Pressure vessel internal dimension measuring device
By designing a pressure vessel internal dimension measuring device including a three-claw chuck, a measuring rod, a laser ranging sensor, a rotational drive mechanism and a rotational angle detection mechanism, the problem of inconvenient and inaccurate detection of the internal space of the pressure vessel in the prior art is solved, and the accurate detection of the internal space of the pressure vessel is realized, ensuring the accuracy and safety of the detection.
Patent Information
- Application Number
- CN202422308467.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-23
AI Technical Summary
The internal space dimension detection of existing pressure vessels is inconvenient and cannot be accurately detected.
An internal dimension measuring device for pressure vessels including a three-jaw chuck, a measuring rod, a laser ranging sensor, a rotational drive mechanism and a rotational angle detection mechanism are designed. By extending the measuring rod into the container and clamping it on the flange interface, the measuring rod is driven by the rotation driving mechanism to drive the laser distance measuring sensor to detect the distance between the inner side wall of the container and the measuring rod, so as to achieve accurate detection of the internal space of the pressure vessel.
This device makes the detection of the internal space of the pressure vessel more convenient and accurate, avoiding the risk of the container being used in the out-of-circular state, and ensuring the accuracy and safety of the detection.
Smart Images
Figure CN223050623U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pressure vessel detection, and particularly relates to a device for measuring the internal dimensions of a pressure vessel. Background Art
[0002] A pressure vessel refers to a closed device that contains gas or liquid and bears a certain pressure. Pressure vessels are extremely widely used and play an important role in many departments such as industry, civil use, military, and many fields of scientific research.
[0003] When a pressure vessel is deformed, the internal space of the vessel is in an out-of-round state. When the internal space of the vessel is out-of-round, uneven stress will occur when it bears pressure, which may cause the vessel to rupture, resulting in leakage of stored substances and triggering safety accidents. Therefore, it is necessary to detect the dimensions of the pressure vessel to avoid using the vessel in an out-of-round state.
[0004] When measuring existing pressure vessels, it is carried out manually from the outside of the vessel. The detection operation is inconvenient, and the internal dimensions of the pressure vessel cannot be accurately detected. Content of the Utility Model
[0005] The utility model aims to solve the problems that the detection operation of the internal space dimensions of existing pressure vessels is inconvenient and the internal dimensions of the pressure vessels cannot be accurately detected, and provides a device for measuring the internal dimensions of a pressure vessel.
[0006] To solve the above technical problems, the utility model is realized through the following technical solutions: A device for measuring the internal dimensions of a pressure vessel includes a three-jaw chuck. A support plate is arranged on the right side of the three-jaw chuck, and the three-jaw chuck and the support plate are fixedly connected by three uniformly distributed connecting rods. A measuring rod penetrates through the center of the three-jaw chuck, and two laser distance sensors, one on the left and one on the right, are fixed at a position close to the left side of the measuring rod. The measuring rod is rotatably connected to the three-jaw chuck, and a fixing plate is arranged between the three-jaw chuck and the support plate. The lower side of the fixing plate is fixedly connected to the two lower connecting rods. A rotation angle detection mechanism for detecting the rotation angle of the measuring rod is fixed on the upper surface of the fixing plate close to the rear side, and a rotation driving mechanism for driving the measuring rod to rotate is fixed on the upper surface of the fixing plate close to the front side.
[0007] As a preferred solution, the rotation angle detection mechanism includes a first support seat fixed on the fixing plate. A first fixed column is installed on the first support seat, and one end of the first fixed column is fixed with a first connecting plate. An encoder is fixed at a position close to the measuring rod on the left side of the first connecting plate, and the input shaft of the encoder passes through the first connecting plate and is fixed with a first counting wheel, and the first counting wheel is pressed against the measuring rod.
[0008] As a preferred solution, the rotation driving mechanism includes a second support base fixed on the fixed plate. A second fixing column is installed on the second support base, and one end of the second fixing column is fixed with a second connecting plate. A stepping motor is fixed at a position on the left side of the second connecting plate close to the measuring rod, and the output shaft of the stepping motor passes through the second connecting plate and is fixed with a second length measuring wheel, which is pressed against the measuring rod.
[0009] As a preferred solution, a first threaded head is fixed at the left end of the connecting rod, and a retaining ring is fixed at a position close to the left end of the connecting rod. A second threaded head penetrating through the support plate is fixed at the right end of the connecting rod, and adjusting nuts are sleeved on both the left and right sides of the support plate where the second threaded head is located.
[0010] As a preferred solution, a plurality of threaded holes are provided on one side of the three-jaw chuck facing the connecting rod, and a bearing is installed in the central hole of the three-jaw chuck.
[0011] As a preferred solution, a plurality of through holes are provided on the surface of the support plate close to the edge, and a connecting sleeve is fixed at the center of the left side surface of the support plate.
