Displacement joint testing tool for centrifugal machine

Abstract

The utility model discloses a centrifugal machine displacement joint testing tool, which relates to the technical field of joint testing and comprises a measuring assembly, a clamping assembly and a micrometer. The measuring assembly comprises a fixed platform and a displacement probe; the micrometer is fixed on the fixed platform; the clamping assembly is used for clamping a displacement probe; the clamping assembly comprises a fixing ring, an air cylinder and a clamping plate. The fixing ring is in the shape of a vertically-through cylinder. The fixed ring is fixed on the micrometer; by adopting the micrometer, the universal meter and the preposition device, the displacement probe can be detected, the accuracy of the displacement probe in use can be detected, the measurement accuracy of the displacement probe can be verified before installation, the authenticity of unit detection data is ensured, the detection process is simple, the displacement probe is effectively prevented from being damaged in use, and the working efficiency is improved. And the device also needs to be dismounted for detection.

Description

Technical Field

[0001] The utility model relates to the technical field of joint testing, in particular to a centrifuge displacement joint testing tool. Background Art

[0002] The displacement probe is a sensor used to detect the displacement of an object. It can measure the change of the position of the target object over time. It is widely used in mechanical processing, manufacturing, automotive industry, instrument measurement and other fields, and is an important tool for scientific measurement.

[0003] Newly purchased displacement probes are installed at the unit position, and after the probes are installed, the unit is started for testing. If the displacement data does not meet the unit design specifications, the unit needs to be shut down, the probes need to be replaced, and then tested again. The rectification and testing process has problems such as complex procedures, low control, and high consumption of manpower and material resources.

[0004] It is not possible to pre-test the displacement probe spare parts, so there is uncertainty in the response time when using them. Utility Model Content

[0005] The embodiment of the present application provides a centrifuge displacement joint testing tool, which solves the problem in the prior art that the displacement probe spare parts cannot be pre-tested and inspected, and the response time is uncertain during use. The displacement probe is tested by using a micrometer, a multimeter and a preamplifier to test its accuracy during use. The measurement accuracy of the displacement probe can be verified before installation to ensure the authenticity of the unit test data. The test process is simple and effectively prevents the displacement probe from being damaged during use, and the need to disassemble it for testing is required.

[0006] The embodiment of the present application provides a centrifuge displacement joint testing tool, including a measuring component, a clamping component and a micrometer;

[0007] The measuring assembly includes a fixed platform and a displacement probe;

[0008] The micrometer is fixed on a fixed platform;

[0009] The clamping assembly is used to clamp the displacement probe;

[0010] The clamping assembly includes a fixing ring, a cylinder and a clamping plate;

[0011] The fixing ring is a cylindrical shape that penetrates from top to bottom;

[0012] The fixing ring is fixed on the micrometer;

[0013] There are two cylinders and two clamps, and they correspond to each other. The two cylinders are symmetrically fixed on the upper and lower sides of the fixing ring. The clamp is arc-shaped and fixed on the output end of the cylinder.

[0014] The displacement probe is placed between two clamping plates.

[0015] As an improvement, the axis of the fixing ring is parallel to the ground;

[0016] The axis of the clamping plate is parallel to the axis of the fixing ring.

[0017] As an improvement, one end of the micrometer micrometer screw is facing the fixed ring;

[0018] The micrometer screw of the micrometer can abut against one end of the displacement probe;

[0019] The measuring assembly also includes a multimeter, a proximitor and a displacement probe;

[0020] The multimeter and the proximitor are detachably arranged on a fixed platform;

[0021] The output port of the proximitor is connected to the measuring port of the multimeter via a connecting line;

[0022] The output port of the proximitor is connected to the input port of the displacement probe via a connecting line;

[0023] The power output port of the preamplifier is connected to the V power supply.

[0024] As an improvement, the clamping assembly further comprises a barrier film;

[0025] The barrier film is in an initial state in the shape of a truncated cone that penetrates from top to bottom;

[0026] One end of the barrier film is fixed to a side of the clamping plate away from the micrometer micrometer screw, and one end of the barrier film away from the clamping plate is fixed to the inner wall of the fixing ring, and the barrier film is located at an opening of one end of the fixing ring away from the micrometer micrometer screw;

[0027] The barrier film is made of rubber.

[0028] As an improvement, the axis of the barrier film and the axis of the fixing ring are on the same straight line;

[0029] The end of the barrier film with a small inner diameter faces the micrometer screw.

