Gearbox oil temperature measuring device

Abstract

The utility model discloses a gearbox oil temperature measuring device which comprises a supporting rod and a positioning disc, a plurality of oil temperature sensors are detachably connected to the supporting rod, and the oil temperature sensors are detachably arranged in the length direction of the supporting rod; the positioning disc is connected to the outer surface of the gear box, one end of the supporting rod is fixedly connected with the positioning disc, the other end of the supporting rod extends into an inner cavity of the gear box, and the oil temperature sensor is in contact with lubricating oil in the gear box; and the oil temperature sensor is in communication connection with the acquisition device. According to the oil temperature measuring device for the gear box, oil temperature measurement of multiple measuring points can be simultaneously realized without disassembling and assembling the gear box, the structure is simple, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature measurement, in particular to a gear box oil temperature measuring device. Background Art

[0002] With the continuous improvement of the condition monitoring technology and monitoring capabilities of wind turbine equipment, the technology of the entire wind power monitoring industry is developing rapidly.

[0003] In the prior art, the oil temperature monitoring of the fan gearbox oil pool is generally carried out through a single temperature sensor installed on the side of the oil pool. Due to the large volume of the fan gearbox oil tank, the complex temperature rise mechanism of the gearbox, and the various influencing factors, the existing monitoring method cannot accurately measure the oil temperature at different positions of the gearbox, which will directly affect the normal operation of the entire lubrication system. If the temperature of the lubricating oil in the gearbox is to be accurately measured, the gearbox needs to be opened for processing and multiple measuring points need to be arranged inside the gearbox for measurement. This measurement method requires the disassembly and assembly of the gearbox, and the detection process is cumbersome, time-consuming and labor-intensive, and it is not convenient to detect during the use of the gearbox. Utility Model Content

[0004] In view of this, the utility model provides a gearbox oil temperature measuring device, which can simultaneously realize oil temperature measurement of multiple measuring points without disassembling the gearbox, has a simple structure, and saves time and effort.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A gearbox oil temperature measuring device, comprising:

[0007] A support rod, to which a plurality of oil temperature sensors are detachably connected, and the plurality of oil temperature sensors are detachably arranged along the length direction of the support rod;

[0008] A positioning plate is connected to the outer surface of the gear box, one end of the support rod is fixedly connected to the positioning plate, and the other end extends into the inner cavity of the gear box, and the oil temperature sensor is in contact with the lubricating oil in the gear box;

[0009] The oil temperature sensor is in communication connection with the collection device.

[0010] Optionally, an oil temperature detection hole is provided on the box wall of the gear box, and one end of the support rod passes through the oil temperature detection hole and extends into the inner cavity of the gear box.

[0011] Optionally, a first connecting through hole is provided on the positioning plate, and the end of the support rod located outside the gear box is welded into the first connecting through hole;

[0012] The oil temperature detection hole is arranged at a height lower than the oil level of the lubricating oil in the inner cavity of the gear box;

[0013] A sealing structure for preventing lubricating oil from leaking is arranged on the surface of the positioning plate away from the gear box.

[0014] Optionally, the sealing structure comprises a connecting steel pipe and a hose connected together, wherein the connecting steel pipe is fixedly connected to the positioning plate, one end of which is sealedly sleeved around the first connecting through hole, and the other end is connected to the hose;

[0015] The height of one end of the hose away from the transition steel pipe is higher than the height of the oil level, and the signal line of the oil temperature sensor passes through the hose and is connected to the collection device.

[0016] Optionally, one end of the hose is fixedly sleeved on an end of the transition steel pipe away from the gear box through a clamp.

[0017] Optionally, a sealing groove is provided on the end surface of the positioning plate close to the gear box, the sealing groove is an annular groove provided around the first connecting through hole, and a sealing ring is provided in the sealing groove.

