A brake actuator high-low temperature environment test device and test method

Abstract

The application provides a brake actuator high-low temperature environment test device and test method, and relates to the technical field of brake test. The device comprises: a high-low temperature box, a side wall of the high-low temperature box is provided with an equipment hole; a cylinder, the cylinder penetrates through the equipment hole, one end of the cylinder is arranged in the interior of the high-low temperature box and can be connected with a brake actuator, the other end of the cylinder is arranged outside the high-low temperature box and is connected with a force sensor; a push rod, the push rod is movably connected in the cylinder, one end of the push rod is connected with a touch part of the force sensor, the other end of the push rod can contact an output part of the brake actuator. Since the brake actuator and the force sensor are arranged inside and outside the high-low temperature box respectively, when the brake actuator is subjected to high-low temperature test, the force sensor is located outside the high-low temperature box, so that the force sensor is prevented from being affected by the environmental temperature, and the detection precision of the output pressure of the brake actuator under the high-low temperature environment is ensured.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of brake test, more particularly, relates to a brake actuator high-low temperature environment test device and test method. BACKGROUND

[0002] The brake actuator is a device for providing braking force for an aircraft or a vehicle. The traditional high-low temperature environment test device is to install a standard force sensor on the output end of the brake actuator, and the standard force sensor is placed in the high-low temperature box together with the brake actuator to perform high-low temperature environment test. However, the standard force sensor will drift in the high-low temperature environment, which will affect the system accuracy and cannot meet the requirement of accurate measurement of the output pressure of the brake actuator in the high-low temperature environment. SUMMARY

[0003] The present application aims to provide a brake actuator high-low temperature environment test device and test method to solve the problem that the traditional high-low temperature environment test device is to install a standard force sensor on the output end of the brake actuator, and the standard force sensor is placed in the high-low temperature box together with the brake actuator to perform high-low temperature environment test, but the standard force sensor will drift in the high-low temperature environment, which will affect the system accuracy and cannot meet the requirement of accurate measurement of the output pressure of the brake actuator in the high-low temperature environment.

[0004] In order to achieve the above-mentioned purpose, the present application provides a brake actuator high-low temperature environment test device, which comprises:

[0005] A high-low temperature box, a side wall of the high-low temperature box is provided with an equipment hole;

[0006] A cylinder, the cylinder penetrates through the equipment hole, one end of the cylinder is arranged in the interior of the high-low temperature box and can be connected with the brake actuator, and the other end of the cylinder is arranged outside the high-low temperature box and is connected with a force sensor;

[0007] A push rod, the push rod is movably connected in the cylinder, one end of the push rod is connected with a touch part of the force sensor, and the other end of the push rod can be in contact with an output part of the brake actuator.

[0008] Preferably, a left cylinder holder and a right cylinder holder are further included, an outer thread wall is arranged on the outer periphery of the cylinder, the left cylinder holder and the right cylinder holder are both provided with a first threaded hole, the left cylinder holder is arranged in the interior of the high-low temperature box and is threadedly connected on the cylinder, the right cylinder holder is arranged outside the high-low temperature box and is threadedly connected on the cylinder, and the left cylinder holder and the right cylinder holder can be respectively abutted on the inner and outer side walls of the high-low temperature box.

[0009] Preferably, a brake actuator fixing seat is further included, one end of the brake actuator fixing seat is provided with a mounting interface, the other end is provided with a second threaded hole in communication with the mounting interface, the brake actuator fixing seat is arranged in the interior of the high-low temperature box and is screwed on one end of the cylinder body, and the output part of the brake actuator is connected in the mounting interface.

[0010] Preferably, a support seat is further included, one end of the support seat is connected on the other end of the cylinder body, and the force sensor is connected on the support seat.

[0011] Preferably, the left cylinder body clamping seat and the right cylinder body clamping seat are both concave, the first threaded holes are respectively arranged on the concave surfaces of the left cylinder body clamping seat and the right cylinder body clamping seat, and the concave surface of the left cylinder body clamping seat is arranged opposite to the concave surface of the right cylinder body clamping seat.

[0012] Preferably, the inner diameter of the second threaded hole is larger than the inner diameter of the mounting interface, and the inner diameter of the cylinder body is also larger than the inner diameter of the mounting interface.