[0012] As a preferred solution, a pressing piece for pressing and fixing the connecting rod is fixed on the lower surface of the fixed plate, and mounting edges are fixed at both ends of the pressing piece, and the mounting edges are fixed on the fixed plate by screws.
[0013] As a preferred solution, an installation groove for installing the laser distance sensor is provided on the upper surface of the measuring rod, and clamping ribs are fixed on both sides close to the left and right in the installation groove, and clamping grooves are provided on both the left and right sides of the laser distance sensor.
[0014] Compared with the prior art, the beneficial effects of the present utility model are:
[0015] When measuring the internal space of a pressure vessel, the measuring rod is extended into the inside of the vessel and clamped on the flange interface of the vessel by the three-jaw chuck. At this time, the rotation driving mechanism is used to drive the measuring rod to rotate, and the rotating measuring rod drives the laser distance sensor to rotate so as to detect the distance between the inner wall of the pressure vessel and the measuring rod, thereby realizing the detection of the internal space of the pressure vessel. The detection operation is more convenient, and the internal dimensions of the pressure vessel can be accurately detected. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a perspective view of the present utility model;
[0017] Figure 2 is a schematic diagram of the rotation angle detection mechanism of the present utility model;
[0018] Figure 3 is a schematic diagram of the rotation driving mechanism of the present utility model;
[0019] Figure 4It is a schematic diagram of the connecting rod of the present utility model;
[0020] Figure 5 It is a schematic diagram of the three-jaw chuck of the present utility model;
[0021] Figure 6 It is a schematic diagram of the support plate of the present utility model;
[0022] Figure 7 It is a schematic diagram of the pressing piece of the present utility model;
[0023] Figure 8 It is a schematic diagram of the measuring rod of the present utility model.
[0024] In the figure: 1, measuring rod; 11, installation groove; 12, clamping rib; 2, three-jaw chuck; 21, bearing; 22, threaded hole; 3, rotation angle detection mechanism; 31, first fixed column; 32, first support seat; 33, connecting plate; 34, first counting wheel; 35, encoder; 4, connecting rod; 41, first threaded head; 42, adjusting nut; 43, second threaded head; 44, retaining ring; 5, support plate; 51, through hole; 52, connecting sleeve; 6, rotation driving mechanism; 61, stepping motor; 62, second counting wheel; 63, second connecting plate; 64, second support seat; 65, second fixed column; 7, fixing plate; 8, laser distance sensor; 81, clamping groove; 9, pressing piece; 91, installation edge; 92, screw. Specific embodiments
[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way limits the present utility model and its application or use. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.
[0026] It should be noted that the terms used here are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used here, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0027] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present utility model. At the same time, it should be understood that for the sake of convenience in description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.
[0028] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom", etc., are usually based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Without contrary instructions, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus cannot be construed as limiting the protection scope of the present utility model; the orientation words "inner, outer" refer to the inside and outside relative to the contour of each component itself.
[0029] For the convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above", etc., can be used here to describe the spatial positional relationships of a device or feature shown in the drawings with other devices or features. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the drawings. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used here.
[0030] In addition, it should be noted that the use of words such as "first", "second", etc. to limit components is only for the convenience of differentiating the corresponding components. Without otherwise stating, the above words have no special meanings, and thus cannot be construed as limiting the protection scope of the present utility model.
[0031] AsFigure 1 As shown in the figure, a measuring device for the internal dimensions of a pressure vessel includes a three-jaw chuck 2. A support plate 5 is arranged on the right side of the three-jaw chuck 2, and the three-jaw chuck 2 and the support plate 5 are fixedly connected by three uniformly distributed connecting rods 4. A measuring rod 1 penetrates through the center of the three-jaw chuck 2, and two laser distance sensors 8 are fixed on the left and right near the left side of the measuring rod 1. The measuring rod 1 is rotatably connected to the three-jaw chuck 2, and a fixing plate 7 is arranged between the three-jaw chuck 2 and the support plate 5. The lower side of the fixing plate 7 is fixedly connected to the two lower connecting rods 4. A rotation angle detection mechanism 3 for detecting the rotation angle of the measuring rod 1 is fixed on the upper surface of the fixing plate 7 near the rear side, and a rotation driving mechanism 6 for driving the measuring rod 1 to rotate is fixed on the upper surface of the fixing plate 7 near the front side. When measuring the internal space of the pressure vessel, the measuring rod 1 is extended into the inner side of the vessel and clamped on the flange interface of the vessel by the three-jaw chuck 2. At this time, the rotation driving mechanism 6 drives the measuring rod 1 to rotate, and the rotating measuring rod 1 drives the laser distance sensors 8 to rotate, so as to detect the distance between the inner wall of the pressure vessel and the measuring rod 1, thereby realizing the detection of the internal space of the pressure vessel. The detection operation is more convenient, and the internal dimensions of the pressure vessel can be accurately detected.
