CN214951927U - Contact starting pressure test bench - Google Patents

Abstract

The utility model relates to a mechanical pressure detects the field, specifically is a contact start pressure test platform is related to, including quick-witted case, support post, pneumatic pressure device, pressure measurement, positioner. The air pressure machine is arranged in the case, a starting button is installed on one side of the case, the pneumatic pressure device is fixedly arranged at the upper end of the supporting stand column and connected with the air pressure machine, the pneumatic pressure device is provided with an output end which can vertically extend downwards, the pressure detection device is fixedly arranged on the output end of the pneumatic pressure device, and the pneumatic pressure device is provided with a detection end which can downwards contact with the upper contact of the contact group. The utility model discloses the pressure reading that surveys is the peak value reading, and the digital display digit is visual directly perceived, avoids reading the mistake, utilizes pneumatic principle operation test platform, and is simple and convenient, labour saving and time saving, and the operational environment suitability is strong, and the test pressure unit has multiple, has pound, kilogram, newton, can set up the change at will between the three.

Description

Contact starting pressure test bench

Technical Field

The utility model relates to a mechanical pressure detects the field, specifically is to relate to a contact start pressure testboard.

Background

The railway switch machine is a key product for ensuring the running safety of trains, and the contact set is an important component of the switch machine. When the turnout is switched in place, the detection rod detects that the turnout is closely attached, the locking block pops up under the action of the spring, the spring bolt is pushed to extend out, the locking in the turnout is completed, the lower part of the contact group is provided with a thrust force, the upper part of the contact group is switched, and each circuit is switched on. The elasticity of the spring of the locking block is limited, when the resistance of the lower part of the contact group to the spring bolt is larger than the elasticity of the spring of the locking block, the spring cannot be ejected, the contact group cannot be normally switched, and a normal circuit cannot be connected, so that the fault of a driving circuit can be caused, and the normal driving is influenced.

The starting pressure of the lower part of the contact group directly influences the using state of the product on a railway site, the pressure is too large, normal conversion cannot be performed, traveling is influenced, the pressure is too small, the vibration resistance of the railway site is too weak, a contact starting pressure test bench is needed to test the starting pressure of each contact group, and the quality of the product is ensured.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, a contact starting pressure test bench is provided.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

a contact start pressure test stand comprising:

the air press is arranged in the case, and a starting button is arranged on one side of the case;

the supporting upright post is vertically and fixedly arranged at the upper end of the case;

the pneumatic pressure device is fixedly arranged at the upper end of the supporting upright post, is connected with the air press machine and is provided with an output end which can vertically extend downwards;

the pressure detection device is fixedly arranged on the output end of the pneumatic pressure device and is provided with a detection end which can downwards contact with the upper contact of the contact group;

and the positioning device is fixedly arranged at the top of the case and is close to the lower end of the support upright.

Further, the pneumatic pressure device includes:

the air cylinder is fixedly arranged at the upper end of the support upright post, is arranged in a vertical state, and has an output shaft arranged downwards;

the sliding block is attached to one side of the supporting upright post, the top of the sliding block is fixedly connected with an output shaft of the air cylinder, and the sliding block is the output end of the pneumatic pressure device.

Furthermore, one side of the supporting upright post is fixedly provided with a vertical slide rail, and the slide block is connected with the vertical slide rail in a sliding manner.

Furthermore, the pneumatic pressure detection device is a digital display dynamometer which is fixedly arranged on the outer side of the sliding block, and the detection end of the digital display dynamometer is vertically arranged downwards.

Furthermore, a pressing block for applying pressure to the joint on the upper part of the joint group is fixedly arranged at the bottom of the detection end of the digital display dynamometer, and the pressing block is the detection end of the pressure detection device.

Further, the positioning device comprises:

the U-shaped backer is fixedly arranged at the lower end of the support upright post and is positioned at the same side of the cylinder;

and the workbench is fixedly arranged on the top of the case in a horizontal state and is positioned under the U-shaped backer.

The utility model has the advantages that: the utility model discloses the pressure reading of surveying is the peak value reading, and the digital display digit is visual directly perceived, avoids reading the mistake. The test board is operated by utilizing the pneumatic principle, so that the test board is simple and convenient, time-saving and labor-saving, and the working environment has strong applicability. The pressure units for testing are various, such as pounds, kilograms and newtons, and the three can be randomly arranged and exchanged.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a front view of the three-dimensional structure of the present invention;

fig. 3 is a left side view of the three-dimensional structure of the present invention.

The reference numbers in the figures are:

1-a chassis; 2-start button; 3-supporting the upright column; 4-a pneumatic pressure device; 5-a pressure detection device; 6-a positioning device; 7-a cylinder; 8-a slide block; 9-vertical sliding rail; 10-digital display dynamometer; 11-briquetting; 12-U shaped backer; 13-the work bench.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

Referring to fig. 1 to 3, a joint activation pressure test stand includes:

the air compressor comprises a case 1, wherein an air press is arranged in the case 1, and a starting button 2 is arranged on the side surface of the case 1;

the supporting upright column 3 is vertically and fixedly arranged at the upper end of the case 1;

the pneumatic pressure device 4 is fixedly arranged at the upper end of the support upright post 3, is connected with the air press and is provided with an output end which can vertically extend downwards;

the pressure detection device 5 is fixedly arranged on the output end of the pneumatic pressure device 4 and is provided with a detection end which can downwards contact with the upper contact of the contact group;

and the positioning device 6 is fixedly arranged at the top of the case 1 and is close to the lower end of the support upright 3.

