CN221224195U

CN221224195U - Automobile brake hose bending fatigue testing machine

Info

Publication number: CN221224195U
Application number: CN202323152180.9U
Authority: CN
Inventors: 丁洪泉
Original assignee: Qingdao Remote Technology Co ltd
Current assignee: Qingdao Remote Technology Co ltd
Priority date: 2023-11-22
Filing date: 2023-11-22
Publication date: 2024-06-25
Anticipated expiration: 2033-11-22

Abstract

The utility model belongs to the technical field of automobile brake hose detection, and provides an automobile brake hose flexural fatigue testing machine which comprises a working cabinet, a motor and a plurality of test tables, wherein the motor and the test tables are arranged on the working cabinet; the medium box and the medium pipeline are arranged in the working cabinet. On the basis of the original test device, the valve is arranged on the second joint, the recovery pipeline is additionally arranged in the original medium pipeline, the liquid collector is designed for buffering and temporary storage, after the test is finished, only the medium pump and the control valve of the conveying pipeline are required to be closed, the control valve of the recovery pipeline is opened, and the air pump or the air pump is used for pumping pressure air into the valve, so that residual medium in the brake hose flows back and enters the liquid collector for temporary storage through the branch pipeline; when the liquid collector is full of the medium, the medium is recovered to the medium tank through a recovery pipeline; no additional processing device is needed to be configured to remove residual media in the brake hose, and the media are recycled to the media box to realize secondary utilization, so that the whole process is easy to operate and has high efficiency.

Description

Automobile brake hose bending fatigue testing machine

Technical Field

The utility model belongs to the technical field of automobile brake hose detection, and particularly relates to an automobile brake hose flexural fatigue testing machine.

Background

In automotive braking systems, the brake hose is considered a critical component. The brake medium is mainly used for transmitting the brake medium in the braking process of the automobile, so that the braking force can be quickly transmitted to the brake shoe or the brake caliper of the automobile, and the braking operation is quicker and more efficient.

The brake hose actually installed on the automobile can generate relative motion between the wheels and the axle, the quality and the durability of the brake hose are one of important guarantees of the normal operation of an automobile brake system, and in order to ensure the reliability and the safety of the brake system, the national standard GB16897 sets various performance standard requirements of the brake hose. The flexibility test is used for simulating the oxidation resistance of the automobile brake hose under a complex working condition, and becomes an important detection program before the brake hose leaves a factory. The existing flexural fatigue testing equipment has various types, but most of the flexural fatigue testing equipment for the brake hose has the problems of different degrees in practical application through research and study, and the problems are mainly represented as follows:

1. In a long detection period, most test equipment has noise pollution, test medium leakage and splash pollution;

2. In the test process, the brake hose is always filled with test media, and after the test is finished, the test media still remain in the brake hose and are difficult to discharge, and the test media can only be treated one by workers in a manual mode, or an additional air blowing device is required to be configured for secondary treatment, so that the test efficiency is affected, and meanwhile, the discharged residual media are seriously wasted and pollute the environment;

3. The same equipment has single detection range, is only suitable for specific models, and has poor adaptation capability for brake hoses with different sizes;

4. Most of the devices are large in size, complex in structure, low in integration level and inconvenient to install and transport.

Disclosure of utility model

The utility model provides an automobile brake hose bending fatigue testing machine for solving the problems in the background technology, which comprises a working cabinet, a motor and a plurality of test tables, wherein the motor and the test tables are arranged on the working cabinet; the medium pipeline comprises a conveying main pipeline and a recovery pipeline which are connected with the medium box, and branch pipelines which are matched with the test bed in number; a pressure sensor and a booster pump are arranged in the branch pipeline; the conveying main pipeline and the recovery pipeline are both provided with control valves; a medium pump is arranged on the conveying main pipeline; the liquid collector is arranged in the medium pipeline, one end of the branch pipeline is connected with the test bed, and the other end of the branch pipeline is connected with the liquid collector; the conveying main pipeline and the recovery pipeline are simultaneously connected with the liquid collector; the test bed comprises a base, a support arranged on the base, a first connector arranged on the support, a turntable and a second connector arranged at the edge of the turntable, wherein the first connector and the second connector are used for connecting two ends of a brake hose; the branch pipeline is communicated with the first joint, and the medium is subjected to the first joint and the brake hose by the branch pipeline; and the second joint is provided with a valve communicated with the brake hose, and the valve is used for connecting pressure gas to the valve to enable residual medium in the brake hose to flow back and be recovered.

