Core-pulling type bearing bush temperature measuring device and installation and replacement method

Abstract

The invention relates to a core-pulling type bearing bush temperature measuring device and an installation and replacement method, the core-pulling type bearing bush temperature measuring device is used for testing the temperature of a unit bearing bush, the unit bearing bush is provided with a temperature measuring hole, and the core-pulling type bearing bush temperature measuring device comprises a temperature sensing assembly, a protection tube assembly, a locking assembly and a positioning assembly. The temperature sensing assembly comprises a temperature measuring element and a positioning piece, and the temperature measuring element is connected with the positioning piece; the protection tube assembly is fixedly installed on the temperature measuring hole. The temperature sensing assembly is detachably connected to the protection tube assembly through the locking assembly, and the temperature measuring element and the positioning piece are both arranged in the protection tube assembly; the positioning assembly is arranged in the protection tube assembly, and the positioning assembly is matched with the positioning piece so that the temperature measuring element can be positioned in the temperature measuring hole. According to the core-pulling type bearing bush temperature measuring device, on one hand, precise positioning of the temperature measuring element during installation or replacement is achieved through cooperation of the positioning assembly and the positioning piece, on the other hand, after the temperature measuring element is in place, the temperature sensing assembly is locked through the locking assembly, and it is further guaranteed that the temperature measuring element cannot be separated from the temperature measuring hole.

Description

Technical Field

[0001] The present invention relates to the technical field of temperature sensors, and in particular to a core-removable bearing temperature measuring device and an installation and replacement method thereof. Background Art

[0002] The generator will have certain losses during operation, such as copper loss of windings, core loss, friction loss of bearings, etc. These losses will be manifested in the form of heat, and the heat will increase with the increase of load, which will cause excessive temperature. When the temperature is too high, it will not only reduce the service life of the equipment, but also increase the probability of abnormal accidents. Therefore, real-time monitoring of the operating temperature of the generator equipment is the main means to measure the operating status of the equipment and regulate the load.

[0003] Normally, after a period of operation, the unit may experience temperature resistance jumps, disconnections, large measurement errors, and other faults due to various factors such as vibration, thermal shock, magnetic field, and electric field. This poses a greater risk and hidden danger to the safe and reliable operation of the unit. The power plant must replace or repair the faulty temperature probe. The existing unit bearing detection device, because it works in an environment with oil pollution, usually sets the temperature probe in a protective tube. During installation or replacement, only the temperature probe is removed without removing the protective tube. Therefore, it is impossible to ensure that the new temperature probe is accurately positioned in the temperature measuring hole, which not only affects the use of the bearing detection device after replacement, but also increases the difficulty of replacing the temperature probe. Summary of the invention

[0004] The first object of the present invention is to provide a core-removable bearing temperature measuring device, which aims to solve the technical problem that the temperature measuring probe of the existing bearing detection device cannot be accurately positioned during installation or replacement, thereby affecting subsequent use.

[0005] In order to solve the above technical problems, a core-removable bearing temperature measuring device is provided, which is used to test the temperature of the unit bearing. The unit bearing is provided with a temperature measuring hole, including:

[0006] The temperature sensing component comprises a temperature measuring element and a positioning element, wherein the temperature measuring element and the positioning element are connected;

[0007] A protection tube assembly is fixedly mounted on the temperature measuring hole;

[0008] A locking assembly, wherein the temperature sensing assembly is detachably connected to the protection tube assembly through the locking assembly, and the temperature measuring element and the positioning member are both arranged in the protection tube assembly;

[0009] A positioning assembly is arranged in the protection tube assembly, and the positioning assembly cooperates with the positioning piece to position the temperature measuring element in the temperature measuring hole.

[0010] Furthermore, the positioning assembly includes a first magnet and a second magnet, the second magnet is arranged between the first magnet and the temperature measuring hole, and the magnetic force of the second magnet is greater than the magnetic force of the first magnet.

[0011] Further, a guide groove is formed on the first magnet, a positioning groove is formed on the second magnet, and a guide abutment surface cooperating with the guide groove and the positioning groove is formed on the positioning member.

