Quickly-released safe leaning machine executing mechanism

Abstract

The utility model relates to the technical field of hydraulic machinery, in particular to a quick-release safe leaning actuating mechanism, which comprises a brake oil cylinder, a middle sleeve, an inner pressure spring, a pressure spring inner retainer ring and a brake auxiliary pump, an oil liquid drives an oil cylinder piston extension rod, an oil cylinder rod pushes a piston groove of the auxiliary pump, and double cavities of the auxiliary pump are pushed to discharge high-pressure brake oil. And the pressure is instantly increased to a brake hydraulic system to form a brake effect. The brake auxiliary pump forms corresponding displacement according to the pushing depth of the brake oil cylinder, pressure output by the auxiliary pump to the brake hydraulic system is formed according to the pressure of the oil cylinder rod, and snub brake speed limiting and deep treading brake stopping during foot braking of people are simulated according to the telescopic frequency of the oil cylinder rod. After braking is completed, the brake hydraulic system needs to be quickly decompressed, a reset pressure spring is arranged in the brake auxiliary pump, it is guaranteed that the auxiliary pump is restored to the normal pressure state, and brake fluid of a wheel cylinder of the brake hydraulic system flows back into the brake kettle, and therefore the problem that the auxiliary pump cannot restore to the initial position due to the fact that the reset spring cannot counteract oil cylinder back pressure is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic machinery, in particular to a quick-release safety leaning actuator. Background Art

[0002] The actuation system for safe landing systems in airport ground equipment primarily utilizes a hydraulically controlled auxiliary pump for brake control. Typically, a hydraulic valve controls the extension and retraction of a one-way hydraulic cylinder, while a mechanically driven auxiliary brake pump controls the entire vehicle's braking system. When the hydraulic valve is energized, pressure on the one-way hydraulic cylinder offsets the return spring, extending the cylinder rod. The auxiliary brake pump then outputs system pressure, actuating the brakes.

[0003] The hydraulic valve loses power and reverses, the hydraulic cylinder leaks pressure, and the cylinder rod retracts under the force of the return spring. The brake auxiliary cylinder recovers its initial force under the action of the built-in return spring and the system return force, completing the brake release.

[0004] However, due to the back pressure of the hydraulic valve itself, the return spring often fails to offset the back pressure of the oil cylinder, resulting in the auxiliary pump being unable to return to its initial position. During driving, the vehicle brakes slightly, affecting process control. Utility Model Content

[0005] The utility model aims to provide a quick-release safety leaning actuator, which aims to solve the problem that the return spring cannot offset the back pressure of the oil cylinder, resulting in the auxiliary pump being unable to return to its initial position.

[0006] To achieve the above object, the utility model provides a quick-release safety brake actuator, comprising a brake oil cylinder, an intermediate sleeve, an inner compression spring, an inner retaining ring of the compression spring and a brake auxiliary cylinder;

[0007] The intermediate sleeve is installed on one side of the brake cylinder, the inner compression spring is fixedly connected to the intermediate sleeve and is located inside the intermediate sleeve, the inner retaining ring of the compression spring is fixedly connected to the inner compression spring and is connected to the brake cylinder, and the brake auxiliary cylinder is installed on the intermediate sleeve.

[0008] Among them, the brake cylinder has a mounting plate and multiple fixing bolts. The mounting plate is fixedly connected to the brake cylinder and is located on one side of the brake cylinder. The multiple fixing bolts respectively pass through the middle sleeve and are installed on the mounting plate.

[0009] Wherein, the inner retaining ring of the compression spring has a support disk, and the support disk is fixedly connected to the inner compression spring and is located on one side of the inner compression spring.

[0010] Wherein, the inner retaining ring of the compression spring has a support disk, and the support disk is fixedly connected to the inner compression spring and is located on one side of the inner compression spring.

[0011] Among them, the intermediate sleeve has a mounting plate 2 and multiple fixing bolts 2. The mounting plate 2 is fixedly connected to the intermediate sleeve and is located on the intermediate sleeve. The multiple fixing bolts 2 respectively pass through the brake auxiliary cylinder and are installed on the mounting plate 2.

[0012] Wherein, the auxiliary brake cylinder has a bottom groove, and the bottom groove is located on the end surface of the auxiliary brake cylinder.

[0013] The utility model provides a quick-release safety brake actuator, wherein the brake cylinder is a one-way cylinder controlled by a hydraulic solenoid valve, and the oil drives the cylinder piston to extend the rod, and the cylinder rod pushes the piston groove of the auxiliary pump, pushing the auxiliary pump's double chamber to discharge high-pressure brake oil, instantly increasing the pressure to the brake hydraulic system to form a braking effect. The brake auxiliary pump forms a corresponding displacement according to the depth of the brake cylinder push, forms the pressure output by the auxiliary pump to the brake hydraulic system according to the pressure of the cylinder rod, and simulates the point braking speed limit and deep braking stop when someone brakes according to the extension and contraction frequency of the cylinder rod. When braking is completed, the brake hydraulic system needs to be quickly depressurized. The brake auxiliary pump has a built-in reset spring to ensure that the auxiliary pump returns to normal pressure, and the brake fluid of the brake hydraulic system's sub-pump flows back into the brake pot, thereby solving the problem that the reset spring cannot offset the cylinder back pressure, resulting in the auxiliary pump being unable to return to its initial position. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art.

[0015] Figure 1 The utility model is a structural diagram of a quick-release safety leaning actuator.

[0016] Figure 2 It is a cross-sectional view of a quick-release safety leaning actuator of the utility model.