[0030] As an improvement, the clamping assembly further comprises a clamping film and a magnet;

[0031] There are two clamping membranes, and each clamping membrane is in a rectangular parallelepiped shape;

[0032] The upper end of the clamping film is fixed to the two sides of the upper clamping plate in the fixing ring, and the lower end of the clamping film is fixed to the two sides of the lower clamping plate in the fixing ring;

[0033] The clamping membrane is made of rubber;

[0034] There are multiple magnets, which are evenly spaced and fixed on one side of the clamping film away from the axis of the fixing ring;

[0035] The inner wall of the fixing ring fixes the electromagnet;

[0036] When the displacement probe needs to be placed between two clamping plates, the side of the electromagnet on the inner wall of the fixing ring close to the axis of the fixing ring is attracted to the side of the magnet far from the axis of the fixing ring.

[0037] As an improvement, the length direction of the clamping film is parallel to the axis of the fixing ring, the axis direction of the clamping plate is its length direction, and the length of the clamping film is consistent with the length of the clamping plate;

[0038] The length direction of the magnet is parallel to the axis of the fixing ring, and the length of the magnet is consistent with the length of the clamping film.

[0039] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0040] First, the displacement probe is tested by using a micrometer, a multimeter and a preamplifier to test its accuracy during use. The measurement accuracy of the displacement probe can be verified before installation to ensure the authenticity of the unit test data. The test process is simple and effectively prevents the displacement probe from being damaged during use, and it needs to be disassembled for testing.

[0041] Secondly, by adding a barrier film, it can guide the placement of the displacement probe, avoiding the risk of clamping failure or equipment damage caused by inaccurate insertion position. There is no need to observe the placement of the displacement probe all the time. The operator can insert the displacement probe to the correct position more quickly, thereby improving work efficiency. At the same time, the barrier film is made of rubber material, which can protect the displacement probe and effectively prevent it from hitting one end of the splint during placement, reducing the risk of equipment wear and damage, extending the service life of the equipment, and reducing maintenance costs. It reduces the risk of accidents caused by improper operation or equipment failure, which helps to protect the safety of operators and reduce potential risks in the production process;

[0042] Thirdly, the position of the displacement probe can be limited by the clamping film. After the displacement probe is placed, there is no need for multiple manual adjustments. The elastic force of the clamping film alone can make it located between the two clamping plates. At the same time, the repulsion between the magnet and the electromagnet in the fixing ring can improve the fixing and stabilizing effect of the displacement probe. The rubber clamping film can increase the friction force in contact with the displacement probe, and the clamping film can adapt to the irregular shape of the surface of the displacement probe, thereby providing a more uniform and stable clamping force, which helps to reduce the risk of sliding or falling off of the rod due to unstable clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 This is a front view of a centrifuge displacement joint testing tool of the utility model;

[0044] Figure 2 This is a left view of a clamping assembly of a centrifuge displacement joint testing tool of the utility model;

[0045] Figure 3 This is a front and sectional view of the barrier film installation of a centrifuge displacement joint testing tool of the utility model;

[0046] Figure 4 This is a schematic diagram of the installation of a clamping membrane of a centrifuge displacement joint testing tool of the utility model;

[0047] Figure 5 The utility model is a schematic diagram of the deformation of a clamping membrane of a centrifuge displacement joint testing tool.

[0048] In the figure: 100, measuring component; 110, fixed platform; 120, multimeter; 130, preamplifier; 140, displacement probe;

[0049] 200, clamping assembly; 210, fixing ring; 220, cylinder; 230, clamping plate; 240, blocking film; 250, clamping film; 260, magnet;

[0050] 300. Micrometer. DETAILED DESCRIPTION

[0051] To facilitate the understanding of the present invention, the present application will be described more comprehensively below with reference to the relevant drawings; the drawings show preferred embodiments of the present invention, but the present invention 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 enable a more thorough and comprehensive understanding of the disclosed content of the present invention.

[0052] It should be noted that the terms “vertical”, “horizontal”, “up”, “down”, “left”, “right” and similar expressions used in this document are only for illustrative purposes and do not represent the only implementation method.

