A cylindrical elastomeric inlay assist device and method of inlaying

Abstract

The application discloses a kind of cylindrical elastomer inner patch auxiliary device and patching method, cylindrical elastomer inner patch auxiliary device, including positioning support part and patching operation part, wherein: positioning support part is used to same position cooperation with the cylindrical elastomer to be patched, and patching operation part is installed on positioning support part, for carrying out inner patching operation to the cylindrical elastomer to be patched.The present application can control sensor cylindrical elastomer inner patching position, angle, reduce patching error, effectively realize the accurate control of inner patching;It is stable, pressure is uniform, guaranteeing that stress strain patch is pasted quality;It is easy to operate, effectively solve the difficult problem that cylindrical elastomer inner patching space is small, not easy to operate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of the resistance strain sensor cylinder elastic body in the form of an inner patch, and in particular to an inner patch auxiliary device for a cylinder elastic body and a patching method. BACKGROUND

[0002] The resistance strain force sensor is based on the principle of resistance strain effect, and is made of metal resistance wire into a resistance strain gauge, which is pasted on an elastic body. When the elastic body is deformed under force, the sensitive grid of the strain gauge is also deformed, and the resistance value changes accordingly. Through a conversion circuit, the change is converted into a change in voltage or current.

[0003] The elastic body is an elastic element with a special structure, which can bear the force of the measured load and convert the force into its own elastic deformation. Commonly used elastic body shapes include cylindrical, S-shaped, pin shaft type, and cylindrical. Compared with other structure types, the cylindrical structure has the following advantages: the stress strain gauge is pasted on the inner wall of the cylinder, the elastic body directly serves as the sensor shell, and there is no need to set an outer shell to protect the electronic elements; the circuit board and power supply are placed inside the cylinder, making full use of the internal space of the sensor and minimizing the outer diameter of the sensor to meet the requirements of the cable car wheel groove and the traction drum rope groove.

[0004] The patching position deviation will have a greater impact on the output of the sensor. When two strain gauges are symmetrically distributed at 180° around the center axis of the sensor, the indication error of the sensor is 0. However, when the position deviation increases, the indication error of the sensor increases rapidly. When the angle deviation of all strain gauges of the sensor is zero, the indication error of the sensor is 0. As the angle deviation increases, the indication error increases rapidly.

[0005] The resistance strain force sensor cylinder elastic body is less used, and the patching is usually in the form of external patching. Due to the small internal space of the cylindrical elastic body, internal patching operation is not easy to perform, and internal patching usually adopts a manual patching method. The manual patching method has poor patching position accuracy and uneven bonding pressure, which will directly affect the measurement accuracy of the sensor.

[0006] In order to effectively control the patching effect of the resistance strain gauge and reduce the position and angle error, an auxiliary device for internal patching of the cylindrical elastic body is needed to effectively realize accurate control of internal patching. SUMMARY

[0007] The present application provides an inner patch auxiliary device for a cylindrical elastic body and a patching method to solve the problems in the prior art.

[0008] To solve the above technical problems, the present application adopts the following technical solutions:

[0009] A kind of cylindrical elastomer inner patch auxiliary device, including positioning support part and patch operation part, wherein:

[0010] Positioning support part is used to position matching with the cylindrical elastomer to be patched, and patch operation part is installed on positioning support part, for inner patch operation to the cylindrical elastomer to be patched.

[0011] Preferably, the positioning support part includes a positioning ring and a cylindrical body, the cylindrical body is a cylindrical body with an open left end, the open end is coaxially detachably connected with the positioning ring, and the inner diameter of the cylindrical body and the positioning ring is tightly matched with the outer diameter of the cylindrical elastomer to be patched.

[0012] Preferably, the cylindrical body and the positioning ring are stopper matched, and the cylindrical body and the positioning ring are respectively provided with fastening screws for fixed connection with the cylindrical elastomer to be patched.

