JP6060066B2 - pump - Google Patents

Description

  The present invention relates to a pump capable of readjusting the shaft core when the foundation is deformed.

  Patent Document 1 describes an installation structure in which a new pump can be installed using an existing installation floor when changing specifications of an existing drainage station. In this installation structure, the pump is provided with a support base installed at the bottom of the water tank below the installation floor so that the load applied to the installation floor can be reduced.

  However, the pump station does not expect the installation floor to tilt due to unexpected loads such as land subsidence or earthquakes. Specifically, when the installation floor of the existing drainage station is tilted, a displacement occurs in the axis of the rotary shaft with respect to the pump casing. The problem is that the pump is installed on the pump floor, which is the installation floor on the water tank, the drive means is installed on the motor floor, which is the second installation floor on the pump floor, and the rotation protruding from the output shaft of the drive means and the pump casing In the case of a two-floor type machine station connected to the shaft, it appears prominently.

  Even if the inclination of the pump casing accompanying the inclination of the pump floor is within an allowable range, the pump cannot be operated if the pump shaft is misaligned. In this case, the part of the pump floor that can be reached by the hand is adjusted by coupling or the like. However, it is necessary to deal with the parts under the pump floor that cannot be reached by large-scale construction for assembling the scaffolding. For this reason, it was virtually impossible to make emergency adjustments immediately after the earthquake.

JP 2002-303285 A

  It is an object of the present invention to enable easy readjustment when a displacement occurs in the shaft center of the pump.

  In order to solve the above-described problem, a pump according to the present invention includes a first pipe that is fixed to an installation floor so as to extend downward, and a first pipe that is disposed on the first pipe and communicates with the first pipe. In a pump comprising: a pump casing having two pipes; an impeller disposed in the pump casing; and a rotating shaft that passes through the second pipe of the pump casing and is connected to the impeller. , Provided at the upper end connecting the second pipe of the first pipe, and provided at the lower end connecting the first pipe of the second pipe and the first sliding contact portion consisting of one of a spherical concave portion and a spherical convex portion. A second slidable contact portion for movably disposing the second pipe on the first pipe, and the second pipe with respect to the first pipe. Fixed part that cannot be moved in place If has a configuration comprising a.

  In this pump, when the installation floor to which the pump casing is fixed is inclined for some reason, the output of the driving means can be output without disassembling the coupling by releasing the fixing by the fixing member and adjusting the position of the second pipe. The axis can be readjusted so that the axis of rotation is located on the same axis. Therefore, when the inclination of the pump casing is within the allowable range, it can be restored to a state where it can be operated immediately without involving a large-scale construction.

The first aspect further includes a lateral movement member that moves the second sliding contact portion located on the first sliding contact portion in the lateral direction . In this way, the second pipe can be finely moved in the lateral direction so as to swing, and the output shaft and the rotation shaft can be adjusted and fixed so as to be located on the same axis.

The second aspect further includes a longitudinally moving member that separates the second sliding contact portion from the first sliding contact portion . If it does in this way, the 1st slidable contact part and 2nd slidable contact part which became hard by aged crimping | bonding can be separated reliably, and can be moved to a horizontal direction.

In the third aspect, the first and second sliding contact portions are formed with different hardnesses. In the fourth aspect, the first sliding contact portion is provided on an annular base plate seat fixed to the upper end of the first pipe, and the second sliding contact portion is fixed to the lower end of the second pipe. that provided on the mounting plate seat forming the annular. If it does in this way, it can prevent that a 1st sliding contact part and a 2nd sliding contact part are seized with the secular vibration and heat by a driving | operation of a pump. As a result, it is possible to reliably maintain a state in which readjustment is always possible.

The fifth aspect further includes a level that is disposed on a member that forms the second sliding contact portion or the second pipe and that can confirm a horizontal position. In this way, it is possible to easily determine whether or not the inclination of the installation floor (pump and shaft) is within an allowable range even if the worker is not a full-time worker.

In the sixth aspect, the second pipe is connected to a flexible pipe that is deformable in the axial direction. In this way, the connection state with the downstream side of the pump can be reliably maintained. In this case, it is preferable to provide a support member capable of adjusting the overall length on the opposite side of the flexible pipe of the second pipe. In this way, the second pipe can be reliably supported against thrust even after adjustment of the second pipe.

The first pipe is a pumping pipe provided with a suction bell at the lower end, the second pipe is a bent pipe connecting the water supply pipe extending in the lateral direction and the pumped pipe, and the rotating shaft is bent. The rotating shaft driving means is disposed on a second installation floor provided above the installation floor, and the output shaft of the driving means and the rotation shaft are connected via a coupling. They are connected by an intermediate shaft. By doing so, the load of the pump casing and the load of the driving means can be distributed to the two floors, so that the rigidity required for the installation floor can be reduced.

In this case, a second base plate seat provided on the second installation floor side and having a first sliding contact portion composed of one of a spherical concave portion and a spherical convex portion, and provided on the driving means side, the spherical concave portion and the spherical surface are provided. A second installation plate seat comprising the other of the convex portions and having a second sliding contact portion for movably disposing the drive means on the second base plate seat; and the second base plate seat A second fixing member for fixing the second installation plate seat to a predetermined position so as not to move. If it does in this way, it can adjust so that the output shaft and rotating shaft of the drive means connected via the intermediate shaft may be located on the same axis line reliably.

Moreover, it is preferable to provide a downward swing member that extends downward from the second installation floor side, and a mark portion that is located below the downward swing member and indicates an initial installation position of the pump casing. In this way, even if it is not a full-time worker, it can be easily determined whether or not the pump can be operated. Further, the setting position can be easily determined during the adjustment work.