[0013] Preferably, a gap is arranged between the outer side wall of the push rod and the inner side wall of the cylinder body.

[0014] Preferably, the support seat includes an end plate and a support block, the end plate is integrally connected on one end of the support block, the end plate is provided with a third threaded hole, the end plate is screwed on the other end of the cylinder body, and the force sensor is connected on the inner side of the support block.

[0015] Preferably, a force sensor fixing seat is further included, the force sensor fixing seat is connected on the inner side of the support block, and the force sensor is connected on the side of the force sensor fixing seat facing the third threaded hole.

[0016] A brake actuator high-low temperature environment test method, which utilizes the brake actuator high-low temperature environment test device, the method comprises:

[0017] The two ends of the cylinder body are arranged in the interior and the exterior of the high-low temperature box respectively;

[0018] The push rod is arranged through the cylinder body;

[0019] The force sensor is connected on one end of the cylinder body located outside the high-low temperature box, and the actuating part of the force sensor is connected with one end of the push rod;

[0020] The brake actuator is connected on the other end of the cylinder body located inside the high-low temperature box, and the output part of the brake actuator is connected with one end of the push rod;

[0021] Adjusting the position of the brake actuator relative to the cylinder, testing the output pressure of the brake actuator.

[0022] The brake actuator high-low temperature environment test device and test method have the beneficial effects that the push rod is movably connected in the cylinder, one end of the push rod is connected with the triggering part of the force sensor, the other end of the push rod can contact the output part of the brake actuator, and then when the output part of the brake actuator moves, the push rod can transmit the pushing force to the force sensor, so that the pushing force output by the output part of the brake actuator can be directly tested, and since one end of the cylinder is arranged in the inside of the high-low temperature box and the other end of the cylinder is arranged outside the high-low temperature box, the brake actuator and the force sensor can be arranged in the inside and outside of the high-low temperature box respectively, so that when the brake actuator is subjected to the high-low temperature test, the force sensor is located outside the high-low temperature box, the force sensor is prevented from being affected by the environmental temperature, and the detection precision of the output pressure of the brake actuator under the high-low temperature environment is ensured.

[0023] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0024] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which like reference characters refer to like parts throughout the figures, and in which:

[0025] Figure 1 Fig. 1 shows a front and sectional structure schematic diagram of a brake actuator high-low temperature environment test device according to Embodiment 1 of the present application;

[0026] Figure 2 Fig. 2 shows a brake actuator fixing seat structure schematic diagram of the brake actuator high-low temperature environment test device according to Embodiment 1 of the present application;

[0027] Figure 3 Fig. 3 shows a cylinder structure schematic diagram of the brake actuator high-low temperature environment test device according to Embodiment 1 of the present application;

[0028] Figure 4 Fig. 4 shows a left cylinder clamping seat structure schematic diagram of the brake actuator high-low temperature environment test device according to Embodiment 1 of the present application;

[0029] Figure 5 Fig. 5 shows a support seat structure schematic diagram of the brake actuator high-low temperature environment test device according to Embodiment 1 of the present application;

[0030] Figure 6Fig. 1 shows a schematic diagram of a force sensor fixing seat structure of a brake actuator high and low temperature environment test device according to Embodiment 1 of the present application;

[0031] Figure 7 Fig. 2 shows a schematic diagram of a force sensor fixing seat structure of a brake actuator high and low temperature environment test device according to Embodiment 2 of the present application.

[0032] Legend of reference signs:

[0033] 1, high and low temperature chamber; 2, brake actuator; 3, brake actuator fixing seat; 4, cylinder; 5, push rod; 6, left cylinder clamping seat; 7, right cylinder clamping seat; 8, support seat; 9, force sensor; 10, force sensor fixing seat. DETAILED DESCRIPTION

[0034] The preferred embodiments of the present application will be described in more detail below. Although the preferred embodiments of the present application are described below, it is understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present application will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0035] Embodiment 1

[0036] As shown in Figure 1 , the present application provides a brake actuator high and low temperature environment test device, which comprises:

[0037] a high and low temperature chamber 1, a side wall of the high and low temperature chamber 1 is provided with an equipment hole;

[0038] a cylinder 4, the cylinder 4 penetrates through the equipment hole, one end of the cylinder 4 is arranged inside the high and low temperature chamber 1 and can be connected with the brake actuator 2, the other end of the cylinder 4 is arranged outside the high and low temperature chamber 1 and is connected with the force sensor 9;

[0039] a push rod 5, the push rod 5 is movably connected in the cylinder 4, one end of the push rod 5 is connected with a triggering part of the force sensor 9, the other end of the push rod 5 can be in contact with an output part of the brake actuator 2.