[0018] Optionally, a mounting slot is provided on the support rod, the length direction of the mounting slot extends along the length direction of the support rod, and the oil temperature sensor is connected to the mounting slot via a connecting piece;

[0019] The plurality of oil temperature sensors are uniformly distributed on the installation slide groove.

[0020] Optionally, the support rod comprises a mounting section and a sensor connecting section connected together, the mounting section is welded in the first connecting through hole, and the oil temperature sensor is connected to the sensor connecting section;

[0021] The installation section is a hollow steel pipe that is arranged in cooperation with the first connecting through hole, and the sensor connecting section is a semicircular steel pipe.

[0022] Optionally, a second connecting through hole is provided on the positioning plate, and the positioning plate is connected to the gear box via a first connecting bolt passing through the second connecting through hole.

[0023] Optionally, a limiting boss is provided on the end surface of the positioning plate close to the gear box, the limiting boss is provided corresponding to a limiting groove on the gear box, and the limiting boss is inserted into the limiting groove.

[0024] It can be seen from the above technical solution that the gearbox oil temperature measuring device provided by the utility model can detect the oil temperature at different positions in the gearbox by providing a support rod connected to the positioning plate, and multiple oil temperature sensors can be detachably provided on the support rod along the length direction of the support rod, thereby realizing the purpose of installing multiple oil temperature sensors at one insertion position at the same time. The gearbox oil temperature measuring device of the utility model can realize the purpose of measuring the oil temperature at multiple measuring points in the gearbox at one installation position without disassembling the gearbox. The oil temperature measuring device has a simple structure and can realize the oil temperature measurement at multiple measuring points at the same time without disassembling the gearbox. The detection is convenient, time-saving and labor-saving. The oil temperature at different measuring points can be detected during the normal operation of the gearbox, making the detection more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic diagram of the structure of a gearbox oil temperature measuring device provided by an embodiment of the utility model;

[0027] Figure 2 A partial cross-sectional structural diagram of the position of the positioning plate installed in the gear box provided by the embodiment of the utility model;

[0028] Figure 3 A schematic diagram of the structure of a positioning plate provided in an embodiment of the utility model;

[0029] Figure 4 A schematic cross-sectional view of a positioning plate provided in an embodiment of the utility model;

[0030] Figure 5 A schematic structural diagram of a support rod provided by an embodiment of the utility model at an angle;

[0031] Figure 6 A schematic structural diagram of a support rod provided by an embodiment of the utility model from another angle;

[0032] Figure 7 A schematic diagram of the side view of the support rod in one direction provided by an embodiment of the utility model;

[0033] Figure 8 A schematic diagram of the side view of the support rod in another direction provided by an embodiment of the utility model;

[0034] Fig. 9 A schematic diagram of the structure of an oil temperature sensor provided in an embodiment of the utility model connected to a support rod;

[0035] Fig.10 for Fig. 9 Schematic diagram of the cross-sectional structure at the AA position;

[0036] Fig.11 A schematic diagram of the connection structure between the support rod and the positioning plate provided in an embodiment of the utility model.

[0037] in:

[0038] 1. Support rod; 101. Installation section; 102. Sensor connection section; 103. Installation slide; 2. Oil temperature sensor; 201. Sensor connection head end; 202. Sensor body; 3. Signal line; 4. Adapter steel pipe; 5. Hose; 6. Clamp; 7. First connecting bolt; 8. Positioning plate; 801. First connecting through hole; 802. Sealing groove; 803. Limiting boss; 804. Second connecting through hole; 9. Sealing ring; 10. Collection device; 11. Gear box; 1101. Oil temperature detection hole; 1102. Limiting groove; 12. Connecting nut; 13. Second connecting bolt. DETAILED DESCRIPTION

[0039] The utility model discloses a gear box oil temperature measuring device, which can realize oil temperature measurement of multiple measuring points simultaneously without disassembling the gear box, has a simple structure, and saves time and effort.

