Linear variable differential transformer with variable output gradient

Abstract

The invention relates to the technical field of transformers, and particularly discloses a linear variable differential transformer with variable output gradient, which comprises a high-temperature-resistant component, an adjusting component and an anti-interference component, the high-temperature-resistant component is positioned outside the adjusting component, and the anti-interference component is positioned at the right end of the adjusting component; the adjusting assembly comprises an adjusting machine shell, a connecting rod, an iron core, a first coil and a second coil, the first coil and the second coil are detachably connected to the interior of the adjusting machine shell, the first coil is located on the left side of the second coil, and frameworks are fixedly arranged in the first coil and the second coil; the right side of the connecting rod is provided with external threads, the left end and the right end of the iron core are provided with a left threaded hole and a right threaded hole respectively, and the right side of the connecting rod is in threaded connection with the left threaded hole. The problem that the displacement sensor is frequently replaced when the working mode of the measured object is switched and larger displacement or different output gradients are required is solved, and the displacement sensor has the functions of high temperature resistance and electromagnetic interference resistance.

Description

Technical Field

[0001] The present invention relates to the technical field of transformers, and in particular to a linear variable differential transformer with variable output gradient. Background Art

[0002] The principle of the linear variable differential transformer is that when an alternating current flows through the excitation winding, an alternating magnetic field is generated between the coil and the iron core. Because there is mutual inductance between the excitation winding and the output winding, and the mutual inductance is a function of the position of the core-connecting rod assembly, an electrical signal (output gradient) proportional to the displacement of the core is induced in the output winding. By converting the electrical signal into a displacement signal, the displacement of the moving object can be fed back to the controller.

[0003] At present, the existing technology still has the following areas for improvement: each linear variable differential transformer has only a unique working stroke and output gradient, so there are limitations on the measured physical displacement and output gradient. If the measured object requires a larger displacement or other output gradient, it is necessary to replace the matching linear variable differential transformer. The existing linear variable differential transformer is prone to internal parts being damaged by heat in a high temperature environment, and is more susceptible to external electromagnetic interference, resulting in inaccurate data and damaged parts. Summary of the invention

[0004] In order to solve the above problems existing in the prior art, the present invention provides a linear variable differential transformer with a variable output gradient, which can solve the problem of frequent replacement of displacement sensors when the object to be measured switches the working mode and requires a larger displacement or a different output gradient, and has the functions of high temperature resistance and anti-electromagnetic interference.

[0005] The purpose of the present invention can be achieved through the following technical solutions: A linear variable differential transformer with variable output gradient comprises a high temperature resistant component, an adjustment component and an anti-interference component, wherein the high temperature resistant component is located outside the adjustment component and the anti-interference component is located at the right end of the adjustment component; The adjustment assembly includes an adjustment housing, a connecting rod, an iron core, a first coil and a second coil, wherein the first coil and the second coil are both detachably connected to the inside of the adjustment housing, the first coil is located on the left side of the second coil, and a frame is fixedly arranged inside the first coil and the second coil; The connecting rod is slidably connected to the inside of the frame, an external thread is provided on the right side of the connecting rod, a left threaded hole and a right threaded hole are respectively provided on the left and right ends of the iron core, and the right side of the connecting rod is threadedly connected to the left threaded hole.

[0006] Furthermore, a fixing screw is provided at the right end of the iron core, and the fixing screw and the right threaded hole are threadedly connected. A sealing ring is respectively provided at the left and right ends of the skeleton, and the two sealing rings are respectively located on the left side of the first coil and the right side of the second coil.

[0007] Furthermore, a front end cover is fixedly provided on the left end of the regulating housing, a rear end cover is fixedly provided on the right end of the regulating housing, and a connecting wire is fixedly provided on the right end of the second coil.

[0008] Furthermore, the high temperature resistant component includes a high temperature resistant shell, a first cooling pipe, a second cooling pipe, an air inlet pipe and an air outlet pipe. The first cooling pipe and the second cooling pipe are respectively located on the upper and lower sides of the interior of the high temperature resistant shell. The right ends of the first cooling pipe and the second cooling pipe can be detachably connected to the right end of the high temperature resistant shell. The air inlet pipe is located on the outside of the first cooling pipe, and the air outlet pipe is located on the outside of the second cooling pipe.

[0009] Furthermore, the regulating casing is fixedly connected to the interior of the high temperature resistant casing.