[0013] Preferably, the positioning ring has a rotation angle scale, and the open end of the cylindrical body is provided with a reference scale line.

[0014] Preferably, the patch operation part includes two oppositely arranged jacking platforms, the radial outer side of the jacking platform is a stress strain gauge placement, and the two jacking platforms are connected by a synchronous lifting control mechanism, and the synchronous lifting control mechanism is simultaneously extended and installed at the right end of the cylindrical body.

[0015] Preferably, the radial outer side of the jacking platform is fixedly provided with a gasket; the contact surface of the gasket and the jacking platform is a plane, and the surface for placing the stress strain gauge is a curved surface, and the curvature radius of the curved surface is the same as the curvature radius of the inner wall of the cylindrical elastomer.

[0016] Preferably, the curved surface of the gasket is provided with a longitudinal positioning line.

[0017] Preferably, the synchronous lifting control mechanism includes a hinged diamond frame and an adjusting rod, the right end point of the hinged diamond frame is fixedly connected with the right end of the cylindrical body through a horizontally extended cylindrical connecting rod;

[0018] The upper and lower end points of the hinged diamond frame symmetrically install the jacking platforms, the adjusting rod horizontally passes through the left and right end points of the hinged diamond frame, and the left end of the adjusting rod is provided with a screw thread and is threadedly connected with the left end of the hinged diamond frame; the right end of the adjusting rod passes through the cylindrical connecting rod and is rotationally connected with the cylindrical body through a bearing, and the right end of the adjusting rod is provided with a hand wheel.

[0019] Preferably, the radial inner side of the jacking platform is provided with two sets of meshing gears, and the two connecting rod ends of the upper end or the lower end of the hinged diamond frame are respectively connected with the corresponding meshing gears.

[0020] The application also discloses a cylindrical elastomer inner patching method based on the cylindrical elastomer inner patching auxiliary device, characterized by comprising the following steps:

[0021] (1) first positioning ring nested in the outer surface of the cylindrical elastomer, according to the depth of the patch to determine the longitudinal position, tighten the fastening screw fixed position;

[0022] (2) by synchronous lifting control mechanism jacking platform height, on the gasket plus temporary adhesive, and positioning placed stress strain gauge;

[0023] (3) the cylindrical elastomer nested into the cylindrical body, so that the port of the cylindrical body and the positioning ring fit, rotate the cylindrical elastomer, so that the zero point of the scale line on the positioning ring aligns with the reference scale line on the outer wall of the cylindrical body, tighten the fastening screw on the cylindrical body;

[0024] (4) by synchronous lifting control mechanism to lift the jacking platform, until the stress strain gauge is jacked to the inner wall of the cylindrical elastomer, and a certain torque is applied through the hand wheel to ensure the jacking pressure of the platform, completing the bonding of a group of stress strain gauges;

[0025] (5) after a group of stress strain gauges are firmly bonded, the jacking platform is lowered by the synchronous lifting control mechanism, the fastening screw on the cylindrical body is loosened, the cylindrical elastomer is pulled out, and the patching operation is repeated;

[0026] (6) nest the cylindrical elastomer into the cylindrical body again, rotate the cylindrical elastomer, so that the 90° scale line on the positioning ring aligns with the reference scale line on the outer wall of the cylindrical body, and tighten the fastening screw on the cylindrical body;

[0027] (7) repeat the jacking operation to complete the bonding of another group of stress strain gauges.

[0028] The beneficial effects of the present application are:

[0029] The present application can control the position and angle of the sensor cylindrical elastomer, reduce the patch error, and effectively realize the precise control of the inner patch.

[0030] The present application has stable jacking and uniform pressure, which ensures the quality of the stress strain gauge bonding.

[0031] The present application is simple to operate, and effectively solves the problem of small inner patch space of the cylindrical elastomer and difficult operation.

