Spring leg base

Abstract

The utility model provides a spring leg base which is used for supporting a centrifugal pump and comprises a spring leg body, an adjusting nut is arranged at the top of the spring leg body, and a guide shaft is arranged in the spring leg body; the lifting device is located above the spring leg body, is detachably connected with the spring leg body and comprises a shell, an opening is formed in the bottom of the shell, a through hole is formed in the top of the shell, a thread is arranged on the inner wall of the shell, and the thread on the inner wall of the shell is connected with an adjusting nut on the top of the spring leg body; threads are arranged outside the screw rod, the screw rod is arranged in the through hole of the shell in a penetrating mode and connected with the shell, and the first end of the screw rod is connected with the guide shaft; and the lifting lug assembly is positioned above the screw rod and is connected with the second end of the screw rod. The spring leg base is simple in structure and operation, and the difficulty and potential safety hazards of lifting the centrifugal pump base can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to centrifugal pump technical field, concretely relates to a spring leg base. BACKGROUND

[0002] At present, some single-stage centrifugal pumps are applied in high-temperature and high-pressure working conditions, and the system pipeline can slide during operation, so that the centrifugal pump base cannot be directly fixed on the system pipeline or the ground, but a spring leg with a sliding plate is used to offset the stress on the pump shell caused by the displacement of the system pipeline. When adjusting the levelness of the sliding plate at the bottom of the spring leg or repairing the spring leg, the base must be lifted to a high enough height. Since the centrifugal pump is usually large and heavy, it is difficult to lift, and a higher lifting height will have greater safety hazards. SUMMARY

[0003] In order to overcome the defects in the prior art, the utility model embodiment provides a spring leg base, which is simple in structure and operation, and can reduce the difficulty and safety hazards of lifting the centrifugal pump base.

[0004] To achieve the above purpose, the utility model adopts the technical scheme of:

[0005] The utility model discloses a spring leg base for supporting a centrifugal pump, comprising:

[0006] A spring leg body is provided with an adjusting nut at the top, and a guide shaft is arranged inside the spring leg;

[0007] A lifting device is arranged above the spring leg body and detachably connected with the spring leg body, comprising:

[0008] A shell is provided with an opening at the bottom and a through hole at the top, and the inner wall of the shell is provided with threads, which are connected with the adjusting nut at the top of the spring leg body;

[0009] A screw rod is provided with threads on the outside, and is arranged in the through hole of the shell and connected with the shell, and the first end of the screw rod is connected with the guide shaft;

[0010] An ear assembly is arranged above the screw rod and connected with the second end of the screw rod.

[0011] The above technical scheme sets the lifting device detachably connected with the spring leg. When the centrifugal pump base needs to be lifted, the shell of the lifting device is connected with the spring leg body, the screw rod is connected with the guide shaft, the lifting device is installed on the spring leg body, and the guide shaft of the spring leg is pulled up. The structure is simple and convenient to operate, and the difficulty and safety hazards of lifting the centrifugal pump base are reduced.

[0012] Further, a sleeve is connected in the through hole of the shell, a threaded hole is arranged in the sleeve, and the screw rod is connected with the sleeve and passes through the sleeve. The threaded connection of the sleeve and the screw rod can improve the stability and firmness of the connection of the screw rod and the shell.

[0013] Further, the lifting lug assembly comprises a lifting lug and a joint, the joint is provided with a threaded hole, one end of the threaded hole is connected with the lifting lug, and the other end is threadedly connected with the screw rod. By connecting with the lifting lug at the top of the lifting device, the guide shaft can be uniformly pulled up to make the spring leg separate from the bottom slide plate, and the spring leg and the slide plate can be adjusted, which is simple to operate.

[0014] Further, the threads on the inner wall of the shell are arranged on the side of the shell. The threads on the inner wall of the shell are matched and connected with the adjusting nut at the top of the spring leg, and the threads on the inner wall of the shell are arranged on the side of the shell.

[0015] Further, the guide shaft extends radially along the spring leg body, a threaded hole is arranged at the first end of the guide shaft, and the threaded hole is connected with the screw rod.

[0016] Further, the threaded hole extends from the first end to the second end of the guide shaft, and at least part of the screw rod is connected in the guide shaft. The threaded hole is arranged at the end of the guide shaft connected with the screw rod, so that part of the screw rod can extend into the guide shaft, thereby improving the stability and firmness of the connection of the screw rod and the guide shaft.

[0017] Further, the shell is made of metal.