  In the pump of the present invention, when the installation floor is inclined for some reason, the output shaft and the rotary shaft are positioned on the same axis without disassembling the coupling by adjusting the position of the second pipe by the fixing member. Can be readjusted. Therefore, it can be restored to a state where it can be operated immediately without involving a large-scale construction.

The front view which shows the pump of embodiment of this invention. Schematic which shows the principal part of the pump of FIG. Sectional drawing which shows the axial center adjustment mechanism of a pump case. Sectional drawing which shows the axial center adjustment mechanism of a drive motor. The perspective view which shows the axial center adjustment mechanism of a pump case. The perspective view which shows the downward swing member and mark part which confirm the installation position of the upper and lower sides. The perspective view which shows a spirit level. The front view which shows the 1st state in which the installation floor inclined. The front view which shows the state which readjusted the shaft core in the 1st state in which the installation floor inclined. The front view which shows the 2nd state in which the installation floor inclined. The front view which shows the state which readjusted the shaft core in the 2nd state in which the installation floor inclined. The front view which shows the modification of a pump.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows a vertical shaft pump 10 according to an embodiment of the present invention. In this vertical shaft pump 10, a pump casing 11 extending in the vertical direction is installed on a pump floor 2 that is a first installation floor, and a drive motor 24 that is a drive means is a motor floor that is a second installation floor on the pump floor 2. It is a two-floor type installed in No.4. In the present embodiment, even if the output shaft 25 of the drive motor 24 and the axis of the rotary shaft 23 of the pump casing 11 are misaligned for some reason, it can be easily readjusted and restored to an operable state. To.

  The pump station where the vertical shaft pump 10 is installed is provided by placing concrete or the like. This pump station is provided with a suction water tank 1 for temporarily storing water such as rainwater flowing in from an inflow side conduit (not shown). The upper part of the suction water tank 1 is covered with a pump floor 2 provided so as to extend in the horizontal direction at a predetermined interval from the bottom. The pump floor 2 is provided with a pump insertion hole 3 communicating with the suction water tank 1. The upper part of the pump floor 2 is covered with a motor floor 4 provided so as to extend in the horizontal direction at a predetermined interval from the bottom. A shaft insertion hole 5 is provided in the motor floor 4 so as to be positioned on the same axis of the pump insertion hole 3. The rigidity required for the pump floor 2 is reduced by suspending and installing the pump casing 11 on the pump floor 2 and installing the drive motor 24 on the motor floor 4. The space between the pump floor 2 and the motor floor 4 constitutes the pump chamber 6, and the space on the motor floor 4 constitutes the control chamber 7.

  The pump casing 11 is fixed in a state of being inserted into the pump insertion hole 3 of the pump floor 2 from above. The pump casing 11 includes a pumping pipe 12 that is a first pipe disposed so as to extend downward from the pump insertion hole 3 and a discharge elbow 16 that is a second pipe disposed on the pumping pipe 12.

  The pumping pipe 12 is provided with a base plate 13 for fixing on the pump insertion hole 3 of the pump floor 2 at the upper end, and is piped so as to extend in the vertical direction in the suction water tank 1. The base plate 13 is a flange-shaped member that protrudes radially outward from the upper end of the pumped-up pipe 12. An impeller case 14 is connected to the lower end of the pumping pipe 12, and a suction bell mouth 15 is connected to the lower end of the impeller case 14. The impeller case 14 has an elliptic cylindrical shape that bulges outward in the radial direction. The suction bell mouth 15 has a substantially conical cylindrical shape that gradually expands in the downward direction, and a suction port including a lower end opening is disposed to face the bottom of the suction water tank 1 at a predetermined distance.

  The discharge elbow 16 is a bent pipe that is bent 90 degrees to change the vertical water flow through the pumping pipe 12 to the horizontal direction. The discharge elbow 16 is provided with an upstream flange portion 17 for disposing on the pumping pipe 12 on the lower end (upstream) side, and a downstream flange portion 18 for connection with the upper end (downstream) side. Yes. In addition, the discharge elbow 16 is provided with a frame base 19 so as to form a cylindrical shape so as to be positioned on the same axis as the axis of the pumped-up pipe 12.

  A water supply pipe 20 communicating with a discharge tank (not shown) is connected to the downstream flange portion 18 of the discharge elbow 16 which is a discharge port of the pump casing 11. The water supply pipe 20 is piped so as to extend in the lateral direction, and is fixed on the pump floor 2. In the present embodiment, a flexible pipe 21 that can be deformed in the axial direction and the radial direction is interposed between the discharge elbow 16 and the water supply pipe 20.

  In the impeller case 14, an impeller 22 for discharging the liquid in the suction water tank 1 to the downstream side is disposed. The impeller 22 is connected to a lower end of a rotary shaft 23 that is disposed penetrating along the axis of the pumping pipe 12. The rotary shaft 23 is rotatably supported in the pumped water pipe 12 by an underwater bearing (not shown). The upper end of the rotating shaft 23 passes through the frame 19 of the discharge elbow 16 and is located in the pump chamber 6. The rotating shaft 23 and the through-hole of the discharge elbow 16 are liquid-tightly sealed by a shaft seal.