[0040] Specifically, in order to solve the problem that the output end of the brake actuator is installed with a standard force sensor in the prior art, the standard force sensor is placed in the high-low temperature chamber together with the brake actuator to perform high-low temperature environment test, but the standard force sensor will drift in the high-low temperature environment, which affects the system accuracy and cannot meet the requirement of accurately measuring the output pressure of the brake actuator in the high-low temperature environment; the brake actuator high-low temperature environment test device is provided, the push rod 5 is movably connected in the cylinder body 4, one end of the push rod 5 is connected with the actuating part of the force sensor 9, the other end of the push rod 5 can contact with the output part of the brake actuator 2, and then when the output part of the brake actuator 2 moves, the push rod 5 can transmit the pushing force to the force sensor 9, so that the pushing force output by the output part of the brake actuator 2 can be directly tested, and at the same time, since one end of the cylinder body 4 is arranged in the inside of the high-low temperature chamber 1 and the other end of the cylinder body 4 is arranged outside the high-low temperature chamber 1, the brake actuator 2 and the force sensor 9 can be arranged in the inside and outside of the high-low temperature chamber 1 respectively, so that when the brake actuator 2 performs high-low temperature test, the force sensor 9 is located outside the high-low temperature chamber 1, the force sensor 9 is prevented from being affected by the environmental temperature, and the detection accuracy of the output pressure of the brake actuator 2 in the high-low temperature environment is ensured.

[0041] As shown in Figure 3 Preferably, the left cylinder seat 6 and the right cylinder seat 7 are further included, the outer periphery of the cylinder body 4 is provided with an outer threaded wall, the left cylinder seat 6 and the right cylinder seat 7 are both provided with first threaded holes, the left cylinder seat 6 is arranged in the inside of the high-low temperature chamber 1 and is threadedly connected to the cylinder body 4, the right cylinder seat 7 is arranged outside the high-low temperature chamber 1 and is threadedly connected to the cylinder body 4, and the left cylinder seat 6 and the right cylinder seat 7 can abut against the inner and outer side walls of the high-low temperature chamber 1 respectively.

[0042] Specifically, when the cylinder body 4 penetrates the equipment hole and needs to be limited to move, the left cylinder seat 6 and the right cylinder seat 7 can be screwed towards each other until the left cylinder seat 6 and the right cylinder seat 7 abut against the inner and outer side walls of the high-low temperature chamber 1 respectively, and then the screwing is stopped, at this time, the left cylinder seat 6 and the right cylinder seat 7 are clamped to the side wall of the high-low temperature chamber 1, and then the movement of the cylinder body 4 can be limited.

[0043] Preferably, one end of the push rod 5 is provided with an end outer thread, and the one end of the push rod 5 is threadedly connected to the actuating part of the force sensor 9.

[0044] Specifically, the actuating part of the existing force sensor 9 is provided with an inner threaded mounting hole.

[0045] Preferably, the outer periphery of the cylinder body 4 is provided with an installation annular surface, the installation annular surface divides the outer threaded wall into two parts and is threadedly connected to the left cylinder seat 6 and the right cylinder seat 7 respectively.

[0046] Specifically, the mounting ring surface can be arranged at the equipment hole position to position the position of the cylinder body 4.

[0047] As shown in Figure 2 Preferably, the brake actuator fixing seat 3 is further provided, one end of the brake actuator fixing seat 3 is provided with a mounting interface, the other end is provided with a second threaded hole in communication with the mounting interface, the brake actuator fixing seat 3 is arranged inside the high-low temperature box and is screwed on one end of the cylinder body 4, and the output part of the brake actuator 2 is connected in the mounting interface.

[0048] Specifically, the brake actuator fixing seat 3 is used to mount the brake actuator 2 on the cylinder body 4.

[0049] Preferably, the support seat 8 is further provided, one end of the support seat 8 is connected to the other end of the cylinder body 4, and the force sensor 2 is connected to the support seat 8.

