Adaptive sensor for bearing temperature measurement

Abstract

Compared with the prior art, the adaptive sensor for bearing temperature measurement disclosed by the utility model has the following beneficial effects: through the arrangement of the connecting piece and the temperature sensing element which is in plug-in fit with the connecting piece, in the actual application process, after the connecting piece is connected with a bearing seat, the temperature sensing element is in plug-in fit with the columnar cavity of the connecting piece, so that the temperature sensing element is in plug-in fit with the columnar cavity of the connecting piece; the temperature sensing probe of the temperature sensing element can be inserted into the bearing seat through the insertion channel to sense temperature, when the temperature sensing element mounting box is disassembled, only the temperature sensing element needs to be pulled out and inserted in the axial direction of the connecting piece, mounting and dismounting are convenient and fast, and the temperature sensing element mounting box can adapt to an area with a small mounting space; comprising a temperature sensing element and further comprises a connecting piece, the connecting piece comprises a columnar shell and a sleeve body arranged at one end of the shell, external threads are arranged on the peripheral face of the sleeve body, a columnar cavity used for guiding, inserting and matching of the temperature sensing element is formed in the shell, and an inserting channel which is coaxial with the columnar cavity and allows a temperature sensing probe to penetrate through is formed in the sleeve body.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing temperature measurement technical field especially relates to a kind of adaptive sensor for bearing temperature measurement. BACKGROUND

[0002] Bearing is the component commonly used in mechanical field, and the working temperature of bearing is closely related to its working condition and running state. Therefore, in some application fields, the temperature of bearing is detected online. At present, the temperature of bearing is detected by setting mounting hole on the side wall of bearing seat, inserting temperature measuring probe with thermocouple and other temperature sensing elements into the mounting hole to detect the temperature of bearing seat, so as to predict the working temperature of bearing.

[0003] At present, the temperature sensing probe is generally set in the mounting hole by threaded connection or clamping. The threaded connection generally adopts external thread on the periphery of temperature sensing probe, internal thread in the mounting hole, and then threaded connection. This method needs to use wrench for locking. For the environment with spacious space around bearing seat, it is convenient to use wrench. When the space is limited and wrench cannot be used, socket tool needs to be used for auxiliary operation. However, the end of temperature sensing probe is provided with lead wire for conducting detection signal, which makes temperature sensing probe not suitable for socket. Therefore, in the area with limited installation space, the current application method is not convenient for disassembly and installation, and it is not convenient to disassemble and install temperature sensing probe. SUMMARY

[0004] The utility model aims at solving the above-mentioned problem and provides an adaptive sensor for bearing temperature measurement.

[0005] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows: an adaptive sensor for bearing temperature measurement, comprising a temperature sensing element, further comprising a connecting piece, the connecting piece comprises a cylindrical shell and a sleeve body provided at one end of the shell, the outer periphery of the sleeve body is provided with external thread, the shell is provided with a cylindrical cavity for guiding plug-in cooperation of temperature sensing element, and the sleeve body is provided with a plug-in channel coaxially arranged with the cylindrical cavity and for temperature sensing probe to pass through.

[0006] Further, a clamping assembly is arranged between the shell and the temperature sensing element, the clamping assembly comprises a pressing column arranged on the end face of the shell away from the sleeve body, and the pressing column can switch the state of the clamping assembly when pressed in axial direction.

[0007] Further, a second channel is arranged on the side wall of the shell and communicated with the cylindrical cavity; a first channel is arranged on the end face of the shell and intersected with the second channel along the axial direction of the cylindrical cavity, a limiting piece is arranged in the first channel, an annular groove is arranged on the outer periphery of the temperature sensing element and corresponds to the second channel, and the pressing column is guided and matched with the first channel.

[0008] Further, the pressing column is sequentially connected with a first connecting column, a conical surface and a guide column along the axial direction of the first channel, the guide column is in sliding fit with the first channel, and the radial dimension of the first connecting column is smaller than that of the guide column.

[0009] Further, the end of the first channel is provided with an end cover, a second connecting column is further arranged between the pressing column and the first connecting column, a second compression spring is arranged between the guide column and the bottom of the first channel, the radial dimension of the second connecting column is larger than that of the pressing column, and the pressing column is in guiding fit with the end cover.

[0010] Further, the second channel penetrates through the side wall of the shell at one end away from the columnar cavity, and the second channel is provided with an end plug at one side of the first channel away from the columnar cavity.