[0032] As Figure 2 shown in the figure, the rotation angle detection mechanism 3 includes a first support seat 32 fixed on the fixing plate 7. A first fixed column 31 is installed on the first support seat 32, and the first support seat 32 fixedly supports the first fixed column 31. One end of the first fixed column 31 is fixed with a first connecting plate 33. An encoder 35 is fixed at a position on the left side of the first connecting plate 33 near the measuring rod 1, and the first connecting plate 33 fixedly supports the encoder 35. The input shaft of the encoder 35 passes through the first connecting plate 33 and is fixed with a first meter wheel 34, and the first meter wheel 34 is pressed against the measuring rod 1. When the measuring rod 1 rotates, the measuring rod 1 drives the first meter wheel 34 to rotate through friction, and the encoder 35 detects the rotation angle of the first meter wheel 34 in real time.
[0033] As Figure 3 shown in the figure, the rotation driving mechanism 6 includes a second support seat 64 fixed on the fixing plate 7. A second fixed column 65 is installed on the second support seat 64, and one end of the second fixed column 65 is fixed with a second connecting plate 63. The second support seat 64 installs the second fixed column 65. A stepping motor 61 is fixed at a position on the left side of the second connecting plate 63 near the measuring rod 1, and the second connecting plate 63 fixedly supports the stepping motor 61. The output shaft of the stepping motor 61 passes through the second connecting plate 63 and is fixed with a second meter wheel 62, and the second meter wheel 62 is pressed against the measuring rod 1. The stepping motor 61 drives the second meter wheel 62 to rotate, and the second meter wheel 62 drives the measuring rod 1 to rotate during measurement through friction.
[0034] As shown Figure 4 in Figure Figure 4 , a first threaded head 41 is fixed to the left end of the connecting rod 4, and a retaining ring 44 is fixed to the connecting rod 4 near the left end. The connecting rod 4 is fixed to the three-jaw chuck 2 through the first threaded head 41, and the screwing and positioning of the connecting rod 4 during installation is carried out through the retaining ring 44. A second threaded head 43 penetrating the support plate 5 is fixed to the right end of the connecting rod 4, and adjusting nuts 42 are sleeved on both the left and right sides of the support plate 5 where the second threaded head 43 is located. The second threaded head 43 passes through the support plate 5, and the second threaded head 43 and the support plate 5 are locked and fixed through the adjusting nuts 42 on both sides.
[0035] As shown Figure 5 in Figure Figure 5 , a plurality of threaded holes 22 are provided on the side of the three-jaw chuck 2 facing the connecting rod 4. The three-jaw chuck 2 is used for threadedly fixing the first threaded head 41 at the left end of the connecting rod 4 through the threaded holes 22, and a bearing 21 is installed in the central hole of the three-jaw chuck 2 for rotatably installing the measuring rod 1.
[0036] As shown Figure 6 in Figure Figure 6 , a plurality of through holes 51 are provided on the surface of the support plate 5 near the edge for inserting the second threaded head 43 on the connecting rod 4, and a connecting sleeve 52 is fixed to the center of the left side surface of the support plate 5. The connecting sleeve 52 is used for inserting and supporting the right end of the measuring rod 1.
[0037] As shown Figure 7 in Figure Figure 7 , a pressing piece 9 for pressing and fixing the connecting rod 4 is fixed to the lower surface of the fixing plate 7, and mounting edges 91 are fixed to both ends of the pressing piece 9. The mounting edges 91 are fixed to the fixing plate 7 through screws 92. The pressing piece 9 presses on the connecting rod 4, and then the screws 92 are passed through the mounting edges 91 and screwed and locked on the fixing plate 7, so that the pressing piece 9 presses the connecting rod 4 to fix it.
[0038] As shown Figure 8 in Figure Figure 8 , a mounting groove 11 for installing the laser distance sensor 8 is provided on the upper surface of the measuring rod 1 for positioning and installing the laser distance sensor 8, and clamping ribs 12 are fixed near both the left and right sides in the mounting groove 11. Card slots 81 are provided on both the left and right sides of the laser distance sensor 8. When the laser distance sensor 8 is clamped in the mounting groove 11, it is clamped in the card slots 81 through the clamping ribs 12 to tightly fix the laser distance sensor 8 after installation.