[0010] Furthermore, the air inlet pipe and the air outlet pipe are both in a spiral structure, and the left ends of the air inlet pipe and the air outlet pipe are connected through a connecting pipe.

[0011] Furthermore, an air inlet is fixedly provided at the right end of the air inlet pipe, and the air inlet is fixedly connected to the upper end of the high temperature resistant shell. An air outlet is fixedly provided at the right end of the air outlet pipe, and the air outlet is fixedly connected to the lower end of the high temperature resistant shell.

[0012] Further, a first connecting port is fixedly provided at the right end of the first cooling pipe, a first liquid inlet pipe is fixedly provided at the right end of the first connecting port, a second connecting port is fixedly provided at the right end of the second cooling pipe, and a second liquid inlet pipe is fixedly provided at the right end of the second connecting port; A distribution pipe is fixedly arranged between the first liquid inlet pipe and the second liquid inlet pipe, and the distribution pipe is respectively connected with the first liquid inlet pipe and the second liquid inlet pipe. A liquid inlet is fixedly arranged at the right end of the distribution pipe.

[0013] Furthermore, the anti-interference component includes a noise reduction shell, a noise reduction plate, an elastic electromagnetic shielding ring and an anti-interference plate, the anti-interference plate is fixedly connected to the left side of the noise reduction shell, the elastic electromagnetic shielding ring is located inside the noise reduction shell, the elastic electromagnetic shielding ring is located on the right side of the anti-interference plate, and the noise reduction plate is fixedly connected to the right side of the noise reduction shell.

[0014] Furthermore, a plurality of noise reduction holes are opened on the right side of the noise reduction plate, a first placement hole is opened on the noise reduction plate, a second placement hole is opened on the noise reduction shell, and the noise reduction shell is detachably connected to the right end of the rear end cover.

[0015] The beneficial effects of the present invention are: (1) By setting up the adjustment component, the technical effect that can be achieved is that the first coil and the second coil can be detachably connected to the inside of the adjustment housing, the first coil is located on the left side of the second coil, a frame is fixedly arranged inside the first coil and the second coil, a connecting rod is slidably connected to the inside of the frame, an external thread is opened on the right side of the connecting rod, a left threaded hole and a right threaded hole are opened on the left and right ends of the iron core respectively, the right side of the connecting rod is threadedly connected to the left threaded hole, a fixing screw is arranged on the right end of the iron core, the fixing screw and the right threaded hole are threadedly connected, a sealing ring is respectively sleeved on the left and right ends of the frame, and the two sealing rings are respectively located on the left side of the first coil and the right side of the second coil; When the object under test needs to switch the working mode, the working mode can be switched by moving the connecting rod and moving the iron core to the corresponding coil position. The adjustment component can solve the problem of frequently replacing the displacement sensor when the object under test switches the working mode and requires a larger displacement or a different output gradient.

[0016] (2) By setting up the high temperature resistant component, the technical effect that can be achieved is that the air outlet pipe, the first cooling pipe and the second cooling pipe are respectively located at the upper and lower sides of the interior of the high temperature resistant shell, the right ends of the first cooling pipe and the second cooling pipe can be detachably connected to the right end of the high temperature resistant shell, the air inlet pipe is located on the outside of the first cooling pipe, the air outlet pipe is located on the outside of the second cooling pipe, the air inlet pipe and the air outlet pipe are both spiral structures, and the left ends of the air inlet pipe and the air outlet pipe are connected through a connecting pipe; The air inlet is externally connected to the air transmission device, and the air outlet is externally connected to the exhaust device. The air transmission device inputs the cold air from the air inlet into the air inlet pipe, moves it to the air outlet pipe through the connecting pipe, and then discharges it from the exhaust device. The liquid inlet is externally connected to the coolant device, and the coolant enters the distribution pipe from the liquid inlet, and then enters the first cooling pipe and the second cooling pipe from the distribution pipe respectively to cool the transformer. The high temperature resistant component can cool the linear variable differential transformer to ensure that the linear variable differential transformer can effectively dissipate heat in a high temperature environment, avoid overheating, and thus cause damage to internal parts, so that the linear variable differential transformer can work normally under extremely high temperature conditions, and reduce equipment aging and failure rate caused by excessive temperature.