[0012] Furthermore, in the direction from the first magnet toward the temperature measuring hole, the apertures of the guide groove and the positioning groove gradually decrease.

[0013] Furthermore, the protection tube assembly includes a probe protection tube, a cable protection tube and a mounting joint. The probe protection tube is pre-installed in the temperature measuring hole, and the cable protection tube is detachably connected to the probe protection tube via the mounting joint.

[0014] Furthermore, the protection tube assembly also includes a guide tube, the guide tube is nested in the cable protection tube, the temperature sensing assembly is arranged in the guide tube, and the locking assembly is connected between the guide tube and the temperature sensing assembly.

[0015] Furthermore, the temperature sensing component also includes a wire and a first connector, the first connector is connected to a first end of the wire, and the temperature measuring element and the positioning member are connected to a second end of the wire.

[0016] Furthermore, the removable bearing temperature measuring device also includes an adapter wire assembly, which includes a cable body and a second connector, one end of the cable body is connected to the terminal box, and the other end is connected to the second connector, and the first connector and the second connector are detachably connected.

[0017] The second object of the present invention is to provide a method for installing and replacing a core-removable bearing temperature measuring device, which acts on the above-mentioned core-removable bearing temperature measuring device. The installation steps of the core-removable bearing temperature measuring device include:

[0018] Pre-installing the probe protection tube in the temperature measuring hole;

[0019] Insert the temperature sensing component into the guide tube and push the temperature measuring element into the temperature measuring hole so that the positioning member is connected to the positioning component;

[0020] Fixing the guide tube and the temperature sensing component by means of the locking component;

[0021] Connecting the temperature sensing component to the adapter wire component;

[0022] Connect the adapter wire assembly to the terminal box.

[0023] Furthermore, the steps for replacing the core-removable bearing temperature measuring device include:

[0024] Disconnect the faulty temperature sensing component from the adapter cable component;

[0025] Loosen the locking assembly and pull the faulty temperature sensing assembly out of the guide tube;

[0026] Insert a new temperature sensing component into the guide tube and push the temperature measuring element into the temperature measuring hole so that the positioning member is connected to the positioning component;

[0027] Fixing the guide tube and the temperature sensing component by means of the locking component;

[0028] Connecting the temperature sensing component to the adapter wire component;

[0029] Connect the adapter wire assembly to the terminal box.

[0030] Implementing the embodiments of the present invention will have the following beneficial effects:

[0031] The core-removable bearing temperature measuring device in the present embodiment has a positioning piece on the temperature measuring element and a positioning assembly near the temperature measuring hole. When the temperature measuring element is installed or replaced, the temperature measuring element is inserted into the guide tube. When it is near the positioning assembly, the positioning piece is adsorbed on the positioning assembly. At this time, the temperature measuring element can be ensured to be in the temperature measuring hole to ensure the accuracy of the measured data. Subsequently, the temperature sensing assembly and the protective tube assembly are locked by the locking assembly to prevent relative displacement between the temperature sensing assembly and the protective tube assembly, thereby preventing the temperature measuring element from being separated from the temperature measuring hole. The core-removable bearing temperature measuring device of the present application, on the one hand, utilizes the cooperation of the positioning assembly and the positioning piece to achieve precise positioning of the temperature measuring element during installation or replacement. On the other hand, after the temperature measuring element is in place, the locking assembly is used to lock the temperature sensing assembly to further ensure that the temperature measuring element will not be separated from the temperature measuring hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 It is a structural schematic diagram of the core-removable bearing temperature measuring device according to an embodiment of the present invention;

[0034] Figure 2A cross-sectional view of a core-removable bearing temperature measuring device according to an embodiment of the present invention;

[0035] Figure 3 for Figure 2 A local enlarged schematic diagram of the middle A;

[0036] Figure 4 A flowchart of the steps for installing the core-removable bearing temperature measuring device according to an embodiment of the present invention;

[0037] Figure 5 The present invention is a flowchart of the steps for replacing the temperature sensing component of the removable bearing temperature measuring device described in an embodiment of the present invention.

