Sleeved cylinder concentricity adjusting and measuring device

Abstract

The utility model discloses a sleeved cylinder concentricity adjusting and measuring device, which comprises an inner cylinder and an outer cylinder, and comprises a plurality of adjusting assemblies for adjusting the concentricity of the sleeved cylinder and a plurality of gap measuring assemblies for measuring the gap width change of the sleeved cylinder along the axial position. According to the nested cylinder concentricity adjusting and measuring device, the first connecting assembly and the second connecting assembly can be driven by the operating part to move, so that the distance between the inner cylinder and the outer cylinder is adjusted, namely, the concentricity of the nested cylinder is adjusted, meanwhile, the gap width change rule of the nested cylinder in the axial direction is measured by the gap measuring assembly, and the concentricity of the nested cylinder is measured. And data support is provided for optimization of sleeving cylinder machining and an assembly process. The sleeved cylinder concentricity adjusting and measuring device is small and simple in structure, small in installation space and flexible in installation position.

Description

Technical Field

[0001] This utility model relates to the field of cylinder installation, and in particular to a device for adjusting and measuring the concentricity of fitting cylinders. Background Technology

[0002] When assembling the fitting cylinder, concentricity is a key concern. Currently, various auxiliary tools are available. For example, adjusting the relative difference in distance between the cylinder and the central axis of several legs evenly distributed around the outer circumference of the circular base inside the cylinder can help regulate concentricity. Adjusting the inner cylinder's movable platform ensures coaxiality between the inner and outer cylinders. Furthermore, laser measurement of the fitting cylinder's concentricity can be achieved using laser rulers, laser collimators, and CCDs. Additionally, segmented feeler gauges can be used to measure and compare the differences in gaps between the cylinders to determine concentricity. However, the above tools have the following problems: 1. The auxiliary tooling is mostly specialized, and the versatility between different fitting cylinders is poor; 2. The installation space and position of laser equipment are limited, and it is easily affected by environmental factors such as smoke and dust. At the same time, it has certain requirements on the reflective characteristics of the target surface. For example, if the reflective surface is too rough or the reflectivity is low, it may affect the accuracy of the measurement, and the measurement cost is high; 3. When measuring gaps with segmented feeler gauges, the gaps are small and difficult for the operator to observe. The measurement results depend on the experience of the measuring personnel and are greatly affected by subjective factors. Moreover, the operation is inconvenient and it is difficult to complete the measurement in assemblies where it is inconvenient to insert feeler gauges. For example, when the cylinder diameter changes, the gap width changes along the axial direction (the gaps at both ends of the cylinder are narrower and the gaps in the middle are wider, and the feeler gauge cannot measure the gap width in the middle position). Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a device for adjusting and measuring the concentricity of a fitted cylinder.

[0004] The technical solution adopted by this utility model to solve its technical problem is: to construct a fitting cylinder concentricity adjustment and measuring device, the fitting cylinder including an inner cylinder and an outer cylinder, which includes multiple adjustment components for adjusting the concentricity of the fitting cylinder and multiple gap measuring components for measuring the gap width change of the fitting cylinder along the axial position.

[0005] The adjustment assembly includes an operating component, a first connecting component that is throttle-connected to a first end of the operating component and connected to the inner cylinder, and a second connecting component that is throttle-connected to a second end of the operating component and connected to the outer cylinder.

[0006] The gap measuring assembly includes a pipe connector and a measuring device. The pipe connector is fixedly connected to the outer wall of the outer cylinder. The pipe connector has a through hole for the measuring end of the measuring device to pass through. The measuring end of the measuring device passes through the through hole and is used to measure the gap width.

[0007] In some embodiments, the first connecting assembly includes a first adjusting rod that is throttledly connected to a first end of the operating member, a first connecting block that is fixedly connected to the first adjusting rod, a first positioning pin that is connected to the first connecting block, and a first cotter pin mounted on the first positioning pin. The first positioning pin is connected to the inner cylinder, and the first cotter pin is used for positioning between the first positioning pin and the inner cylinder.

