Pipe shaft concentricity adjusting device

Abstract

The utility model relates to the field of pipe shaft concentricity, in particular to a pipe shaft concentricity adjusting device which comprises a base, a supporting plate is installed on the top of the base, a rolling wheel is installed on the top of the supporting plate, a steel pipe is movably attached to the top of the rolling wheel, and a center shaft is arranged on the inner wall of the steel pipe in a sleeved mode. The outer wall of the center shaft is sleeved with a limiting ring, an adjusting assembly is installed on the side wall of the limiting ring and comprises a threaded rod and a nut, one end of the threaded rod is connected to the side wall of the limiting ring in a threaded and inserted mode, and the other end of the threaded rod is attached to the inner wall of the steel pipe; the center shaft is sleeved with the limiting ring, the limiting ring pushes the center shaft to move by screwing the threaded rods on the limiting ring, the effect of adjusting the position of the center shaft is achieved, and the center shaft can be movably adjusted in four directions by being matched with the threaded rods in the four directions. The central shaft is located on the central axis of the steel pipe.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of pipe shaft concentricity, specifically relates to a pipe shaft concentricity adjusting device. BACKGROUND

[0002] Pipe concentricity refers to the maximum deviation between the center axes of the inner diameter and the outer diameter of a pipe, which is used to measure the roundness of the pipe, and for shaft parts, concentricity refers to the degree of concentricity between the outer circular surface of the shaft and the reference axis, and the concentricity after the shaft sleeve is connected to the pipe refers to the relative position relationship between the shaft and the outer circle of the pipe, that is, the degree of deviation in the horizontal and vertical directions, and the concentricity has an important influence on the running stability, noise control and service life of the mechanical system, and the concentricity error may cause uneven gaps between the shaft sleeve and the pipe, thereby causing problems such as vibration, noise and wear.

[0003] Therefore, we need to design a device for adjusting the concentricity between the shaft and the sleeve, so that the shaft is located on the center of the sleeve, the gap between the two is uniform, and the deviation between the two is avoided during the rotation of the shaft, so that the phenomenon of wear or vibration of the shaft during rotation is avoided. CONTENT OF THE UTILITY MODEL

[0004] Based on the above description, the utility model provides a pipe shaft concentricity adjusting device to solve the problem that the existing pipe and shaft are prone to uneven gaps after being connected.

[0005] The utility model solves the technical scheme of the above technical problems: a pipe shaft concentricity adjusting device, which comprises a base;

[0006] The top of the base is provided with a supporting plate, the top of the supporting plate is provided with a roller, the top of the roller is movably attached to a steel pipe, the inner wall of the steel pipe is provided with a center shaft, the outer wall of the center shaft is provided with a limiting ring, and the side wall of the limiting ring is provided with an adjusting assembly;

[0007] The adjusting assembly comprises a threaded rod and a nut, one end of the threaded rod is threadedly connected to the side wall of the limiting ring, the other end of the threaded rod is attached to the inner wall of the steel pipe, the nut is fixedly installed on the side wall of the threaded rod, the top of the nut is provided with an identification assembly, and the identification assembly is used for identifying the distance between the nut and the limiting ring.

[0008] Further, the side wall of the limiting ring is provided with a threaded groove, the number of the threaded rod and the threaded groove is four, four threaded rods are respectively threadedly connected in the inner cavities of four threaded grooves, and the four threaded rods and the four threaded grooves are evenly distributed on the side wall of the limiting ring.

[0009] On the basis of the above technical scheme, the utility model can also be improved as follows.

[0010] Further, the adjusting assembly further comprises a groove, which is arranged on the end face of the nut.

[0011] Further, the identification assembly comprises a first clamping plate, a second clamping plate, a protrusion and an identification rod, the first clamping plate and the second clamping plate are fixedly installed on the side wall of the identification rod, and the first clamping plate and the second clamping plate are clamped and attached to the two ends of the nut.

[0012] Further, the number of the protrusions is two, and the two protrusions are respectively installed on the first clamping plate and the second clamping plate, and the side, away from the first clamping plate and the second clamping plate, of each protrusion is respectively inserted into the groove on the two ends of the nut.

[0013] Further, the protrusion is designed in a semispherical shape, the inner cavity of the groove is designed in a semispherical shape matching the protrusion, and the grooves are distributed in a ring shape on the nut as viewed from the top surface of the nut.

[0014] Further, the side wall of the limiting ring is provided with a slot, one end of the identification rod is movably inserted into the slot of the limiting ring, and the surface of the identification rod is provided with a scale line.

[0015] Compared with the prior art, the technical scheme has the following beneficial technical effects:

[0016] 1. The limiting ring is sleeved on the central shaft, the threaded rod on the limiting ring is twisted to drive the limiting ring to move the central shaft, the position of the central shaft is adjusted, the central shaft can move and adjust in four directions by cooperating with the threaded rods in four directions, and the central shaft is ensured to be on the central axis of the steel pipe.