[0038] Wherein: 100, core-removable bearing temperature measuring device; 110, temperature sensing assembly; 111, temperature measuring element; 112, positioning piece; 1121, guide abutment surface; 113, wire; 114, first connector; 120, protection tube assembly; 121, probe protection tube; 122, cable protection tube; 123, installation joint; 124, guide tube; 130, locking assembly; 140, positioning assembly; 141, first magnet; 1411, guide groove; 142, second magnet; 1421, positioning groove; 150, adapter assembly; 151, cable body; 1511, shielding wire; 152, second connector;

[0039] 200. Bearing; 210. Temperature measuring hole. DETAILED DESCRIPTION

[0040] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, 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 make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0041] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments 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.

[0043] When replacing the existing temperature measuring resistor, it is necessary to disassemble the temperature measuring resistor as a whole and install the new temperature measuring resistor in the original temperature measuring hole. This maintenance method has the following defects. First, the generator set needs to be shut down and the lubricating oil and other media need to be discharged. The required construction period is long and the workload is large. On the other hand, when disassembling, the temperature measuring resistor needs to be disassembled as a whole, including the probe protection tube, bolts and wires, etc., which will incur a large maintenance cost. In order to improve the above technical problems, this application proposes a solution that does not require shutdown when replacing the temperature measuring resistor, and only needs to replace the core parts.

[0044] Please refer to Figure 1-Figure 3 The embodiment of the present invention provides a core-removable bearing temperature measuring device 100, which is used to test the temperature of the unit bearing 200. The unit bearing 200 is provided with a temperature measuring hole 210. The core-removable bearing temperature measuring device 100 includes a temperature sensing component 110, a protection tube component 120, a locking component 130 and a positioning component 140. The temperature sensing component 110 includes a temperature measuring element 111 and a positioning component 112, and the temperature measuring element 111 and the positioning component 112 are connected; the protection tube component 120 is fixedly installed on the temperature measuring hole 210; the temperature sensing component 110 is detachably connected to the protection tube component 120 through the locking component 130, and the temperature measuring element 111 and the positioning component 112 are both arranged in the protection tube component 120; the positioning component 140 is arranged in the protection tube component 120, and the positioning component 140 cooperates with the positioning component 112 to position the temperature measuring element 111 in the temperature measuring hole 210. Exemplarily, the positioning member 112 is disposed outside the temperature measuring element 111. In this embodiment, the positioning member 112 is a permanent magnet. It can be understood that the positioning component 140 is configured as a magnet adsorbed by the positioning member 112 or a material adsorbed by the positioning member 112. The locking component 130 is used to fix the temperature sensing component 110 and the protection tube component 120 to prevent the temperature measuring element 111 from being separated from the temperature measuring hole 210. The specific structure thereof can be referred to the patent document disclosed in Publication No. C117394611A, which will not be described in detail here.

[0045] Please refer to Figure 1 , Figure 2 and Figure 3In the core-removable bearing temperature measuring device 100 of the present embodiment, since the positioning member 112 is provided on the temperature measuring element 111, and the positioning assembly 140 is provided near the temperature measuring hole 210, when installing or replacing the temperature measuring element 111, the temperature measuring element 111 is inserted into the guide tube 124, and when it is near the positioning assembly 140, the positioning member 112 is adsorbed on the positioning assembly 140, and at this time, the position of the temperature measuring element 111 can be ensured to be in the temperature measuring hole 210, so as to ensure the accuracy of the measured data, and then the locking assembly 130 is used to lock the temperature measuring element 111. The temperature sensing component 110 and the protective tube component 120 are locked to prevent relative displacement between the temperature sensing component 110 and the protective tube component 120, and to prevent the temperature measuring element 111 from being separated from the temperature measuring hole 210. The removable bearing temperature measuring device 100 of the present application, on the one hand, utilizes the cooperation of the positioning component 140 and the positioning member 112 to achieve precise positioning of the temperature measuring element 111 during installation or replacement, and on the other hand, utilizes the locking component 130 to lock the temperature sensing component 110 after the temperature measuring element 111 is in place, thereby further ensuring that the temperature measuring element 111 will not be separated from the temperature measuring hole 210.