[0053] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention; the terms used in the specification of the present invention are only for the purpose of describing specific implementation methods and are not intended to limit the present invention; the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0054] The preamplifier 130 is connected to the multimeter 120, and the preamplifier 130 is connected to a power supply, and the displacement probe 140 to be tested is selected. The displacement probe 140 is clamped by the cylinder 220 and the clamp 230, and the displacement probe 140 is connected to the preamplifier 130. When the displacement probe 140 is tested, when the micrometer screw of the micrometer 300 abuts against the displacement probe 140, the data measured by the micrometer 300 is 0. Then, the micrometer 300 is operated to make the data measured by the micrometer 300 0.1. The linearly changing voltage between the displacement probe 140 and the micrometer screw of the micrometer 300 is measured by the preamplifier 130, and the data is displayed by the multimeter 120. By calculating whether the data is 0.1, when the data is 0.1, the accuracy of the displacement probe 140 is accurate, and when the data is not 0.1, the accuracy of the displacement probe 140 is inaccurate.

[0055] Embodiment 1: Figure 1-Figure 2 As shown, the present application is a centrifuge displacement joint testing tool, comprising a measuring assembly 100, a clamping assembly 200 and a micrometer 300;

[0056] The measuring assembly 100 includes a fixed platform 110 and a displacement probe 140;

[0057] The micrometer 300 is fixed on the fixed platform 110;

[0058] The clamping assembly 200 is used to clamp the displacement probe 140;

[0059] The clamping assembly 200 includes a fixing ring 210, a cylinder 220 and a clamping plate 230;

[0060] The fixing ring 210 is a cylindrical body that penetrates from top to bottom, and the axis of the fixing ring 210 is parallel to the ground;

[0061] The fixing ring 210 is fixed on the micrometer 300;

[0062] There are two cylinders 220 and two clamps 230, respectively, and they correspond one to one. The two cylinders 220 are symmetrically fixed on the upper and lower sides of the fixing ring 210. The clamps 230 are arc-shaped, and the axis of the clamps 230 is parallel to the axis of the fixing ring 210. The clamps 230 are fixed at the output end of the cylinders 220.

[0063] The displacement probe 140 is placed between two clamping plates 230;

[0064] One end of the micrometer screw of the micrometer 300 faces the fixing ring 210;

[0065] The micrometer screw of the micrometer 300 may abut against one end of the displacement probe 140;

[0066] The measuring assembly 100 further includes a multimeter 120, a preamplifier 130 and a displacement probe 140;

[0067] The multimeter 120 and the proximitor 130 are detachably arranged on the fixed platform 110;

[0068] The output port of the preamplifier 130 is connected to the measurement port of the multimeter 120 via a connecting line;

[0069] The output port of the preamplifier 130 is connected to the input port of the displacement probe 140 via a connecting line;

[0070] The power output port of the preamplifier 130 is connected to a 24V power supply;

[0071] The multimeter 120 , the preamplifier 130 and the displacement probe 140 are prior art and will not be described in detail here.

[0072] When in use, the preamplifier 130 is connected to the multimeter 120, and the preamplifier 130 is connected to a power supply, and the displacement probe 140 to be tested is selected, and the displacement probe 140 is clamped by the cylinder 220 and the clamping plate 230. The displacement probe 140 is connected to the preamplifier 130. When the displacement probe 140 is tested, when the micrometer screw of the micrometer 300 abuts against the displacement probe 140, the data measured by the micrometer 300 is 0, and then the micrometer 300 is operated to make the data measured by the micrometer 300 0.1, the linearly changing voltage between the displacement probe 140 and the micrometer screw of the micrometer 300 is measured by the preamplifier 130, and the data is displayed by the multimeter 120, and the data is calculated to see if it is 0.1. When the data is 0.1, the accuracy of the displacement probe 140 is accurate, and when the data is not 0.1, the accuracy of the displacement probe 140 is inaccurate.

[0073] By using a micrometer 300, a multimeter 120 and a preamplifier 130, the displacement probe 140 is tested to test its accuracy when in use. The measurement accuracy of the displacement probe 140 can be verified before installation to ensure the authenticity of the unit's test data. The test process is simple and effectively prevents the displacement probe 140 from being damaged when in use, and it is also necessary to disassemble it for testing.