[0017] 2. The grooves are arranged on the nut, the grooves are clamped with the protrusions, the rotation of the threaded rod can drive the identification rod to move, the scale line on the identification rod is matched, the distance between the nut and the limiting ring is displayed, the distance of the four threaded rods is ensured to be consistent, and the central shaft is ensured to be on the central axis of the steel pipe. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The structure schematic view of the pipe shaft concentricity adjusting device is provided for the embodiment of the utility model;

[0019] Figure 2 The three-dimensional structure schematic view of the steel pipe is provided for the utility model;

[0020] Figure 3 The three-dimensional structure schematic view of the adjusting assembly is provided for the utility model;

[0021] Figure 4The utility model discloses a sectional view three-dimensional structure schematic diagram of the limiting ring.

[0022] In the drawings, the component list represented by each sign is as follows:

[0023] 1, base; 2, support plate; 3, roller; 4, steel pipe; 5, center shaft; 6, limiting ring; 7, adjusting assembly; 701, threaded rod; 702, nut; 703, groove; 8, threaded slot; 9, identification assembly; 901, first clamping plate; 902, second clamping plate; 903, protruding block; 904, indicating rod; 10, slot. DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0026] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element, or connected to the other element through a central element. In the following embodiments, "connected" means that the circuits, modules, units, etc. connected to each other have the transmission of electrical signals or data.

[0027] As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. It should also be understood that the term "comprising" or "including" or "having" etc. specifies the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but does not exclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

[0028] It should be noted that: similar signs and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0029] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the technical product is usually placed, and are only for the convenience of describing the technology and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the technology. In addition, "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can be explicitly or implicitly included one or more. Therefore, the terms "first", "second", "third" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more.

[0030] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0031] In the description of the technology, it should also be noted that unless otherwise specified and limited, the terms "set", "install", "connect", "connect" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the technology can be understood according to the specific circumstances.

[0032] Please refer to Figure 1 , Figure 2 and Figure 3 A pipe shaft concentricity adjusting device, comprising a base 1;

[0033] A support plate 2 is installed on the top of the base 1, a roller 3 is installed on the top of the support plate 2, a steel pipe 4 is movably attached to the top of the roller 3, a center shaft 5 is sleeved on the inner wall of the steel pipe 4, a limiting ring 6 is sleeved on the outer wall of the center shaft 5, and an adjusting assembly 7 is installed on the side wall of the limiting ring 6;

[0034] The support plate 2 is arranged on the base 1, which facilitates the use of the roller 3 on the support plate 2 to support the steel pipe 4, and the arrangement of the roller 3 also facilitates the rotation of the steel pipe 4.

[0035] The adjusting assembly 7 comprises a threaded rod 701 and a nut 702, one end of the threaded rod 701 is threadedly inserted on the side wall of the limiting ring 6, and the other end of the threaded rod 701 is in close contact with the inner wall of the steel pipe 4, the nut 702 is fixedly installed on the side wall of the threaded rod 701, and the top of the nut 702 is provided with an identification assembly 9, which is used to identify the distance between the nut 702 and the limiting ring 6.

[0036] When the threaded rod 701 is screwed, since the threaded rod 701 is threadedly connected with the limiting ring 6, and one end of the threaded rod 701 is in close contact with the inner wall of the steel pipe 4, the limiting ring 6 moves away from the inner wall of the steel pipe 4, and the inner wall of the limiting ring 6 is in close contact with the outer wall of the central shaft 5, thereby driving the central shaft 5 to move, so as to adjust the position of the central shaft 5, so that the central shaft 5 can be on the central shaft 5 line of the steel pipe 4.

[0037] The nut 702 is arranged on the threaded rod 701, which facilitates the worker to clamp the nut 702 with a wrench to screw the threaded rod 701.

[0038] Please refer to Figure 2 and Figure 3 The side wall of the limiting ring 6 of the embodiment is provided with a threaded groove 8, the number of the threaded rod 701 and the threaded groove 8 is four, four threaded rods 701 are threadedly connected in the inner cavities of the four threaded grooves 8 respectively, and the four threaded rods 701 and the four threaded grooves 8 are uniformly distributed on the side wall of the limiting ring 6.

[0039] The four threaded rods 701 are distributed in four directions of the limiting ring 6, by screwing the threaded rods 701 at different positions, the central shaft 5 is pushed in different directions, and finally the central shaft 5 is adjusted to the central shaft 5 line of the steel pipe 4.

[0040] Please refer to Figure 3 and Figure 4 The adjusting assembly 7 of the embodiment further comprises a groove 703, which is arranged on the end faces of the upper and lower sides of the nut 702.

