阅读说明：本技术 一种温度传感器的位移输出调整装置 (Displacement output adjusting device of temperature sensor ) 是由 朱岩 庞泽文 王琦桢 高玉和 于 2019-09-03 设计创作，主要内容包括：本发明属于本发明属于航空发动机燃油附件技术领域,涉及一种温度传感器的位移输出调整装置,包含：温度传感器(1)、销轴(2)、调节螺钉(3)、上杠杆(4)、下杠杆(5)、微调塞盖(10)、调节螺母(11),温度传感器(1)通过螺纹连接在微调塞盖(10)上,使用调节螺母(11)进行定位；温度传感器(1)与微调塞盖(10)不共轴线；温度传感器(1)下端带有温度感受装置,通过感受温度变化改变其自身长度,对上杠杆(4)输出位移；上杠杆(4)、下杠杆(5)围绕销轴(2)转动,通过调节螺钉(3)对上杠杆(4)和下杠杆(5)进行连接定位；所述装置通过下杠杆(5)的位移输出端输出温度补偿位移,实现快速精准调节。(The invention belongs to the technical field of fuel accessories of aircraft engines, and relates to a displacement output adjusting device of a temperature sensor, which comprises: the temperature sensor (1), the pin shaft (2), the adjusting screw (3), the upper lever (4), the lower lever (5), the fine adjustment plug cover (10) and the adjusting nut (11), wherein the temperature sensor (1) is connected to the fine adjustment plug cover (10) through threads and is positioned by the adjusting nut (11); the temperature sensor (1) and the fine adjustment plug cover (10) are not coaxial; the lower end of the temperature sensor (1) is provided with a temperature sensing device, the length of the temperature sensor is changed by sensing temperature change, and displacement is output to the upper lever (4); the upper lever (4) and the lower lever (5) rotate around the pin shaft (2), and the upper lever (4) and the lower lever (5) are connected and positioned through the adjusting screw (3); the device outputs temperature compensation displacement through the displacement output end of the lower lever (5), and quick and accurate adjustment is achieved.)

1. A displacement output adjusting device of a temperature sensor is characterized in that: the displacement output adjusting device comprises: the temperature sensor (1), the pin shaft (2), the adjusting screw (3), the upper lever (4), the lower lever (5), the shell (6), the fine adjustment plug cover (10), the adjusting nut (11) and the plug (12);

the fine adjustment plug cover (10) is a revolving body which rotates along the central axis of the plug cover; the end face of the fine adjustment plug cover is provided with a threaded hole, and the central axis of the threaded hole is not coincident with the central axis of the fine adjustment plug cover (10);

the upper end of the temperature sensor (1) is provided with threads and is connected with the threaded hole of the fine adjustment plug cover (10); is fastened through an adjusting nut (11);

the middle parts of the upper lever (4) and the lower lever (5) are both arranged on the pin shaft (2), and the pin shaft (2) is taken as a fulcrum; one end of the two is connected through a distance fine-tuning component; the upper surface of the other end of the upper lever (4) is contacted with the temperature sensor (1); the lower surface of the lower lever (5) is provided with a displacement output end;

the pin shaft (2), the fine adjustment plug cover (10) and the plug (12) are fixed on the shell (6);

the upper lever (4) is provided with a through hole, and the lower lever (5) is provided with a threaded hole; the adjusting screw (3) passes through the through hole of the upper lever (4) and is connected with the threaded hole of the lower lever (5).

2. The displacement output adjustment device of a temperature sensor according to claim 1, characterized in that: the distance fine adjustment component is realized by an adjusting screw (3) and a first spring (7); the first spring (7) is sleeved on the adjusting screw (3), is positioned between the upper lever (4) and the lower lever (5) and is in a compressed state.

3. The displacement output adjustment device of a temperature sensor according to claim 1, characterized in that: the distance fine adjustment component is realized by an adjusting screw (3) and a torsion spring (8); the torsion spring (8) is sleeved on the pin shaft (2) and clamped between the upper lever (4) and the lower lever (5) so that one end of the adjusting screw (3) is installed and kept in a separated state.

4. The displacement output adjustment device of a temperature sensor according to claim 1, characterized in that: the distance fine adjustment component is realized by an adjusting screw (3) and a second spring (9); the second spring (9) is sleeved on the displacement output end of the lower lever (5), one end of the second spring is in contact with the lower lever (5), and the other end of the second spring is fixed on the shell (6) and is in a compressed state.