[0074] Embodiment 2: When the embodiment 1 is in use, the displacement probe 140 is clamped and fixed by the installed cylinder 220 and the clamping plate 230. However, during use, one end of the displacement probe 140 needs to pass through the two clamping plates 230. During the placement process, the operator needs to always keep an eye on one end of the displacement probe 140 until it passes through the two clamping plates 230. This takes a long time, which affects the detection efficiency of the displacement probe 140. Based on this, the solution of the embodiment 1 is improved, such as Figure 3 As shown:

[0075] The clamping assembly 200 further includes a barrier film 240;

[0076] The blocking film 240 is initially in a truncated cone shape that is through from top to bottom, and the axis of the blocking film 240 is on the same straight line as the axis of the fixing ring 210;

[0077] One end of the blocking film 240 is fixed to a side of the clamping plate 230 away from the micrometer screw 300, and one end of the blocking film 240 away from the clamping plate 230 is fixed to the inner wall of the fixing ring 210. The blocking film 240 is located at an opening of one end of the fixing ring 210 away from the micrometer screw 300.

[0078] The barrier film 240 is made of rubber;

[0079] The end of the barrier film 240 with a smaller inner diameter faces the micrometer screw of the micrometer 300 .

[0080] When in use, when one end of the displacement probe 140 passes through the gap between the two clamps 230, the upper and lower sides of the displacement probe 140 can come into contact with the upper and lower blocking films 240, slide along the blocking films 240 into between the two clamps 230, and then adjust the position and fix it by the cylinder 220 and the clamp 230.

[0081] By adding the blocking film 240, a guiding effect can be provided for the placement of the displacement probe 140, thereby avoiding the risk of clamping failure or equipment damage due to inaccurate insertion position. There is no need to observe the placement of the displacement probe 140 all the time, and the operator can insert the displacement probe 140 to the correct position more quickly, thereby improving work efficiency. At the same time, the blocking film 240 is made of rubber, which can protect the displacement probe 140 and effectively prevent it from hitting one end of the splint 230 during placement, thereby reducing the risk of equipment wear and damage, extending the service life of the equipment, and reducing maintenance costs, reducing the risk of accidents caused by improper operation or equipment failure, which helps to protect the safety of operators and reduce potential risks in the production process.

[0082] Embodiment 3: When the embodiment 2 is in use, the displacement probe 140 is clamped by the clamping plate 230 and guided and protected by the blocking film 240. In the process of placing the displacement probe 140, due to the gap between the two clamping plates 230, one end of the displacement probe 140 is prone to tilt when the displacement probe 140 is placed, and multiple adjustments are required to place it between the two clamping plates 230. Based on this, the solution of the embodiment 2 is improved, such as Figure 4-Figure 5 As shown:

[0083] The clamping assembly 200 further includes a clamping film 250 and a magnet 260;

[0084] There are two clamping films 250, each of which is in a rectangular shape. The length direction of the clamping film 250 is parallel to the axis of the fixing ring 210, and the axis direction of the clamping plate 230 is its length direction. The length of the clamping film 250 is consistent with the length of the clamping plate 230;

[0085] The upper end of the clamping film 250 is fixed to the two sides of the upper clamping plate 230 in the fixing ring 210, and the lower end of the clamping film 250 is fixed to the two sides of the lower clamping plate 230 in the fixing ring 210;

[0086] The clamping film 250 is made of rubber;

[0087] The length direction of the magnet 260 is parallel to the axis of the fixing ring 210 , and the length of the magnet 260 is consistent with the length of the clamping film 250 ;

[0088] There are multiple magnets 260, which are evenly spaced and fixed on one side of the clamping film 250 away from the axis of the fixing ring 210;

[0089] The inner wall of the fixing ring 210 fixes the electromagnet;

[0090] When the displacement probe 140 needs to be placed between the two clamping plates 230 , the side of the electromagnet on the inner wall of the fixing ring 210 close to the axis of the fixing ring 210 and the side of the magnet 260 away from the axis of the fixing ring 210 attract each other.

[0091] When in use, when the displacement probe 140 is placed, the electromagnet inside the fixing ring 210 attracts the magnet 260, so that the magnet 260 drives the clamping film 250 to deform. When the displacement probe 140 enters between the two clamping plates 230 and the two clamping films 250, the electromagnet inside the fixing ring 210 repels the magnet 260, so that the magnet 260 drives the clamping film 250 to deform. The position of the displacement probe 140 is adjusted so that it is located between the two clamping plates 230, and then the clamping plates 230 are driven by the cylinder 220 to be fixed.