[0032] The patching method of the present application can accurately control the relative position of the four resistance strain gauges, so that the bonding position of the four resistance strain gauges on the inner wall of the elastomer is symmetrical along the central axis of the cylindrical body, and the deformation measurement directions of the four resistance strain gauges are parallel to the central axis. BRIEF DESCRIPTION OF DRAWINGS

[0033] Fig. 1 The device appearance of the present application is shown in the figure;

[0034] Fig. 2A device sectional view of the present application;

[0035] Fig. 3 A patch process sectional view of the present application.

[0036] The drawings are only for illustrative purposes and cannot be understood as limiting the patent; in order to better illustrate the embodiments, some components of the drawings may be omitted, enlarged or reduced, and do not represent the actual product size; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. DETAILED DESCRIPTION

[0037] The specific embodiments of the present application are described in detail below in conjunction with the drawings. It should be understood that the specific embodiments described herein are only for illustration and explanation of the present application and are not intended to limit the present application.

[0038] As Figs. 1 to 3 shown, the present application discloses a cylindrical elastic body inner patch auxiliary device, comprising a positioning support part and a patch operation part, wherein: the positioning support part is used for position matching with the cylindrical elastic body 1 to be patched, and the patch operation part is installed on the positioning support part and is used for inner patch operation on the cylindrical elastic body 1 to be patched.

[0039] Specifically, the positioning support part comprises a positioning ring 2 and a cylindrical main body 3, the cylindrical main body 3 is a cylinder with an open left end, the open end is coaxially detachably connected with the positioning ring 2, and the inner diameter of the cylindrical main body 3 and the positioning ring 2 is tightly matched with the outer diameter of the cylindrical elastic body 1 to be patched.

[0040] In this embodiment, the cylindrical main body 3 and the positioning ring 2 are stopper matched, and fastening screws 4 are respectively arranged on the cylindrical main body 3 and the positioning ring 2 for fixed connection with the cylindrical elastic body 1 to be patched.

[0041] In order to facilitate quantitative operation, the positioning ring 2 is provided with a rotation angle scale 21, and the open end of the cylindrical main body 3 is provided with a reference scale line.

[0042] Specifically, the patch operation part comprises two oppositely arranged jacking platforms 5, and the radial outer side surface of the jacking platform 5 is a stress strain gauge placement position. At the same time, in order to facilitate the placement of the stress strain gauge, the radial outer side surface of the jacking platform is fixedly provided with a polytetrafluoroethylene gasket 6. The contact surface of the polytetrafluoroethylene gasket 6 and the jacking platform 5 is a plane, the stress strain gauge placement surface is a curved surface, the curvature radius of the curved surface is the same as the curvature radius of the inner wall of the cylindrical elastic body 1, so as to ensure that the stress strain gauge is subjected to uniform pressure and firmly pasted during jacking.

[0043] The curved surface of the polytetrafluoroethylene gasket 6 is also provided with a longitudinal positioning line, so as to ensure that the stress strain gauge is placed in a position that is centrally symmetrical and the strain direction is parallel to the elastic body axial direction.

[0044] The two jacking platforms 5 are connected through a synchronous lifting control mechanism, and the synchronous lifting control mechanism is simultaneously extended and installed at the right end of the cylindrical main body 3.

[0045] In this embodiment, the synchronous lifting control mechanism comprises a hinged diamond frame 7 and an adjusting rod 8, the right end point of the hinged diamond frame 7 is connected with the right end of the cylindrical main body 3 through a horizontally extended cylindrical connecting rod 9, and is fixed through bolts.

[0046] The upper and lower end points of the hinged diamond frame 7 symmetrically install the jacking platforms 5, the adjusting rod 8 horizontally passes through the left and right end points of the hinged diamond frame 7, and the left end of the adjusting rod 8 is provided with a screw and is threadedly connected with the left end of the hinged diamond frame 7; the right end of the adjusting rod 8 passes through the cylindrical connecting rod 9 and is rotationally connected with the cylindrical main body 3 through a bearing 12, and the right side of the bearing 12 is provided with an end cover 11.

