Flange type axial flow pump unit

Abstract

This invention relates to a flange-type axial flow pump unit, comprising a pump base body, hydraulic rods, balance rods, and auxiliary support rods. The pump base body has flanges at both ends. Three sets of balance rods are arranged in an array around the center line of the pump base body. The upper end of the flange at the upper end of the pump base body protrudes upwards corresponding to the center points of the three balance rods, forming three support parts. The upper ends of the three support parts are connected to the balance rods one by one. The balance rods remain horizontal and can close into a circle when the three sets of balance rods are on the same horizontal plane. There are three hydraulic rods, each corresponding to the lower part of one of the three support parts. The bases of the three hydraulic rods are connected to the upper surface of a concrete foundation, and their output ends are ball-jointed to the lower surface of the upper flange of the pump base. Due to the adoption of the above technical solution, the installation of this flange-type axial flow pump unit is more convenient and the installation accuracy is improved to a certain extent.

Description

Technical Field

[0001] This invention relates to the field of fluid machinery technology, and specifically to a flange-type axial flow pump unit. Background Technology

[0002] A flanged axial flow pump is an axial flow pump that connects to a pipeline system through a flange interface. Its core features are large flow rate and low head, making it suitable for high-flow-rate liquid transportation scenarios. It is commonly used in sewage treatment plant booster pump stations, urban stormwater drainage, and other scenarios.

[0003] When installing a flange-type axial flow pump unit, it is essential to ensure that the centerlines of all parts of the axial flow pump are aligned to guarantee stable operation and minimize mechanical damage caused by installation errors. During installation, first pass the pump base through the mounting holes in the concrete foundation. Then, adjust the pump base to ensure its centerline is vertical, thus securing the pump base. Afterward, use the centerline of the pump base as a reference for installing other components. Therefore, leveling the pump base during installation is fundamental to the proper installation of the axial flow pump unit.

[0004] However, due to construction errors during the construction of concrete foundations, it cannot be guaranteed that the concrete foundation plane is level. Therefore, when installing the pump base, the installers usually need to use shims to raise the surrounding area and then use tools such as a level to help determine whether the center line of the pump base is vertical. The installation and leveling process is cumbersome and depends on the experience of the installers. Improper installation can easily 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 that in the prior art, when installing the pump base, the installer usually needs to use shims to raise the surrounding area and then use tools such as a level to help determine 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. Improper installation can easily affect the service life of the axial flow pump unit.

[0006] This invention is achieved through the following technical solution:

[0007] A flange-type axial flow pump unit includes a pump base, an impeller seat, a discharge pipe, and a pump shaft. The pump base is installed on a concrete foundation, the impeller seat is installed at the lower end of the pump base, the discharge pipe is installed at 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 base. The pump base includes a pump base body, hydraulic rods, balance rods, and support parts. Flanges are provided at both ends of the pump base body. Three sets of balance rods are arranged in an array around the center line of the pump base body. The upper end of the flange at the upper end of the pump base body protrudes upward to form three support parts corresponding to the center points of the three balance rods. The upper ends of the three support parts are connected to the balance rods one by one. The balance rods always remain horizontal and can close to form a circle when the three sets of balance rods are on the same horizontal plane. There are three hydraulic rods, each corresponding to the lower part of the three support parts. The base of the three hydraulic rods is connected to the upper surface of the concrete foundation, and the output end is ball-jointed to the lower surface of the upper flange of the pump base.

[0008] Furthermore, the support includes an ear plate, which is connected to the flange at the upper end of the pump base and to a rotating rod. The center line of the rotating rod is arranged along the radial direction of the pump base and is connected to the center of gravity of the balance rod.

[0009] Furthermore, the balance bar is made of a conductive material and also includes a controller. All three hydraulic rods are electrically connected to the controller, which is used to control the movement of the three hydraulic rods.

