Cylindrical floating joint tension sensor

Abstract

The utility model discloses a cylindrical floating joint tension sensor, and belongs to the technical field of tension sensors. The device mainly comprises a housing; the elastic piece is arranged in the housing, and a strain gauge is arranged in the elastic piece; the fixed end is connected with one end of the elastic piece; the stress end is arranged on the side, away from the fixed end, of the elastic piece, the stress end comprises a fixed shaft, and the fixed shaft is arranged on the elastic piece; the self-aligning ball bearing is rotationally connected to the fixed shaft; a clamping block is arranged on the outer side of the lantern ring, and the clamping block is connected with the lantern ring through a bolt. According to the cylinder type floating joint tension sensor, the self-aligning ball bearing and the three-wave-crest gasket are arranged, so that the sensor is symmetrical in stress, stable in signal and capable of being used in a severe environment, meanwhile, the strain gauge and the aviation plug are arranged, so that the sensor has the characteristic of quick response, and tension data can be monitored and fed back in real time.

Description

Technical Field

[0001] The present application relates to the technical field of tension sensors, and in particular to a cylindrical floating joint tension sensor. Background Art

[0002] A tension sensor is a device used to measure the force applied to an object. It is often used to detect the tension in a rope, cable, spring or other form of stretched object. These sensors can use different working principles, including resistance, capacitance, strain gauge or electromagnetic induction. When the object is subjected to force, the sensor generates a corresponding signal, which can be converted into digital or analog form and then used to monitor, control or record changes in tension.

[0003] For example, the utility model patent with publication number CN215218324U specifically discloses a new cylindrical anti-overload tension sensor. By setting two anti-overload slits, when the heat pipe tension exceeds the set value during measurement, the displacement generated will be greater than the normal working displacement, so that the strain of the sensor is kept within the elastic strain range, effectively protecting the sensor from plastic deformation; the first strain beam, the second strain beam and the middle strain beam form a three-beam structure, which effectively increases the torsional and bending resistance of the tension sensor.

[0004] In the above patent, the sensor is not easily damaged when it is subjected to over-range by providing an overload protection slit. However, when the device is connected to the object to be tested, if the test environment is relatively harsh, the force-bearing end is affected by external force during the test, which may cause deviation in the concentricity of the force-bearing end, thereby causing inconsistency in the test results. Even under the same test conditions, the test results at different times or different positions may be different. Therefore, it is necessary to provide a cylindrical floating joint tension sensor with automatic centering to solve the above problems.

[0005] It should be noted that the above information disclosed in this background technology section is only for understanding the background technology of the present application concept, and therefore, it may contain information that does not constitute the prior art. Summary of the invention

[0006] Based on the above problems existing in the prior art, the problem to be solved by the present application is: to provide a cylindrical floating joint tension sensor so as to achieve the effect that the concentricity of the sensor will not deviate when affected by external forces.

[0007] The technical solution adopted by the present application to solve its technical problems is: a cylindrical floating joint tension sensor, including a cover shell; an elastic member, which is arranged in the cover shell and has a strain gauge arranged in the elastic member; a fixed end, which is connected to one end of the elastic member; a force-bearing end, which is arranged on the side of the elastic member away from the fixed end, and the force-bearing end includes a fixed shaft, which is arranged on the elastic member; a self-aligning ball bearing, which is rotatably connected to the fixed shaft; and a ring, a clamping block is arranged on the outer side of the ring, and the clamping block and the ring are connected by bolts.

[0008] Furthermore, an installation cavity is provided on the inner side of the elastic member, a connecting column is provided in the installation cavity, and the strain gauge is provided on the connecting column.

[0009] Furthermore, a three-peak washer is arranged between the collar and the self-aligning ball bearing.

[0010] Furthermore, dustproof cotton is fixedly installed at the connection between the collar and the cover shell.

[0011] Furthermore, an aviation plug is provided on the cover, and the strain gauge is electrically connected to the aviation plug.

[0012] The beneficial effects of the present application are as follows: a cylindrical floating joint tension sensor provided by the present application, by setting a self-aligning ball bearing and a three-peak washer, makes the force of the sensor symmetrical, the signal stable, and can be used in harsh environments. At the same time, the setting of the strain gauge and the aviation plug makes the sensor have the characteristics of fast response, and can monitor and feedback the tension data in real time, thereby increasing the practicality of the sensor.

[0013] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings constituting part of the present application are used to provide a further understanding of the present application. The exemplary embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0015] Figure 1 It is an overall schematic diagram of a cylindrical floating joint tension sensor in this application;

[0016] Figure 2 for Figure 1 The side structure diagram of the sensor;

[0017] Figure 3 for Figure 2 Schematic diagram of the internal structure of the sensor;

[0018] Figure 4 for Figure 2Schematic diagram of the sensor disassembly;

[0019] Among them, the reference numerals in the figure are:

[0020] 1. Sensor; 11. Cover; 12. Aviation plug; 2. Fixed end; 21. Connecting plate; 22. Slot; 3. Force-bearing end; 31. Ring; 32. Connecting block; 4. Elastic part; 41. Mounting cavity; 42. Connecting column; 43. Strain gauge; 44. Fixed shaft; 5. Self-aligning ball bearing; 6. Three-peak washer; 7. Dust-proof cotton. DETAILED DESCRIPTION

[0021] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0022] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0023] like Figure 1-Figure 2 As shown, the present application provides a cylindrical floating joint tension sensor, including a sensor 1. The sensor 1 is arranged in a textile and chemical fiber processing plant, and is mainly used for detecting yarn tension in the spinning process.

