Eccentricity detection device for eccentric bushing

Abstract

The utility model relates to an eccentricity detection device for an eccentric bushing, and the device comprises a support which is provided with a central hole; the detection assembly comprises a ring sleeve and a dial indicator, the dial indicator is detachably connected with the ring sleeve, the ring sleeve is rotatably arranged on the support, and the ring sleeve and the center hole are coaxially arranged; the inner supporting assembly is composed of a lifting disc and four sets of inner supporting parts, each inner supporting part comprises a clamping block, a first connecting rod and a second connecting rod, the lifting disc is arranged below the support in a lifting mode, the first connecting rods are hinged between the clamping blocks and the support, and the second connecting rods are hinged between the clamping blocks and the lifting disc. According to the eccentricity detection device for the eccentric bushing, during lifting of the lifting disc, the four groups of clamping blocks can be synchronously close to or away from the shaft part of the eccentric bushing, so that the device can adapt to different eccentric bushings, and the shaft part of the eccentric bushing can coincide with the axis of the central hole, thereby facilitating subsequent detection of a dial indicator.

Description

Technical Field

[0001] The utility model relates to the technical field of eccentric sleeve detection, in particular to an eccentric amount detection device for an eccentric sleeve. Background Art

[0002] The eccentric sleeve is a sleeve or casing with an eccentric distance. It can be a measuring tool and is also commonly used to measure axial displacement and rotational displacement. It can achieve dynamic balance of the rotating shaft through different eccentric distances to avoid mechanical vibration and noise caused by imbalance. It is widely used and suitable for various industrial machinery manufacturing and assembly processes. Before installation, it is necessary to estimate and calculate according to the actual situation to ensure that the use effect of the eccentric sleeve reaches the expected effect. For this reason, the eccentricity of the eccentric sleeve needs to be detected.

[0003] In the existing eccentric sleeve eccentricity detection, such as the Chinese utility patent with publication number CN205228363U, which is a device for detecting the eccentricity of an outer circle of an eccentric sleeve, its overall composition includes a gauge seat, a rotating handle, a rotating pin, a fastening screw, a dial indicator and a support. After the eccentric sleeve is built into the gauge seat, the rotating pin is changed to adapt to eccentric sleeves with different inner diameters, thereby measuring the eccentricity of eccentric sleeves with different inner diameters.

[0004] In the above-mentioned prior art, the rotating pin is used as a clamping component for the eccentric sleeve, but a rotating pin of a single size can only clamp the eccentric sleeve of a single size. For eccentric sleeves of different sizes, rotating pins of different sizes need to be replaced. Frequent replacement of rotating pins and finding rotating pins of different sizes are inconvenient. Therefore, an eccentricity detection device for an eccentric sleeve is proposed. Utility Model Content

[0005] Based on the above description, the utility model provides an eccentric amount detection device for an eccentric sleeve, which solves the technical problem that the clamping component of the eccentric sleeve cannot adapt to rotating pins of different sizes.

[0006] The utility model solves the above technical problems with the following technical solutions: an eccentricity detection device for an eccentric sleeve, comprising:

[0007] A bracket having a center hole formed therein;

[0008] The detection assembly comprises a ring sleeve and a dial indicator, wherein the dial indicator is detachably connected to the ring sleeve, the ring sleeve is rotatably arranged on the bracket, and the ring sleeve is coaxially arranged with the center hole;

[0009] The internal support assembly consists of a lifting plate and four groups of internal support components. The internal support components are used to clamp the eccentric sleeve shaft and make the eccentric sleeve shaft coincide with the axis of the center hole. The internal support components include a clamping block, a connecting rod 1 and a connecting rod 2. The lifting plate can be lifted and lowered below the bracket. The connecting rod 1 is hinged between the clamping block and the bracket, and the connecting rod 2 is hinged between the clamping block and the lifting plate.

[0010] On the basis of the above technical solution, the present invention can also be improved as follows.

[0011] Furthermore, the bracket includes a platform, a column is fixed at the bottom of the platform, the platform is connected to the base through the column, the center hole is opened on the platform, and the diameter of the center hole is larger than the eccentric sleeve shaft, so that the eccentric sleeve shaft can pass through the center hole.

[0012] Furthermore, there is a spacing space between the base and the platform, the internal support assembly is located in the spacing space, the lifting plate and the center hole are arranged coaxially, and the four groups of internal support components are distributed in a circle between the lifting plate and the platform.