[0040] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] See also Figures 1 to 10 The gearbox oil temperature measuring device of the utility model comprises a support rod 1 and a positioning plate 8. A plurality of oil temperature sensors 2 are detachably connected to the support rod 1, and the plurality of oil temperature sensors 2 are detachably arranged along the length direction of the support rod 1. The positioning plate 8 is connected to the outer surface of the gearbox 11, one end of the support rod 1 is fixedly connected to the positioning plate 8, and the other end extends into the inner cavity of the gearbox 11, the oil temperature sensor 2 contacts the lubricating oil in the gearbox 11, and the oil temperature sensor 2 is connected to the acquisition device 10 for communication.

[0042] The oil temperature sensor 2 is used to detect the oil temperature in the gear box 11. The acquisition device 10 is used to receive the temperature value collected by the oil temperature sensor 2. The acquisition device 10 is a device in the prior art and will not be described here. The positioning plate 8 is a circular plate. The support rod 1 is inserted into the gear box 11 parallel to the bottom surface of the gear box 11.

[0043] The gearbox oil temperature measuring device of the utility model is provided with a support rod 1 connected to the positioning plate 8, and a plurality of oil temperature sensors 2 are detachably provided on the support rod 1 along the length direction of the support rod 1, so that the oil temperature at different positions in the gearbox 11 can be detected. By extending one end of the support rod 1 connected to the oil temperature sensor 2 into the inner cavity of the gearbox 11, the purpose of simultaneously installing a plurality of oil temperature sensors 2 in one insertion position is achieved. The gearbox oil temperature measuring device of the utility model can achieve the purpose of measuring the oil temperature at multiple measuring points in the gearbox 11 at one installation position. The oil temperature measuring device has a simple structure, and can simultaneously measure the oil temperature at multiple measuring points without disassembling the gearbox. The detection is convenient, time-saving and labor-saving. The oil temperature at different measuring points can be detected during the normal operation of the gearbox 11, and the detection is more convenient.

[0044] In order to facilitate the support rod 1 to extend into the inner cavity of the gear box 11, an oil temperature detection hole 1101 is provided on the wall of the gear box 11. Figure 2 As shown, one end of the support rod 1 passes through the oil temperature detection hole 1101 and extends into the inner cavity of the gear box 11, so that the multiple oil temperature sensors 2 connected to the support rod 1 can detect the oil temperature.

[0045] In order to facilitate the connection between the positioning plate 8 and the support rod 1, a first connecting through hole 801 is provided on the positioning plate 8. Figure 3 and Figure 4 As shown, the end of the support rod 1 located outside the gear box 11 is welded to the first connecting through hole 801. The setting height of the oil temperature detection hole 1101 is lower than the oil level of the lubricating oil in the inner cavity of the gear box 11, so that the oil temperature sensor 2 on the support rod 1 is immersed in the lubricating oil, which is convenient for detecting the oil temperature. A sealing structure for preventing lubricating oil leakage is provided on the surface of the positioning plate 8 away from the gear box 11, so as to prevent the lubricating oil in the gear box 11 from leaking through the oil temperature detection hole 1101.

[0046] In one embodiment, the sealing structure includes a connecting steel pipe 4 and a hose 5 connected together, the connecting steel pipe 4 is fixedly connected to the positioning plate 8, one end of the connecting steel pipe 4 is sealed and sleeved around the first connecting through hole 801, so that the end of the support rod 1 connected to the positioning plate 8 is sealed and sleeved inside the connecting steel pipe 4, and the other end of the connecting steel pipe 4 is connected to the hose 5. In order to prevent the oil from flowing out along the hose 5, the height of the end of the hose 5 away from the connecting steel pipe 4 is higher than the height of the oil level, and the signal line 3 of the oil temperature sensor 2 passes through the hose 5 and is connected to the collection device 10.