[0008] In some embodiments, the second connecting assembly includes a second adjusting rod that is throttle-connected to the second end of the operating member, a second connecting block that is fixedly connected to the second adjusting rod, a second positioning pin that is connected to the second connecting block, and a second cotter pin that is mounted on the second positioning pin. The second positioning pin is connected to the outer cylinder, and the second cotter pin is used for positioning between the second positioning pin and the outer cylinder.

[0009] In some embodiments, the adjustment assembly further includes a first locking member and a second locking member separately installed at both ends of the operating member, the first locking member being used to fix the relative position of the first adjusting rod and the operating member, and the second locking member being used to fix the relative position of the second adjusting rod and the operating member.

[0010] In some embodiments, the operating element is a positive and negative thread nut, the first adjusting rod and the second adjusting rod are both screws, and the first locking element and the second locking element are both positioning nuts.

[0011] In some embodiments, the number of adjustment components is four, and the four adjustment components are arranged separately along the circumferential direction of the outer cylinder.

[0012] In some embodiments, the gap measuring assembly further includes a clamping head and a seal, the seal being connected to the end of the pipe joint away from the outer cylinder, the clamping head being installed between the seal and the pipe joint, and the clamping head covering the through hole.

[0013] In some embodiments, the gap measuring assembly further includes a reference member, the outer wall surface of which is flush with the inner wall surface of the outer cylinder.

[0014] In some embodiments, a plurality of the gap measuring components are spaced apart along the axial direction of the outer cylinder.

[0015] In some embodiments, the measuring instrument is a vernier caliper.

[0016] The present invention offers the following advantages: The concentricity adjustment and measuring device for the fitted cylinder can move the first and second connecting components using an operating component, thereby adjusting the distance between the inner and outer cylinders, thus regulating the concentricity of the fitted cylinder. Simultaneously, the gap measuring component measures the change in gap width along the axial direction of the fitted cylinder, providing data support for optimizing the machining and assembly processes of the fitted cylinder. This concentricity adjustment and measuring device has a compact and simple structure, requires minimal installation space, and allows for flexible installation placement. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show some embodiments of this utility model and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of the fitting cylinder concentricity adjustment and measuring device in some embodiments of this utility model;

[0019] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 yes Figure 1 Enlarged view of point B in the middle;

[0021] Figure 4 This is a schematic diagram of the structure of the adjustment component in some embodiments of this utility model;

[0022] Figure 5 This is a structural cross-sectional view of the adjustment component in some embodiments of this utility model;

[0023] Figure 6 This is a schematic diagram of the gap measuring component in some embodiments of the present invention;

[0024] Figure 7 This is a structural cross-sectional view of the gap measuring component in some embodiments of this utility model;

[0025] Figure 8 This is a schematic diagram illustrating the measurement application of the gap measuring component in some embodiments of this utility model. Detailed Implementation

[0026] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0027] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0028] See Figures 1 to 8 This is a device for adjusting and measuring the concentricity of a fitting cylinder in some embodiments of this utility model. The fitting cylinder 1 includes an inner cylinder 11 and an outer cylinder 12. The geometry of the fitting cylinder 1 is not limited, including cylinders, curved cylinders, polyhedra, etc. The concentricity adjustment and measuring device for the fitting cylinder 1 includes multiple adjustment components 2 for adjusting the concentricity of the fitting cylinder 1 and multiple gap measuring components 3 for measuring the change in gap width along the axial position of the fitting cylinder 1. The adjustment components 2 include an operating member 21, a first connecting component 22 that is drivenly connected to the first end of the operating member 21 and connected to the inner cylinder 11, and a second connecting component 23 that is drivenly connected to the second end of the operating member 21 and connected to the outer cylinder 12. The gap measuring components 3 include a pipe joint 31 and a measuring device 32. The pipe joint 31 is fixedly connected to the outer wall surface of the outer cylinder 12. A through hole 311 is provided in the pipe joint 31 for the measuring end of the measuring device 32 to pass through. The measuring end of the measuring device 32 passes through the through hole 311 and is used to measure the gap width.

