Flange type axial flow pump unit

Abstract

The invention relates to a flange type axial flow pump unit which comprises a pump base body, a hydraulic rod, three sets of balance rod bodies and auxiliary supporting rods, flange plates are arranged at the two ends of the pump base body, and the three sets of balance rod bodies are arranged around the center line of the pump base body at intervals in an array mode. The upper end face of a flange plate at the upper end of the pump base body protrudes upwards to form three supporting parts corresponding to the gravity center points of the three balance rod bodies, the upper ends of the three supporting parts are connected with the balance rod bodies in a one-to-one correspondence mode, and the balance rod bodies are kept horizontal all the time and can be closed to form a circle when the three balance rod bodies are located on the same horizontal plane; the number of the hydraulic rods is three, the three hydraulic rods correspond to the lower portions of the three supporting parts in a one-to-one mode, bases of the three hydraulic rods are connected with the upper surface of the concrete foundation, and output ends are spherically hinged to the lower surface of a flange plate at the upper end of the pump base. Due to the adoption of the technical scheme, the flange type axial flow pump unit is more convenient to mount, and the mounting precision is improved to a certain extent.

Description

Technical Field

[0001] The present invention relates to the technical field of fluid machinery, and in particular to a flange-type axial flow pump unit. Background Art

[0002] A flanged axial flow pump is an axial flow pump that is connected to the piping system through a flange interface. Its core features are large flow and low head. It is suitable for large-flow liquid transportation scenarios and is often used in sewage treatment plant lift pump stations, urban rainwater discharge and other scenarios.

[0003] When installing a flanged axial flow pump unit, the axis centerlines of the various parts of the axial flow pump must be kept on the same line to ensure stable coordination of the various parts of the axial flow pump and reduce mechanical damage to the axial flow pump caused by installation errors. During the installation process, the pump base is first passed through the mounting hole in the concrete foundation. Then, the pump base is adjusted so that the centerline of the pump base remains vertical. After that, the other components are installed based on the centerline of the pump base. Therefore, the installation and leveling of the pump base during the installation process of the axial flow pump unit is the basis for the reasonable installation of the axial flow pump unit.

[0004] However, due to construction errors during the construction of the concrete foundation, the concrete foundation plane cannot be guaranteed to be level. Therefore, when installing the pump seat, the installers usually need to use shims to raise the surrounding area and then use tools such as a spirit level to assist in determining whether the center line of the pump seat is vertical. The installation and leveling process is cumbersome and relies on the experience of the installers. If the installation is improper, it is easy to affect the service life of the axial flow pump unit. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a flange-type axial flow pump unit to solve the problem in the prior art that when installing the axial flow pump base, the installer usually needs to use shims to raise the surrounding areas and then use tools such as a spirit level to assist in determining whether the center line of the pump base is vertical. The installation and leveling process is cumbersome and depends on the experience of the installer. If the installation is improper, it is easy to affect the service life of the axial flow pump unit.

[0006] The present invention is achieved through the following technical solutions: The top end face of described outer combustion gas pump stretches out the slant pipe, and the bottom end face of described outer combustion gas pump stretches out the slant pipe, and the bottom end face of described outer combustion gas pump stretches out the slant pipe, and the bottom end face of described outer combustion gas pump stretches out the slant pipe.

[0007] Furthermore, the support portion includes an ear plate, which is connected to the flange on the upper end of the pump seat and is connected to a rotating rod. The center line of the rotating rod is arranged along the radial direction of the pump seat and connected to the center of gravity of the balance rod body.

[0008] Furthermore, the balancing rod body is made of a conductive material and also includes a controller. The three hydraulic rods are electrically connected to the controller, and the controller is used to control the movement of the three hydraulic rods.

[0009] Furthermore, one end of the balance rod body is slidably connected to a connecting tube, and the balance rod body also includes a spring, the two ends of the spring are respectively connected to the balance rod body and the connecting tube, a coil is provided inside the connecting tube, and the other end of the balance rod body is made of magnetic material.

[0010] Furthermore, the support part also includes an electric telescopic rod, a rotating shaft, a supporting claw, a gear and a rack. The rotating shaft is connected to the flange at the upper end of the pump seat, and the gear can be rotatably connected to the rotating shaft toward the center of the pump seat body, and the lower end of the supporting claw is connected to the gear; the rack is vertically arranged, the upper end of the electric telescopic rod is connected to the rack, and the lower end is connected to the flange at the upper end of the pump seat, and the rack is engaged with the gear.

[0011] Furthermore, the upper end of the electric telescopic rod is also connected to a lug plate.

