated.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic structural diagram of a supporting device according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

1-a first clamp splice; 2-a first support plate; 3-a first screw; 4-a first handle; 5-a third rotating shaft; 6-a first upper support arm; 7-a sliding hinge; 8-a second screw; 9-a second handle; 10-a first lower support arm; 11-a second support plate; 12-a fourth shaft; 13-a second clamp block; 14-a fifth rotating shaft; 15-a second upper support arm; 16-a fixed hinge; 17-a second lower support arm; 18-a sixth rotating shaft; 19-positioning blocks; 20-through grooves; 21-supporting the partition plate; 31-a first thread segment; 32-a second thread segment; 101-a first inclined surface; 131-second inclined surface.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1, a supporting device provided by the present invention will now be described. The supporting device is used for supporting the pump body of the centrifugal pump so as to prevent the pump body from losing balance and being incapable of being overhauled after being drawn out from the volute. It is understood that in other embodiments of the present invention, the above-mentioned supporting device can be used for supporting other structures or devices with unstable center of gravity, and even for shipping devices, according to practical situations and specific requirements, which are not limited herein.

The supporting device comprises at least two clamping blocks, a spacing adjusting mechanism and a lifting adjusting mechanism. The clamping blocks are arranged on the interval adjusting mechanism and used for being mutually gathered to clamp the pump body and mutually separated to loosen the pump body. The distance adjusting mechanism is respectively connected with each clamping block and is used for driving each clamping block to gather together and separate from each other. The lifting adjusting mechanism is connected with the spacing adjusting mechanism and is used for driving the spacing adjusting mechanism and all the clamping blocks to integrally lift.

The utility model provides a strutting arrangement is when using, can roughly measure the roughly height of pump body top diameter and the pump body in advance, then set the distance between each clamp splice to equal with pump body top diameter, and set the height of each clamp splice to equal with pump body height, set up the pump body top between each clamp splice after that, and the interval through each clamp splice of interval adjustment mechanism fine setting is in order to adapt to pump body top, then drive the height of each clamp splice of lift adjustment mechanism fine setting in order to adapt to the height of the pump body.

The utility model provides a strutting arrangement is through two at least clamp splice, interval adjustment mechanism and lift adjustment mechanism's setting for this strutting arrangement forms another supporting legs of the pump body, and then guarantees pump body focus balance, convenient maintenance. Simultaneously, the distance between the clamping blocks is adjustable, and the height of each clamping block is adjustable, so that the supporting device can be suitable for pump bodies with different diameters and different heights, the supporting device with different sizes does not need to be replaced according to the pump bodies with different sizes, the preparation process of pump body maintenance is reduced, the time is saved, the cost of the supporting device is saved, the pump body is supported by the supporting device, the gravity center balance is better, and the maintenance is more facilitated.

Further, in the present embodiment, referring to fig. 1, the supporting device includes a first clamping block 1 and a second clamping block 13, the first clamping block 1 and the second clamping block 13 are both wedge-shaped block structures, the first clamping block 1 has a first inclined surface 101, the second clamping block 13 has a second inclined surface 131, the first inclined surface 101 and the second inclined surface 131 are relatively spaced and enclosed to form a V-shaped surface for supporting and clamping the pump body, and a tip of the V-shaped surface faces downward. During actual work, the top of the pump body can be erected between the first clamping block 1 and the second clamping block 13, and the two opposite sides of the top of the pump body are clamped and supported through the V-shaped surface. It is understood that in other embodiments of the present invention, the supporting device may also include three or more than three clamping blocks, which is not limited herein.

In the present embodiment, the first inclined surface 101 and the second inclined surface 131 are both flat surfaces. It can be understood that, in other embodiments of the present invention, according to actual conditions and specific requirements, the first inclined plane 101 and the second inclined plane 131 may also be arc surfaces, so as to better support the pump body by adhering to the top thereof.

Preferably, in this embodiment, the first clamping block 1 and the second clamping block 13 are both made of copper. It should be understood that, in other embodiments of the present invention, the first clamping block 1 and the second clamping block 13 may be made of other materials, such as iron material, steel material, etc., according to different structures to be clamped, which is not limited herein.

Further, in the present embodiment, referring to fig. 1, the distance adjusting mechanism includes a first support plate 2, a first screw 3 and a first handle 4. The first supporting plate 2 is a long thin plate, the first screw rod 3 is rotatably arranged on the first supporting plate 2, the first handle 4 is arranged at one end of the first screw rod 3, the first handle 4 is circular, and the first handle 4 is used for driving the first screw rod 3 to rotate. Specifically, the first screw 3 has a first thread section 31 and a second thread section 32, the first thread section 31 and the second thread section 32 are arranged at intervals, the threads on the first thread section 31 and the second thread section 32 are opposite, the first clamping block 1 is arranged on the first thread section 31 and is in threaded connection with the first thread section 31, the second clamping block 13 is arranged on the second thread section 32 and is in threaded connection with the second thread section 32, that is, the first clamping block 1 and the second clamping block 13 have opposite threads. In the space adjusting mechanism of the present invention, because the threads on the first thread section 31 are opposite to the threads on the second thread section 32, when the first screw rod 3 is clockwise rotated by the first handle 4, the first clamping block 1 and the second clamping block 13 move in opposite directions, so that the space between the first clamping block 1 and the second clamping block 13 becomes smaller; when the first screw 3 rotates counterclockwise, the first clamping block 1 and the second clamping block 13 move in opposite directions, so that the distance between the first clamping block 1 and the second clamping block 13 is increased.