[0024] The sensor 1 includes a housing 11, the interior of the housing 11 is hollow, and a fixed end 2 is provided on one side of the housing 11, the fixed end 2 includes a connecting plate 21, and a plurality of through slots 22 are provided on the connecting plate 21, and the slots 22 are used to be fixed with an external detection device to maintain the stability and accuracy of the sensor 1, and a force-bearing end 3 is provided on the side of the housing 11 away from the fixed end 2, and the force-bearing end 3 is used to hang the material to be tested;

[0025] like Figure 3-Figure 4 As shown, an elastic member 4 is arranged in the cover shell 11, one end of the elastic member 4 is connected to the fixed end 2, and the other end is connected to the force-bearing end 3. At the same time, an installation cavity 41 is arranged on the inner side of the elastic member 4, a connecting column 42 is arranged in the installation cavity 41, and a strain gauge 43 is arranged on the connecting column 42. The strain gauge 43 is attached to the inside of the installation cavity 41. When the elastic member 4 is subjected to force, a slight deformation will occur. At this time, the strain gauge 43 can sense the deformation and convert it into an electrical signal, thereby realizing the detection and measurement of tension.

[0026] like Figure 2-Figure 4As shown, a fixed shaft 44 is extended from the bottom of the elastic member 4, and a self-aligning ball bearing 5 is rotatably connected to the outer side of the fixed shaft 44. The self-aligning ball bearing 5 is used to adjust the direction of the force-bearing end 3 so that the force-bearing end 3 can adapt to forces at different angles. The self-aligning ball bearing 5 can rotate freely on the fixed shaft 44, so that it can effectively withstand forces from different directions and enable the sensor 1 to maintain a stable working state in various working environments;

[0027] At the same time, a collar 31 is fixedly installed on the outer side of the self-aligning ball bearing 5, and a clamping block 32 is arranged on the outer side of the collar 31. The clamping block 32 and the collar 31 are connected by bolts, and the gap between the clamping block 32 and the collar 31 can be adjusted by the bolts. When the tension of the yarn needs to be tested, the yarn is placed in the gap and then the bolts are tightened so that the yarn is clamped between the clamping block 32 and the collar 31 to achieve the fixation of the yarn.

[0028] A three-peak washer 6 is provided between the collar 31 and the self-aligning ball bearing 5. The three-peak washer 6 can play a role of filling and adjusting between the collar 31 and the self-aligning ball bearing 5, and the distance between the collar 31 and the self-aligning ball bearing 5 can be flexibly adjusted by adjusting the thickness of the three-peak washer 6, so as to meet different installation requirements and reduce the distance deviation easily caused by installation errors;

[0029] At the same time, dustproof cotton 7 is fixedly installed at the connection between the ring 31 and the cover shell 11. The dustproof cotton 7 is used to improve the protection level of the sensor 1 and prevent external environmental factors such as dust and water vapor from invading the bearings and other key components, thereby protecting the sensor 1 from damage or pollution.

[0030] An aviation plug 12 is provided on the cover 11, and the aviation plug 12 is electrically connected to the strain gauge 43. At the same time, a memory is provided on the aviation plug 12, and instructions can be sent to it through an external signal debugger to download the test information in the sensor 1, so that the staff can monitor the output data of the sensor 1 in real time.

[0031] When the test starts, the sensor 1 is first fixed through the connecting disk 21, and the yarn to be tested is fixed on the force-bearing end 3. The yarn is then pulled so that the fixed end 2 and the force-bearing end 3 move relative to each other under the action of the external force, thereby driving the elastic part 4 to undergo elastic deformation. At this time, the strain gauge 43 will transmit the strain of the elastic part 4 to the outside through the aviation plug 12, so that the staff can calculate the ultimate tension of the yarn based on the deformation value of the elastic part 4.

[0032] In summary, the device arranges the self-aligning ball bearing 5 and the three-peak washer 6 so that the force of the sensor 1 is symmetrical, the signal is stable, and it can be used in harsh environments. At the same time, the arrangement of the strain gauge 43 and the aviation plug 12 makes the sensor 1 have the characteristics of rapid response, and can monitor and feedback the tension data in real time, thereby increasing the practicality of the sensor 1.

[0033] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A cylindrical floating joint tension sensor, comprising: A housing (11); An elastic member (4), the elastic member (4) being arranged in the housing (11), and a strain gauge (43) being arranged in the elastic member (4); A fixed end (2), the fixed end (2) being connected to one end of the elastic member (4); A force-bearing end (3), the force-bearing end (3) being arranged on a side of the elastic member (4) away from the fixed end (2), characterized in that the force-bearing end (3) comprises: A fixed shaft (44), the fixed shaft (44) being arranged on the elastic member (4); A self-aligning ball bearing (5), the self-aligning ball bearing (5) being rotatably connected to the fixed shaft (44); A collar (31) is provided with a clamping block (32) on the outer side of the collar (31), and the clamping block (32) is connected to the collar (31) via bolts.

2. A cylindrical floating joint tension sensor according to claim 1, characterized in that: An installation cavity (41) is provided on the inner side of the elastic member (4), a connecting column (42) is provided in the installation cavity (41), and the strain gauge (43) is provided on the connecting column (42).

3. A cylindrical floating joint tension sensor according to claim 2, characterized in that: A three-peak washer (6) is provided between the collar (31) and the self-aligning ball bearing (5).

4. A cylindrical floating joint tension sensor according to claim 3, characterized in that: Dustproof cotton (7) is fixedly mounted at the connection between the collar (31) and the cover shell (11).

5. The cylindrical floating joint tension sensor according to claim 1, characterized in that: An aviation plug (12) is provided on the cover shell (11), and the strain gauge (43) is electrically connected to the aviation plug (12).

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