[0047] In order to improve the connection reliability between the transition steel pipe 4 and the hose 5 , one end of the hose 5 is fixedly sleeved on the end of the transition steel pipe 4 away from the gear box 11 through a clamp 6 .

[0048] In another embodiment, the sealing structure includes a sealing shell (not shown), which is sealed and welded around the first connecting through hole 801 , and a via hole for the signal line 3 to pass through is provided at the top of the sealing shell.

[0049] In order to improve the sealing performance of the contact surface between the positioning plate 8 and the gear box 11, a sealing groove 802 is provided on the end surface of the positioning plate 8 close to the gear box 11. The sealing groove 802 is an annular groove provided around the first connecting through hole 801. Figure 3 As shown, a sealing ring 9 is arranged in the sealing groove 802. The diameter of the sealing ring 9 is greater than the groove depth of the sealing groove 802, so that the sealing ring 9 can be reliably sealed.

[0050] The positioning plate 8 is provided with a second connecting through hole 804 , and the positioning plate 8 is connected to the box wall of the gear box 11 via a first connecting bolt 7 penetrating through the second connecting through hole 804 .

[0051] Further, in order to facilitate the installation of the oil temperature sensor 2 and to facilitate the adjustment of different installation positions of the oil temperature sensor 2, the support rod 1 is provided with an installation slot 103, and the installation slot 103 is a through slot extending along the length direction of the support rod 1, such as Figure 5 and Figure 6 As shown, the oil temperature sensor 2 is connected to the mounting slot 103 via a connecting member. Fig. 9 and Fig.10 As shown, the oil temperature sensor 2 is connected to the support rod 1 through the second connecting bolt 13 and the connecting nut 12 that are matched and connected. The oil temperature sensor 2 includes a sensor connection head end 201 and a sensor body 202 that are connected together. The sensor connection head end 201 is provided with a third connecting through hole. The second connecting bolt 13 is passed through the third connecting through hole and is fixed to the support rod 1 through the connecting nut 12 at the tail end. Multiple oil temperature sensors 2 can be evenly distributed on the installation slide groove 103, or they can be arranged as needed.

[0052] In one embodiment, the support rod 1 includes a mounting section 101 and a sensor connecting section 102 connected together, the mounting section 101 is welded in the first connecting through hole 801, and a mounting groove 103 is arranged on the sensor connecting section 102, that is, the oil temperature sensor 2 is connected to the sensor connecting section 102. Specifically, the mounting section 101 is a hollow steel pipe arranged in coordination with the first connecting through hole 801, and the hollow steel pipe is welded at the position of the first connecting through hole 801, and the sensor connecting section 102 is a semicircular steel pipe, that is, the entire hollow steel pipe is cut along the axis position to form a support structure with an arc groove, and the signal line is led out along the semicircular steel pipe. The mounting groove 103 is arranged at the bottom of the semicircular steel pipe. When installing, preferably, the mounting groove 103 is arranged horizontally parallel to the bottom surface of the gear box 11, and the bottom of the semicircular steel pipe is arranged close to the bottom surface of the gear box 11.

[0053] In order to improve the connection reliability and sealing of the positioning plate 8, a limiting boss 803 is provided on the end face of the positioning plate 8 close to the gear box 11. The limiting boss 803 is provided corresponding to the limiting groove 1102 on the gear box 11, and the limiting boss 803 is inserted into the limiting groove 1102.

[0054] When installing the gearbox oil temperature measuring device of the utility model, first install the oil temperature sensor 2 at a suitable position of the installation slide groove 103, weld the support rod 1 and the transfer steel pipe 4 to the positioning plate 8, connect the hose 5, and install the sealing ring 9 in the sealing groove 802. Insert the support rod 1 into the gearbox 11 through the oil temperature detection hole 1101 on the box body, and then use the first connecting bolt 7 to fix the positioning plate 8 through the threaded hole reserved in the box body.