[0017] In the figure: 1-brake cylinder, 2-middle sleeve, 3-inner compression spring, 4-compression spring inner retaining ring, 5-brake auxiliary cylinder, 6-bottom groove, 7-support plate, 8-mounting plate 1, 9-fixing bolt 1, 10-mounting plate 2, 11-fixing bolt 2. DETAILED DESCRIPTION

[0018] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0019] See also Figure 1-Figure 2The utility model provides a quick-release safety brake actuator, comprising a brake cylinder 1, an intermediate sleeve 2, an inner compression spring 3, an inner retaining ring of the compression spring 4 and a brake auxiliary cylinder 5;

[0020] The intermediate sleeve 2 is installed on one side of the brake cylinder 1, the internal compression spring 3 is fixedly connected to the intermediate sleeve 2 and is located inside the intermediate sleeve 2, the compression spring inner retaining ring 4 is fixedly connected to the internal compression spring 3 and connected to the brake cylinder 1, and the brake auxiliary cylinder 5 is installed on the intermediate sleeve 2.

[0021] In this embodiment, the brake cylinder 1 is a one-way cylinder controlled by a hydraulic solenoid valve. The oil drives the cylinder piston to extend the rod. The cylinder rod of the brake cylinder 1 pushes the piston groove of the brake auxiliary pump 5, pushing the double chamber of the brake auxiliary pump 5 to discharge high-pressure brake oil, instantly increasing the pressure to the brake hydraulic system, forming a braking effect. The brake auxiliary pump 5 forms a corresponding displacement according to the depth of the push of the brake cylinder 1, forms the pressure output by the auxiliary pump to the brake hydraulic system according to the pressure of the cylinder rod, and simulates the point braking speed limit and deep braking stop when someone brakes according to the extension and contraction frequency of the cylinder rod. When braking is completed, the brake hydraulic system needs to be quickly depressurized. The brake auxiliary pump 5 has a built-in reset spring to ensure that the auxiliary pump returns to the normal pressure state, and the brake fluid of the brake hydraulic system's slave cylinder flows back into the brake pot, thereby solving the problem that the reset spring cannot offset the cylinder back pressure, causing the auxiliary pump to be unable to return to its initial position.

[0022] Furthermore, the brake cylinder 1 has a mounting plate 8 and a plurality of fixing bolts 9. The mounting plate 8 is fixedly connected to the brake cylinder 1 and is located on one side of the brake cylinder 1. The plurality of fixing bolts 9 respectively pass through the intermediate sleeve 2 and are installed on the mounting plate 8.

[0023] In this embodiment, the mounting plate 8 provides installation conditions for the plurality of fixing bolts 9 , and the brake cylinder 1 and the intermediate sleeve 2 can be connected by the plurality of fixing bolts 9 .

[0024] Furthermore, the compression spring inner retaining ring 4 has a support disk 7 , which is fixedly connected to the inner compression spring 3 and is located on one side of the inner compression spring 3 .

[0025] In this embodiment, the edge of the support plate 7 is provided with a circular boss, and the internal compression spring 3 contacts the support plate 7 and transmits pressure to the cylinder rod of the brake cylinder 1 .

[0026] Furthermore, the intermediate sleeve 2 has a mounting plate 2 10 and a plurality of fixing bolts 2 11 . The mounting plate 2 10 is fixedly connected to the intermediate sleeve 2 and is located on the intermediate sleeve 2 . The plurality of fixing bolts 2 11 respectively pass through the brake auxiliary cylinder 5 and are installed on the mounting plate 2 10 .

[0027] In this embodiment, the second mounting plate 10 provides installation conditions for the plurality of second fixing bolts 11 , and the intermediate sleeve 2 and the auxiliary brake cylinder 5 can be connected by the plurality of second fixing bolts 11 .

[0028] Furthermore, the auxiliary brake cylinder 5 has a bottom groove 6 , and the bottom groove 6 is located on the end surface of the auxiliary brake cylinder 5 .

[0029] In this embodiment, the inner compression spring 3 can be connected through the bottom groove 6 .

[0030] The above disclosure is merely one or more preferred embodiments of the present application and is not intended to limit the scope of the present application. A person skilled in the art will understand that all or part of the processes of the above embodiments and equivalent changes made in accordance with the claims of the present application are still within the scope of the present application.

Claims

1. A quick-release safety actuator, characterized in that: It includes a brake oil cylinder, an intermediate sleeve, an inner compression spring, an inner retaining ring of the compression spring and a brake auxiliary cylinder; The intermediate sleeve is installed on one side of the brake cylinder, the inner compression spring is fixedly connected to the intermediate sleeve and is located inside the intermediate sleeve, the inner retaining ring of the compression spring is fixedly connected to the inner compression spring and is connected to the brake cylinder, and the brake auxiliary cylinder is installed on the intermediate sleeve.

2. The quick-release safety leaning actuator according to claim 1, characterized in that: The brake oil cylinder has a mounting plate and a plurality of fixing bolts. The mounting plate is fixedly connected to the brake oil cylinder and is located on one side of the brake oil cylinder. The plurality of fixing bolts respectively pass through the intermediate sleeve and are installed on the mounting plate.

3. The quick-release safety leaning actuator according to claim 1, characterized in that: The inner retaining ring of the compression spring has a support disk, which is fixedly connected to the inner compression spring and is located on one side of the inner compression spring.

4. The quick-release safety leaning actuator according to claim 1, characterized in that: The intermediate sleeve has a mounting plate 2 and a plurality of fixing bolts 2. The mounting plate 2 is fixedly connected to the intermediate sleeve and is located on the intermediate sleeve. The plurality of fixing bolts 2 respectively pass through the auxiliary brake cylinder and are installed on the mounting plate 2.

5. The quick-release safety leaning actuator according to claim 4, characterized in that: The auxiliary brake cylinder has a bottom groove, and the bottom groove is located on the end surface of the auxiliary brake cylinder.

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