[0029] Understandably, since the first end of the operating component 21 is connected to the first connecting assembly 22 and the second end of the operating component 21 is connected to the second connecting assembly 23, the concentricity adjustment and measuring device for the fitting cylinder can use the operating component 21 to drive the first connecting assembly 22 and the second connecting assembly 23 to move, thereby adjusting the distance between the inner cylinder 11 and the outer cylinder 12, that is, adjusting the concentricity of the fitting cylinder 1. At the same time, the gap measuring assembly 3 is used to measure the gap width variation law along the axial position of the fitting cylinder 1, providing data support for the optimization of the machining and assembly process of the fitting cylinder 1. The concentricity adjustment and measuring device for the fitting cylinder has a small and simple structure, requires little installation space, and can be installed in a flexible position.

[0030] The components of the adjustment assembly 2 and the gap measuring assembly 3 can be made of high-strength stainless steel.

[0031] like Figure 2 , Figure 4 and Figure 5 As shown, the first connecting assembly 22 includes a first adjusting rod 221 pulverically connected to the first end of the operating member 21, a first connecting block 222 fixedly connected to the first adjusting rod 221, a first positioning pin 223 connected to the first connecting block 222, and a first cotter pin 224 mounted on the first positioning pin 223. The first positioning pin 223 is connected to the inner cylinder 11, and the first cotter pin 224 is used for positioning between the first positioning pin 223 and the inner cylinder 11. The second connecting assembly 23 includes a second adjusting rod 231 pulverically connected to the second end of the operating member 21, a second connecting block 232 fixedly connected to the second adjusting rod 231, a second positioning pin 233 connected to the second connecting block 232, and a second cotter pin 234 mounted on the second positioning pin 233. The second positioning pin 233 is connected to the outer cylinder 12, and the second cotter pin 234 is used for positioning between the second positioning pin 233 and the outer cylinder 12. The adjusting assembly 2 also includes a first locking member 24 and a second locking member 25 separately mounted at both ends of the operating member 21. The first locking member 24 is used to fix the relative position of the first adjusting rod 221 and the operating member 21, and the second locking member 25 is used to fix the relative position of the second adjusting rod 231 and the operating member 21.

[0032] Specifically, the operating component 21 is a nut with both positive and negative threads, the first adjusting rod 221 and the second adjusting rod 231 are both screws, and the first locking component 24 and the second locking component 25 are both positioning nuts. The adjustment assembly 2 is a detachable structure. During assembly, the first adjusting rod 221 and the second adjusting rod 231 are screwed into the operating component 21, with the screwing lengths of the first adjusting rod 221 and the second adjusting rod 231 being equal. The first locating pin 223 connects the first connecting block 222 to the inner cylinder 11, and the second locating pin 233 connects the second connecting block 232 to the outer cylinder 12. The first cotter pin 224 and the second cotter pin 234 are used to install the entire adjustment assembly 2. The first locating pin 223, the second locating pin 233, the first cotter pin 224, and the second cotter pin 234 are all detachable.

[0033] Furthermore, there are four adjusting components 2, which are arranged separately along the circumferential direction of the outer cylinder 12. Specifically, after the four adjusting components 2 are installed at the bottom of the inner cylinder 11 in four directions (0°, 90°, 180°, and 270°), the operating piece 21, being a threaded nut, can be screwed on to lengthen or shorten the adjusting component 2, continuously adjusting the spatial position of the inner cylinder 11 relative to the outer cylinder 12, thus achieving concentricity adjustment of the fitted cylinders. Additionally, the operating piece 21 can be tilted relative to the horizontal plane of the inner cylinder 11, allowing for multi-angle tilting support and adjustment of the radial position of the inner cylinder 11. Once the concentricity of the inner cylinder is adjusted to the correct position, the first locking member 24 can fix the relative position of the first adjusting rod 221 and the operating member 21, and the second locking member 25 can fix the relative position of the second adjusting rod 231 and the operating member 21. Additionally, the adjusting assembly 2 can be spot-welded to fix the position between the adjusting assembly 2 and the inner cylinder 1, ensuring that the concentricity of the inner cylinder 1 does not change during hoisting, transportation, or other movements. The weld points on the adjusting assembly 2 can be ground off, the position of the inner cylinder 11 readjusted, and then spot-welded again for reuse.