[0017] (3) By setting up the anti-interference component, the technical effect that can be achieved is that the anti-interference plate is fixedly connected to the left side of the noise reduction shell, the elastic electromagnetic shielding ring is located inside the noise reduction shell, the elastic electromagnetic shielding ring is located on the right side of the anti-interference plate, the noise reduction plate is fixedly connected to the right side of the noise reduction shell, a plurality of noise reduction holes are opened on the right side of the noise reduction plate, a first placement hole is opened on the noise reduction plate, a second placement hole is opened on the noise reduction shell, the connecting line is located inside the first placement hole and the second placement hole, the noise reduction shell is detachably connected to the right end of the rear end cover, the anti-interference component can suppress external electromagnetic interference, maintain a high quality during signal transmission, avoid signal distortion or errors caused by interference, improve the overall reliability of the equipment, and can also reduce noise pollution and prevent damage to the human body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 is a front cross-sectional view of the adjustment assembly of the present invention; Figure 3 for Figure 2 A partial enlarged view of middle A; Figure 4 It is a front cross-sectional view of the high temperature resistant component of the present invention; Figure 5 It is a right sectional view of the high temperature resistant component of the present invention; Figure 6 A front cross-sectional view of the first cooling tube and the second cooling tube in the present invention; Figure 7 is a front cross-sectional view of the anti-interference component of the present invention; Figure 8 It is a right side view of the noise reduction plate of the present invention; Fig. 9 It is a right sectional view of the anti-interference component in the present invention; Description of main component symbols: In the figure: 1, high temperature resistant component; 11, high temperature resistant housing; 12, air inlet pipe; 13, first cooling pipe; 14, air inlet; 15, distribution pipe; 16, liquid inlet; 17, air outlet; 18, air outlet pipe; 19, second cooling pipe; 110, connecting pipe; 111, first connecting port; 112, first liquid inlet pipe; 113, second connecting port; 114, second liquid inlet pipe; 2. Adjustment assembly; 21. Front cover; 22. Adjustment housing; 23. Frame; 24. First coil; 25. Second coil; 26. Connecting wire; 27. Rear cover; 28. Fixing screw; 29. ​​Iron core; 210. Connecting rod; 211. Sealing ring; 3. Anti-interference component; 31. Noise reduction shell; 32. Noise reduction plate; 33. Elastic electromagnetic shielding ring; 34. Anti-interference plate; 35. Noise reduction hole; 36. First placement hole; 37. Second placement hole. DETAILED DESCRIPTION

[0020] The technical solutions 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, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0021] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0023] Reference Figures 1 to 9 , a linear variable differential transformer with variable output gradient disclosed by the present invention, includes a high temperature resistant component 1, an adjustment component 2 and an anti-interference component 3, the high temperature resistant component 1 is located outside the adjustment component 2, and the anti-interference component 3 is located at the right end of the adjustment component 2.

[0024] The adjustment component 2 includes an adjustment housing 22, a connecting rod 210, an iron core 29, a first coil 24 and a second coil 25. The first coil 24 and the second coil 25 are both detachably connected to the inside of the adjustment housing 22. The first coil 24 is located on the left side of the second coil 25. A skeleton 23 is fixedly arranged inside the first coil 24 and the second coil 25.

[0025] The connecting rod 210 is slidably connected inside the frame 23. An external thread is provided on the right side of the connecting rod 210. A left threaded hole and a right threaded hole are provided on the left and right ends of the iron core 29 respectively. The right side of the connecting rod 210 is threadedly connected to the left threaded hole.

[0026] A fixing screw 28 is provided at the right end of the iron core 29, and the fixing screw 28 and the right threaded hole are threadedly connected. A sealing ring 211 is respectively sleeved on the left and right ends of the skeleton 23, and the two sealing rings 211 are respectively located on the left side of the first coil 24 and the right side of the second coil 25.

[0027] A front cover 21 is fixedly disposed on the left end of the adjusting housing 22, a rear cover 27 is fixedly disposed on the right end of the adjusting housing 22, and a connecting line 26 is fixedly disposed on the right end of the second coil 25. The adjusting assembly 2 can solve the problem of frequently replacing the displacement sensor when the measured object switches the working mode and requires a larger displacement or a different output gradient.

[0028] The high temperature resistant component 1 includes a high temperature resistant shell 11, a first cooling pipe 13, a second cooling pipe 19, an air intake pipe 12 and an air outlet pipe 18. The first cooling pipe 13 and the second cooling pipe 19 are respectively located on the upper and lower sides of the interior of the high temperature resistant shell 11. The right ends of the first cooling pipe 13 and the second cooling pipe 19 can be detachably connected to the right end of the high temperature resistant shell 11. The air intake pipe 12 is located on the outside of the first cooling pipe 13, and the air outlet pipe 18 is located on the outside of the second cooling pipe 19.