[0055] The gearbox oil temperature measuring device of the present invention does not need to add sensor mounting holes on the box body, does not need to disassemble the gearbox 11 to install tooling and sensors, and only needs to use the mounting hole position of the original temperature sensor to realize the oil temperature measurement of multiple measuring points in the gearbox 11. The detection structure is simple and easy to operate manually. The measurement process does not affect the normal operation of the gearbox, saving time and effort.

[0056] In the description of this solution, it should be understood that the terms "upper", "lower", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this solution.

[0057] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0058] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the embodiments can be referred to each other. The above description of the disclosed embodiments enables professionals and technicians in this field to implement or use the utility model. Various modifications to these embodiments will be obvious to professionals and technicians in this field, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features disclosed herein.

Claims

1. A gearbox oil temperature measuring device, characterized in that: include: A support rod, to which a plurality of oil temperature sensors are detachably connected, and the plurality of oil temperature sensors are detachably arranged along the length direction of the support rod; A positioning plate is connected to the outer surface of the gear box, one end of the support rod is fixedly connected to the positioning plate, and the other end extends into the inner cavity of the gear box, and the oil temperature sensor is in contact with the lubricating oil in the gear box; The oil temperature sensor is in communication connection with the collection device.

2. The gearbox oil temperature measuring device according to claim 1, characterized in that: An oil temperature detection hole is arranged on the box wall of the gear box, and one end of the support rod passes through the oil temperature detection hole and extends into the inner cavity of the gear box.

3. The gearbox oil temperature measuring device according to claim 2, characterized in that: The positioning plate is provided with a first connecting through hole, and the end of the support rod located outside the gear box is welded into the first connecting through hole; The oil temperature detection hole is arranged at a height lower than the oil level of the lubricating oil in the inner cavity of the gear box; A sealing structure for preventing lubricating oil from leaking is arranged on the surface of the positioning plate away from the gear box.

4. The gearbox oil temperature measuring device according to claim 3, characterized in that: The sealing structure comprises a connecting steel pipe and a hose connected together, wherein the connecting steel pipe is fixedly connected to the positioning plate, one end of which is sealedly sleeved around the first connecting through hole, and the other end is connected to the hose; The height of one end of the hose away from the transition steel pipe is higher than the height of the oil level, and the signal line of the oil temperature sensor passes through the hose and is connected to the collection device.

5. The gearbox oil temperature measuring device according to claim 4, characterized in that: One end of the hose is fixedly sleeved on an end of the transition steel pipe away from the gear box through a clamp.

6. The gearbox oil temperature measuring device according to claim 3, characterized in that: A sealing groove is arranged on the end surface of the positioning plate close to the gear box. The sealing groove is an annular groove arranged around the first connecting through hole. A sealing ring is arranged in the sealing groove.

7. The gearbox oil temperature measuring device according to claim 1, characterized in that: The support rod is provided with a mounting slot, the length direction of the mounting slot extends along the length direction of the support rod, and the oil temperature sensor is connected to the mounting slot through a connecting piece; The plurality of oil temperature sensors are uniformly distributed on the installation slide groove.

8. The gearbox oil temperature measuring device according to claim 3, characterized in that: The support rod comprises a mounting section and a sensor connecting section connected together, the mounting section is welded in the first connecting through hole, and the oil temperature sensor is connected to the sensor connecting section; The installation section is a hollow steel pipe that is arranged in cooperation with the first connecting through hole, and the sensor connecting section is a semicircular steel pipe.

9. The gearbox oil temperature measuring device according to claim 1, characterized in that: The positioning plate is provided with a second connecting through hole, and the positioning plate is connected to the gear box via a first connecting bolt passing through the second connecting through hole.

10. The gearbox oil temperature measuring device according to claim 1, characterized in that: A limiting boss is arranged on the end surface of the positioning plate close to the gear box, the limiting boss is arranged corresponding to the limiting groove on the gear box, and the limiting boss is inserted into the limiting groove.

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