[0011] Further, a sliding sleeve is arranged in the columnar cavity in a guiding mode, and a first compression spring is arranged between the sliding sleeve and the bottom of the columnar cavity.

[0012] Compared with the prior art, the adaptive sensor for bearing temperature measurement has the following beneficial effects: by arranging the connecting piece and the plug-in fit temperature sensing element, in the actual application process, the connecting piece can be connected with the bearing seat, and then the temperature sensing element is plug-in fit with the columnar cavity of the connecting piece, the temperature sensing probe of the temperature sensing element can be inserted into the bearing seat through the plug-in channel for temperature sensing, and when the temperature sensing element installation box is disassembled, the temperature sensing element can be pulled out and inserted along the axial direction of the connecting piece, so that the installation and disassembly are convenient, and the area with small installation space can be adapted. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The utility model discloses a kind of adaptive sensors for bearing temperature measurement Figure 1 .

[0014] Figure 2 The utility model discloses a kind of adaptive sensors for bearing temperature measurement Figure 2 .

[0015] Figure 3 The utility model discloses a kind of adaptive sensors for bearing temperature measurement

[0016] Figure 4 The utility model discloses a kind of adaptive sensors for bearing temperature measurement Figure 1 .

[0017] Figure 5 The utility model discloses a kind of adaptive sensors for bearing temperature measurement Figure 2 .

[0018] Figure 6 For Figure 5 The utility model discloses a kind of partial amplification structure schematic view of the middle A of adaptive sensor for bearing temperature measurement.

[0019] Figure 7 For the structure schematic view of the middle clamping assembly of adaptive sensor for bearing temperature measurement in release state.

[0020] In the figure: 1, temperature sensing element;10, wire;11, annular groove;12, temperature sensing probe;13, edge plate;2, connecting piece;20, limiting piece;21, shell;22, sleeve;220, plug-in channel;23, pressing column;231, guide column;232, first connecting column;233, second connecting column;234, conical surface;24, cylindrical cavity;25, sliding sleeve;26, first compression spring;27, first channel;271, second channel;272, end plug;28, second compression spring;29, end cover. DETAILED DESCRIPTION

[0021] The utility model will be further explained in detail in combination with the drawings. The drawings are simplified schematic view, and only schematically illustrate the basic structure of the utility model, so it only shows the structure related to the utility model.

[0022] Please refer to Figures 1-4 , Figure 6 The technical scheme of the utility model is: an adaptive sensor for bearing temperature measurement, comprising a temperature sensing element 1, further comprising a connecting piece 2, the connecting piece 2 comprises a cylindrical shell 21 and a sleeve 22 arranged at one end of the shell 21, the outer circumferential surface of the sleeve 22 is provided with external threads, the shell 21 is provided with a cylindrical cavity 24 for guiding plug-in cooperation of the temperature sensing element 1, and the sleeve 22 is provided with a plug-in channel 220 coaxially arranged with the cylindrical cavity 24 and for the temperature sensing probe 12 to pass through.

[0023] As a specific embodiment, the connecting piece 2 comprises a shell 21 and a sleeve 22 coaxially arranged, the outer periphery of the sleeve 22 is provided with external threads, and the mounting hole provided on the bearing seat is provided with internal threads, so that the connecting piece 2 can be threadedly connected in the mounting hole. In actual application, the outer periphery of the shell 21 can be provided with a hexagonal surface, so that the connecting piece 2 can be installed and removed through the sleeve. After the connecting piece 2 is connected with the bearing seat, the temperature sensing element 1 can be inserted into the cylindrical cavity 24 of the connecting piece 2, and the temperature sensing probe 12 of the temperature sensing element 1 can be inserted into the bearing seat through the insertion channel 220 for temperature sensing. When the temperature sensing element 1 is installed or removed, the temperature sensing element 1 only needs to be pulled out or inserted along the axial direction of the connecting piece 2, so that the temperature sensing element 1 can be conveniently installed and removed, and can be adapted to a region with small installation space. It should be noted that the temperature sensing element 1 is a commonly used temperature sensing element 1 in the art, and the structure thereof is also a commonly used structure in the art, which will not be described here. It should be understood by those skilled in the art.