  The drive motor 24 is an electric type, and the motor casing 26 is fixed to the motor floor 4 so that the output shaft 25 is positioned in the shaft insertion hole 5. The output shaft 25 is installed so that the axis of rotation is coincident with the axis of rotation 23. The output shaft 25 and the rotary shaft 23 are connected via an intermediate shaft 27. The rotary shaft 23 and the intermediate shaft 27, and the output shaft 25 and the intermediate shaft 27 are connected by couplings 28A and 28B, respectively. As the couplings 28A and 28B, flexible shaft couplings that allow the positional deviation (inclination) of the shafts of the rotary shaft 23 and the intermediate shaft 27 and the output shaft 25 and the intermediate shaft 27 within a set allowable range are used. However, since a universal joint joint, which is one of the flexible shaft joints, requires regular maintenance, it is preferable to use other flexible shaft joints.

  As shown in FIG. 2, the vertical shaft 10 of the present embodiment has a misalignment between the axis of the rotary shaft 23 of the pump casing 11 and the axis of the output shaft 25 of the drive motor 24 arranged on different floors 2 and 4. In such a case, shaft adjustment mechanisms 29 and 49 are provided to enable readjustment. The first axis adjustment mechanism 29 is provided between the pumping pipe 12 and the discharge elbow 16 of the pump casing 11, and the second axis adjustment mechanism 49 is provided between the motor floor 4 and the motor casing 26. Yes.

  As shown in FIGS. 3A and 4, the lower first axis adjusting mechanism 29 is fixed to the base plate seat 30 fixed to the base plate 13 of the pumped water pipe 12 and the upstream flange portion 17 of the discharge elbow 16. And an installation plate seat 36. Further, the first axis adjusting mechanism 29 cannot move the installation plate seat 36 (lower second sliding contact portion 39) disposed on the base plate seat 30 (lower first sliding contact portion 33) at a desired position. A fixing member 40 for fixing to the vertical direction, a horizontal movement member 44 for moving in the horizontal direction, and a vertical movement member 47 for moving in the vertical direction.

  The base plate seat 30 is an annular member provided with a through hole 31 having the same inner diameter as the inner diameter of the water pumping pipe 12. On the outer peripheral portion of the base plate seat 30, bracket portions 32 for bolting and fixing to the base plate 13 of the pumped water pipe 12 are provided with a predetermined interval in the circumferential direction. Further, on the upper surface of the base plate seat 30, a lower first sliding contact portion 33 formed of a spherical concave portion that is depressed downward so as to have a predetermined curvature is provided. The base plate seat 30 has an annular groove 35 in which a seal member 34 is disposed for liquid-tight sealing with the installation plate seat 36 so as to be positioned on the lower first sliding contact portion 33. Is provided.

  The installation plate seat 36 is an annular member including a through hole 37 having the same inner diameter as the inner diameter of the discharge elbow 16. On the inner peripheral portion of the installation plate seat 36, a bolting portion 38 for fixing the insertion elbow 16 to the insertion hole 17a of the upstream flange portion 17 through the bolt is provided. A lower second slidable contact portion 39 is provided on the lower surface of the installation plate seat 36. The lower second slidable contact portion 39 is a spherical convex portion protruding downward so as to have the same curvature as the lower first slidable contact portion 33. By disposing the lower second sliding contact portion 39 on the lower first sliding contact portion 33 of the base plate seat 30, the angle and interval of the axis of the installation plate seat 36 with respect to the axis of the base plate seat 30 are within the adjustment range. To adjust (move).

  The base plate seat 30 and the installation plate seat 36 are formed of materials having different hardnesses in order to prevent the base plate seat 30 and the installation plate seat 36 from being seized together by aged operation (vibration or heat). However, it is also possible to use a material having the same hardness, apply hard chrome plating to one of the lower sliding contact portions 33, 39, and form only the lower sliding contact portions 33, 39 with different hardnesses.

  The fixing member 40 is a bolt that is fixed to the base plate seat 30 so as not to move in a state where the installation plate seat 36 is adjusted to a predetermined position. On the lower first sliding contact portion 33 of the base plate seat 30, bolt fastening portions 41 are provided with a predetermined interval in the circumferential direction. On the lower second slidable contact portion 39 of the installation plate seat 36, the large diameter so as to be located on the same axis line as the bolt fastening portion 41 in a state where it is disposed at the initial position located on the same axis line as the base plate seat 30. Bolt loose fitting holes 42 are provided. A spherical washer 43 is disposed on the bolt loose fitting hole 42, and the fixing member 40 is fastened from the spherical washer 43 to the bolt fastening portion 41 through the bolt loose fitting hole 42. Thereby, the installation plate seat 36 moved to the desired position with respect to the base plate seat 30 can be fixed without rattling. Further, the installation plate seat 36 is movable in the radial direction within the range of the bolt loose fitting hole 42.

  The lateral movement member 44 is a jack bolt that moves the installation plate seat 36 laterally with respect to the base plate seat 30. An annular frame 45 is provided on the outer periphery of the lower first sliding contact portion 33 of the base plate seat 30, and bolting holes 46 are provided in the annular frame 45 at a predetermined interval in the circumferential direction. All laterally moving members 44 are loosened outward in the radial direction, predetermined laterally moving members 44 are fastened to the bolting holes 46, and the outer peripheral surface of the mounting plate seat 36 is pressed in the radial direction with the distal ends of the laterally moving members 44. Thus, the installation plate seat 36 can be moved in the lateral direction. Further, the lateral movement can be restricted by bringing all the lateral movement members 44 into contact with the outer peripheral surface of the installation plate seat 36 in the state of being moved to the desired position.

  The vertical movement member 47 is a jack bolt that moves the installation plate seat 36 upward in the vertical (vertical) direction with respect to the base plate seat 30. Bolt holes 48 that penetrate along the axial direction are provided on the outer periphery of the installation plate seat 36. The vertical movement member 47 is fastened to the bolting hole 48 and the upper surface of the base plate seat 30 is pressed by the tip of the vertical movement member 47, so that the installation plate seat 36 is moved in the standing direction and separated from the base plate seat 30. Thereby, it becomes easy to move the installation plate seat 36 in the lateral direction by the operation of the lateral movement member 44.