In a preferred embodiment, 3 valves are provided.

In the preferred scheme, a medium channel communicated with the first joint is arranged in the support, and the branch pipeline is connected with the medium channel in the support and communicated with the first joint.

In the preferred scheme, the motor is installed in the middle part of the working cabinet, and two ends of the motor are respectively provided with an output shaft connected with the turntable.

In the preferred scheme, two motors are arranged on the workbench, and a test bed is arranged at two ends of each motor.

In the preferred scheme, the work cabinet top is provided with transparent protection casing, transparent protection casing one end is connected with the work cabinet edge rotation, is provided with the telescopic link that is used for adjusting transparent protection casing open condition on the work cabinet.

In the preferred scheme, the work cabinet front side is provided with a plurality of cabinet doors, and work cabinet bottom is provided with a plurality of supporting legs, the supporting legs passes through bolted connection with work cabinet bottom, but the height of adjustable work cabinet.

In the preferred scheme, the bottom of the working cabinet is also provided with a plurality of universal wheels for realizing the integral movement of the working cabinet.

In the preferred scheme, be provided with the mounting groove on the workstation, be provided with the mount pad in the mounting groove, be provided with a plurality of mounting holes on the mount pad, the base of test bench passes through the bolt to be installed in the mounting hole of different positions, but the distance of adjustable base and carousel adapts to the test of the brake hose of different length.

In the preferred scheme, the workbench is also provided with a control box, the control box is provided with a touch screen, a controller which is electrically connected with a motor, a pressure sensor in a branch pipeline, a medium pump, a control valve of a conveying main pipeline and a recovery pipeline is arranged in the control box, and the controller is provided with the touch screen.

The beneficial effects achieved by the utility model are as follows:

The first, the utility model is on the basis of original test device, set up the air valve on the second joint, have set up the recovery pipeline in the original medium pipeline, and has designed the liquid collector to use for buffering and temporary storage, after the test is finished, only need to close medium pump and control valve of the conveying pipeline, open the control valve of the recovery pipeline, and use the air cylinder or air pump to throw into the pressure gas into the air valve, make the residual medium in the brake hose flow back, enter the liquid collector to temporary store through the branch pipeline; when the liquid collector is full of the medium, the medium is recovered to the medium tank through a recovery pipeline; no additional processing device is required to be configured to remove residual media in the brake hose, and the media are recycled to the media box to realize secondary utilization, so that the whole process is easy to operate and has high efficiency;

Secondly, the transparent protective cover is designed, so that noise in the test process is reduced, and the condition of splashing pollution caused by medium leakage is avoided;

thirdly, the base of the test stand is arranged in the mounting holes at different positions through bolts, the distance between the base and the turntable can be adjusted, and the test stand can be suitable for detection tests of brake hoses with different lengths;

Fourth, the utility model has high integration level, a plurality of test tables can be arranged on one working cabinet, simultaneously a plurality of brake hoses can be tested in parallel, and the bottom of the working cabinet is provided with the supporting feet and the universal wheels with adjustable heights, so that the working cabinet is convenient to install and move.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic view of the structure of the working cabinet and the test stand;

FIG. 3 is an enlarged schematic view of the structure at A of FIG. 2;

FIG. 4 is a schematic view of the internal structure of the work cabinet and the test stand;

FIG. 5 is an enlarged schematic view of the structure at B of FIG. 4;

fig. 6 is a schematic diagram of a medium circuit configuration.