[0047] In order to facilitate operation, the right end of the adjusting rod 8 is provided with a hand wheel 10.

[0048] In this embodiment, the radial inner side of the jacking platform 5 is provided with two sets of meshing gears, and the two connecting rod ends at the upper end or the lower end of the hinged diamond frame 7 are respectively connected with the corresponding meshing gears, so as to ensure that the plane is parallel to the central axis of the cylindrical main body.

[0049] The application also discloses a cylindrical elastic body inner patching method based on the cylindrical elastic body inner patching auxiliary device, and comprises the following steps:

[0050] (1) first embed the positioning ring 2 in the outer surface of the cylindrical elastic body 1, determine the longitudinal position according to the patching depth, and tighten the fastening screw to fix the position;

[0051] (2) adjust the height of the jacking platform 5 through the synchronous lifting control mechanism, add temporary adhesive on the polytetrafluoroethylene gasket 6, and place the stress strain sheet according to the positioning mark to ensure the position accuracy;

[0052] (3) embed the cylindrical elastic body 1 into the cylindrical main body 3, make the port of the cylindrical main body 3 adhere to the positioning ring 2, rotate the cylindrical elastic body 1 to align the zero point of the scale line on the positioning ring 2 with the reference scale line on the outer wall of the cylindrical main body 3, and tighten the fastening screw on the cylindrical main body 3;

[0053] (4) rotate and lift the jacking platform 5 through the hand wheel 10 of the synchronous lifting control mechanism until the stress strain sheet is lifted to the inner wall of the cylindrical elastic body 1, and apply a certain torque through the hand wheel 10 to ensure the platform lifting pressure, and complete the bonding of a group of stress strain sheets;

[0054] (5) after a group of stress strain sheets are firmly bonded, reversely rotate and lower the jacking platform 5 through the hand wheel 10 of the synchronous lifting control mechanism, loosen the fastening screw on the cylindrical main body 3, pull out the cylindrical elastic body 1, and repeat the patching operation;

[0055] (6) nest the cylindrical elastic body 1 into the cylindrical body 3 again, rotate the cylindrical elastic body, align the scale line 90° on the positioning ring with the reference scale line on the outer wall of the cylindrical body 3, and tighten the fastening screw on the cylindrical body 3;

[0056] (7) repeat the jacking operation to complete the bonding of another group of stress strain gauges.

[0057] The patching method of the application can accurately control the relative positions of the four resistance strain gauges, so that the bonding positions of the four resistance strain gauges on the inner wall of the elastic body are symmetrical along the central axis of the cylinder and form an angle of 90° with each other; and the deformation measurement directions of the four resistance strain gauges are parallel to the central axis

[0058] The application can control the patching position and angle of the sensor cylindrical elastic body, reduce patching errors, and effectively realize accurate control of the inner patching; the jacking is stable and the pressure is uniform, which ensures the bonding quality of the stress strain gauges; and the operation is simple, which effectively solves the problem of small inner patching space of the cylindrical elastic body and difficult operation.

[0059] The above examples are only used to illustrate but not to limit the technical solutions of the application, although the application has been described in detail with reference to the above examples, those skilled in the art should understand that the application can still be modified or replaced equivalently without departing from the spirit and scope of the application, and any modification or partial replacement should be covered in the scope of the claims of the application.

[0060] If the terms "first", "second", etc. are used to limit the components in the text, those skilled in the art should know that the use of "first", "second" is only for the convenience of describing the application and simplifying the description, and the above terms have no special meaning unless otherwise stated.

[0061] In the description of the application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.