[0046] Please refer to Figure 1 , Figure 2 and Figure 3In a possible implementation, the positioning assembly 140 includes a first magnet 141 and a second magnet 142, the second magnet 142 is disposed between the first magnet 141 and the temperature measuring hole 210, and the magnetic force of the second magnet 142 is greater than the magnetic force of the first magnet 141. Exemplarily, the first magnet 141 is a weak magnet, and the second magnet 142 is a strong magnet. The main function of the first magnet 141 is to guide the positioning member 112 and the temperature measuring element 111 to enter the position of the second magnet 142, thereby achieving accurate positioning of the temperature measuring element 111, and the main function of the second magnet 142 is to adsorb and position, and fix the temperature measuring element 111 at the position of the temperature measuring hole 210. If only a strong magnet is provided, the temperature measuring element 111 will be adsorbed by the strong magnet before entering the temperature measuring hole 210 due to the too strong adsorption force. Therefore, in this embodiment, the strong magnet is only provided in a small part of the rear end, and the weak magnet occupies the majority. The front end first uses the first magnet 141 with weaker magnetic force, and its magnetic force has both a guiding effect and does not firmly adsorb the temperature measuring element 111. In addition, it should be noted that the first magnet 141 also has a certain degree of fixing and adsorbing effect on the temperature measuring element 111 and the positioning member 112. The first magnet 141 and the second magnet 142 together constitute the positioning component 140 in the removable bearing temperature measuring device 100. Among them, the second magnet 142 is placed between the first magnet 141 and the temperature measuring hole 210, and the magnetic force of the second magnet 142 is greater than the magnetic force of the first magnet 141. This design enables the temperature sensing component 110 to be automatically and accurately positioned through the action of magnetic force when inserted into the protective tube component 120, ensuring that the temperature measuring element 111 is correctly located in the temperature measuring hole 210. Specifically, when the temperature sensing component 110 approaches the positioning component 140, the positioning member 112 will be attracted by the magnetic force and adsorbed to the positioning component 140, thereby ensuring the correct position of the temperature measuring element 111, and further ensuring the accuracy of the measurement data. In addition, since the second magnet 142 has a larger magnetic force, it can more effectively pull the positioning member 112 toward itself, further enhancing the stability and reliability of positioning.

[0047] Please refer to Figure 1 , Figure 2 and Figure 3In a possible implementation, a guide groove 1411 is formed on the first magnet 141, a positioning groove 1421 is formed on the second magnet 142, and a guide abutment surface 1121 that cooperates with the guide groove 1411 and the positioning groove 1421 is formed on the positioning member 112. Exemplarily, the function of the guide groove 1411 is to facilitate the temperature measuring element 111 to enter the first magnet 141 through the guiding effect of the guide groove 1411, and then enter the positioning groove 1421 to be adsorbed and positioned with the second magnet 142. The function of setting the guide groove 1411 and the positioning groove 1421 is to ensure that the temperature measuring element 111 can be accurately positioned in the temperature measuring hole 210 during installation or replacement, thereby improving the accuracy of the measurement data and the reliability of the device. The guide groove 1411 is located on the first magnet 141, and is used to guide the positioning member 112 to move toward the temperature measuring hole 210. When the temperature sensing component 110 is inserted into the guide tube 124, due to the existence of the guide groove 1411, the positioning member 112 will slide smoothly into the temperature measuring hole 210 along the guide groove 1411. The positioning groove 1421 is located on the second magnet 142 and is used in conjunction with the guide groove 1411. Through the cooperation of the guide abutment surface 1121 with the guide groove 1411 and the positioning groove 1421, the positioning member 112 can be accurately positioned when approaching the temperature measuring hole 210. The magnetic force of the second magnet 142 is greater than that of the first magnet 141, which ensures that the positioning member 112 can be firmly adsorbed on the positioning component 140 when approaching the temperature measuring hole 210, thereby ensuring that the position of the temperature measuring element 111 is in the temperature measuring hole 210. Through the precise cooperation of the guide groove 1411 and the positioning groove 1421, the measurement error caused by improper manual installation can be effectively reduced, ensuring that the data measured each time is accurate and reliable.