[0012] Furthermore, the supporting claw includes a telescopic portion and a supporting portion, the lower end of the telescopic portion is connected to a gear, the supporting portion is ball-jointed to the upper end of the telescopic portion, and the supporting portion is used to support the pump shaft and components on the pump shaft.

[0013] The beneficial effects of the present invention are: 1. This flanged axial flow pump unit uses three hydraulic rods to drive the balance rod body to move up and down to adjust the center line of the pump seat. When the three balance rod bodies are on the same horizontal plane, it can be determined that the center line of the pump seat is in a vertical state. No manual assistance or other tools are required for judgment. It is more convenient during the installation process and improves the installation accuracy to a certain extent, thereby ensuring the service life of this flanged axial flow pump unit to a certain extent. 2. This flanged axial flow pump unit is equipped with three support claws, which can be simultaneously rotated toward the center of the pump seat after the balance rod is leveled to provide centrifugal support for the pump shaft to be installed later. This reduces the number of steps for installers to adjust the pump shaft and other mounting components on the pump shaft for centering during the installation process, simplifies the work process to a certain extent, and makes it more convenient for installers to install the pump shaft.

[0014] Other advantages, objects, and features of the present invention will be described in part in the following description and, in part, will be apparent to those skilled in the art upon examination of the following description or may be learned from practice of the present invention. The objects and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural front view of the present invention; Figure 2 It is a structural schematic diagram of the present invention; Figure 3 This is a schematic structural diagram of the flange, balance rod and support portion at the upper end of the pump base of the present invention; Figure 4 For the present invention Figure 3 A partial enlarged view of middle A; Figure 5 It is a structural schematic diagram of the balance rod body of the present invention.

[0016] In the figure: 1. Pump seat body; 2. Pump shaft; 3. Hydraulic rod; 4. Balance rod body; 41. Connecting tube; 42. Spring; 5. Support part; 51. Ear plate; 52. Rotating rod; 53. Electric telescopic rod; 54. Rotating shaft; 55. Support claw; 551. Telescopic part; 552. Supporting part; 56. Gear; 57. Rack; 6. Concrete foundation. DETAILED DESCRIPTION

[0017] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0018] See also Figure 1-5The present invention provides a technical solution for a flanged axial flow pump unit: a flanged axial flow pump unit, comprising a pump seat, an impeller seat, a water outlet pipe and a pump shaft 2, wherein the pump seat is mounted on a concrete foundation 6, the impeller seat is mounted on the lower end of the pump seat, the water outlet pipe is mounted on the upper end of the pump seat, the pump shaft 2 is arranged along the center line of the pump seat and connected to the pump shaft 2, the pump seat comprises a pump seat body 1, a hydraulic rod 3, a balance rod body 4 and an auxiliary support rod, flanges are provided at both ends of the pump seat body 1, the balance rod body 4 is provided with three groups and spaced around the center line of the pump seat body 1 They are arranged in an array, and the upper end surface of the flange at the upper end of the pump seat body 1 corresponds to the center of gravity of the three balancing rod bodies 4 to form three supporting parts 5 that protrude upward. The upper ends of the three supporting parts 5 are connected to the balancing rod bodies 4 one by one. The balancing rod bodies 4 always remain horizontal and can be closed to form a circle when the three groups of balancing rod bodies 4 are located in the same horizontal plane; there are three hydraulic rods 3, and the three hydraulic rods 3 correspond to the bottom of the three supporting parts 5 one by one. The bases of the three hydraulic rods 3 are connected to the upper surface of the concrete foundation 6, and the output end ball joint is connected to the lower surface of the flange at the upper end of the pump seat.

[0019] When installing a flange-type axial flow pump unit of the present invention, the pump seat body 1 is first installed on the concrete foundation 6 through the mounting hole of the concrete foundation 6. Since the bases of the three hydraulic rods 3 are connected to the upper surface of the concrete foundation 6 and the output end ball joint is connected to the lower surface of the flange plate at the upper end of the pump seat, the bases of the three hydraulic rods 3 are fixed on the concrete foundation 6. At this time, the plane formed by the upper ends of the three hydraulic rods 3 is parallel to the plane formed by the flange plate at the upper end of the pump seat. By adjusting the height of the upper ends of the three hydraulic rods 3, the plane where the flange plate at the upper end of the pump seat is located can be changed.