  As shown in FIGS. 2 and 3B, the second axis adjusting mechanism 49 includes a second base plate 50 disposed on the motor floor 4, and a second base plate seat 53 disposed on the base plate 50. And a second installation plate seat 56 provided integrally with the motor casing 26. Further, the second axis adjusting mechanism 49 fixes the installation plate seat 56 (upper second slidable contact portion 58) disposed on the base plate seat 53 (upper first slidable contact portion 55) so as not to move at a desired position. A second fixing member 59 for moving, first and second horizontal moving members 63 and 66 for moving in the horizontal direction, and a second vertical moving member 69 for moving in the vertical direction.

  The base plate 50 is an annular member that includes a through hole 51 having the same inner diameter as the inner diameter of the shaft insertion hole 5. On the outer peripheral portion of the base plate 50, bracket portions 52 for fixing on the motor floor 4 are provided at predetermined intervals in the circumferential direction. The through hole 51 is fixed so as to be located on the same axis as the shaft insertion hole 5.

  The base plate seat 53 is an annular member having a through hole 54 having the same inner diameter as the inner diameter of the through hole 51. On the upper surface of the base plate seat 53, an upper first slidable contact portion 55 formed of a spherical convex portion protruding upward so as to form a predetermined curvature is provided.

  The mounting plate seat 56 is a flange-like member that protrudes radially outward from the outer peripheral portion of the lower end of the motor casing 26 that includes a through hole 57 having the same inner diameter as the inner diameter of the through hole 51. On the lower surface of the installation plate seat 56, an upper second sliding contact portion 58 is provided that is a spherical concave portion that is recessed upward so as to have the same curvature as the upper first sliding contact portion 55. By arranging the upper second sliding contact portion 58 on the upper first sliding contact portion 55 of the base plate seat 53, the angle and interval of the axis of the installation plate seat 56 with respect to the axis of the base plate seat 53 are adjusted within the adjustment range. (Move).

  The base plate 50 and the base plate seat 53 are formed of materials having different hardness, and the base plate seat 53 and the installation plate seat 56 are formed of materials having different hardness. However, it may be formed of a material having the same hardness, and hard chrome plating may be applied to one of the upper surface of the base plate 50 and the lower surface of the base plate seat 53, and hard chrome plating may be applied to one of the lower sliding contact portions 55 and 58.

  The fixing member 59 is a bolt that is fixed so as not to move in a state where the installation plate seat 56 is adjusted to a predetermined position with respect to the base plate seat 53. Similarly to the first fixing member, a bolt fixing portion 60 is provided in the upper first sliding contact portion 55 of the base plate seat 53, and a bolt loose fitting hole 61 is provided in the upper second sliding contact portion 58 of the installation plate seat 56. Yes. A spherical washer 62 is provided on the bolt loose fitting hole 61, and the fixing member 59 is fastened from the spherical washer 62 through the bolt loose fitting hole 61 to the bolt fastening portion 60. Thereby, the installation plate seat 56 moved to the desired position with respect to the base plate seat 53 can be fixed without rattling. Further, the installation plate seat 56 is movable in the radial direction within the range of the bolt loose fitting hole 61.

  The first lateral movement member 63 is a jack bolt that moves the base plate seat 53 laterally with respect to the base plate 50. A first annular frame 64 is provided on the outer peripheral portion of the base plate 50, and bolt fastening holes 65 are provided in the first annular frame 64 at a predetermined interval in the circumferential direction. All the first lateral movement members 63 are loosened outward in the radial direction, the predetermined first lateral movement members 63 are tightened in the bolting holes 65, and the outer peripheral surface of the base plate seat 53 is diametrically formed at the tip of the first lateral movement member 63. By pressing in the direction, the base plate seat 53 can be moved in the lateral direction. Further, the movement in the lateral direction can be restricted by bringing each first lateral movement member 63 into contact with the outer peripheral surface of the base plate seat 53 in a state where it is moved to the desired position.

  The second lateral movement member 66 is a jack bolt that moves the installation plate seat 56 laterally with respect to the base plate seat 53. A second annular frame 67 is provided on the outer peripheral portion of the upper first sliding contact portion 55 of the base plate seat 53, and bolt fastening holes 68 are provided in the second annular frame 67 at a predetermined interval in the circumferential direction. All the second lateral movement members 66 are loosened outward in the radial direction, the predetermined second lateral movement members 66 are fastened to the bolting holes 68, and the outer peripheral surface of the installation plate seat 56 is fixed at the tip of the second lateral movement member 66. By pressing in the radial direction, the installation plate seat 56 can be moved in the lateral direction. In addition, the movement in the lateral direction can be restricted by bringing each second lateral movement member 66 into contact with the outer peripheral surface of the installation plate seat 56 in a state where it is moved to the desired position.

  The longitudinal movement member 69 is a jack bolt that moves the installation plate seat 56 upward in the vertical (longitudinal) direction with respect to the base plate seat 53. Bolt holes 70 that penetrate along the axial direction are provided in the outer peripheral portion of the installation plate seat 56. The vertical movement member 69 is fastened to the bolting hole 70, and the upper surface of the base plate seat 53 is pressed by the tip of the vertical movement member 69, so that the installation plate seat 56 is moved in the standing direction and separated from the base plate seat 53. Thereby, it becomes easy to move the installation plate seat 56 in the lateral direction by the operation of the second lateral movement member 66.