[0010] Furthermore, one end of the balance bar is slidably connected to a connecting cylinder, the balance bar also includes a spring, the two ends of the spring are respectively connected to the balance bar and the connecting cylinder, the connecting cylinder is provided with a coil, and the other end of the balance bar is made of magnetic material.

[0011] Furthermore, the support unit also includes an electric telescopic rod, a rotating shaft, a support claw, a gear, and a rack. The rotating shaft is connected to the flange at the upper end of the pump base. The gear is rotatably connected to the rotating shaft toward the center of the pump base body. The lower end of the support 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 base. The rack meshes with the gear.

[0012] Furthermore, the upper end of the electric telescopic rod is also connected to an ear plate.

[0013] Furthermore, the support claw includes a telescopic part and a supporting part. The lower end of the telescopic part is connected to a gear, and the supporting part is ball-jointed to the upper end of the telescopic part. The supporting part is used to support the pump shaft and the components on the pump shaft.

[0014] The beneficial effects of this invention are as follows:

[0015] 1. This flange-type axial flow pump unit uses three hydraulic rods to move the balance bar up and down to adjust the center line of the pump base. When the three balance bars are on the same horizontal plane, it can be determined that the center line of the pump base is vertical. No manual assistance or other tools are required for judgment. This makes the installation process more convenient and improves the installation accuracy to a certain extent, thereby ensuring the service life of this flange-type axial flow pump unit to a certain extent.

[0016] 2. This flange-type axial flow pump unit, by setting three support claws, allows the three support claws to rotate simultaneously toward the center of the pump base after the balance bar is leveled, thus providing centering support for the pump shaft to be installed later. This reduces the steps that installers need to take to adjust the pump shaft and other mounting components on the pump shaft for centering during installation, simplifying the workflow to a certain extent and making it more convenient for installers to install the pump shaft.

[0017] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0018] Figure 1 This is a front view of the structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the flange, balance bar, and support at the upper end of the pump base of the present invention;

[0021] Figure 4 For the present invention Figure 3 A magnified view of part A in the image;

[0022] Figure 5 This is a schematic diagram of the structure of the balance bar of the present invention.

[0023] In the diagram: 1. Pump base body; 2. Pump shaft; 3. Hydraulic rod; 4. Balance bar; 41. Connecting cylinder; 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 Implementation

[0024] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0025] Please see Figure 1-5 This invention provides a technical solution for a flange-type axial flow pump unit: a flange-type axial flow pump unit includes a pump base, an impeller seat, a water outlet pipe, and a pump shaft 2. The pump base is installed on a concrete foundation 6, the impeller seat is installed at the lower end of the pump base, the water outlet pipe is installed at the upper end of the pump base, and the pump shaft 2 is arranged along the center line of the pump base and connected to the pump base. The pump base includes a pump base body 1, a hydraulic rod 3, a balance rod 4, and an auxiliary support rod. Flanges are provided at both ends of the pump base body 1, and three sets of balance rods 4 are arranged around the center line of the pump base body 1. The pump base body 1 is arranged in an array. The upper end of the flange at the upper end of the pump base body 1 protrudes upward to form three support parts 5 corresponding to the center point of gravity of the three balance bars 4. The upper ends of the three support parts 5 are connected to the balance bars 4 one by one. The balance bars 4 always remain horizontal and can close to form a circle when the three sets of balance bars 4 are on the same horizontal plane. There are three hydraulic rods 3, which correspond to the lower part of the three support parts 5. The base of the three hydraulic rods 3 is connected to the upper surface of the concrete foundation 6, and the output end is ball-jointed to the lower surface of the upper flange of the pump base.

[0026] When installing a flange-type axial flow pump unit according to the present invention, the pump base body 1 is first installed on the concrete foundation 6 through the mounting holes 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 is ball-jointed to the lower surface of the upper flange of the pump base, 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 upper flange of the pump base. The plane of the upper flange of the pump base can be changed by adjusting the height of the upper ends of the three hydraulic rods 3.