[0013] Furthermore, the bottom of the base has a cavity, and an electric push rod is arranged in the cavity, and the lifting plate is raised and lowered by the electric push rod.

[0014] Furthermore, a receiving frame is fixed to the bottom of the lifting plate, and the lifting plate is connected to the electric push rod through the receiving frame. A positioning column is arranged at the center of the upper surface of the receiving frame. The diameter of the positioning column is smaller than the diameter of the eccentric sleeve shaft, and the positioning column is arranged coaxially with the center hole.

[0015] Furthermore, a notch is provided on one side of the clamping block close to the eccentric sleeve shaft, and a cross section of the notch is V-shaped.

[0016] Furthermore, a convex disc is fixed on the platform, and the ring sleeve is rotatably connected to the convex disc. The convex disc has a transition step, and a ring cavity is opened at the transition step. A plurality of rolling steel balls are arranged in the ring cavity to facilitate the rotation of the ring sleeve.

[0017] Furthermore, a mounting hole is provided in the radial direction of the ring sleeve, and the dial indicator is detachably connected to the mounting hole.

[0018] Furthermore, a threaded hole is provided on the upper surface of the ring sleeve, and a locking bolt is threadedly connected in the threaded hole, so that the dial indicator can be locked in the installation hole.

[0019] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0020] The eccentric amount detection device of the eccentric sleeve can make the four groups of clamps synchronously approach or move away from the eccentric sleeve shaft during the lifting of the lifting plate. It can adapt to different eccentric sleeves and make the eccentric sleeve shaft coincide with the axis of the center hole to facilitate subsequent detection of the dial indicator. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic structural diagram of an eccentricity detection device for an eccentric sleeve provided in an embodiment of the utility model;

[0022] Figure 2 for Figure 1 A structural diagram from another perspective;

[0023] Figure 3 This is a schematic diagram of the structure of the eccentric sleeve in the embodiment of the utility model;

[0024] Figure 4 Based Figure 1 Schematic diagram of the half-section structure;

[0025] Figure 5 This is a schematic diagram of the structure of the rolling steel ball in the embodiment of the utility model;

[0026] Figure 6 It is a structural schematic diagram of the inner support assembly in an embodiment of the utility model.

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] 1. Bracket; 11. Platform; 12. Column; 13. Base; 14. Boss; 15. Rolling steel ball; 2. Detection assembly; 21. Ring sleeve; 22. Dial indicator; 3. Inner support assembly; 31. Clamp block; 32. Lifting plate; 33. Connecting rod one; 34. Connecting rod two; 4. Eccentric sleeve shaft; 5. Eccentric sleeve disc; 6. Electric push rod; 7. Receiver; 8. Positioning column. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0030] like Figure 3 As shown, the eccentric sleeve consists of an eccentric sleeve shaft portion 4 and an eccentric sleeve disc portion 5. An eccentric amount detection device for an eccentric sleeve in this embodiment mainly detects this type of eccentric sleeve, and the detection portion is the outer contour of the eccentric sleeve disc portion 5.

[0031] like Figure 1 and Figure 2As shown, an eccentric sleeve eccentricity detection device in this embodiment includes a bracket 1, a detection component 2 and an inner support component 3, wherein a center hole is opened on the bracket 1, and the detection component 2 can be rotatably set on the bracket 1 for detecting the eccentricity of the eccentric sleeve disc 5, while the inner support component 3 is mainly used for clamping the eccentric sleeve shaft 4 of different sizes, and plays the role of making the eccentric sleeve shaft 4 coincide with the axis of the center hole.

[0032] First, the structure and position of the detection component 2 are described. Figure 2 As shown, the detection assembly 2 includes a ring sleeve 21 and a dial indicator 22, wherein the ring sleeve 21 can be rotatably arranged on the bracket 1, so that the dial indicator 22 can detect the eccentricity of the outer contour of the eccentric sleeve disc part 5.

[0033] For further explanation of the rotatable arrangement between the ring sleeve 21 and the bracket 1, as shown in FIG. Figure 4 and 5 As shown, a convex disc 14 is fixed on the platform 11, the middle of the convex disc 14 is hollow, and the inner diameter of the hollow part is preferably the same as the inner diameter of the ring sleeve 21, so that the eccentric sleeve part 5 can be located in the hollow part inside the convex disc 14, and the ring sleeve 21 can be rotatably connected to the convex disc 14.