Reference numerals in the drawings:

1. A working cabinet; 11. a mounting groove; 12. a cabinet door; 13. supporting feet; 14. a universal wheel; 15. a mounting base; 151. a mounting hole; 2. a test bed; 21. a base; 22. a support; 23. a first joint; 24. a turntable; 25. a second joint; 3. a media box; 31. a media pump; 4. a control box; 41. a touch screen; 5. a transparent protective cover; 51. a telescopic rod; 6. a motor; 7. a brake hose; 8. a valve; 9. a medium pipeline; 91. a branch pipeline; 92. a main conveying pipeline; 93. a recovery pipeline; 94. a liquid collector.

Detailed Description

The embodiments of the present utility model will be described more fully hereinafter with reference to the accompanying drawings, in which the embodiments of the present utility model are shown by way of illustration only, and the utility model is not limited to the embodiments of the present utility model, but other embodiments of the present utility model will be apparent to those skilled in the art without making any inventive effort.

Referring to fig. 1-6, the utility model designs a bending fatigue testing machine for an automobile brake hose 7, which comprises a working cabinet 1, a motor 6 arranged on the working cabinet 1 and a plurality of test tables 2; the medium box 3 and the medium pipeline 9 are arranged in the working cabinet 1, wherein the medium pipeline 9 comprises a conveying main pipeline 92 and a recovery pipeline 93 which are connected with the medium box 3, and branch pipelines 91 which are matched with the test bed 2 in number; a pressure sensor and a booster pump are arranged in the branch pipeline 91; the main conveying pipeline 92 and the recovery pipeline 93 are provided with control valves; the medium pump 31 is arranged on the main conveying pipeline 92; the liquid collector 94 is arranged in the medium pipeline 9, one end of the branch pipeline 91 is connected with the test stand 2, and the other end of the branch pipeline is connected with the liquid collector 94; the main conveying pipeline 92 and the recovery pipeline 93 are simultaneously connected with the liquid collector 94; the test stand 2 comprises a base 21, a support 22 arranged on the base 21, a first connector 23 arranged on the support 22, a turntable 24, a second connector 25 arranged at the edge of the turntable 24, and a first connector 23 and a second connector 25 used for connecting two ends of a brake hose 7; the branch pipe 91 is communicated with the first joint 23, and the medium is communicated with the first joint 23 and the brake hose 7 through the branch pipe 91; the second joint 25 is provided with a valve 8 communicated with the brake hose 7, and is used for returning and recovering residual media in the brake hose 7 by connecting pressure gas through the valve 8. The number of the valves is 3, and the valves are preferably arranged at equal intervals of 120 degrees, so that an air cylinder or an air pump can be conveniently externally connected. The support 22 is provided with a medium passage communicated with the first joint 23, and the branch pipe 91 is connected with the medium passage in the support 22 and communicated with the first joint 23. The motor 6 is installed in the middle part of the working cabinet 1, and two ends of the motor 6 are respectively provided with an output shaft connected with the turntable 24. Two motors 6 are preferably arranged on the workbench, two ends of each motor 6 are respectively provided with a test bench 2, and fatigue tests of four brake hoses 7 can be simultaneously carried out. The utility model has high integration level, a plurality of test tables 2 can be arranged on one working cabinet, simultaneously a plurality of brake hoses 7 can be tested in parallel,

The work cabinet 1 top is provided with transparent protection casing 5, transparent protection casing 5 one end rotates with work cabinet 1 edge to be connected, is provided with the telescopic link 51 that is used for adjusting transparent protection casing 5 open state on the work cabinet 1. The state of the brake hose 7 in the test process can be observed through the transparent protective cover 5, meanwhile, the noise in the test process is reduced, and the condition of splashing pollution caused by medium leakage is avoided;

The front side of the working cabinet 1 is provided with a plurality of cabinet doors 12, the bottom of the working cabinet 1 is provided with a plurality of supporting feet 13, the supporting feet 13 are connected with the bottom of the working cabinet 1 through bolts, and the height of the working cabinet 1 can be adjusted. The bottom of the working cabinet 1 is also provided with a plurality of universal wheels 14 for realizing the integral movement of the working cabinet 1. The height-adjustable supporting legs 13 and the universal wheels 14 at the bottom of the working cabinet 1 are convenient to install and move.