[0050] Specifically, the support seat 8 is used to mount the force sensor 2 outside the high-low temperature box 1.

[0051] As shown in Figure 4 Preferably, the left cylinder body clamping seat 6 and the right cylinder body clamping seat 7 are both concave, two first threaded holes are respectively arranged on the concave surface of the left cylinder body clamping seat 6 and the concave surface of the right cylinder body clamping seat 7, and the concave surface of the left cylinder body clamping seat 6 is arranged opposite to the concave surface of the right cylinder body clamping seat 7.

[0052] Specifically, the concave design expands the operation ring surface of the left cylinder body clamping seat 6 and the right cylinder body clamping seat 7, which facilitates the screwing of the left cylinder body clamping seat 6 and the right cylinder body clamping seat 7 through the operation ring surface, and also enables the relative clamping surfaces of the left cylinder body clamping seat 6 and the right cylinder body clamping seat 7 to avoid the equipment hole, so that the left cylinder body clamping seat 6 and the right cylinder body clamping seat 7 are respectively completely attached to the inner and outer side walls of the high-low temperature box 1, and the stability during clamping is improved.

[0053] Preferably, the inner diameter of the second threaded hole is larger than the inner diameter of the mounting interface, and the inner diameter of the cylinder body 4 is also larger than the inner diameter of the mounting interface.

[0054] Specifically, the movement of the output part of the brake actuator 2 is avoided by the one end of the cylinder body 4.

[0055] Preferably, a gap is provided between the outer side wall of the push rod 5 and the inner side wall of the cylinder body 4.

[0056] Specifically, the frictional resistance between the push rod 5 and the cylinder body 4 is avoided, and the detection accuracy of the output pressure of the brake actuator 2 is reduced.

[0057] As shown in Figure 5As shown, preferably, the support base 8 comprises an end plate and a support block, the end plate is integrally connected to one end of the support block, the third threaded hole is arranged on the end plate, the end plate is threadedly connected to the other end of the cylinder body 4, and the force sensor 9 is connected to the inner side of the support block.

[0058] Specifically, the end plate is used for threadedly connecting with the cylinder body 4, and the support block is used for supporting the force sensor 9.

[0059] As shown in the drawings, Figure 6 As shown, preferably, the force sensor fixing base 10 is connected to the inner side of the support block, and the force sensor 9 is connected to the side of the force sensor fixing base 10 facing the third threaded hole.

[0060] Specifically, the force sensor fixing base 10 is used for mounting the force sensor 9 at a position facing the third threaded hole, so as to facilitate the connection of the force sensor 9 with the push rod 5.

[0061] Preferably, the inner side of the second threaded hole is provided with a groove.

[0062] Specifically, it is avoided that one end of the cylinder body 4 cannot abut against the end of the inner side of the second threaded hole.

[0063] Embodiment 2

[0064] As shown in the drawings, Figure 7 The present application provides a brake actuator high-low temperature environment test method, which utilizes the brake actuator high-low temperature environment test device, and the method comprises the following steps:

[0065] The two ends of the cylinder body 4 are arranged inside and outside the high-low temperature box 1 respectively;

[0066] The push rod 5 passes through the cylinder body 4;

[0067] The force sensor 9 is connected to one end of the cylinder body 4 outside the high-low temperature box 1, and the actuating part of the force sensor 9 is connected to one end of the push rod 5;

[0068] The brake actuator 2 is connected to the other end of the cylinder body 4 inside the high-low temperature box 1, and the output part of the brake actuator 2 is connected to one end of the push rod 5;

[0069] The position of the brake actuator 2 relative to the cylinder body 4 is adjusted, and the output pressure of the brake actuator 2 is tested.