Preferably, in this embodiment, the first support plate 2 and the first screw 3 are made of steel. It should be understood that, in other embodiments of the present invention, the first supporting plate 2 and the first screw 3 may also be made of other materials, such as iron material, copper material, etc., which are not limited herein.

Further, in the present embodiment, referring to fig. 1, a through groove 20 penetrating through the first support plate 2 along the length direction is formed on the first support plate 2, the length of the first screw rod 3 is the same as the length of the first support plate 2, the first screw rod 3 is rotatably disposed in the through groove 20, the first clamping block 1 is sleeved on the first thread section 31 and slidably disposed in the through groove 20, and the second clamping block 13 is sleeved on the second thread section 32 and slidably disposed in the through groove 20.

Specifically, in this embodiment, the first clamping block 1 and the second clamping block 13 are both in a right-angled triangle block structure, a right-angled edge of the first clamping block 1 and a right-angled edge of the second clamping block 13 are both slidably disposed in the through groove 20, a cross section of the through groove 20 is square, and along the width direction of the first supporting plate 2, the width of the through groove 20 is matched with the width of the first clamping block 1 and the width of the second clamping block 13, that is, the through groove 20 can be regarded as a guide groove for the movement of the first clamping block 1 and the second clamping block 13, so as to ensure that the first clamping block 1 and the second clamping block 13 move along a straight line.

Further, in this embodiment, referring to fig. 1, a supporting partition 21 for supporting the first screw 3 is further disposed in the middle of the through slot 20, a through hole is formed in the supporting partition 21, the first screw 3 is inserted into the through hole, the supporting partition 21 divides the first threaded section 31 and the second threaded section 32 into two sides, and the first clamping block 1 and the second clamping block 13 are also disposed on two sides of the supporting partition 21, respectively. The supporting partition 21 in this embodiment not only has a function of fixing and supporting the first screw 3, but also has a function of limiting the stroke of the first clamping block 1 and the second clamping block 13.

Further, in the present embodiment, referring to fig. 1, the supporting device further includes a second supporting plate 11, the second supporting plate 11 is opposite to the first supporting plate 2 and is disposed at an interval, the bottom of the lifting adjusting mechanism is connected to the second supporting plate 11, and the top of the lifting adjusting mechanism is connected to the first supporting plate 2. Specifically, in this embodiment, the length of the second support plate 11 is equal to the length of the first support plate 2, the width of the second support plate 11 is greater than the width of the first support plate 2, auxiliary support portions are evenly distributed on two sides of the second support plate 11 in the width direction, and the auxiliary support portions are used for increasing the support area of the second support plate 11, so as to improve the support strength of the second support plate 11.

Further, in the present embodiment, referring to fig. 1, the lifting adjusting mechanism includes at least two support arm sets and a second screw 8. Each support arm group is including the last support arm and the lower support arm of mutual articulated, and goes up the top of support arm and articulate with first backup pad 2, and the bottom of lower support arm is articulated with second backup pad 11. The second screw rods 8 are respectively connected with the hinge points of the support arm sets (namely the hinge points of the upper support arm and the lower support arm), and the second screw rods 8 are used for changing the distance between the hinge points. In this embodiment, when the upper support arm and the lower support arm of the first support arm set are opened, the distance between the first support plate 2 and the second support plate 11 will be increased, and when the upper support arm and the lower support arm are close to each other, the distance between the first support plate 2 and the second support plate 11 will be decreased, so as to realize the lifting of the first support plate 2, the first clamping block 1 and the second clamping block 13. In addition, the distance between the hinge points can be changed through the second screw 8, that is, the upper support arm and the lower support arm are opened or closed to each other, so that the lifting motion is realized.

Specifically, in the present embodiment, referring to fig. 1, the lifting adjustment mechanism includes a first support arm set and a second support arm set, the first support arm set includes a first upper support arm 6 and a first lower support arm 10, and the first upper support arm 6 and the first lower support arm 10 are hinged to each other through a sliding hinge 7. The second support arm set includes a second upper support arm 15 and a second lower support arm 17, and the second upper support arm 15 and the second lower support arm 17 are hinged by a fixed hinge 16. One end of the second screw rod 8 penetrates through the sliding hinge 7 and is in threaded connection with the sliding hinge 7, and the other end of the second screw rod 8 penetrates through the fixed hinge 16 and is in rotational connection with the fixed hinge 16. It should be noted that, in the present embodiment, a thread connected to the second screw 8 is provided in the sliding hinge 7, when the second screw 8 rotates, the sliding hinge 7 moves on the second screw 8, and no thread is provided in the fixed hinge 16, so that when the second screw 8 rotates, the fixed hinge 16 does not displace, and the first support plate 2 is lifted and lowered by changing the distance between the fixed hinge 16 and the sliding hinge 7.