[0034] like Figure 3 , Figure 6 and Figure 7 As shown, the gap measuring assembly 3 also includes a clamping head 33 and a sealing element 34. The sealing element 34 is connected to the end of the pipe joint 31 away from the outer cylinder 12. The clamping head 33 is installed between the sealing element 34 and the pipe joint 31, and the clamping head 33 covers the through hole 311. Multiple gap measuring assemblies 3 are spaced apart along the axial direction of the outer cylinder 12. Figure 8 As shown, the gap measuring assembly 3 also includes a reference member 35, the outer wall surface of which is flush with the inner wall surface of the outer cylinder 12. Preferably, the measuring instrument 32 is a vernier caliper.

[0035] Specifically, the gap measuring component 3 can be welded to the outer wall of the outer cylinder 12. A through hole 311 is provided inside the pipe joint 31. The clamping head 33 and the sealing element 34 are used for sealing the fitted cylinder 1. When measuring the gap between the inner cylinder 11 and the outer cylinder 12, the clamping head 33 and the sealing element 34 can be removed, and then the probe of the vernier caliper can be inserted into the pipe joint 31 to measure the gap width. The steps for measuring the gap width between the fitted cylinders 1 using the gap measuring component 3 are as follows:

[0036] 1. After the outer cylinder 12 of the fitting cylinder 1 is machined, the initial depth is calibrated. The probe of the vernier caliper is passed through the through hole 311 of the pipe joint 31. The outer wall surface of the reference part 35 is flush with the inner wall surface of the outer cylinder 12. At this time, the probe of the vernier caliper is pressed against the outer wall surface of the reference part 35. The distance measured at this time is the distance from the end face of the pipe joint 31 to the inner wall surface of the outer cylinder 12. Then the probe of the vernier caliper is pulled out. The reference part 35 can be a steel rod.

[0037] 2. Take a reading from the vernier caliper, record the initial probe length, and remove the reference piece 35.

[0038] 3. After the inner cylinder 11 is installed in place, use the probe of the vernier caliper to pass through the through hole 311 of the pipe joint 31. Since the reference piece 35 has been removed, the probe of the vernier caliper can be inserted. At this time, the probe of the vernier caliper presses against the outer wall surface of the inner cylinder 11. The distance measured at this time is the distance from the end face of the pipe joint 31 to the outer wall surface of the inner cylinder 11. Then, pull out the probe of the vernier caliper.

[0039] 4. Take readings from the vernier caliper and record the length of the subsequent probe;

[0040] 5. Subtract the initial probe length from the subsequent probe length to obtain the current gap width between the fitted cylinders 1.

[0041] When the gap between the cylinders is not measured, a clamping head 33 is installed at the pipe joint 31 and the sealing element 34 is locked to ensure the sealing of the fitted cylinder 1.

[0042] In summary, this concentricity adjustment and measurement device for the fitted cylinder achieves concentricity adjustment and control by adjusting the position of the inner cylinder 11 through the adjustment component 2, and quantitatively analyzes the concentricity deviation of the fitted cylinder 1 through the gap measurement component 3. The gap measurement component 3 is installed at different axial positions and angular orientations of the outer cylinder 12, and a vernier caliper probe measures the gap width between the inner cylinder 11 and the outer cylinder 12. By comparing the difference in gap width between the inner and outer cylinders at different axial positions and angular orientations of the fitted cylinder 1, the concentricity deviation of the cylinder is detected and quantitatively analyzed. When the fitted cylinder 1 has a variable diameter, it can conveniently measure the gap width along the axial position of the fitted cylinder 1, without being limited by the geometry of the fitted cylinder 1. When the fitted cylinder 1 has a variable diameter, it can conveniently measure the variation law of the gap width along the axial position of the fitted cylinder 1, providing data support for the optimization of the machining and assembly process of the fitted cylinder 1.