[0062] In the description of the application, it should be noted that unless specifically stated and limited otherwise, the terms "mounting", "connection", "connecting" should be understood broadly, for example, can be fixedly connected, can also be detachably connected, or integrally connected; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

Claims

1. A method for applying a cylindrical elastic inner patch, based on an auxiliary device for applying a cylindrical elastic inner patch, characterized in that: The cylindrical elastomer internal patch applicator includes a positioning and support section and a patch applicator section, wherein: The positioning support part is used to positionally mate with the cylindrical elastomer to be patched, and the patching operation part is mounted on the positioning support part for performing internal patching operation on the cylindrical elastomer to be patched. The positioning support part includes a positioning ring and a cylindrical body. The cylindrical body is a cylindrical shape with an open end on the left. The open end is coaxially and detachably connected to the positioning ring. The inner diameter of the cylindrical body and the positioning ring and the outer diameter of the cylindrical elastic body to be attached are tightly fitted. The cylindrical body and the positioning ring are fitted together at the stop, and fastening screws are provided on the cylindrical body and the positioning ring respectively for fixed connection with the cylindrical elastomer to be patched. The positioning ring has a rotation angle scale, and the open end of the cylindrical body is provided with a reference scale line; The patching operation section includes two opposing lifting platforms. The radial outer side of the lifting platform is the place where the stress strain gauge is placed. The two lifting platforms are connected by a synchronous lifting control mechanism, which is also extended and installed at the right end of the cylindrical body. A shim is fixedly provided on the radial outer side of the lifting platform; the contact surface between the shim and the lifting platform is a plane, and the surface on which the stress strain gauge is placed is a curved surface, the radius of curvature of the curved surface is the same as the radius of curvature of the inner wall of the cylindrical elastic body; The synchronous lifting control mechanism includes a hinged rhomboid frame and an adjusting rod. The right end of the hinged rhomboid frame is fixedly connected to the right end of the cylindrical body through a horizontally extending cylindrical connecting rod. The lifting platform is symmetrically installed at the upper and lower ends of the hinged diamond frame. The adjusting rod passes horizontally through the left and right ends of the hinged diamond frame. The left end of the adjusting rod is threaded and threaded to the left end of the hinged diamond frame. The right end of the adjusting rod passes through the cylindrical connecting rod and is rotatably connected to the cylindrical body through the bearing. The right end of the adjusting rod is equipped with a handwheel. The method for attaching a patch to a cylindrical elastomer includes the following steps: (1) First, nest the positioning ring on the outer surface of the cylindrical elastic body, determine the longitudinal position according to the patch depth, and tighten the fastening screws to fix the position; (2) Raise the platform height using the synchronous lifting control mechanism, add temporary adhesive to the shims, and position and place the stress strain gauges; (3) Insert the cylindrical elastomer into the cylindrical body so that the port of the cylindrical body fits with the positioning ring. Rotate the cylindrical elastomer so that the zero point of the scale line on the positioning ring is aligned with the reference scale line on the outer wall of the cylindrical body. Tighten the fastening screws on the cylindrical body. (4) Raise the lifting platform by means of synchronous lifting control mechanism until the stress strain gauge is lifted to the inner wall of the cylindrical elastic body, and apply a certain torque by handwheel to ensure the lifting pressure of the platform, and complete the bonding of a set of stress strain gauges; (5) After a set of stress strain gauges are firmly bonded, the lifting platform is lowered by the synchronous lifting control mechanism, the fastening screws on the cylindrical body are loosened, the cylindrical elastomer is pulled out, and the loading operation is repeated. (6) Insert the cylindrical elastic body back into the cylindrical body, rotate the cylindrical elastic body so that the scale line on the positioning ring is aligned with the reference scale line on the outer wall of the cylindrical body at 90°, and tighten the fastening screws on the cylindrical body. (7) Repeat the lifting operation to complete the bonding of another set of stress strain gauges.

2. The method for attaching a cylindrical elastomer body patch according to claim 1, characterized in that: The gasket has longitudinal positioning grooves on its curved surface.

3. The method for attaching a cylindrical elastomer body according to claim 1, characterized in that: The lifting platform is provided with two sets of meshing gears on its radial inner side, and the ends of the two connecting rods at the upper or lower end of the hinged rhomboid frame are respectively connected to the corresponding meshing gears.

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