[0041] Please refer to Figure 1 The identification assembly 9 comprises a first clamping plate 901, a second clamping plate 902, a protrusion 903 and an identification rod 904, the first clamping plate 901 and the second clamping plate 902 are fixedly installed on the side wall of the identification rod 904, and the first clamping plate 901 and the second clamping plate 902 are clamped on the two ends of the nut 702.

[0042] The first clamping plate 901 and the second clamping plate 902 are clamped on the nut 702, so that when the threaded rod 701 rotates, the identification rod 904 can be driven to move up and down together, and at the same time, the first clamping plate 901 and the second clamping plate 902 will not hinder the normal rotation of the threaded rod 701.

[0043] Please refer to Figure 3 and Figure 4 The number of the protrusions 903 is two, and the two protrusions 903 are respectively arranged on the first clamping plate 901 and the second clamping plate 902, and the two protrusions 903 respectively insert into the grooves 703 on the two ends of the nut 702.

[0044] The two protrusions 903 are clamped into the grooves 703, which can enhance the connection between the first clamping plate 901, the second clamping plate 902 and the nut 702, and prevent the two from being separated.

[0045] Please refer to Figure 4 The protrusions 903 are designed as a whole in a semispherical shape, the inner cavities of the grooves 703 are designed as a semispherical shape matched with the protrusions 903, and the grooves 703 are distributed on the nut 702 in a ring shape from the top view of the nut 702.

[0046] The semispherical protrusions 903 are matched with the semispherical grooves 703, which reduces the friction between the two, and enables the protrusions 903 to slide in the inner cavities of the grooves 703.

[0047] Please refer to Figure 4 The side wall of the limiting ring 6 is provided with a slot 10, one end of the indicating rod 904 is movably inserted into the slot 10 of the limiting ring 6, and the surface of the indicating rod 904 is provided with a scale line.

[0048] The scale line on the indicating rod 904 facilitates the intuitive display of the distance between the nut 702 and the limiting ring 6 during the screwing of the threaded rods 701, and ensures that the central shaft 5 is on the center axis of the steel pipe 4 when the distance of the nut 702 on each threaded rod 701 is consistent.

[0049] The above only describes the preferred embodiments of the present application, and does not limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A pipe shaft concentricity adjusting device, comprising a base (1), characterized in that: a supporting plate (2) is mounted on the top of the base (1), a roller (3) is mounted on the top of the supporting plate (2), a steel pipe (4) is movably attached to the top of the roller (3), a center shaft (5) is sleeved on the inner wall of the steel pipe (4), a limiting ring (6) is sleeved on the outer wall of the center shaft (5), and an adjusting assembly (7) is mounted on the side wall of the limiting ring (6). The adjusting assembly (7) comprises a threaded rod (701) and a nut (702), one end of the threaded rod (701) is threadedly inserted into the side wall of the limiting ring (6), the other end of the threaded rod (701) is attached to the inner wall of the steel pipe (4), the nut (702) is fixedly mounted on the side wall of the threaded rod (701), and an identification assembly (9) is mounted on the top of the nut (702). The side wall of the limiting ring (6) is provided with four threaded grooves (8), the number of the threaded rod (701) and the threaded groove (8) is four, four threaded rods (701) are respectively threadedly connected in the inner cavities of four threaded grooves (8), and the four threaded rods (701) and the four threaded grooves (8) are evenly distributed on the side wall of the limiting ring (6).

2. A pipe shaft concentricity adjusting device according to claim 1, wherein The adjusting assembly (7) further comprises a groove (703) formed on the end faces of the upper and lower sides of the nut (702).

3. A pipe shaft concentricity adjusting device according to claim 1, wherein The identification assembly (9) comprises a first clamping plate (901), a second clamping plate (902), a protrusion (903) and an indicating rod (904), the first clamping plate (901) and the second clamping plate (902) are fixedly mounted on the side wall of the indicating rod (904), and the first clamping plate (901) and the second clamping plate (902) are clamped and attached to the two ends of the nut (702).

4. A pipe shaft concentricity adjusting device according to claim 1, wherein The number of the protrusions (903) is two, the two protrusions (903) are respectively mounted on the first clamping plate (901) and the second clamping plate (902), and the sides of the two protrusions (903) away from the first clamping plate (901) and the second clamping plate (902) are respectively inserted into the grooves (703) on the two ends of the nut (702).

5. A pipe shaft concentricity adjusting device according to claim 4, wherein The protrusions (903) are designed in a semispherical shape, the inner cavities of the grooves (703) are designed in a semispherical shape matched with the protrusions (903), and the grooves (703) are distributed in a ring shape on the nut (702) as viewed from the top surface of the nut (702).

6. A pipe shaft concentricity adjusting device according to claim 4, wherein The side wall of the limiting ring (6) is provided with a slot (10), one end of the indicating rod (904) is movably inserted into the slot (10) of the limiting ring (6), and a scale line is arranged on the surface of the indicating rod (904).

7. A pipe shaft concentricity adjusting device according to claim 1, wherein ​

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