[0024] Further, as a preferred embodiment, a clamping assembly is arranged between the shell 21 and the temperature sensing element 1. The clamping assembly comprises a pressing column 23 arranged on the end face of the shell 21 away from the sleeve 22, and the pressing column 23 can switch the state of the clamping assembly when pressed in the axial direction. Specifically, referring to Figures 1-6 , the temperature sensing element 1 comprises a body inserted into the cylindrical cavity 24. The clamping assembly is arranged between the body of the temperature sensing element 1 and the side wall of the shell 21. The clamping assembly has a clamping state for clamping and positioning the temperature sensing element 1 and a release state for releasing the temperature sensing element 1. The clamping assembly comprises a pressing column 23. In the initial state without pressing, the pressing column 23 can make the clamping assembly in the clamping state. When the pressing column 23 is pressed and moved in the axial direction, the clamping assembly can be switched to the release state. By clamping the temperature sensing element 1 through the clamping assembly, the fixing stability of the temperature sensing element 1 can be improved. By arranging the pressing column 23 on the end face of the shell 21, the pressing is facilitated, and the state switching of the clamping assembly is facilitated. The specific structure of the clamping assembly is described below.

[0025] Further, as a specific embodiment, the specific structure of the clamping assembly is as follows: Figures 4-6 The side wall of the shell 21 is provided with a second channel 271 communicating with the cylindrical cavity 24. Along the axial direction of the cylindrical cavity 24, the end face of the shell 21 is provided with a first channel 27 intersecting with the second channel 271. The first channel 27 is provided with a limiting piece 20. The outer periphery of the temperature sensing element 1 is provided with an annular groove 11 corresponding to the second channel 271. The pressing column 23 is guided and matched with the first channel 27.

[0026] Furthermore, along the axial direction of the first channel 27 , the pressing column 23 is sequentially connected with the first connecting column 232 , the tapered surface 234 and the guide column 231 . The guide column 231 is slidingly matched with the first channel 27 . The radial dimension of the first connecting column 232 is smaller than the radial dimension of the guide column 231 .

[0027] Furthermore, an end cover 29 is provided at the end of the first channel 27, a second connecting column 233 is provided between the pressing column 23 and the first connecting column 232, a second compression spring 28 is provided between the guide column 231 and the bottom of the first channel 27, the radial dimension of the second connecting column 233 is larger than the radial dimension of the pressing column 23, and the pressing column 23 is guided and matched with the end cover 29.

[0028] Furthermore, the end of the second channel 271 away from the cylindrical cavity 24 passes through the side wall of the housing 21, and an end plug 272 is provided on the side of the second channel 271 away from the cylindrical cavity 24. Specifically, by penetrating the end of the second channel 271 away from the cylindrical cavity 24, the installation and removal of the limiter 20 are facilitated. The limiter 20 is a cylindrical member guided within the second channel 271, with spherical heads at both ends. The limiter 20 is made of steel. The end plug 272 is provided on the side wall of the housing 21, which can block the end of the second channel 271 to achieve a dust-proof effect. The end plug 272 can be made of rubber.

[0029] Furthermore, as a specific embodiment, a sliding sleeve 25 is provided as a guide in the cylindrical cavity 24 , and a first compression spring 26 is provided between the sliding sleeve 25 and the bottom of the cylindrical cavity 24 .

[0030] Specifically, the working principle of the clamping assembly is as follows: the end cover 29 is threadedly connected to the end of the first channel 27, the pressing column 23, the first connecting column 232, the second connecting column 233, the guide column 231 and the tapered surface 234 are coaxially arranged, and the elastic force of the second compression spring 28 can push the guide column 231 so that the second connecting column 233 abuts against the end surface of the end cover 29 for limiting. Figure 4 、 Figure 6 At this time, the guide column 231 can coincide with the second guide channel, and the outer rear surface of the guide column 231 can limit the position of the limiter 20, so that the end portion of the limiter 20 extends out of the second channel 271. At this time, the temperature sensing element 1 is Figure 4 In the state shown, the end of the limiting member 20 can extend into the annular groove 11 to clamp and limit the temperature sensing element 1, thereby limiting the temperature sensing element 1. At this time, it is in the clamping state; and in Figure 4When the first spring 26 is in the state shown, the clamping element can provide a pressing force to the sliding sleeve 25, compressing the first compression spring 26. At this time, the first compression spring 26 is in a compressed state. When the temperature sensing element 1 needs to be disassembled, the end of the pressing column 23 is pressed to push the guide column 231 downward to squeeze the second compression spring 28. When the first connecting section coincides with the second channel 271, the guide column 231 does not limit the end of the limiting member 20. Since the elastic force of the first compression spring 26 has a tendency to push the temperature sensing element 1 upward, the side surface of the annular groove 11 has a tendency to push the end of the limiting member 20 outward. When the end of the limiting member 20 is not restricted, the limiting member 20 will be pushed outward. Figure 7 , the clamping assembly switches to the released state, at this time the first compression spring 26 pushes the sliding sleeve 25 and the temperature sensing element 1 to move upward, so that the sliding sleeve 25 coincides with the second channel 271, so that the sliding sleeve 25 can limit the end of the limiter 20 close to the columnar cavity 24, preventing the limiter 20 from entering the columnar cavity 24. After the temperature sensing element 1 is released, the pressing column 23 is released, and the wire 10 is pulled out to pull the temperature sensing element 1 out. At this time, the clamping assembly is kept in the position of the sliding sleeve 25. Figure 7 In the released state shown, when installing a new temperature sensing element 1, the temperature sensing element 1 is inserted into the cylindrical cavity 24 so that the temperature sensing element 1 contacts the end surface of the sliding sleeve 25. Then, a pressing force is applied to the temperature sensing element 1 to squeeze the first compression spring 26, pushing the sliding sleeve 25 to move toward the bottom of the cylindrical cavity 24. When the annular groove 11 coincides with the second channel 271, the elastic force of the second compression spring 28 can push the limiter 20 to move, so that the end of the limiter 20 extends into the annular groove 11, and the switch is switched from Figure 4 、 Figure 6 The locked state is shown.