  As shown in FIG. 2, in this embodiment, the center of curvature of the lower sliding contact portions 33 and 39 curved downward in the first axis adjustment mechanism 29 and the upper curve curved upward in the second axis adjustment mechanism 49. The curvature centers of the sliding contact portions 55 and 58 are set to be located at the same point. In addition, the center of curvature X is set so as to be located in the coupling 28A in which the rotary shaft 23 and the intermediate shaft 27 are connected. Thereby, the position of the shaft core is adjusted with reference to the coupling 28A.

  As shown in FIGS. 1 and 5, the vertical shaft pump 10 of this embodiment includes a vertical positional relationship (axial core) between a pump casing 11 disposed on the pump floor 2 and a drive motor 24 disposed on the motor floor 4. An axial center position determination mechanism 71 is provided for easily determining the positional deviation). The shaft center position determination mechanism 71 is a downward swing member 72 that is suspended by its own weight and maintains a state of extending vertically downward. The downward swing member 72 is connected to the lower end of the linear member 73 and is arranged to extend downward from the motor casing 26 on the motor floor 4 side through the shaft insertion hole 5 to the pump floor 2 side. The upper end of the linear member 73 is connected to the base plate seat 53. Further, the pump casing 11 is provided with a protruding portion 74 having a + -shaped mark portion 74 a indicating the initial installation position of the pump casing 11 on the frame base 19 positioned below the swing-down member 72. In the initial installation position, the downward swing member 72 is positioned on the mark portion 74a. When the floors 2 and 4 are inclined for some reason or the pump casing 11 or the drive motor 24 is inclined, the downward swing member 72 is separated from the mark 74a.

  As shown in FIGS. 1 and 6, it is confirmed whether or not the discharge elbow 16 and the drive motor 24 are installed horizontally in the vertical shaft pump 10 of the present embodiment and whether or not the horizontal state is maintained. Levels 75A and 75B are provided for this purpose. The first level 75A is disposed on the upper surface of the frame 19 of the discharge elbow 16 formed to be a horizontal plane in the initial installation state. The second level 75B is disposed on the upper surface of the installation plate seat 56 of the motor casing 26 formed so as to be horizontal in the initial installation state. The spirit levels 75A and 75B include an upper surface portion 76 that bulges upward so as to form a spherical shape. The upper surface portion 76 is made of a transparent member, and includes an index line 77 having a circular shape in a plan view that indicates whether or not it is within an allowable range. Further, the inside is filled with a liquid so that bubbles 78 smaller than the index line 77 are included. Whether or not the discharge elbow 16 and the installation plate seat 56 are installed horizontally (within an allowable range) can be determined based on whether the bubble 78 is positioned inside or outside the index line 77.

  As shown in FIG. 1, in the vertical shaft 10 of the present embodiment, a support member 79 is disposed on the discharge elbow 16 so as to be located on the opposite side of the flexible tube 21. The support member 79 includes a first arm portion 80 fixed to the side surface of the frame 19 of the discharge elbow 16 and a second arm portion 81 fixed to the pump floor 2. These arm portions 80 and 81 are located on the same axis, and are provided to extend at an arbitrary inclination angle (for example, 45 degrees) with respect to the pump floor 2. Spherical seats 82 and 82 are disposed at the free ends of the arm portions 80 and 81 facing each other, and the outer peripheral portion is held movably by a holding member 83. A trapezoidal space is provided between the ball seats 82, 82, and a wedge member 84 is disposed in the space. A pair of arm portions 80, 81 are continuous via the wedge member 84, and the discharge elbow 16 can be supported against the thrust applied to the pump casing 11 by the provision of the flexible tube 21. Further, when the pump casing 11 is inclined, the end portions of the arm portions 80 and 81 approach or separate from each other. Then, when the wedge member 84 having an inverted trapezoidal shape moves, the pair of arm portions 80 and 81 are maintained through the wedge member 84 (the overall length can be adjusted).

  When installing the vertical shaft pump 10 in the pump station, for example, the impeller case 14 and the suction bell mouth 15 are inserted into the pump insertion hole 3 of the pump floor 2, and the base plate 13 is fixed to the pump floor 2. A base plate seat 30 is fixed to the upper surface of the base plate 13. Next, the rotary shaft 23 connected to the impeller 22 is disposed inside the pumping pipe 12, and the discharge elbow 16 having the installation plate seat 36 fixed thereto is disposed above the pumping pipe 12.

  At this time, the frame 19 of the discharge elbow 16 is positioned horizontally based on the level 75A, and the axis of the pumping pipe 12, the axis of the rotary shaft 23, and the axis of the frame 19 of the discharge elbow 16 are positioned on the same line. Thus, the adjustment is made by the lateral movement member 44, and the pumping pipe 12 and the discharge elbow 16 are fixed by the fixing member 40. Further, the flexible pipe 21 and the water supply pipe 20 are connected to the downstream flange portion 18 of the discharge elbow 16, and a support member 79 is disposed between the discharge elbow 16 and the pump floor 2.

  Next, the base plate 50 is fixed on the shaft insertion hole 5 of the motor floor 4, and the base plate seat 53 is disposed on the base plate 50. Next, the motor casing 26 having the installation plate seat 56 is disposed. At this time, the second lateral movement member 66 adjusts so that the installation plate seat 56 is positioned horizontally based on the level 75B. Further, the position of the base plate 50 is adjusted by the first lateral movement member 63 so that the downward swing member 72 is positioned on the mark portion 74a.