5. The displacement output adjustment device of a temperature sensor according to any one of claims 1 to 4, characterized in that: the upper lever (4) is provided with a connecting lug for the pin shaft (2) to pass through.

6. The displacement output adjustment device of a temperature sensor according to any one of claims 1 to 4, characterized in that: the lower lever (5) is provided with a connecting lug for the pin shaft (2) to pass through.

7. The displacement output adjustment device of a temperature sensor according to any one of claims 1 to 4, characterized in that: the shell (6) is made of aluminum alloy.

8. The displacement output adjustment device of a temperature sensor according to any one of claims 1 to 4, characterized in that: the upper lever (4) and the lower lever (5) are made of steel.

Technical Field

The invention belongs to the field of fuel accessories of aero-engines, relates to the fuel control technology of aero-engines, and particularly relates to a displacement output adjusting device of a temperature sensor.

Background

The fuel regulator controls the fuel supply amount by sensing typical working parameters such as rotating speed, pressure and the like. Temperature changes can cause fuel density changes to affect mass flow. Usually, a temperature sensor is adopted to sense the temperature change of the fuel, and the volume flow of the fuel of the metering valve is changed through a temperature compensation function, so that the mass flow of the fuel is basically unchanged. The direct output displacement adjustable precision of the existing temperature sensor is lower, so that the temperature compensation precision is lower.

Disclosure of Invention

The purpose of the invention is: the displacement output adjusting device of the temperature sensor solves the technical problem of low adjustable precision of the temperature sensor through rough adjustment, fine adjustment and fine adjustment.

In order to solve the technical problem, the technical scheme of the invention is as follows:

a displacement output adjustment device of a temperature sensor, comprising: the temperature sensor comprises a temperature sensor 1, a pin shaft 2, an adjusting screw 3, an upper lever 4, a lower lever 5, a shell 6, a first spring 7, a torsion spring 8, a second spring 9, a fine adjusting plug cover 10, an adjusting nut 11 and a plug 12;

the fine adjustment plug cover 10 is a revolving body which rotates along the central axis of the plug cover; the end face of the plug is provided with a threaded hole, and the central axis of the threaded hole is not coincident with the central axis of the fine adjustment plug cover 10;

the upper end of the temperature sensor 1 is provided with threads and is connected with the threaded hole of the fine adjustment plug cover 10; fastening by an adjusting nut 11;

the middle parts of the upper lever 4 and the lower lever 5 are both arranged on the pin shaft 2, and the pin shaft 2 is taken as a fulcrum; one end of the two is connected through a distance fine-tuning component; the upper surface of the other end of the upper lever 4 is contacted with the temperature sensor 1; the lower surface of the lower lever 5 is provided with a displacement output end;

the pin shaft 2, the fine adjustment plug cover 10 and the plug 12 are fixed on the shell 6;

the upper lever 4 is provided with a through hole, and the lower lever 5 is provided with a threaded hole; the adjusting screw 3 passes through the through hole of the upper lever 4 to be connected with the lower lever 5.

In one implementation, the distance fine-tuning means is realized by the adjusting screw 3 and the first spring 7; the first spring 7 is sleeved on the adjusting screw 3 and is positioned between the upper lever 4 and the lower lever 5 in a compressed state.

In another implementation, the distance fine-tuning component is realized by an adjusting screw 3 and a torsion spring 8; the torsion spring 8 is a torsion spring, is sleeved on the pin shaft 2 and is clamped between the upper lever 4 and the lower lever 5, so that one end of the adjusting screw 3 is kept in a separated state.

In a third implementation manner, the distance fine-tuning component is realized by the adjusting screw 3 and the second spring 9; the second spring 9 is sleeved on the displacement output end of the lower lever 5, one end of the second spring is in contact with the lower lever 5, and the other end of the second spring is fixed on the shell 6 and is in a compressed state.

The upper lever 4 or the lower lever 5 is provided with a connecting lug for the pin shaft 2 to pass through.

Preferably, the shell 6 is made of aluminum alloy.

Preferably, the upper lever 4 and the lower lever 5 are made of steel.

The invention has the beneficial effects that: compared with the current direct output device of the temperature sensor, the displacement output adjusting device of the temperature sensor has the following advantages:

1. the volume is small, the structure is simple, and the compensation precision of the temperature sensor can be effectively improved;

2. and the quick and accurate adjustment can be realized in actual operation.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the embodiment of the present invention will be briefly explained. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be obtained from these drawings without inventive effort.