[0070] In summary, the brake actuator high-low temperature environment test method provided by the application can utilize the brake actuator high-low temperature environment test device to implement the following steps: first, the cylinder body 4 is inserted through the equipment hole, one end of the cylinder body 4 is arranged inside the high-low temperature box 1, and the other end of the cylinder body 4 is arranged outside the high-low temperature box 1; then, the left cylinder body clamping seat 6 and the right cylinder body clamping seat 7 are screwed in the direction of approaching each other until the left cylinder body clamping seat 6 and the right cylinder body clamping seat 7 abut against the inner and outer side walls of the high-low temperature box 1, and the screwing is stopped; at this time, the left cylinder body clamping seat 6 and the right cylinder body clamping seat 7 are clamped on the side walls of the high-low temperature box 1 to limit the movement of the cylinder body 4; the output part of the brake actuator 2 is connected to the installation interface position of the brake actuator fixing seat 3 and the other end of the push rod 5; when the output part of the brake actuator 2 moves, the push rod 5 can transmit the pushing force to the force sensor 9 outside the high-low temperature box 1, and the pushing force output by the output part of the brake actuator 2 can be directly tested, so that when the brake actuator 2 is subjected to the high-low temperature test, the force sensor 9 is located outside the high-low temperature box 1, the force sensor 9 is prevented from being affected by the environmental temperature, and the detection accuracy of the output pressure of the brake actuator 2 under the high-low temperature environment is ensured.

[0071] The above has described the embodiments of the application, and the above description is exemplary, is not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A high and low temperature environment testing device for brake actuators, characterized in that, The device includes: A high and low temperature chamber, wherein the side wall of the high and low temperature chamber is provided with equipment holes; A cylindrical body, which passes through the equipment hole, has one end located inside the high and low temperature chamber and can be connected to a brake actuator, and the other end located outside the high and low temperature chamber and connected to a force sensor. A push rod is movably connected to the cylinder body. One end of the push rod is connected to the actuating part of the force sensor, and the other end of the push rod can contact the output part of the brake actuator. It also includes a left cylinder holder and a right cylinder holder. The outer periphery of the cylinder is provided with an external threaded wall. Both the left cylinder holder and the right cylinder holder are provided with a first threaded hole. The left cylinder holder is located inside the high and low temperature chamber and is threadedly connected to the cylinder. The right cylinder holder is located outside the high and low temperature chamber and is threadedly connected to the cylinder. The left cylinder holder and the right cylinder holder can respectively abut against the inner and outer walls of the high and low temperature chamber. Both the left and right cylinder holders are concave in shape, and the two first threaded holes are respectively provided on the concave surface of the left cylinder holder and the concave surface of the right cylinder holder. The concave surface of the left cylinder holder is opposite to the concave surface of the right cylinder holder.

2. The high and low temperature environment testing device for brake actuators according to claim 1, characterized in that, It also includes a brake actuator mounting base, one end of which is provided with an installation interface, and the other end is provided with a second threaded hole communicating with the installation interface. The brake actuator mounting base is located inside the high and low temperature chamber and is threadedly connected to one end of the cylinder. The output part of the brake actuator is connected to the installation interface.

3. The high and low temperature environment testing device for brake actuators according to claim 1, characterized in that, It also includes a support base, one end of which is connected to the other end of the cylinder, and the force sensor is connected to the support base.

4. The high and low temperature environment testing device for a brake actuator according to claim 2, characterized in that, The inner diameter of the second threaded hole is larger than the inner diameter of the mounting interface, and the inner diameter of the cylinder is also larger than the inner diameter of the mounting interface.

5. The high and low temperature environment testing device for a brake actuator according to claim 2, characterized in that, A gap is provided between the outer wall of the push rod and the inner wall of the cylinder.

6. The high and low temperature environment testing device for a brake actuator according to claim 3, characterized in that, The support base includes an end plate and a support block. The end plate is integrally formed and connected to one end of the support block. The end plate is provided with a third threaded hole. The end plate is threadedly connected to the other end of the cylinder. The force sensor is connected to the inner side of the support block.

7. The high and low temperature environment testing device for a brake actuator according to claim 6, characterized in that, It also includes a force sensor mounting base, which is connected to the inner side of the support block, and the force sensor is connected to the side of the force sensor mounting base facing the third threaded hole.

8. A method for testing brake actuators in high and low temperature environments, utilizing the brake actuator high and low temperature environment testing apparatus according to any one of claims 1-7, characterized in that, The method includes: The two ends of the cylinder are respectively located inside and outside the high and low temperature chamber; Pass the push rod through the cylinder; The force sensor is connected to the end of the cylinder located outside the high and low temperature chamber, and the contact part of the force sensor is connected to one end of the push rod. Connect the brake actuator to the other end of the cylinder located inside the high and low temperature chamber, and connect the output of the brake actuator to one end of the push rod; Adjust the position of the brake actuator relative to the cylinder and test the output pressure of the brake actuator.

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