[0020] Since the upper end surface of the flange at the upper end of the pump seat main body 1 corresponds to the center of gravity of the three balancing rod bodies 4 and protrudes upward to form three support parts 5, the upper ends of the three support parts 5 are connected to the balancing rod bodies 4 one by one, and the balancing rod body 4 always remains horizontal. The three hydraulic rods 3 correspond to the bottom of the three support parts 5 one by one. When the hydraulic rods 3 move up and down, they can drive the balancing rod body 4 to move up and down. When the plane formed by the upper ends of the hydraulic rods 3 is not a horizontal plane, the horizontal plane where the three balancing rod bodies 4 are located will not be in the same horizontal plane. When the three hydraulic rods 3 move up and down and drive the three balancing rod bodies 4 to move up and down to the same horizontal plane, the plane formed by the upper ends of the hydraulic rods 3 is a horizontal plane, that is, the plane corresponding to the flange at the upper end of the pump seat is a horizontal plane, that is, the axis of the pump seat is in a vertical state at this time, which can be used as a basis for installing other components.

[0021] With this structure, when installing the pump base of a flange-type axial flow pump unit of the present invention, it is not necessary for the installer to use tools to repeatedly level it, which simplifies the installation process to a certain extent and ensures the installation accuracy.

[0022] In this embodiment: the support part 5 includes an ear plate 51, the ear plate 51 is connected to the flange plate at the upper end of the pump seat and is connected to a rotating rod 52, the center line of the rotating rod 52 is set along the radial direction of the pump seat and connected to the center of gravity of the balance rod body 4.

[0023] With this structure, the balancing rod body 4 can be kept level.

[0024] In this embodiment, the balancing rod body 4 is made of conductive material and further includes a controller. The three hydraulic rods 3 are electrically connected to the controller, and the controller is used to control the movement of the three hydraulic rods 3 .

[0025] The controller controls the three hydraulic rods 3 to move up and down so that the three hydraulic rods 3 can find the height of the balancing rod body 4 at the same horizontal plane. When the balancing rod body 4 is at the same height, the balancing rod body 4 forms a closed loop and is energized, thereby controlling the three hydraulic rods 3 to be de-energized and stop the hydraulic rods 3 from moving. With this structure, the three balancing rod bodies 4 can find a common horizontal plane by themselves after being energized, thereby reducing the judgment process of the installation workers and simplifying the work process to a certain extent.

[0026] In this embodiment: one end of the balance rod body 4 is slidably connected to a connecting tube 41, and the balance rod body 4 also includes a spring 42, the two ends of the spring 42 are respectively connected to the balance rod body 4 and the connecting tube 41, a coil is provided inside the connecting tube 41, and the other end of the balance rod body 4 is made of magnetic material.

[0027] When the three balancing rod bodies 4 are enclosed to form a ring, the balancing rod bodies 4 are energized and the coils of the balancing rod bodies 4 are also energized, so that the coils generate magnetic force to push the connecting tube 41 toward the magnetic end of the adjacent balancing rod body 4, thereby locking the balanced position formed by the balancing rod body 4 and thereby indicating that the position of the pump seat body has been leveled, which is convenient for the installation workers to judge.

[0028] When the connection between the connecting tube 41 and the balancing rod 4 needs to be released, the power supply is disconnected, the coil is de-energized and loses its magnetism, and the spring 42 drives the connecting tube 41 to reset, disconnecting the connecting tube 41 from the other end of the adjacent balancing rod 4.

[0029] In this embodiment: the support part 5 also includes an electric telescopic rod 53, a rotating shaft 54, a supporting claw 55, a gear 56 and a rack 57. The rotating shaft 54 is connected to the flange at the upper end of the pump seat, and the gear 56 can be rotatably connected to the rotating shaft 54 toward the center of the pump seat body 1. The lower end of the supporting claw 55 is connected to the gear 56; the rack 57 is vertically arranged, the upper end of the electric telescopic rod 53 is connected to the rack 57, and the lower end is connected to the flange at the upper end of the pump seat, and the rack 57 is engaged with the gear 56.

[0030] After the pump seat body 1 is installed in the vertical direction, the electric telescopic rod 53 is in an extended state. At this time, the rack 57 is in the highest position, and the gear 56 drives the supporting claw 55 to be in a vertical state, which cannot support the installation of the pump shaft 2; when it is necessary to use the support claw to support the pump shaft 2, since the rack 57 is arranged vertically, the upper end of the telescopic rod is connected to the rack 57 and the lower end is connected to the flange at the upper end of the pump seat, and the rack 57 is meshed with the gear 56. By controlling the shortening of the electric telescopic rod 53, the rack 57 can be moved downward and the gear 56 can be rotated toward the center line of the pump seat, thereby driving the supporting claw 55 to rotate toward the center of the pump seat; when the three supporting claws 55 simultaneously abut the pump shaft 2, the installation of the pump shaft 2 can be supported. With this structure, the pump shaft 2 can be supported when it is installed, which reduces the possibility of the pump shaft 2 shaking left and right during the installation process to a certain extent.