  Finally, an intermediate shaft 27 is disposed between the rotating shaft 23 and the output shaft 25 of the drive motor 24 positioned vertically above the rotating shaft 23, and is connected by couplings 28A and 28B. As a result, as shown in FIG. 1, a two-bed vertical shaft pump 10 is constructed in which the pump casing 11 is suspended from the pump floor 2 and the drive motor 24 including control means is installed on the motor floor 4.

  When an unexpected load is generated in the pumping station due to an earthquake or the like, the vertical shaft pump 10 confirms the level levels 75A and 75B disposed on the floors 2 and 4 so as to install the discharge elbow 16 and the drive motor 24. The inclination of the seat 56 can be determined. Further, by confirming the swinging member 72, the positional relationship between the drive motor 24 and the pump casing 11 (the positional deviation between the output shaft 25 and the rotary shaft 23) can be determined. That is, it is possible to easily determine whether or not the vehicle can be operated by checking the levelers 75A and 75B and the downward swing member 72 without calling a specialized worker who constructs the vertical shaft pump 10. When the inclination of the motor casing 26 is within the allowable range, the misalignment between the axes of the output shaft 25 and the rotating shaft 23 can be readjusted, and the operation can be resumed immediately.

  Specifically, as shown in FIG. 7A, the pump floor 2 tilts upward from the left side to the right side with an inclination angle α with respect to the horizontal line, and the motor floor 4 tilts upward with a different direction from the right side to the left side. Inclined at β. In this case, the axis L1 of the rotating shaft 23 is inclined at an inclination angle α with respect to a reference line L0 extending in the vertical direction, and the axis L2 of the output shaft 25 is inclined at an inclination angle β with respect to the reference line L0. Then, the axis L3 of the intermediate shaft 27 is inclined according to the inclination angles α and β.

  Alternatively, as shown in FIG. 8A, the pump floor 2 tilts upward from the left side to the right side with an inclination angle α with respect to the horizontal line, and the motor floor 4 tilts upward with the inclination angle γ in the same direction from the left side to the right side. To do. In this case, the axis L1 of the rotating shaft 23 is inclined at an inclination angle α with respect to a reference line L0 extending in the vertical direction, and the axis L2 of the output shaft 25 is inclined at an inclination angle γ with respect to the reference line L0. The axis L3 of the intermediate shaft 27 is inclined according to the inclination angles α and γ.

  Even if the floors 2 and 4 are inclined as described above, the pump casing 11 and the water supply pipe 20 can be reliably maintained in the connected state by the deformable flexible pipe 21.

  When readjusting the positional misalignment between the shafts of the output shaft 25 and the rotary shaft 23, first, the fixing member 40 and the lateral movement member 44 of the first shaft core adjusting mechanism 29 are loosened, and the holding member 83 and the wedge of the support member 79 are loosened. The member 84 is loosened and the position (tilt) of the discharge elbow 16 of the pump casing 11 is adjusted. Specifically, while watching the level 75A, the longitudinally moving member 47 positioned on the inclined lower side of the installation plate seat 36 is tightened until the installation plate seat 36 becomes horizontal. When the installation plate seat 36 becomes horizontal, the lateral movement member 44 at a predetermined position is tightened to adjust the axis L1 of the rotating shaft 23 to coincide with the reference line L0. When the axis L1 coincides with the reference line L0, all the laterally moving members 44 are brought into contact with the installation plate seat 36 and positioned, and the fixing member 40 is tightened and fixed so as not to move. Further, the wedge member 84 is driven into the gap between the pair of arm portions 80 and 81 to adjust the total length of the support member 79 so that the thrust during the operation after readjustment can be reliably counteracted.

  Next, the fixing member 59 of the second axis adjusting mechanism 49 is loosened, and the first and second laterally moving members 63 and 66 are loosened to adjust the position (tilt) of the motor casing 26. Specifically, while watching the level 75B, the longitudinally moving member 69 located below the installation plate seat 56 is tightened until the installation plate seat 56 becomes horizontal. When the installation plate seat 56 becomes horizontal, the second lateral movement member 66 at a predetermined position is tightened while watching the downward swing member 72, and the axis L2 of the output shaft 25 is adjusted so as to coincide with the reference line L0. Further, in the adjustment by the second lateral movement member 66, when the axis L2 and the reference line L0 cannot be matched, the base plate seat 53 is moved by adjustment of the first lateral movement member 63. When the axis L2 coincides with the reference line L0, all the second lateral movement members 66 are brought into contact with the installation plate seat 56 and positioned, and the fixing member 59 is tightened and fixed so as not to move. Further, all the first lateral movement members 63 are positioned in contact with the base plate seat 53.

  The intermediate shaft 27 is adjusted in conjunction with the axis adjustment of the rotating shaft 23 and the output shaft 25. Accordingly, as shown in FIGS. 7B and 8B, the axes of the rotary shaft 23, the output shaft 25, and the intermediate shaft 27 inclined by the inclination of the floors 2 and 4 can be positioned on a straight line. In particular, in the position adjustment operation of the rotary shaft 23 and the output shaft 25 that are separated from each other in the vertical direction, the set position can be easily determined by the downward swing member 72 that is suspended from the motor floor 4 side.

  Thus, in the vertical shaft pump 10 of the present invention, spherical lower sliding contact portions 33 and 39 are provided on the pumping pipe 12 and the discharge elbow 16 of the pump casing 11, and the motor floor 4 side and the motor casing 26 side are provided. Since the spherical upper slidable contact portions 55 and 58 are provided, the output shaft 25 and the rotary shaft 23 can be readjusted so as to be positioned on the same axis without disassembling the couplings 28A and 28B.