[0092] The position of the displacement probe 140 can be limited by the clamping film 250. After the displacement probe 140 is placed, there is no need for multiple manual adjustments. The elastic force of the clamping film 250 alone can make it located between the two clamping plates 230. At the same time, the repulsion between the magnet 260 and the electromagnet in the fixing ring 210 can improve the fixing and stabilizing effect of the displacement probe 140. The clamping film 250 made of rubber can increase the friction force in contact with the displacement probe 140. The clamping film 250 can adapt to the irregular shape of the surface of the displacement probe 140, thereby providing a more uniform and stable clamping force, which helps to reduce the risk of sliding or falling off of the rod due to unstable clamping.

[0093] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A centrifuge displacement joint testing tool, comprising a measuring component (100), a clamping component (200) and a micrometer (300); The measuring assembly (100) comprises a fixed platform (110) and a displacement probe (140); The micrometer (300) is fixed on a fixed platform (110); The clamping assembly (200) is used to clamp the displacement probe (140); It is characterized in that The clamping assembly (200) comprises a fixing ring (210), a cylinder (220) and a clamping plate (230); The fixing ring (210) is in the shape of a cylinder that penetrates from top to bottom; The fixing ring (210) is fixed on the micrometer (300); There are two cylinders (220) and two clamping plates (230) in one-to-one correspondence. The two cylinders (220) are symmetrically fixed on the upper and lower sides of the fixing ring (210). The clamping plates (230) are arc-shaped and are fixed on the output ends of the cylinders (220). The displacement probe (140) is placed between two clamping plates (230).

2. A centrifuge displacement joint testing tool as claimed in claim 1, characterized in that: The axis of the fixing ring (210) is parallel to the ground; The axis of the clamping plate (230) is parallel to the axis of the fixing ring (210).

3. A centrifuge displacement joint testing tool as claimed in claim 1, characterized in that: One end of the micrometer screw of the micrometer (300) faces the fixing ring (210); The micrometer screw of the micrometer (300) can abut against one end of the displacement probe (140); The measuring component (100) further comprises a multimeter (120), a preamplifier (130) and a displacement probe (140); The multimeter (120) and the preamplifier (130) are detachably arranged on the fixed platform (110); The output port of the preamplifier (130) is connected to the measurement port of the multimeter (120) via a connecting line; The output port of the preamplifier (130) is connected to the input port of the displacement probe (140) via a connecting line; The power output port of the preamplifier (130) is connected to a 24V power supply.

4. A centrifuge displacement joint testing tool as claimed in claim 1, characterized in that: The clamping assembly (200) further comprises a barrier film (240); The barrier film (240) is in an initial state in the shape of a truncated cone that penetrates from top to bottom; One end of the blocking film (240) is fixed to a side of the clamping plate (230) away from the micrometer screw of the micrometer (300), and one end of the blocking film (240) away from the clamping plate (230) is fixed to the inner wall of the fixing ring (210), and the blocking film (240) is located at an opening of one end of the fixing ring (210) away from the micrometer screw of the micrometer (300); The barrier film (240) is made of rubber.

5. A centrifuge displacement joint testing tool as claimed in claim 4, characterized in that: The axis of the barrier film (240) and the axis of the fixing ring (210) are on the same straight line; The end of the barrier film (240) with a small inner diameter faces the micrometer screw of the micrometer (300).

6. A centrifuge displacement joint testing tool as claimed in claim 4, characterized in that: The clamping assembly (200) further comprises a clamping film (250) and a magnet (260); There are two clamping films (250), and the clamping films (250) are in the shape of a rectangular parallelepiped; The upper end of the clamping film (250) is fixed to two sides of an upper clamping plate (230) located inside the fixing ring (210), and the lower end of the clamping film (250) is fixed to two sides of a lower clamping plate (230) located inside the fixing ring (210); The clamping film (250) is made of rubber; There are a plurality of magnets (260) which are evenly spaced and fixed on a side of the clamping film (250) away from the axis of the fixing ring (210); The inner wall of the fixing ring (210) fixes the electromagnet; When the displacement probe (140) needs to be placed between two clamping plates (230), the side of the electromagnet on the inner wall of the fixing ring (210) close to the axis of the fixing ring (210) attracts the side of the magnet (260) away from the axis of the fixing ring (210).

7. A centrifuge displacement joint testing tool as claimed in claim 6, characterized in that: The length direction of the clamping film (250) is parallel to the axis of the fixing ring (210), the axis direction of the clamping plate (230) is its length direction, and the length of the clamping film (250) is consistent with the length of the clamping plate (230); The length direction of the magnet (260) is parallel to the axis of the fixing ring (210), and the length of the magnet (260) is consistent with the length of the clamping film (250).

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