[0018] Further, a slide plate is arranged below the spring leg body, a metal plate is connected to the side away from the spring leg body of the slide plate, and when the lifting device is connected with the spring leg body, the lifting device can pull up the spring leg body to at least separate the spring leg base from the slide plate.

[0019] Due to the use of the above technical solutions, the present application has the following advantages compared with the prior art:

[0020] The lifting device is detachably connected with the spring leg, when the pump base needs to be lifted, the shell of the lifting device is connected with the spring leg body, the screw rod is connected with the guide shaft, the lifting device is installed on the spring leg body, and the guide shaft of the spring leg is pulled up, which is simple in structure, convenient to operate, and can reduce the difficulty and safety hazards of lifting the centrifugal pump base.

[0021] In order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the following preferred embodiments are described in detail below, and the accompanying drawings are described as follows. DETAILED DESCRIPTION

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0023] Figure 1 is a sectional view of a spring leg base provided by the embodiment of the present application.

[0024] The above drawings of the drawings: 1, spring leg body; 2, adjusting nut; 3, guide shaft; 4, shell; 5, screw; 6, lifting lug; 7, joint; 8, sleeve; 9, sliding plate; 10, metal plate. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments only constitute some embodiments of the present application, rather than all the embodiments. In addition, the drawings of the present application are only simple schematic illustrations, not the depiction of actual size, and the prior declaration is made.

[0026] In the present application, it needs to be explained that the directions or position relationships indicated by the terms "upper", "lower", "inner", "outer", "forward", "backward", "between", "close to", "far away" and the like are based on the directions or position relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the present application. It also needs to be explained that unless otherwise explicitly specified and limited, the terms "mounting", "connecting" should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be directly connected, or indirectly connected. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0027] It should be understood that although the terms "first", "second", "third" and the like can be used herein to describe various components or signals, these components or signals should not be limited by these terms. These terms are mainly used to distinguish one component from another component, or one signal from another signal. In addition, the term "or" used herein can include any one or more combinations of the associated listed items.

[0028] Reference Figure 1As shown, the embodiment of the present application provides a spring leg base, which is arranged at the bottom of the centrifugal pump for supporting the centrifugal pump, including a spring leg body 1. Centrifugal pumps using spring leg bases are usually used in high temperature and high pressure working environments. The system pipeline may slide during operation. Therefore, the pump base cannot be directly fixed on the system pipeline or the ground, but is fixed with a spring leg plus a slide plate, such as Figure 1 As shown, a slide plate 9 is provided below the spring leg body 1 , and a metal plate 10 is connected to the side of the slide plate 9 facing away from the spring leg body 1 .

[0029] In order to adjust the slide plate 9 or repair the spring leg body 1, the centrifugal pump base needs to be lifted. Since the centrifugal pump is usually large and heavy, the lifting operation is difficult, and too high a lifting height will have greater safety hazards. Figure 1 As shown, an embodiment of the present application provides a lifting device, which is arranged above the spring leg body 1 and is detachably connected to the spring leg body 1. When the centrifugal pump base needs to be lifted, the lifting device can be installed on the spring leg body 1. When the centrifugal pump base does not need to be lifted, the lifting device can be removed from the spring leg body 1.

[0030] Specifically, refer to Figure 1 As shown, the lifting device includes a shell 4, a screw 5, and a lifting ear assembly, wherein an opening is provided at the bottom of the shell 4, and the opening at the bottom of the shell 4 is used to sleeve and connect the shell 4 to the top of the spring leg body 1.

[0031] In order to connect the shell 4 with the spring leg body 1, in a possible embodiment, an adjusting nut 2 is provided on the top of the spring leg body 1, and a thread is provided on the inner wall of the shell 4, and the thread on the inner wall of the shell 4 is connected and matched with the adjusting nut 2 on the top of the spring leg body 1.

[0032] In a possible embodiment, the thread on the inner wall of the shell 4 is provided on the side surface of the shell 4 .

[0033] In order to improve the firmness of the housing 4 , in a possible embodiment, the housing 4 is made of metal.

[0034] like Figure 1 As shown, a through hole is provided on the top of the shell 4, and a screw 5 is passed through the through hole of the shell 4 and connected to the shell 4. A thread is provided on the outside of the screw 5, and the first end of the screw 5 extends toward the inside of the spring leg body 1. A guide shaft 3 is provided inside the spring leg body 1, and the guide shaft 3 extends radially along the spring leg body 1. A threaded hole is provided at the first end of the guide shaft 3. The first end of the screw 5 extends into the interior of the spring leg body 1 from the top of the spring leg body 1 and is connected to the guide shaft 3 through a thread and a threaded hole.