  Therefore, when the inclination of the pump casing 11 is within the allowable range, the pump casing 11 can be immediately recovered without being accompanied by a large-scale construction. In particular, in the present embodiment, the lateral movement members 44 and 66 are provided and can be finely moved in the lateral direction so as to swing the discharge elbow 16 and the motor casing 26, so that the output shaft 25 and the rotary shaft 23 are located on the same axis. Can be adjusted and fixed securely. In addition, since the longitudinally moving members 47 and 69 are provided, the first sliding contact portions 33 and 55 and the second sliding contact portions 39 and 58 that have been hardened by aged pressure bonding are reliably separated and moved in the lateral direction. Can be made.

  On the other hand, when the pump casing 11 is inclined beyond the allowable range, a spacer such as an epoxy resin is disposed between the pump floor 2 and the base plate 13 so that the inclination of the pump casing 11 is within the allowable range. The same adjustment is performed by the single axis adjusting mechanism 29. Similarly, when the motor casing 26 is inclined beyond the allowable range, a spacer such as an epoxy resin is disposed between the motor floor 4 and the base plate 50 so that the inclination of the motor casing 26 is within the allowable range. Adjustment is performed by the second axis adjustment mechanism 49. In addition, a plurality of axis adjustment mechanisms 29 and 49 can be arranged in a plurality of stages so that the adjustable range can be expanded.

  In addition, the pump of this invention is not limited to the structure of the said embodiment, A various change is possible.

  For example, in the above-described embodiment, the description has been given using the two-bed vertical shaft pump 10 in which the drive motor 24 is disposed on the motor floor 4 on the pump floor 2. However, as shown in FIG. The present invention can be similarly applied to the single-floor vertical shaft pump 10 in which the placement unit 8 is formed. That is, even if the pump casing 11 and the drive motor 24 are disposed on the same pump floor 2, the deformation of the pump floor 2 is often not uniform. In particular, when the motor mounting portion 8 is placed, the deformation of the pump floor 2 becomes uneven. Even in this case, by arranging the first axis adjusting mechanism 29 in the pump casing 11, the rotary shaft 23 and the output shaft 25 connected via the transmission 85 are readjusted in a predetermined direction in which operation is possible. Can do.

  The fixed member 40, the laterally moving member 44, and the longitudinally moving member 47 are not limited to the above-described configuration, and any configuration that can achieve the same object as described above can be applied. The pump is not limited to the pump 10 having the rotary shaft 23 extending in the vertical direction, and the impeller case 14 is piped so that the axis extends in the horizontal direction, and the rotary shaft 23 extends in the horizontal direction. It may be a horizontal axis pump provided.

1 ... Suction water tank 2 ... Pump floor (installation floor)
4 ... Motor floor (second installation floor)
10 ... Vertical shaft pump (pump)
11 ... Pump casing 12 ... Pumping pipe (first pipe)
14 ... Impeller case 15 ... Suction bell mouth 16 ... Discharge elbow (second piping)
DESCRIPTION OF SYMBOLS 20 ... Water supply pipe 21 ... Flexible pipe 22 ... Impeller 23 ... Rotating shaft 24 ... Drive motor (drive means)
DESCRIPTION OF SYMBOLS 25 ... Output shaft 26 ... Motor casing 27 ... Intermediate shaft 28A, 28B ... Coupling 29 ... 1st axis adjustment mechanism 30 ... Base plate seat 33 ... Lower first sliding contact part 36 ... Installation plate seat 39 ... Lower second Sliding contact portion 40 ... fixing member 44 ... horizontal moving member 47 ... vertical moving member 49 ... second axis adjusting mechanism 50 ... base plate 53 ... base plate seat 55 ... upper first sliding contact portion 56 ... installing plate seat 58 ... upper second seat Sliding contact portion 59 ... fixed member 63 ... first laterally moving member 66 ... second laterally moving member 69 ... longitudinally moving member 71 ... shaft core position determining mechanism 72 ... downward swing member 74a ... marking parts 75A, 75B ... level 79 Support member 80 ... 1st arm part 81 ... 2nd arm part 84 ... Wedge member

Claims (15)