[0048] Please refer to Figure 1 , Figure 2 and Figure 3 In a possible implementation, the apertures of the guide groove 1411 and the positioning groove 1421 gradually decrease in the direction from the first magnet 141 to the temperature measuring hole 210. Exemplarily, the guide groove 1411 is in a truncated cone shape, and the positioning groove 1421 is in a truncated cone shape. The first magnet 141 and the second magnet 142 abut against each other, so that there is almost no gap between the guide groove 1411 and the positioning groove 1421. In this embodiment, the apertures of the positions where the guide groove 1411 and the positioning groove 1421 are in contact are equal, so that the guide groove 1411 and the positioning groove 1421 can be adapted to each other, which is conducive to the temperature measuring element 111 passing through the guide groove 1411 and entering the positioning groove 1421.

[0049] Please refer to Figure 1 , Figure 2 and Figure 3In a possible implementation, the protection tube assembly 120 includes a probe protection tube 121, a cable protection tube 122 and a mounting joint 123. The probe protection tube 121 is pre-installed in the temperature measuring hole 210, and the cable protection tube 122 is detachably connected to the probe protection tube 121 through the mounting joint 123. Exemplarily, the mounting joint 123 is a bolt, that is, the probe protection tube 121 and the cable protection tube 122 are connected by bolts. The probe protection tube 121 is pre-installed and fixed in the temperature measuring hole 210 of the bearing 200 through the mounting joint 123. The probe protection tube 121 provides a carrier, a channel and a space for the replacement of the temperature sensing component 110. Since the working environment of the core-removable bearing temperature measuring device 100 of the present application is harsh, with oil stains, dust or other foreign matter, the probe protection tube 121 and the cable protection tube 122 are provided to protect the temperature sensing component 110, which is beneficial to delay the service life of the temperature measuring element 111.

[0050] Please refer to Figure 1 , Figure 2 and Figure 3 In a possible embodiment, the protection tube assembly 120 also includes a guide tube 124, the guide tube 124 is nested in the cable protection tube 122, the temperature sensing component 110 is arranged in the guide tube 124, and the locking assembly 130 is connected between the guide tube 124 and the temperature sensing component 110. Exemplarily, the guide tube 124 is used to guide the temperature sensing component 110 to a designated temperature measurement position (i.e., the temperature measuring hole 210) when installing or replacing the temperature sensing component 110. Through the guidance of the guide tube 124, the temperature measuring element 111 can be accurately positioned in the temperature measuring hole 210, thereby improving the accuracy of the measurement. The design of the guide tube 124 simplifies the installation and replacement process, making the operation more convenient. The guide tube 124 provides physical protection for the temperature sensing component 110, reducing damage caused by factors such as vibration and impact.

[0051] Please refer to Figure 1 , Figure 2 and Figure 3 In a possible implementation, the temperature sensing component 110 further includes a wire 113 and a first connector 114 , the first connector 114 is connected to a first end of the wire 113 , and the temperature measuring element 111 and the positioning member 112 are connected to a second end of the wire 113 .

[0052] Please refer to Figure 1 , Figure 2 and Figure 3In a possible embodiment, the removable bearing temperature measuring device 100 also includes an adapter wire assembly 150, the adapter wire assembly 150 includes a cable body 151 and a second connector 152, one end of the cable body 151 is connected to a terminal box (not shown in the figure), and the other end is connected to the second connector 152, and the first connector 114 is detachably connected to the second connector 152. Exemplarily, the main function of the terminal box is to serve as an electrical connection point for the removable bearing temperature measuring device 100. It is connected to the cable body 151 of the adapter wire assembly 150, and is connected to the temperature sensing assembly 110 through the adapter wire assembly 150. It can be used to receive signals from the temperature measuring element 111 and transmit these signals to a monitoring system or control device for temperature monitoring and data analysis. In this embodiment, the first connector 114 and the second connector 152 are detachably connected by threaded connection. In specific applications, the connection method between the first connector 114 and the second connector 152 is not limited to this. For example, it can also be a snap-on connection, or a plug-in connection, or a magnetic connection, etc., and no excessive restrictions are made here.