[0034] In order to facilitate the ring sleeve 21 to complete the rotation action, the convex disc 14 further has a transition step, and a ring cavity is opened at the transition step. A plurality of rolling steel balls 15 are arranged in the ring cavity. The rolling steel balls 15 make the rotation of the ring sleeve 21 more convenient, so that the dial indicator 22 can better complete the eccentricity detection of the outer contour of the eccentric sleeve disc part 5.

[0035] In addition, it should be noted that the annular sleeve 21 is coaxially arranged with the central hole, and the inner diameter of the annular sleeve 21 needs to be larger than the size of the eccentric sleeve disc portion 5 so that the eccentric sleeve disc portion 5 can be located inside the annular sleeve 21 .

[0036] The detachable relationship between the ring sleeve 21 and the dial indicator 22 is described as follows: Figure 2 As shown, a mounting hole is provided in the radial direction of the ring sleeve 21, and the dial indicator 22 is detachably connected to the mounting hole. A threaded hole is provided on the upper surface of the ring sleeve 21, and a locking bolt is threadedly connected in the threaded hole, so that the dial indicator 22 can be locked in the mounting hole.

[0037] With such a design, the operator can adjust the detection position of the dial indicator 22 by loosening or tightening the locking bolt during use.

[0038] Secondly, as the focus of this application, the structure and position of the inner support assembly 3 are explained. The inner support assembly 3 is composed of a group of lifting plates 32 and four groups of inner support components, wherein the inner support components are used to clamp the eccentric sleeve shaft portion 4 and make the eccentric sleeve shaft portion 4 coincide with the axis of the center hole.

[0039] In this embodiment, if Figure 4 and 6 As shown, the inner support component includes a clamp block 31, a connecting rod 1 33 and a connecting rod 2 34, wherein the lifting plate 32 can be lifted and lowered below the bracket 1, the connecting rod 1 33 is hinged between the clamp block 31 and the bracket 1, and the connecting rod 2 34 is hinged between the clamp block 31 and the lifting plate 32.

[0040] To further explain, the bracket 1 includes a platform 11, the above-mentioned boss 14 is fixed between the platform 11, and the connecting rod 33 is hinged between the clamping block 31 and the platform 11, and a column 12 is fixed at the bottom of the platform 11. The number of the columns 12 is eight groups, and they are distributed in a circle. The platform 11 is connected to the base 13 through the columns 12, so that there is a spacing space between the base 13 and the platform 11, and the internal support assembly 3 is located in the spacing space, the lifting plate 32 is coaxially arranged with the center hole, and the four groups of internal support components are distributed in a circle between the lifting plate 32 and the platform 11.

[0041] In addition, it should be noted that the center hole is opened on the platform 11, and the diameter of the center hole is larger than the eccentric sleeve shaft portion 4, so that the eccentric sleeve shaft portion 4 can pass through the center hole, and the size of the eccentric sleeve disc portion 5 is larger than the center hole, so that the eccentric sleeve disc portion 5 can be located on the platform 11.

[0042] A notch is provided on one side of the clamping block 31 close to the eccentric sleeve shaft portion 4 , and the cross section of the notch is V-shaped.

[0043] With such a design, when in use, when the lifting plate 32 rises, the angle between the connecting rod 1 33 and the connecting rod 2 34 in any group of inner support components will become smaller, and the clamping block 31 will move toward the eccentric sleeve shaft portion 4. In this way, the four groups of clamping blocks 31 can first complete the clamping of eccentric sleeve shaft portions 4 of different sizes. In addition, when the eccentric sleeve shaft portion 4 is not initially coaxial with the center hole, since the four groups of clamping blocks 31 are distributed in a circle, the four groups of clamping blocks 31 can make the eccentric sleeve shaft portion 4 coincide with the axis of the center hole after completing the clamping, thereby playing a role in adjusting and positioning the eccentric sleeve shaft portion 4.

[0044] For ease of understanding, the lifting design of the lifting plate 32 is such that, in a certain embodiment, the bottom of the base 13 has a cavity, in which an electric push rod 6 is disposed, and the lifting plate 32 is raised and lowered by the electric push rod 6 .