[0029] The regulating housing 22 is fixedly connected to the interior of the high temperature resistant housing 11. The air inlet pipe 12 and the air outlet pipe 18 are both spiral structures, and the left ends of the air inlet pipe 12 and the air outlet pipe 18 are connected through a connecting pipe 110.

[0030] An air inlet 14 is fixedly provided at the right end of the air inlet pipe 12 , and the air inlet 14 is fixedly connected to the upper end of the high temperature resistant shell 11 . An air outlet 17 is fixedly provided at the right end of the air outlet pipe 18 , and the air outlet 17 is fixedly connected to the lower end of the high temperature resistant shell 11 .

[0031] A first connecting port 111 is fixedly provided at the right end of the first cooling pipe 13 , a first liquid inlet pipe 112 is fixedly provided at the right end of the first connecting port 111 , a second connecting port 113 is fixedly provided at the right end of the second cooling pipe 19 , a second liquid inlet pipe 114 is fixedly provided at the right end of the second connecting port 113 .

[0032] A distribution pipe 15 is fixedly disposed between the first liquid inlet pipe 112 and the second liquid inlet pipe 114 . The distribution pipe 15 is respectively connected to the first liquid inlet pipe 112 and the second liquid inlet pipe 114 . A liquid inlet port 16 is fixedly disposed at the right end of the distribution pipe 15 .

[0033] The high temperature resistant component 1 can cool down the linear variable differential transformer, ensuring that the linear variable differential transformer can effectively dissipate heat in a high temperature environment, avoiding overheating, which may cause damage to internal parts, and enabling the linear variable differential transformer to work normally under extreme high temperature conditions, thereby reducing equipment aging and failure rate caused by excessive temperature.

[0034] The anti-interference component 3 includes a noise reduction shell 31, a noise reduction plate 32, an elastic electromagnetic shielding ring 33 and an anti-interference plate 34. The anti-interference plate 34 is fixedly connected to the left side of the noise reduction shell 31, the elastic electromagnetic shielding ring 33 is located inside the noise reduction shell 31, the elastic electromagnetic shielding ring 33 is located on the right side of the anti-interference plate 34, the noise reduction plate 32 is fixedly connected to the right side of the noise reduction shell 31, and the elastic electromagnetic shielding ring 33 and the anti-interference plate 34 are used to shield external electromagnetic interference.

[0035] A plurality of noise reduction holes 35 are provided on the right side of the noise reduction plate 32, a first placement hole 36 is provided on the noise reduction plate 32, a second placement hole 37 is provided on the noise reduction shell 31, the connecting wire 26 is located inside the first placement hole 36 and the second placement hole 37, the noise reduction shell 31 is detachably connected to the right end of the rear end cover 27, and the noise reduction plate 32 is used to perform noise reduction on the transformer.

[0036] The anti-interference component 3 can suppress external electromagnetic interference, maintain high quality during signal transmission, avoid signal distortion or errors caused by interference, improve the overall reliability of the equipment, and reduce noise pollution to prevent damage to the human body.

[0037] The working principle and use process of the present invention: When the object to be measured needs to switch the working mode, it is only necessary to move the connecting rod 210 and move the iron core 29 to the corresponding coil position to realize the switching of the working mode; The air inlet 14 is externally connected to the air delivery device, and the air outlet 17 is externally connected to the exhaust device. The air delivery device inputs the cold air from the air inlet 14 into the air inlet pipe 12, moves it to the air outlet pipe 18 through the connecting pipe 110, and then exhausts it from the exhaust device; The liquid inlet 16 is externally connected to a cooling liquid device, and the cooling liquid enters the distribution pipe 15 from the liquid inlet 16, and then enters the first cooling pipe 13 and the second cooling pipe 19 from the distribution pipe 15 respectively, so as to cool the transformer.