FIG. 1 is a schematic block diagram of one implementation of the present invention;

FIG. 2 is a schematic block diagram of another implementation of the present invention;

FIG. 3 is a schematic block diagram of another implementation of the present invention;

FIG. 4 is a top view of the fine adjustment plug cover;

FIG. 5 is a cross-sectional view of a fine adjustment plug cover;

wherein, the temperature sensor 1, the pin shaft 2, the adjusting screw 3, the upper lever 4, the lower lever 5, the shell 6, the first spring 7, the torsion spring 8, the second spring 9, the fine adjusting plug cover 10, the adjusting nut 11 and the plug 12 are arranged in the shell.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Features of various aspects of embodiments of the invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without these specific details. The following description of the embodiments is merely intended to better understand the present invention by illustrating examples thereof. The present invention is not limited to any particular arrangement or method provided below, but rather covers all product structures, any modifications, alterations, etc. of the method covered without departing from the spirit of the invention.

In the drawings and the following description, well-known structures and techniques are not shown to avoid unnecessarily obscuring the present invention.

As shown in fig. 1, the displacement output adjusting device of the temperature sensor according to the present invention comprises: the temperature sensor comprises a temperature sensor 1, a pin shaft 2, an adjusting screw 3, an upper lever 4, a lower lever 5, a shell 6, a fine adjusting plug cover 10, an adjusting nut 11, a plug 12, a first spring 7 or a torsion spring 8 or a second spring 9;

wherein, temperature sensor 1 upper end has the screw thread, through threaded connection on fine setting gag 10, uses adjusting nut 11 to fix a position. As shown in fig. 4, the temperature sensor 1 is not coaxial with the vernier plug 10. The lower end of the temperature sensor 1 is provided with a temperature sensing device, and the temperature sensing device changes the length thereof by sensing temperature change and outputs displacement to the upper lever 4. The upper lever 4 and the lower lever 5 are both arranged on the pin shaft 2 and rotate around the pin shaft 2. The upper lever 4 is provided with a through hole, the lower lever 5 is provided with a threaded hole, and the upper lever 4 and the lower lever 5 are connected and positioned through a distance fine adjustment component. The device outputs temperature compensation displacement through the displacement output end of the lower lever 5.

The distance fine-tuning component has the following implementation modes:

as shown in fig. 1, the distance fine-tuning means is realized by an adjusting screw 3 and a first spring 7; the first spring 7 is sleeved on the adjusting screw 3 and is positioned between the upper lever 4 and the lower lever 5 in a compressed state.

As shown in fig. 2, the distance fine-tuning means is realized by an adjusting screw 3 and a torsion spring 8; the torsion spring 8 is a torsion spring, is sleeved on the pin shaft 2 and is clamped between the upper lever 4 and the lower lever 5, so that one end of the adjusting screw 3 is kept in a separated state.

As shown in fig. 3, the distance fine-tuning means is realized by the adjusting screw 3 and the second spring 9; the second spring 9 is sleeved on the displacement output end of the lower lever 5, one end of the second spring is in contact with the lower lever 5, and the other end of the second spring is fixed on the shell 6 and is in a compressed state.

The adjusting process of the displacement output adjusting device of the temperature sensor is as follows:

the temperature sensor 1 is initially positioned by the adjusting nut 11, and the coarse adjustment step is completed.

The relative positions of the upper lever 4 and the lower lever 5 are changed through the adjusting screw 3, the position of the displacement output end on the lower lever 5 is accurately positioned, and the fine adjustment step is completed. As shown in fig. 4 and 5, the temperature sensor 1 and the fine adjustment plug cover 10 are not coaxial, the central axis of the threaded hole is not coincident with the central axis of the fine adjustment plug cover 10, when the fine adjustment plug cover 10 moves around its own axis, the temperature sensor 1 generates a certain displacement relative to the upper lever 4, and finally, the position of the displacement output end of the device is accurately positioned, and the fine adjustment step is completed.

The width of the upper surface of the upper lever 4 is set according to the eccentric amount of the fine adjustment plug cover 10. Determined according to experimental requirements.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present invention, and these modifications or substitutions should be covered within the scope of the present invention. As in the embodiment, the distance fine-tuning member may be implemented by a caliper and a spring, the caliper and the spring are installed at the end of the upper lever 4 and the lower lever 5 having the through hole, and the caliper is fixed to the housing.