[0039] In this embodiment, when measuring the internal space of a pressure vessel, the measuring rod 1 is inserted into the inner side of the vessel from the flange interface of the pressure vessel, and then the three-jaw chuck 2 is clamped on the flange interface of the vessel. At this time, the second length measuring wheel 62 is driven to rotate by the stepping motor 61. The second length measuring wheel 62 drives the rotation of the measuring rod 1 during measurement through friction. The rotating measuring rod 1 drives the laser distance sensor 8 to rotate, so as to detect the distance between the inner wall of the pressure vessel and the measuring rod 1, and thus detect the internal space of the pressure vessel. During the detection, the measuring rod 1 drives the first length measuring wheel 34 to rotate through friction, and the encoder 35 detects the rotation angle of the first length measuring wheel 34 in real time to obtain the rotation angle of the measuring rod 1, so as to be able to control the measuring rod 1 to rotate one circle to comprehensively detect the inner wall of the pressure vessel on the entire circumferential surface.
[0040] The above is the preferred embodiment of the present invention. Those skilled in the art to which the present invention pertains can also make changes and modifications to the above embodiment. Therefore, the present invention is not limited to the above specific embodiments. Any obvious improvement, replacement or variation made by those skilled in the art on the basis of the present invention belongs to the protection scope of the present invention.
Claims
1. A device for measuring the internal dimensions of a pressure vessel, comprising a three-jaw chuck (2), characterized in that: A support plate (5) is provided on the right side of the three-jaw chuck (2), and the three-jaw chuck (2) and the support plate (5) are fixedly connected by three evenly distributed connecting rods (4); a measuring rod (1) is inserted through the center of the three-jaw chuck (2), and two left and right laser distance measuring sensors (8) are fixed near the left side of the measuring rod (1); the measuring rod (1) is rotatably connected to the three-jaw chuck (2), and a fixing plate (7) is provided between the three-jaw chuck (2) and the support plate (5), and the lower side of the fixing plate (7) is fixedly connected to the two connecting rods (4) on the lower side; a rotation angle detection mechanism (3) for detecting the rotation angle of the measuring rod (1) is fixed near the rear side of the upper surface of the fixing plate (7), and a rotation drive mechanism (6) for driving the measuring rod (1) to rotate is fixed near the front side of the upper surface of the fixing plate (7).
2. A pressure vessel internal dimension measuring device according to claim 1, characterized in that: The rotation angle detection mechanism (3) comprises a first support seat (32) fixed on a fixing plate (7), a first fixing column (31) being mounted on the first support seat (32), a first connecting plate (33) being fixed at one end of the first fixing column (31), an encoder (35) being fixed at a position close to the measuring rod (1) on the left side of the first connecting plate (33), and a first meter wheel (34) being fixed on an input shaft of the encoder (35) passing through the first connecting plate (33), and the first meter wheel (34) being pressed tightly against the measuring rod (1).
3. A pressure vessel internal dimension measuring device according to claim 2, characterized in that: The rotation drive mechanism (6) comprises a second support seat (64) fixed on the fixing plate (7), a second fixing column (65) being mounted on the second support seat (64), a second connecting plate (63) being fixed at one end of the second fixing column (65), a stepping motor (61) being fixed at a position close to the measuring rod (1) on the left side of the second connecting plate (63), and a second meter wheel (62) being fixed on the output shaft of the stepping motor (61) passing through the second connecting plate (63), and the second meter wheel (62) being pressed tightly against the measuring rod (1).
4. A pressure vessel internal dimension measuring device according to claim 3, characterized in that: A first threaded head (41) is fixed to the left end of the connecting rod (4), and a retaining ring (44) is fixed near the left end of the connecting rod (4); a second threaded head (43) penetrating the support plate (5) is fixed to the right end of the connecting rod (4), and the second threaded head (43) is located on both left and right sides of the support plate (5) and is fitted with adjusting nuts (42).
5. A pressure vessel internal dimension measuring device according to claim 4, characterized in that: A plurality of threaded holes (22) are provided on a side of the three-jaw chuck (2) facing the connecting rod (4), and a bearing (21) is installed in the center hole of the three-jaw chuck (2).
6. A pressure vessel internal dimension measuring device according to claim 5, characterized in that: A plurality of through holes (51) are provided on the surface of the support plate (5) near the edge, and a connecting sleeve (52) is fixed at the center of the left side surface of the support plate (5).
7. A pressure vessel internal dimension measuring device according to claim 6, characterized in that: A pressing plate (9) for pressing and fixing the connecting rod (4) is fixed on the lower surface of the fixing plate (7), and mounting edges (91) are fixed at both ends of the pressing plate (9), and the mounting edges (91) are fixed to the fixing plate (7) by screws (92).
8. A pressure vessel internal dimension measuring device according to claim 7, characterized in that: The upper surface of the measuring rod (1) is provided with a mounting groove (11) for mounting the laser distance measuring sensor (8), and clamping ribs (12) are fixed in the mounting groove (11) near the left and right sides, and the left and right sides of the laser distance measuring sensor (8) are provided with clamping grooves (81).