When the pneumatic pressure testing device is used, the contact group is fixed by the positioning device 6, the contact to be tested is clamped with the testing end of the pressure testing device 5, the power supply is switched on, the starting button 2 is pressed, the air press is started, the output end of the air press drives the output end of the pneumatic pressure device 4 to move, the testing end of the pressure testing device 5 fixed on the output end starts to work, and the pressure peak value is tested.

The pneumatic pressure means 4 comprise:

the cylinder 7 is fixedly arranged at the upper end of the support upright post 3, the cylinder 7 is arranged in a vertical state, and an output shaft is arranged downwards;

and the sliding block 8 is attached to one side of the support upright post 3, the top of the sliding block 8 is fixedly connected with an output shaft of the air cylinder 7, and the sliding block 8 is the output end of the pneumatic pressure device 4.

When the air press works, the output end of the air cylinder 7 drives the sliding block 8 to vertically move downwards.

One side of the supporting upright post 3 is fixedly provided with a vertical slide rail 9, and the slide block 8 is connected with the vertical slide rail 9 in a sliding manner.

Firstly, two threaded holes are processed on the side surface of the support upright post 3, and then the vertical slide rail 9 is fixed on the support upright post 3 through bolt connection.

The pneumatic pressure detection device 5 is a digital display dynamometer 10 which is fixedly arranged on the outer side of the sliding block 8, and the detection end of the digital display dynamometer 10 is vertically arranged downwards.

The digital dynamometer 10 has three test units, namely pound, kilogram and Newton, and is calibrated and reset before use, and then the test units are adjusted to the required units.

The bottom of the detection end of the digital dynamometer 10 is fixedly provided with a pressing block 11 for pressing a joint on the upper part of the joint group, and the pressing block 11 is the detection end of the pressure detection device 5.

During operation, the pressing block 11 at the bottom of the detection end of the digital display dynamometer 10 is abutted against the contact to be detected at the upper part of the contact group, when the detection end vertically moves downwards, the action part of the contact to be detected is pushed downwards, and at the moment, the peak value reading is read out through the display screen of the digital display dynamometer 10 and is recorded.

The positioning device 6 comprises:

the U-shaped backer 12 is fixedly arranged at the lower end of the support upright post 3 and is positioned at the same side as the cylinder 7;

and the workbench 13 is fixedly arranged on the top of the case 1 in a horizontal state and is positioned right below the U-shaped backer 12.

Before testing, the contact group is vertically placed on the workbench 13, the side surface of the contact group is fixed on the inner side of the U-shaped backer 12 through the U-shaped backer 12, and the contact to be tested is aligned to the detection end of the digital dynamometer 10.

The working principle is as follows:

firstly, connecting an air pipe of an air cylinder 7 on an output end of an air press, then opening a digital dynamometer 10, calibrating and clearing, adjusting a test unit to a required unit, vertically placing a contact group on a workbench 13, fixing the contact group on the inner side of a U-shaped backer 12, aligning a contact to be tested with a detection end of the digital dynamometer 10, switching on a power supply, pressing a start button 2, starting the air press to work, keeping the air pressure at 0.4-0.8 MPa, driving a lower slide block 8 to move along a vertical slide rail 9 by a push rod of the air cylinder 7, enabling the digital dynamometer 10 to move in the same direction with the push rod, pushing an action part of the contact to be tested downwards by the detection end of the digital dynamometer 10, and reading a pressure value through a display screen of the digital dynamometer 10.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. A contact start pressure test stand, comprising:

the air compressor comprises a case (1), an air press machine is arranged in the case, and a starting button (2) is arranged on one side of the case (1);

the supporting upright post (3) is vertically and fixedly arranged at the upper end of the case (1);

the pneumatic pressure device (4) is fixedly arranged at the upper end of the supporting upright post (3), is connected with the air press, and is provided with an output end which can vertically extend downwards;

the pressure detection device (5) is fixedly arranged on the output end of the pneumatic pressure device (4) and is provided with a detection end which can downwards contact the upper contact of the contact group;

and the positioning device (6) is fixedly arranged at the top of the case (1) and is close to the lower end of the support upright post (3).

2. A joint start pressure test bench according to claim 1, characterized in that said pneumatic pressure means (4) comprises:

the air cylinder (7) is fixedly arranged at the upper end of the support upright post (3), the air cylinder (7) is arranged in a vertical state, and an output shaft is arranged downwards;

and the sliding block (8) is attached to one side of the supporting upright post (3), the top of the sliding block (8) is fixedly connected with an output shaft of the air cylinder (7), and the sliding block (8) is the output end of the pneumatic pressure device (4).

3. A contact start pressure test bench according to claim 2, characterized in that a vertical slide rail (9) is fixedly installed on one side of said supporting column (3), and said slide block (8) is slidably connected with said vertical slide rail (9).

4. The joint starting pressure test bench according to claim 2, wherein the pneumatic pressure detecting device (5) is a digital dynamometer (10) fixedly arranged on the outer side of the sliding block (8), and the detecting end of the digital dynamometer (10) is vertically arranged downwards.

5. The joint starting pressure test bench according to claim 4, characterized in that a pressing block (11) for pressing the joint on the upper part of the joint group is fixedly arranged at the bottom of the detection end of the digital dynamometer (10), and the pressing block (11) is the detection end of the pressure detection device (5).

6. A joint start pressure test bench according to claim 1, characterized in that said positioning means (6) comprises:

the U-shaped backer (12) is fixedly arranged at the lower end of the support upright post (3) and is positioned at the same side of the cylinder (7);

and the workbench (13) is fixedly arranged at the top of the case (1) in a horizontal state and is positioned right below the U-shaped backrest (12).

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