[0035] In order to improve the stability and firmness of the screw rod 5 and the shell 4, the through hole of the shell 4 is connected with a sleeve 8, the sleeve 8 is connected with the shell 4 by welding, the sleeve 8 is provided with a threaded hole, and the screw rod 5 is connected with the sleeve 8 by screwing and passes through the sleeve 8.

[0036] In order to improve the stability of the screw rod 5 and the guide shaft 3, the threaded hole on the guide shaft 3 extends from the first end to the second end of the guide shaft 3, so that at least part of the screw rod 5 extends into the guide shaft 3 and is connected with the guide shaft 3.

[0037] As shown in Figure 1 The lug assembly is located above the screw rod 5 and is connected with the second end of the screw rod 5, the lug assembly comprises a lug 6 and a joint 7, the joint 7 is provided with a threaded hole, one end of the threaded hole is connected with the lug 6, and the other end is connected with the screw rod 5 by screwing.

[0038] In order to improve the stability of the lug 6 and the joint 7, the lug 6 and the joint 7 can be connected by welding.

[0039] In actual use, since the levelness of the site is not within the preset range, the planes where the four spring legs of the centrifugal pump are located are not within the levelness, at this time, the levelness deficiency needs to be compensated by adding shims, and the specific operation is that: the lifting device is installed on the spring leg adjusting nut 2, the screw rod 5 of the lifting device is connected with the threaded hole of the guide shaft 3 in the spring leg body 1, the lug 6 is lifted, the guide shaft 3 is pulled up at a constant speed, the spring leg body 1 can be separated from the slide plate 9 at the bottom, and then the shims are added.

[0040] When the spring leg body 1 needs to be maintained, the pump base needs to be lifted as a whole, since the centrifugal pump is usually large and heavy, too high lifting height will have greater safety hazards, when lifting, the centrifugal pump is lifted as a whole to the state that the spring leg body 1 is in a natural state, then the guide shaft 3 is pulled up through the operation described above, and then the maintenance work of the spring leg can be started.

[0041] It should be noted that the first end and the second end in the above embodiment are only for explaining the connection relationship between the components, and do not limit the end of the specific structure.

[0042] In the utility model, the principle and implementation mode of the utility model are described by using specific embodiments, and the above embodiment is only used for helping to understand the method and core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the utility model, the specific implementation mode and application range will be changed, and according to the above, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A spring leg base, the spring leg base is used to support a centrifugal pump, characterized in that: include: A spring leg body, wherein an adjusting nut is provided on the top of the spring leg body and a guide shaft is provided inside the spring leg; A lifting device, located above the spring leg body and detachably connected to the spring leg body, comprising: A housing, wherein the bottom of the housing is provided with an opening, the top of the housing is provided with a through hole, the inner wall of the housing is provided with a thread, and the thread on the inner wall of the housing is connected to the adjusting nut on the top of the spring leg body; A screw, wherein the screw is provided with threads on the outside, the screw is inserted into the through hole of the housing and connected to the housing, and the first end of the screw is connected to the guide shaft; A lifting ear assembly is located above the screw rod and connected to the second end of the screw rod.

2. A spring leg base according to claim 1, characterized in that: A sleeve is connected in the through hole of the shell, a threaded hole is provided in the sleeve, and the screw is connected to the sleeve and passes through the sleeve.

3. A spring leg base according to claim 1, characterized in that: The lifting ear assembly includes a lifting ear and a joint. The joint is provided with a threaded hole. One end of the threaded hole is connected to the lifting ear, and the other end is threadedly connected to the screw.

4. A spring leg base according to claim 1, characterized in that: The screw thread on the inner wall of the shell is arranged on the side surface of the shell.

5. The spring leg base according to claim 1, characterized in that: The guide shaft extends radially along the spring leg body, and a threaded hole is provided at the first end of the guide shaft, and the threaded hole is connected to the screw rod.

6. A spring leg base according to claim 5, characterized in that: The threaded hole extends from the first end to the second end of the guide shaft, and at least a portion of the screw is connected to the guide shaft.

7. The spring leg base according to claim 1, characterized in that: The shell is made of metal.

8. The spring leg base according to claim 1, characterized in that: A slide is provided below the spring leg body, and a metal plate is connected to the side of the slide facing away from the spring leg body. When the lifting device is connected to the spring leg body, the lifting device can pull up the spring leg body until the spring leg base is at least separated from the slide.

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