Specifically, the sliding hinge 7 includes a first rotating shaft and two first hinge portions, the first rotating shaft is sleeved on one end of the second screw rod 8 and is in threaded connection with the second screw rod 8, the two first hinge portions are respectively disposed on two opposite sides of the first rotating shaft, and the two first hinge portions are respectively used for being hinged to the first upper support arm 6 and the first lower support arm 10.

Similarly, the fixed hinge 16 includes a second rotating shaft and two second hinge portions, the second rotating shaft has an optical hole therein, the second rotating shaft is sleeved on the other end of the second screw 8 and is rotatably connected with the second screw 8, the two second hinge portions are respectively disposed on two opposite sides of the second rotating shaft, and the two second hinge portions are respectively used for being hinged with the second upper supporting arm 15 and the second lower supporting arm 17.

Specifically, in this embodiment, the first upper support arm 6 is connected to the first support plate 2 through the third rotating shaft 5, the first lower support arm 10 is connected to the second support plate 11 through the fourth rotating shaft 12, the second upper support arm 15 is connected to the first support plate 2 through the fifth rotating shaft 14, and the second lower support arm 17 is connected to the second support plate 11 through the sixth rotating shaft 18.

Further, in this embodiment, referring to fig. 1, one end of the second screw 8 is disposed on a second handle 9 for driving the second screw 8 to rotate, and the second handle 9 is rotated to drive the second screw 8 to rotate, so as to drive the fixed hinge and the sliding hinge 7 to approach or move away from each other, thereby driving the first supporting plate 2 to lift. In addition, the other end of the second screw 8 is provided with a positioning block 19 for positioning the fixed hinge 16, and the fixed hinge 16 is prevented from being released from the other end of the second screw 8 by the positioning block 19.

Preferably, in this embodiment, the first upper support arm 6, the first lower support arm 10, the second upper support arm 15, the second lower support arm 17, the fixed hinge 16, the sliding hinge 7, the third rotating shaft 5, the fourth rotating shaft 12, the fifth rotating shaft 14, the sixth rotating shaft 18, and the positioning block 19 are all made of steel materials.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. Support device for supporting the pump body of a centrifugal pump, characterized in that the support device comprises:

2. The support device of claim 1, wherein the support device comprises a first clamping block and a second clamping block, the first clamping block has a first inclined surface, the second clamping block has a second inclined surface, and the first inclined surface and the second inclined surface are oppositely spaced and enclose to form a V-shaped surface for supporting and clamping the pump body.

3. The support device of claim 2, wherein the spacing adjustment mechanism comprises:

a first support plate;

the first screw rod is rotatably arranged on the first supporting plate;

the first screw has:

4. The supporting device as claimed in claim 3, wherein the first supporting plate has a through slot extending along a length direction thereof, the first screw rod is rotatably disposed in the through slot, the first clamping block is sleeved on the first threaded section and slidably disposed in the through slot, and the second clamping block is sleeved on the second threaded section and slidably disposed in the through slot.

5. The supporting device according to claim 4, wherein a supporting partition plate for supporting the first screw rod is disposed in the middle of the through groove, a through hole is formed in the supporting partition plate, the first screw rod is inserted into the through hole, and the supporting partition plate separates the first threaded section and the second threaded section on two sides.

6. The support device of claim 5, further comprising a second support plate disposed opposite and spaced apart from the first support plate, wherein the bottom of the lift adjustment mechanism is coupled to the second support plate and the top of the lift adjustment mechanism is coupled to the first support plate.

7. The support device of claim 6, wherein the lift adjustment mechanism comprises:

8. The support device of claim 7, wherein the lift adjustment mechanism comprises a first set of support arms and a second set of support arms, the first set of support arms comprises a first upper support arm and a first lower support arm, and the first upper support arm and the first lower support arm are hinged by a sliding hinge; the second support arm group comprises a second upper support arm and a second lower support arm, and the second upper support arm and the second lower support arm are hinged through a fixed hinge; one end of the second screw rod penetrates through the sliding hinge and is in threaded connection with the sliding hinge, and the other end of the second screw rod penetrates through the fixed hinge and is in rotating connection with the fixed hinge.

9. The support device as claimed in claim 8, wherein the sliding hinge includes a first shaft and first hinge portions respectively disposed at opposite sides of the first shaft, the first shaft is sleeved on the second screw and is in threaded connection with the second screw, and the first hinge portions are respectively used for hinging the first upper support arm and the first lower support arm.

10. The supporting device as claimed in claim 9, wherein one end of the second screw is provided with a second handle for driving the second screw to rotate, and the other end of the second screw is provided with a positioning block for positioning the fixed hinge.