[0031] In this embodiment, the upper end of the electric telescopic rod 53 is also connected to the ear plate 51 .

[0032] When the position of the balancing rod body 4 is locked, since the three balancing rod bodies 4 form a closed ring, when one of the electric telescopic rods 53 moves to drive the ear plate 51 to move and thus drive the balancing rod body 4 to move, the other two balancing rod bodies 4 will also move at the same time, so that the three electric telescopic rods 53 move at the same time and drive the three supporting claws 55 to rotate toward the center of the pump seat at the same time, so that the center line of the supporting claw 55 formed at the upper end of the supporting claw 55 is always aligned with the center line of the pump seat, thereby reducing the installation workers' manual centering and positioning operations on the pump shaft 2, making the installation of the pump shaft 2 more convenient to a certain extent.

[0033] In this embodiment: the supporting claw 55 includes a telescopic part 551 and a supporting part 552, the lower end of the telescopic part 551 is connected to the gear 56, and the supporting part 552 is ball-jointed to the upper end of the telescopic part 551, and the supporting part 552 is used to support the pump shaft 2 and components on the pump shaft 2.

[0034] With this structure, the supporting claws 55 can be used to position and install other components on the pump shaft 2 that need to be centrally installed.

[0035] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make some changes or modifications to equivalent embodiments using the technical contents disclosed above. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A flanged axial flow pump unit, comprising a pump base, an impeller base, a water outlet pipe, and a pump shaft, wherein the pump base is mounted on a concrete foundation, the impeller base is mounted on the lower end of the pump base, the water outlet pipe is mounted on the upper end of the pump base, and the pump shaft is arranged along the center line of the pump base and connected to the pump shaft, characterized in that: The pump seat includes a pump seat body, a hydraulic rod, a balance rod body and a support part. Flanges are provided at both ends of the pump seat body. The balance rod bodies are provided with three groups and are arranged in an array around the center line of the pump seat body. The upper end surface of the flange at the upper end of the pump seat body corresponds to the center of gravity of the three balance rods and protrudes upward to form three support parts. The upper ends of the three support parts are connected to the balance rod bodies one by one. The balance rod bodies always remain horizontal and can be closed to form a circle when the three groups of balance rod bodies are located in the same horizontal plane; there are three hydraulic rods, and the three hydraulic rods correspond to the bottom of the three support parts one by one. The bases of the three hydraulic rods are connected to the upper surface of the concrete foundation, and the output end ball joint is connected to the lower surface of the flange at the upper end of the pump seat.

2. A flange-type axial flow pump unit according to claim 1, characterized in that: The support portion includes an ear plate connected to a flange on the upper end of the pump seat and connected to a rotating rod. The center line of the rotating rod is arranged along the radial direction of the pump seat and connected to the center of gravity of the balance rod body.

3. A flange-type axial flow pump unit according to claim 2, characterized in that: The balancing rod body is made of conductive material and also includes a controller. The three hydraulic rods are electrically connected to the controller, and the controller is used to control the movement of the three hydraulic rods.

4. A flange-type axial flow pump unit according to claim 3, characterized in that: One end of the balance rod body is slidably connected to a connecting cylinder. The balance rod body also includes a spring. The two ends of the spring are respectively connected to the balance rod body and the connecting cylinder. A coil is provided inside the connecting cylinder. The other end of the balance rod body is made of magnetic material.

5. The flange-type axial flow pump unit according to claim 4, characterized in that: The support part also includes an electric telescopic rod, a rotating shaft, a supporting claw, a gear and a rack. The rotating shaft is connected to the flange at the upper end of the pump seat. The gear can be rotatably connected to the rotating shaft toward the center of the pump seat body. The lower end of the supporting claw is connected to the gear; the rack is vertically arranged, the upper end of the electric telescopic rod is connected to the rack, and the lower end is connected to the flange at the upper end of the pump seat, and the rack is engaged with the gear.

6. The flange-type axial flow pump unit according to claim 5, characterized in that: The upper end of the electric telescopic rod is also connected to the ear plate.

7. The flange-type axial flow pump unit according to claim 6, characterized in that: The supporting claw includes a telescopic portion and a supporting portion, the lower end of the telescopic portion is connected to a gear, the upper end of the supporting portion is ball-jointed, and the supporting portion is used to support the pump shaft and components on the pump shaft.

Images