A pump casing having a first pipe fixed to the installation floor and arranged to extend downward; and a second pipe arranged on the first pipe and communicated with the first pipe;
An impeller disposed in the pump casing;
A rotating shaft connected to the impeller through the second pipe of the pump casing;
Drive means having an output shaft coupled to the rotating shaft;
A pump comprising:
A first sliding contact portion provided at an upper end connecting the second piping of the first piping, and comprising one of a spherical concave portion and a spherical convex portion;
A second sliding contact is provided at a lower end connecting the first pipe of the second pipe, and is composed of the other one of a spherical concave portion and a spherical convex portion, and movably disposes the second pipe on the first pipe. And
A fixing member that fixes the second pipe to a predetermined position so as not to move with respect to the first pipe;
A pump comprising: a lateral movement member that moves the second sliding contact portion positioned on the first sliding contact portion in a lateral direction . The pump according to claim 1, further comprising a longitudinally moving member that separates the second sliding contact portion with respect to the first sliding contact portion. A pump casing having a first pipe fixed to the installation floor and arranged to extend downward; and a second pipe arranged on the first pipe and communicated with the first pipe;
An impeller disposed in the pump casing;
A rotating shaft connected to the impeller through the second pipe of the pump casing;
Drive means having an output shaft coupled to the rotating shaft;
A pump comprising:
A first sliding contact portion provided at an upper end connecting the second piping of the first piping, and comprising one of a spherical concave portion and a spherical convex portion;
A second sliding contact is provided at a lower end connecting the first pipe of the second pipe, and is composed of the other one of a spherical concave portion and a spherical convex portion, and movably disposes the second pipe on the first pipe. And
A fixing member that fixes the second pipe to a predetermined position so as not to move with respect to the first pipe;
A pump comprising: a longitudinally moving member that separates the second sliding contact portion relative to the first sliding contact portion .   The pump according to any one of claims 1 to 3, wherein the first and second sliding contact portions are formed with different hardnesses. A pump casing having a first pipe fixed to the installation floor and arranged to extend downward; and a second pipe arranged on the first pipe and communicated with the first pipe;
An impeller disposed in the pump casing;
A rotating shaft connected to the impeller through the second pipe of the pump casing;
Drive means having an output shaft coupled to the rotating shaft;
A pump comprising:
A first sliding contact portion provided at an upper end connecting the second piping of the first piping, and comprising one of a spherical concave portion and a spherical convex portion;
A second sliding contact is provided at a lower end connecting the first pipe of the second pipe, and is composed of the other one of a spherical concave portion and a spherical convex portion, and movably disposes the second pipe on the first pipe. And
A fixing member that fixes the second pipe to a predetermined position so as not to move with respect to the first pipe ;
The pump according to claim 1, wherein the first and second sliding contact portions are formed with different hardnesses . The first sliding contact portion is provided on an annular base plate seat fixed to the upper end of the first pipe, and the second sliding contact portion is an annular installation plate seat fixed to the lower end of the second pipe. The pump according to any one of claims 1 to 5 , wherein the pump is provided. A pump casing having a first pipe fixed to the installation floor and arranged to extend downward; and a second pipe arranged on the first pipe and communicated with the first pipe;
An impeller disposed in the pump casing;
A rotating shaft connected to the impeller through the second pipe of the pump casing;
Drive means having an output shaft coupled to the rotating shaft;
A pump comprising:
A first sliding contact portion provided at an upper end connecting the second piping of the first piping, and comprising one of a spherical concave portion and a spherical convex portion;
A second sliding contact is provided at a lower end connecting the first pipe of the second pipe, and is composed of the other one of a spherical concave portion and a spherical convex portion, and movably disposes the second pipe on the first pipe. And
A fixing member that fixes the second pipe to a predetermined position so as not to move with respect to the first pipe ;
The first sliding contact portion is provided on an annular base plate seat fixed to the upper end of the first pipe, and the second sliding contact portion is an annular installation plate seat fixed to the lower end of the second pipe. A pump characterized by being provided . The level which can confirm a horizontal position is arrange | positioned at the member which formed the said 2nd sliding contact part, or the said 2nd piping, The any one of Claim 1 thru | or 7 characterized by the above-mentioned. Pump. A pump casing having a first pipe fixed to the installation floor and arranged to extend downward; and a second pipe arranged on the first pipe and communicated with the first pipe;
An impeller disposed in the pump casing;
A rotating shaft connected to the impeller through the second pipe of the pump casing;
Drive means having an output shaft coupled to the rotating shaft;
A pump comprising:
A first sliding contact portion provided at an upper end connecting the second piping of the first piping, and comprising one of a spherical concave portion and a spherical convex portion;
A second sliding contact is provided at a lower end connecting the first pipe of the second pipe, and is composed of the other one of a spherical concave portion and a spherical convex portion, and movably disposes the second pipe on the first pipe. And
A fixing member that fixes the second pipe to a predetermined position so as not to move with respect to the first pipe ;
A pump comprising: a member that forms the second sliding contact portion or a level that is disposed on the second pipe and that can confirm a horizontal position . The pump according to any one of claims 1 to 9, wherein the second pipe is connected to a flexible pipe that is deformable in an axial direction. A pump casing having a first pipe fixed to the installation floor and arranged to extend downward; and a second pipe arranged on the first pipe and communicated with the first pipe;
An impeller disposed in the pump casing;
A rotating shaft connected to the impeller through the second pipe of the pump casing;
Drive means having an output shaft coupled to the rotating shaft;
A pump comprising:
A first sliding contact portion provided at an upper end connecting the second piping of the first piping, and comprising one of a spherical concave portion and a spherical convex portion;
A second sliding contact is provided at a lower end connecting the first pipe of the second pipe, and is composed of the other one of a spherical concave portion and a spherical convex portion, and movably disposes the second pipe on the first pipe. And
A fixing member that fixes the second pipe to a predetermined position so as not to move with respect to the first pipe ;
The pump , wherein the second pipe is connected to an axially deformable flexible pipe . The pump according to claim 10 or 11, wherein a support member capable of adjusting an overall length is provided on the opposite side of the flexible pipe of the second pipe. The first pipe is a pumping pipe having a suction bell disposed at the lower end, and the second pipe is a bent pipe connecting the water feeding pipe extending in the lateral direction and the pumping pipe,
The rotating shaft protrudes upward from the bent pipe, and the driving means for the rotating shaft is disposed on a second installation floor provided on the upper part of the installation floor, and the output shaft of the driving means, the rotating shaft, The pump according to any one of claims 1 to 12 , wherein the pumps are connected by an intermediate shaft via a coupling. A second base plate seat provided on the second installation floor side and having a first sliding contact portion comprising one of a spherical concave portion and a spherical convex portion;
A second installation plate provided on the drive means side, which is composed of the other of a spherical concave portion and a spherical convex portion, and has a second sliding contact portion for movably disposing the drive means on the second base plate seat. Zodiac,
A second fixing member for fixing the second installation plate seat to a predetermined position so as not to be movable with respect to the second base plate seat;
The pump according to claim 13, comprising: Wherein a plumb member extending downwardly from the second mounting floor side, the lower the mark portion located below shows the initial installation position of the pump casing of the swing member, the claim 13 or, characterized in that provided The pump according to claim 14 .

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