[0045] It is understandable that the lifting and lowering adjustment of the lifting plate 32 can also be, for example, adjusted by a ball screw structure or adjusted by a cylinder, which will not be elaborated herein.

[0046] In addition, a receiving frame 7 is fixed to the bottom of the lifting plate 32, and the lifting plate 32 is connected to the electric push rod 6 through the receiving frame 7. A positioning column 8 is arranged at the center of the upper surface of the receiving frame 7. The diameter of the positioning column 8 is smaller than the diameter of the eccentric sleeve shaft 4, and the positioning column 8 is arranged coaxially with the center hole.

[0047] With such a design, the receiving frame 7 does not affect the normal clamping of the inner support assembly 3, and when the eccentric sleeve is initially placed, the positioning column 8 provides a positioning reference for the placement of the eccentric sleeve, plays a role in guiding the positioning, and facilitates the operator's operation.

[0048] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. An eccentricity detection device for an eccentric sleeve, characterized in that: include: A bracket (1) having a central hole; A detection assembly (2), comprising a ring sleeve (21) and a dial indicator (22), wherein the dial indicator (22) is detachably connected to the ring sleeve (21), the ring sleeve (21) is rotatably arranged on the bracket (1), and the ring sleeve (21) is arranged coaxially with the center hole; The inner support assembly (3) is composed of a lifting plate (32) and four groups of inner support components. The inner support components are used to clamp the eccentric sleeve shaft portion (4) and make the eccentric sleeve shaft portion (4) coincide with the axis of the center hole. The inner support components include a clamping block (31), a connecting rod 1 (33) and a connecting rod 2 (34). The lifting plate (32) is movably arranged below the bracket (1). The connecting rod 1 (33) is hinged between the clamping block (31) and the bracket (1), and the connecting rod 2 (34) is hinged between the clamping block (31) and the lifting plate (32).

2. The eccentricity detection device of an eccentric sleeve according to claim 1, characterized in that: The bracket (1) comprises a platform (11), a column (12) is fixed at the bottom of the platform (11), and the platform (11) is connected to a base (13) via the column (12). The center hole is formed on the platform (11), and the diameter of the center hole is larger than the eccentric sleeve shaft portion (4), so that the eccentric sleeve shaft portion (4) can pass through the center hole.

3. The eccentricity detection device of an eccentric sleeve according to claim 2, characterized in that: There is a spacing space between the base (13) and the platform (11), the inner support component (3) is located in the spacing space, the lifting plate (32) is coaxially arranged with the center hole, and the four groups of inner support components are circumferentially distributed between the lifting plate (32) and the platform (11).

4. The eccentricity detection device of an eccentric sleeve according to claim 3, characterized in that: The bottom of the base (13) has a cavity, in which an electric push rod (6) is arranged, and the lifting plate (32) is raised and lowered by the electric push rod (6).

5. The eccentricity detection device of an eccentric sleeve according to claim 4, characterized in that: A receiving frame (7) is fixed to the bottom of the lifting plate (32), and the lifting plate (32) is connected to the electric push rod (6) via the receiving frame (7). A positioning column (8) is provided at the center of the upper surface of the receiving frame (7), and the diameter of the positioning column (8) is smaller than the diameter of the eccentric sleeve shaft (4). The positioning column (8) is coaxially arranged with the center hole.

6. The eccentricity detection device of an eccentric sleeve according to claim 1, characterized in that: A notch is provided on one side of the clamping block (31) close to the eccentric sleeve shaft portion (4), and the cross section of the notch is V-shaped.

7. The eccentricity detection device of an eccentric sleeve according to claim 2, characterized in that: A convex disc (14) is fixed on the platform (11), and the ring sleeve (21) is rotatably connected to the convex disc (14). The convex disc (14) has a transition step, and an annular cavity is provided at the transition step. A plurality of rolling steel balls (15) are arranged in the annular cavity to facilitate the rotation of the ring sleeve (21).

8. The eccentricity detection device of an eccentric sleeve according to claim 7, characterized in that: The ring sleeve (21) is provided with a mounting hole in the radial direction, and the dial indicator (22) is detachably connected to the mounting hole.

9. The eccentricity detection device of an eccentric sleeve according to claim 8, characterized in that: The upper surface of the ring sleeve (21) is provided with a threaded hole, in which a locking bolt is threadedly connected, so that the dial indicator (22) can be locked in the mounting hole.

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