[0043] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

Claims

1. A device for adjusting and measuring the concentricity of a fitting cylinder, wherein the fitting cylinder (1) comprises an inner cylinder (11) and an outer cylinder (12), characterized in that, It includes multiple adjustment components (2) for adjusting the concentricity of the sleeve body (1) and multiple gap measuring components (3) for measuring the gap width change of the sleeve body (1) along the axial position; The adjustment assembly (2) includes an operating member (21), a first connecting assembly (22) that is throttle-connected to the first end of the operating member (21) and connected to the inner cylinder (11), and a second connecting assembly (23) that is throttle-connected to the second end of the operating member (21) and connected to the outer cylinder (12). The gap measuring assembly (3) includes a pipe connector (31) and a measuring device (32). The pipe connector (31) is fixedly connected to the outer wall of the outer cylinder (12). A through hole (311) is provided in the pipe connector (31) for the measuring end of the measuring device (32) to pass through. The measuring end of the measuring device (32) passes through the through hole (311) and is used to measure the gap width.

2. The concentricity adjustment and measuring device for the fitted cylinder according to claim 1, characterized in that, The first connecting assembly (22) includes a first adjusting rod (221) that is throttlely connected to the first end of the operating member (21), a first connecting block (222) that is fixedly connected to the first adjusting rod (221), a first positioning pin (223) that is connected to the first connecting block (222), and a first cotter pin (224) that is mounted on the first positioning pin (223). The first positioning pin (223) is connected to the inner cylinder (11), and the first cotter pin (224) is used for positioning between the first positioning pin (223) and the inner cylinder (11).

3. The concentricity adjustment and measuring device for the fitted cylinder according to claim 2, characterized in that, The second connecting assembly (23) includes a second adjusting rod (231) that is throttlely connected to the second end of the operating member (21), a second connecting block (232) that is fixedly connected to the second adjusting rod (231), a second positioning pin (233) that is connected to the second connecting block (232), and a second cotter pin (234) that is mounted on the second positioning pin (233). The second positioning pin (233) is connected to the outer cylinder (12), and the second cotter pin (234) is used for positioning between the second positioning pin (233) and the outer cylinder (12).

4. The concentricity adjustment and measuring device for the fitted cylinder according to claim 3, characterized in that, The adjustment assembly (2) further includes a first locking member (24) and a second locking member (25) separately installed at both ends of the operating member (21). The first locking member (24) is used to fix the relative position of the first adjusting rod (221) and the operating member (21), and the second locking member (25) is used to fix the relative position of the second adjusting rod (231) and the operating member (21).

5. The concentricity adjustment and measuring device for the fitted cylinder according to claim 4, characterized in that, The operating component (21) is a nut with both positive and negative threads, the first adjusting rod (221) and the second adjusting rod (231) are both screws, and the first locking component (24) and the second locking component (25) are both positioning nuts.

6. The concentricity adjustment and measuring device for the fitted cylinder according to claim 1, characterized in that, The number of adjustment components (2) is four, and the four adjustment components (2) are arranged separately along the circumferential direction of the outer cylinder (12).

7. The concentricity adjustment and measuring device for the fitted cylinder according to claim 1, characterized in that, The gap measuring assembly (3) also includes a clamping head (33) and a sealing element (34), the sealing element (34) being connected to the end of the pipe joint (31) away from the outer cylinder (12), the clamping head (33) being installed between the sealing element (34) and the pipe joint (31), and the clamping head (33) covering the through hole (311).

8. The concentricity adjustment and measuring device for the fitted cylinder according to claim 1, characterized in that, The gap measuring component (3) also includes a reference component (35), the outer wall surface of which is flush with the inner wall surface of the outer cylinder (12).

9. The concentricity adjustment and measuring device for the fitted cylinder according to claim 1, characterized in that, Multiple gap measuring components (3) are arranged separately along the axial direction of the outer cylinder (12).

10. The concentricity adjustment and measuring device for the fitted cylinder according to claim 1, characterized in that, The measuring instrument (32) is a vernier caliper.

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