[0027] Because the upper end of the flange on the upper end of the pump base body 1 protrudes upward to form three support parts 5 corresponding to the center of gravity of the three balance bars 4, the upper ends of the three support parts 5 are connected to the balance bars 4 one by one. The balance bars 4 always remain horizontal. The three hydraulic rods 3 correspond to the lower part of the three support parts 5 one by one. When the hydraulic rods 3 move up and down, they can drive the balance bars 4 to move up and down. When the plane formed by the upper end of the hydraulic rods 3 is not a horizontal plane, the horizontal planes where the three balance bars 4 are located will not be on the same horizontal plane. When the three hydraulic rods 3 move up and down, they drive the three balance bars 4 to move up and down to the same horizontal plane. At this time, the plane formed by the upper end of the hydraulic rods 3 is a horizontal plane. That is, at this time, the plane corresponding to the flange on the upper end of the pump base is a horizontal plane. That is, at this time, the axis of the pump base is vertical and can be used as a foundation for installing other components.

[0028] With this structure, when installing the pump base of the flange-type axial flow pump unit of the present invention, it is not necessary for the installer to repeatedly level it with tools, which simplifies the installation process to a certain extent and ensures the installation accuracy.

[0029] In this embodiment: the support part 5 includes an ear plate 51, the ear plate 51 is connected to the flange 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 is connected to the center of gravity of the balance rod 4.

[0030] With this structure, the balance bar 4 can remain horizontal.

[0031] In this embodiment: the balance bar 4 is made of conductive material and also includes a controller. All three hydraulic rods 3 are electrically connected to the controller, which is used to control the movement of the three hydraulic rods 3.

[0032] The controller controls the three hydraulic rods 3 to move up and down reciprocally, so that the three hydraulic rods 3 can find the same horizontal plane by finding the balance rod 4. When the balance rod 4 is at the same height, the balance rod 4 forms a closed loop and is energized, thereby controlling the three hydraulic rods 3 to be de-energized and stop moving. With this structure, the three balance rods 4 can find a common horizontal plane by themselves after being energized, thereby reducing the process of judgment by the installation workers and simplifying the workflow to a certain extent.

[0033] In this embodiment: one end of the balance bar 4 is slidably connected to a connecting cylinder 41, the balance bar 4 also includes a spring 42, the two ends of the spring 42 are respectively connected to the balance bar 4 and the connecting cylinder 41, the connecting cylinder 41 is provided with a coil, and the other end of the balance bar 4 is made of magnetic material.

[0034] When the three balance rods 4 form a ring, the balance rods 4 are energized, and at the same time, the coils of the balance rods 4 are energized. The coils generate magnetic force to push the connecting cylinder 41 to move toward the magnetic end of the adjacent balance rod 4. This locks the balance position formed by the balance rods 4 and indicates that the position of the pump base body has been leveled, which is convenient for the installer to judge.

[0035] When it is necessary to disconnect the connection of the connecting cylinder 41 between the balance bar bodies 4, the power supply is turned off, which will de-energize the coil and cause it to lose its magnetism. This will cause the spring 42 to drive the connecting cylinder 41 to reset, thus disconnecting the connection between the connecting cylinder 41 and the other end of its adjacent balance bar body 4.

[0036] In this embodiment: the support part 5 further includes an electric telescopic rod 53, a rotating shaft 54, a support 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 base. The gear 56 is rotatably connected to the rotating shaft 54 ​​toward the center of the pump base body 1. The lower end of the support 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 base. The rack 57 meshes with the gear 56.

[0037] After the pump base body 1 is installed vertically, the electric telescopic rod 53 is in the extended state, the rack 57 is at its highest position, and the gear 56 drives the support 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 set 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 base. The rack 57 meshes with the gear 56. By controlling the electric telescopic rod 53 to shorten, the rack 57 can be moved downward and the gear 56 can be rotated towards the center line of the pump base, thereby driving the support claw 55 to rotate towards the center of the pump base. When the three support claws 55 simultaneously hold the pump shaft 2, the installation of the pump shaft 2 can be supported. With this structure, the pump shaft 2 can be supported during installation, which reduces the possibility of the pump shaft 2 swaying left and right during installation to a certain extent.