Be provided with mounting groove 11 on the workstation, be provided with mount pad 15 in the mounting groove 11, be provided with a plurality of mounting holes 151 on the mount pad 15, the base 21 of test bench 2 passes through the bolt to be installed in the mounting hole 151 in different positions, adjustable base 21 and carousel 24's distance, the detection test of adaptation different length's brake hose 7.

The workbench is also provided with a control box 4, the control box 4 is provided with a touch screen 41, a controller which is electrically connected with the motor 6, the pressure sensor in the branch pipeline 91, the medium pump 31, the main conveying pipeline 92 and the control valve of the recovery pipeline 93 is arranged in the control box 4, and the controller is provided with the touch screen 41.

When the automobile brake hose 7 flex fatigue testing machine is used, the following steps can be referred to:

S1, after the working cabinet 1 is moved to a proper position through the universal wheels 14, the supporting legs 13 are adjusted to a proper height so as to fix the working cabinet 1;

S2, opening the transparent protective cover 5 above the working cabinet 1, supporting the transparent protective cover 5 through the telescopic rod 51 to enable the transparent protective cover 5 to be in an open state, adjusting the installation position of the base 21 of the test stand 2 on the installation seat 15 according to the length of the brake hose 7 to be detected, and installing the brake hose 7 to be detected on the test stand 2; one or a plurality of test tables 2 can be selected to perform the test together according to the requirement;

S3, closing the transparent protective cover 5, opening the medium pump 31 and the control valve of the conveying pipeline, closing the control valve of the recovery pipeline 93, and introducing test medium from the medium tank 3 to the brake hose 7 in the test stand 2, wherein the test medium adopts oil used in a real environment;

S4, reading the test medium pressure in the branch pipeline 91 through a pressure sensor, and adjusting the test medium pressure of the branch pipeline 91 through a booster pump to reach 0.3-0.5MPa;

S5, starting the motor 6 to rotate at a rotating speed of 1200r/min, and converting the circular motion output by the motor 6 into the bending motion of the brake hose 7 through the disc;

S6, in the testing process, the normal range of the pressure of the test medium is 0.35-0.45MPa, if the duration of the condition that the pressure is out of the normal range exceeds a threshold epsilon, epsilon is preferably 5 seconds, whether the brake hose 7 is leaked or damaged is observed through the transparent protective cover 5, and if so, the duration from the beginning of the testing to the leakage of the test medium is recorded; if not, stopping the machine to check the condition of the medium pipeline 9;

S7, if the test period H is finished, H is preferably 17-36 hours, and if the pressure deviation from the normal range does not occur all the time, after the test is finished, the medium pump 31 and the control valve of the conveying pipeline are closed, and the control valve of the recovery pipeline 93 is opened; the air cylinder or the air pump is used for pumping pressure air into the air valve 8, and the medium in the brake hose 7 flows back and enters the liquid collector 94 for temporary storage through the branch pipeline 91; when the liquid collector 94 is full of medium, the medium is recovered to the medium tank 3 through the recovery pipeline 93;

s8, taking the brake hose 7 out of the test stand 2 and closing the transparent protective cover 5.

On the basis of the original test device, the valve 8 is arranged on the second joint 25, the recovery pipeline 93 is additionally arranged in the original medium pipeline 9, the liquid collector 94 is designed for buffering and temporary storage, after the test is finished, only the medium pump 31 and the control valve of the conveying pipeline are required to be closed, the control valve of the recovery pipeline 93 is opened, and the pressure gas is pumped into the valve 8 by using the air cylinder or the air pump, so that the residual medium in the brake hose 7 flows back and enters the liquid collector 94 for temporary storage through the branch pipeline 91; when the liquid collector 94 is full of medium, the medium is recovered to the medium tank 3 through the recovery pipeline 93; no additional processing device is needed to be configured to remove residual media in the brake hose 7, and the media are recycled to the media box 3 to realize secondary utilization, so that the whole process is easy to operate and has high efficiency.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims

1. The utility model provides a car brake hose bending fatigue testing machine which characterized in that, it includes:

The device comprises a working cabinet (1), a motor (6) arranged on the working cabinet (1) and a plurality of test tables (2);

The medium pipeline (9) comprises a conveying main pipeline (92) and a recycling pipeline (93) which are connected to the medium tank (3), and branch pipelines (91) which are matched with the test bed (2) in number; a pressure sensor and a booster pump are arranged in the branch pipeline (91); the main conveying pipeline (92) and the recovery pipeline (93) are provided with control valves; a medium pump (31) is arranged on the conveying main pipeline (92);

The liquid collector (94) is arranged in the medium pipeline (9), one end of the branch pipeline (91) is connected with the test bed (2), and the other end of the branch pipeline is connected with the liquid collector (94);

the main conveying pipeline (92) and the recovery pipeline (93) are simultaneously connected with the liquid collector (94);

The test bed (2) comprises a base (21), a support (22) arranged on the base (21), a first joint (23) arranged on the support (22), a turntable (24) and a second joint (25) arranged at the edge of the turntable (24), wherein the first joint (23) and the second joint (25) are used for connecting two ends of a brake hose (7); the branch pipeline (91) is communicated with the first joint (23), and the medium is communicated with the first joint (23) and the brake hose (7) through the branch pipeline (91);

The second joint (25) is provided with a valve (8) communicated with the brake hose (7) and is used for leading residual medium in the brake hose (7) to flow back and recycle by connecting pressure gas through the valve (8).

2. The automobile brake hose bending fatigue testing machine according to claim 1, wherein: the number of the valves (8) is 3.

3. The automobile brake hose bending fatigue testing machine according to claim 1, wherein: a medium channel communicated with the first joint (23) is arranged in the support (22), and the branch pipeline (91) is connected with the medium channel in the support (22) and communicated with the first joint (23).

4. The automobile brake hose bending fatigue testing machine according to claim 1, wherein: the motor (6) is arranged in the middle of the working cabinet (1), and output shafts connected with the turntables (24) are respectively arranged at two ends of the motor (6).

5. The automobile brake hose bending fatigue testing machine according to claim 3, wherein: two motors (6) are arranged on the workbench, and a test bed (2) is arranged at two ends of each motor (6).

6. The automobile brake hose bending fatigue testing machine according to claim 1, wherein: the transparent protective cover (5) is arranged above the working cabinet (1), one end of the transparent protective cover (5) is rotationally connected with the edge of the working cabinet (1), and the telescopic rod (51) for adjusting the opening state of the transparent protective cover (5) is arranged on the working cabinet (1).

7. The automobile brake hose bending fatigue testing machine according to claim 1, wherein: a plurality of cabinet doors (12) are arranged on the front side of the working cabinet (1); the bottom of the working cabinet (1) is provided with a plurality of supporting feet (13), the supporting feet (13) are connected with the bottom of the working cabinet (1) through bolts, and the height of the working cabinet (1) can be adjusted.

8. The automobile brake hose bending fatigue testing machine according to claim 1, wherein: the bottom of the working cabinet (1) is also provided with a plurality of universal wheels (14) for realizing the integral movement of the working cabinet (1).

9. The automobile brake hose bending fatigue testing machine according to claim 1, wherein: be provided with mounting groove (11) on the workstation, be provided with mount pad (15) in mounting groove (11), be provided with a plurality of mounting holes (151) on mount pad (15), base (21) of test bench (2) pass through the bolt to be installed in mounting hole (151) in different positions, but the distance of adjustable base (21) and carousel (24), the detection test of brake hose (7) of adaptation different length.

10. The automobile brake hose bending fatigue testing machine according to claim 1, wherein: the workbench is also provided with a control box (4), the control box (4) is provided with a touch screen (41), a controller electrically connected with control valves of the motor (6), the pressure sensor in the branch pipeline (91), the medium pump (31), the conveying main pipeline (92) and the recovery pipeline (93) is arranged in the control box (4), and the controller is provided with the touch screen (41).