[0053] Please refer to Figure 1 , Figure 2 and Figure 3 The cable body 151 includes a high temperature resistant FEP shielded wire 1511. FEP is an excellent high temperature material that can withstand extreme temperature conditions. In the environment where the bearing 200 is measured, the temperature will be very high. The use of the high temperature resistant FEP shielded wire 1511 can ensure that the performance is maintained unaffected in a high temperature environment. FEP has good electrical insulation properties, which means that it can effectively prevent electrical short circuits or current leakage, which is crucial for a generator bearing 200 that is running and generating heat and may be accompanied by a high voltage environment. The core-removable bearing temperature measuring device 100 will be exposed to engine oil and other chemicals. The chemical resistance of FEP can protect the wire 113 from corrosion by these substances. In electrical measurement and transmission, preventing external electromagnetic interference is key. The high temperature resistant FEP shielded wire 1511 has good electromagnetic shielding properties, which helps to maintain accurate temperature measurement results and avoid erroneous readings. During long-term use, the high temperature resistant FEP shielded wire 1511 maintains long-term stability due to its excellent heat resistance, cold resistance, moisture resistance and aging resistance, and is suitable for long-term continuous use and reduces the frequency of replacement.

[0054] Please refer to Figure 4 and Figure 5 The second object of the present invention is to provide a method for installing and replacing a core-removable bearing temperature measuring device 100, which acts on the above-mentioned core-removable bearing temperature measuring device 100. The installation steps of the core-removable bearing temperature measuring device 100 include:

[0055] Pre-install the probe protection tube 121 in the temperature measuring hole 210;

[0056] Insert the temperature sensing assembly 110 into the guide tube 124 and push the temperature measuring element 111 into the temperature measuring hole 210 so that the positioning member 112 is connected to the positioning assembly 140;

[0057] The guide tube 124 and the temperature sensing component 110 are fixed by the locking assembly 130; illustratively, the guide tube 124 and the temperature sensing component 110 are fixed by the locking assembly 130, thereby avoiding relative displacement between the temperature sensing component 110 and the protective tube assembly 120, ensuring that the temperature measuring element 111 will not be separated from the temperature measuring hole 210, thereby improving the reliability of the entire device.

[0058] Connect the temperature sensing component 110 to the adapter cable component 150;

[0059] Connect the adapter wire assembly 150 to the terminal box.

[0060] Please refer to Figure 4 and Figure 5 In a possible implementation manner, the steps of replacing the core-removable bearing temperature measuring device 100 include:

[0061] Disconnect the faulty temperature sensing component 110 from the adapter wire component 150; illustratively, at this time, the adapter wire component 150 is still connected to the terminal box and does not need to be disconnected.

[0062] The locking assembly 130 is released, and the faulty temperature sensing assembly 110 is pulled out of the guide tube 124; illustratively, at this time, the protection tube assembly 120 is still connected to the temperature measuring hole 210 of the bearing bush 200. In other words, only the temperature sensing assembly 110 needs to be replaced, and the protection tube assembly 120 and the adapter assembly 150 do not need to be replaced or disassembled.

[0063] Insert the new temperature sensing assembly 110 into the guide tube 124 and push the temperature measuring element 111 into the temperature measuring hole 210 so that the positioning member 112 is connected to the positioning assembly 140;

[0064] The guide tube 124 and the temperature sensing component 110 are fixed by the locking component 130;

[0065] Connect the temperature sensing component 110 to the adapter cable component 150;

[0066] Connect the adapter wire assembly 150 to the terminal box.

[0067] To summarize, the core invention of the present application is to divide the removable bearing temperature measuring device 100 into three sections, wherein the temperature sensing component 110 is the middle section, that is, the adapter wire assembly 150, the temperature sensing component 110 and the protective tube assembly 120 are sequentially connected. When replacement is required, it is only necessary to disconnect the middle temperature sensing component 110 from the adapter wire assembly 150 and the protective tube assembly 120 respectively. The greatest advantage of the present application is that the temperature sensing component 110 is not directly connected to the setting to be tested (unit bearing 200) and the terminal box, thereby avoiding the need to shut down the unit and the terminal box during replacement, which is conducive to solving the problem of inconvenience in replacing the temperature measuring element 111 due to the oil lamp environmental factor of the unit itself.