[0031] Further, refer to Figure 4 An edge plate 13 is provided at the end of the outer shell of the temperature sensing element 1. When the edge plate 13 contacts the end of the shell 21, the annular groove 11 corresponds exactly to the second channel 271, which is more convenient for assembly.

[0032] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. An adaptive sensor for bearing temperature measurement, comprising a temperature sensing element (1), characterized in that: The invention also includes a connecting member (2), wherein the connecting member (2) includes a cylindrical shell (21) and a sleeve (22) arranged at one end of the shell (21), wherein the outer peripheral surface of the sleeve (22) is provided with an external thread, and a cylindrical cavity (24) for guiding the plug-in fitting of the temperature sensing element (1) is provided in the shell (21), and a plug-in channel (220) is provided in the sleeve (22) and is coaxially arranged with the cylindrical cavity (24) and for the temperature sensing probe (12) to pass through.

2. The adaptive sensor for bearing temperature measurement according to claim 1, characterized in that: A clamping assembly is provided between the housing (21) and the temperature sensing element (1), and the clamping assembly includes a pressing column (23) which is arranged on an end face of the housing (21) away from the sleeve (22). The pressing column (23) can switch the state of the clamping assembly when pressed axially.

3. The adaptive sensor for bearing temperature measurement according to claim 2, characterized in that: A second channel (271) communicating with the columnar cavity (24) is provided on the side wall of the shell (21); along the axial direction of the columnar cavity (24), a first channel (27) intersecting with the second channel (271) is provided on the end surface of the shell (21); a limiting member (20) is provided in the first channel (27); an annular groove (11) corresponding to the second channel (271) is provided on the outer peripheral surface of the temperature sensing element (1); and the pressing column (23) is guided and matched with the first channel (27).

4. The adaptive sensor for bearing temperature measurement according to claim 3, characterized in that: Along the axial direction of the first channel (27), the pressing column (23) is sequentially connected to the first connecting column (232), the tapered surface (234) and the guide column (231), the guide column (231) and the first channel (27) are guided and slidably matched, and the radial dimension of the first connecting column (232) is smaller than the radial dimension of the guide column (231).

5. The adaptive sensor for bearing temperature measurement according to claim 4, characterized in that: An end cap (29) is provided at the end of the first channel (27), a second connecting column (233) is further provided between the pressing column (23) and the first connecting column (232), a second compression spring (28) is provided between the guide column (231) and the bottom of the first channel (27), the radial dimension of the second connecting column (233) is greater than the radial dimension of the pressing column (23), and the pressing column (23) is guided and matched with the end cap (29).

6. The adaptive sensor for bearing temperature measurement according to claim 5, characterized in that: One end of the second channel (271) away from the columnar cavity (24) passes through the side wall of the housing (21), and an end plug (272) is provided on the side of the second channel (271) located away from the columnar cavity (24) of the first channel (27).

7. The adaptive sensor for bearing temperature measurement according to claim 6, characterized in that: A sliding sleeve (25) is provided as a guide in the cylindrical cavity (24), and a first compression spring (26) is provided between the sliding sleeve (25) and the bottom of the cylindrical cavity (24).

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