[0038] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A linear variable differential transformer with variable output gradient, characterized in that: It comprises a high temperature resistance component (1), an adjustment component (2) and an anti-interference component (3), wherein the high temperature resistance component (1) is located outside the adjustment component (2), and the anti-interference component (3) is located at the right end of the adjustment component (2); The regulating assembly (2) comprises an regulating housing (22), a connecting rod (210), an iron core (29), a first coil (24) and a second coil (25); the first coil (24) and the second coil (25) are both detachably connected to the inside of the regulating housing (22); the first coil (24) is located on the left side of the second coil (25); and a frame (23) is fixedly arranged inside the first coil (24) and the second coil (25); The connecting rod (210) is slidably connected to the inside of the frame (23), an external thread is provided on the right side of the connecting rod (210), a left threaded hole and a right threaded hole are provided on the left and right ends of the iron core (29), and the right side of the connecting rod (210) is threadedly connected to the left threaded hole.

2. The linear variable differential transformer with variable output gradient according to claim 1, characterized in that: A fixing screw (28) is provided at the right end of the iron core (29), and the fixing screw (28) and the right threaded hole are threadedly connected. A sealing ring (211) is respectively sleeved on the left and right ends of the frame (23), and the two sealing rings (211) are respectively located on the left side of the first coil (24) and the right side of the second coil (25).

3. The linear variable differential transformer with variable output gradient according to claim 2, characterized in that: A front end cover (21) is fixedly arranged on the left end of the regulating housing (22), a rear end cover (27) is fixedly arranged on the right end of the regulating housing (22), and a connecting wire (26) is fixedly arranged on the right end of the second coil (25).

4. The linear variable differential transformer with variable output gradient according to claim 1, characterized in that: The high temperature resistant component (1) comprises a high temperature resistant shell (11), a first cooling pipe (13), a second cooling pipe (19), an air intake pipe (12) and an air outlet pipe (18); the first cooling pipe (13) and the second cooling pipe (19) are respectively located at the upper and lower sides of the interior of the high temperature resistant shell (11); the right ends of the first cooling pipe (13) and the second cooling pipe (19) can be detachably connected to the right end of the high temperature resistant shell (11); the air intake pipe (12) is located on the outside of the first cooling pipe (13); and the air outlet pipe (18) is located on the outside of the second cooling pipe (19).

5. The linear variable differential transformer with variable output gradient according to claim 4, characterized in that: The regulating housing (22) is fixedly connected to the interior of the high temperature resistant housing (11).

6. The linear variable differential transformer with variable output gradient according to claim 4, characterized in that: The air inlet pipe (12) and the air outlet pipe (18) are both spiral structures, and the left ends of the air inlet pipe (12) and the air outlet pipe (18) are connected via a connecting pipe (110).

7. The linear variable differential transformer with variable output gradient according to claim 6, characterized in that: An air inlet (14) is fixedly provided at the right end of the air inlet pipe (12), and the air inlet (14) is fixedly connected to the upper end of the high temperature resistant shell (11); an air outlet (17) is fixedly provided at the right end of the air outlet pipe (18), and the air outlet (17) is fixedly connected to the lower end of the high temperature resistant shell (11).

8. The linear variable differential transformer with variable output gradient according to claim 4, characterized in that: A first connecting port (111) is fixedly provided at the right end of the first cooling pipe (13), a first liquid inlet pipe (112) is fixedly provided at the right end of the first connecting port (111), a second connecting port (113) is fixedly provided at the right end of the second cooling pipe (19), and a second liquid inlet pipe (114) is fixedly provided at the right end of the second connecting port (113); A distribution pipe (15) is fixedly arranged between the first liquid inlet pipe (112) and the second liquid inlet pipe (114); the distribution pipe (15) is respectively connected to the first liquid inlet pipe (112) and the second liquid inlet pipe (114); and a liquid inlet port (16) is fixedly arranged at the right end of the distribution pipe (15).

9. The linear variable differential transformer with variable output gradient according to claim 1, characterized in that: The anti-interference component (3) comprises a noise reduction shell (31), a noise reduction plate (32), an elastic electromagnetic shielding ring (33) and an anti-interference plate (34); the anti-interference plate (34) is fixedly connected to the left side of the noise reduction shell (31); the elastic electromagnetic shielding ring (33) is located inside the noise reduction shell (31); the elastic electromagnetic shielding ring (33) is located on the right side of the anti-interference plate (34); and the noise reduction plate (32) is fixedly connected to the right side of the noise reduction shell (31).

10. The linear variable differential transformer with variable output gradient according to claim 9, characterized in that: A plurality of noise reduction holes (35) are provided on the right side of the noise reduction plate (32), a first placement hole (36) is provided on the noise reduction plate (32), a second placement hole (37) is provided on the noise reduction shell (31), and the noise reduction shell (31) is detachably connected to the right end of the rear end cover (27).

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