[0038] In this embodiment, the upper end of the electric telescopic rod 53 is also connected to the ear plate 51.

[0039] Once the position of the balance bar 4 is locked, the three balance bars 4 form a closed loop. When one of the electric telescopic rods 53 moves, it drives the ear plate 51 to move, thereby driving the balance bar 4 to move. The other two balance bars 4 will also move simultaneously, causing the three electric telescopic rods 53 to move simultaneously and drive the three support claws 55 to rotate towards the center of the pump base. This ensures that the center line of the support claw 55 formed at the upper end of the support claw 55 is always aligned with the center line of the pump base, thereby reducing the need for installers to manually center and position the pump shaft 2, and making the installation of the pump shaft 2 more convenient to a certain extent.

[0040] In this embodiment: the support claw 55 includes a telescopic part 551 and a supporting part 552. The lower end of the telescopic part 551 is connected to a gear 56, and the supporting part 552 is ball-jointed to the upper end of the telescopic part 551. The supporting part 552 is used to support the pump shaft 2 and the components on the pump shaft 2.

[0041] With this structure, the support claw 55 can be used to position and install other components on the pump shaft 2 that require alignment.

[0042] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A flange-type axial flow pump unit, comprising a pump base, an impeller seat, a discharge pipe, and a pump shaft, wherein the pump base is installed on a concrete foundation, the impeller seat is installed at the lower end of the pump base, the discharge pipe is installed at 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 base includes a pump base body, hydraulic rods, balance rods, and support parts. The pump base body has flanges at both ends. Three sets of balance rods are arranged in an array around the center line of the pump base body. The upper end of the flange at the upper end of the pump base body protrudes upwards corresponding to the center points of the three balance rods, forming three support parts. The upper ends of the three support parts are connected to the balance rods one by one. The balance rods always remain horizontal and can close into a circle when the three sets of balance rods are on the same horizontal plane. There are three hydraulic rods, each corresponding to the lower part of one of the three support parts. The bases of the three hydraulic rods are connected to the upper surface of the concrete foundation, and the output ends are ball-jointed to the lower surface of the upper flange of the pump base. The support includes an ear plate, which is connected to the flange at the upper end of the pump base and connected to a rotating rod. The center line of the rotating rod is set along the radial direction of the pump base and connected to the center of gravity of the balance rod, so that the balance rod can be kept horizontal. The balance bar is made of conductive material and also includes a controller. All three hydraulic rods are electrically connected to the controller, which is used to control the movement of the three hydraulic rods. One end of the balance bar is slidably connected to a connecting cylinder. The balance bar also includes a spring, with its two ends connected to the balance bar and the connecting cylinder, respectively. A coil is installed inside the connecting cylinder. The other end of the balance bar is made of magnetic material. When the balance bars are at the same height, they form a closed loop and are energized, thereby controlling the three hydraulic rods to de-energize and stop their movement.

2. The flange-type axial flow pump unit according to claim 1, characterized in that: The support unit also includes an electric telescopic rod, a rotating shaft, a support claw, a gear, and a rack. The rotating shaft is connected to the flange at the upper end of the pump base. The gear is rotatably connected to the rotating shaft toward the center of the pump base body. The lower end of the support 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 base. The rack meshes with the gear.

3. A flange-type axial flow pump unit according to claim 2, characterized in that: The upper end of the electric telescopic rod is also connected to an ear plate.

4. A flange-type axial flow pump unit according to claim 3, characterized in that: The support claw includes a telescopic part and a supporting part. The lower end of the telescopic part is connected to a gear, and the supporting part is ball-jointed to the upper end of the telescopic part. The supporting part is used to support the pump shaft and the components on the pump shaft.

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