[0068] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A core-removable bearing temperature measuring device, used to test the temperature of the unit bearing, the unit bearing is provided with a temperature measuring hole, characterized in that: include: The temperature sensing component comprises a temperature measuring element and a positioning element, wherein the temperature measuring element and the positioning element are connected; A protection tube assembly is fixedly mounted on the temperature measuring hole; A locking assembly, wherein the temperature sensing assembly is detachably connected to the protection tube assembly through the locking assembly, and the temperature measuring element and the positioning member are both arranged in the protection tube assembly; A positioning assembly is arranged in the protection tube assembly, and the positioning assembly cooperates with the positioning piece to position the temperature measuring element in the temperature measuring hole.

2. The core-removable bearing temperature measuring device according to claim 1 is characterized in that: The positioning assembly includes a first magnet and a second magnet. The second magnet is arranged between the first magnet and the temperature measuring hole, and the magnetic force of the second magnet is greater than the magnetic force of the first magnet.

3. The core-removable bearing temperature measuring device according to claim 2 is characterized in that: A guide groove is formed on the first magnet, a positioning groove is formed on the second magnet, and a guide abutment surface matched with the guide groove and the positioning groove is formed on the positioning member.

4. The core-removable bearing temperature measuring device according to claim 3 is characterized in that: In the direction from the first magnet toward the temperature measuring hole, the apertures of the guide groove and the positioning groove gradually decrease.

5. The core-removable bearing temperature measuring device according to claim 1 is characterized in that: The protection tube assembly comprises a probe protection tube, a cable protection tube and an installation joint. The probe protection tube is preinstalled in the temperature measuring hole, and the cable protection tube is detachably connected to the probe protection tube via the installation joint.

6. The core-removable bearing temperature measuring device according to claim 5 is characterized in that: The protection tube assembly also includes a guide tube, which is nested in the cable protection tube. The temperature sensing assembly is arranged in the guide tube, and the locking assembly is connected between the guide tube and the temperature sensing assembly.

7. The core-removable bearing temperature measuring device according to claim 1 is characterized in that: The temperature sensing component also includes a wire and a first connector, wherein the first connector is connected to a first end of the wire, and the temperature measuring element and the positioning member are connected to a second end of the wire.

8. The core-removable bearing temperature measuring device according to claim 7 is characterized in that: The removable bearing temperature measuring device also includes an adapter wire assembly, which includes a cable body and a second connector. One end of the cable body is connected to the terminal box, and the other end is connected to the second connector. The first connector and the second connector are detachably connected.

9. A method for installing and replacing a core-removable bearing temperature measuring device, acting on the core-removable bearing temperature measuring device as claimed in any one of claims 1 to 8, characterized in that: The installation steps of the core-removable bearing temperature measuring device include: Pre-installing the probe protection tube in the temperature measuring hole; Insert the temperature sensing component into the guide tube and push the temperature measuring element into the temperature measuring hole so that the positioning member is connected to the positioning component; Fixing the guide tube and the temperature sensing component by means of the locking component; Connecting the temperature sensing component to the adapter wire component; Connect the adapter wire assembly to the terminal box.

10. The installation and replacement method of the core-removable bearing temperature measuring device according to claim 9 is characterized in that: The replacement steps of the core-removable bearing temperature measuring device include: Disconnect the faulty temperature sensing component from the adapter cable component; Loosen the locking assembly and pull the faulty temperature sensing assembly out of the guide tube; Insert a new temperature sensing component into the guide tube and push the temperature measuring element into the temperature measuring hole so that the positioning member is connected to the positioning component; Fixing the guide tube and the temperature sensing component by means of the locking component; Connecting the temperature sensing component to the adapter wire component; Connect the adapter wire assembly to the terminal box.

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