CN218297520U - Hydraulic cylinder sealing performance testing device - Google Patents

Abstract

The utility model discloses a hydraulic cylinder tightness testing device, which comprises a testing box, an inflation mechanism, an electric sliding table, an ultrasonic leak detector, an ultrasonic measuring instrument and a controller, wherein the inflation mechanism is arranged on the testing box, and an inflation end of the inflation mechanism penetrates through the upper surface of the testing box and is positioned inside the testing box; the electric sliding table is arranged on the inner top wall of the test box; the ultrasonic leak detector is arranged on the sliding table of the electric sliding table and is connected with a detection head; the ultrasonic measuring instrument is arranged on the inner wall of the test box; the controller is installed on the test box, and the controller links to each other with inflating mechanism, electronic slip table, ultrasonic leak detector and ultrasonic measuring instrument respectively. From this, can detect a plurality of pneumatic cylinders simultaneously, detection efficiency is high, and can confirm the dew point, need not to dry and rust-resistant processing to the pneumatic cylinder simultaneously, easy operation to avoid the pneumatic cylinder impaired.

Description

Hydraulic cylinder sealing performance testing device

Technical Field

The utility model relates to a technical field of pneumatic cylinder specifically indicates a pneumatic cylinder leakproofness testing arrangement.

Background

The hydraulic cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has simple structure and reliable operation. When the reciprocating motion is realized by using the hydraulic cylinder, a speed reducing device can be omitted, no transmission gap exists, and the reciprocating motion is stable, so that the hydraulic cylinder is widely applied to hydraulic systems of various machines, and the sealing performance of the hydraulic cylinder needs to be detected before leaving a factory due to the fact that the quality of the hydraulic cylinder is guaranteed after the hydraulic cylinder is assembled.

For example, chinese patent publication No.: (CN 210889562U) discloses a hydraulic cylinder performance testing device, including bottom plate and pneumatic cylinder, set up the backup pad on the bottom plate, set up the pneumatic cylinder in the backup pad, the pneumatic cylinder includes cylinder bottom and cylinder, uide bushing, sealing washer, dirt proof boot, piston rod, sealing ring and hydraulic fluid port, and the cylinder is connected to the side of cylinder bottom. The device's advantage overall detection simple structure, convenient operation seals the detection to the pneumatic cylinder effectively, improves pneumatic cylinder practicality, guarantees the precision that detects the structure, however the device has certain shortcoming, can only detect by a pair of pneumatic cylinder, and detection efficiency is low, and can't confirm the dew point.

In the existing immersion (bubble) detection method, the detected hydraulic cylinder is sealed, gas with certain pressure is applied to an inner cavity of the hydraulic cylinder, and then the hydraulic cylinder is immersed into a water tank to observe whether bubbles are generated and the position of the generated bubbles so as to judge whether the hydraulic cylinder leaks or not and the leakage position. However, the detection method is simple to operate and low in cost. However, in this method, after the detection is finished, the detected hydraulic cylinder needs to be dried and subjected to rust prevention treatment, so that the operation is complicated, and the hydraulic cylinder may be damaged due to improper treatment.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent.

Therefore, the utility model discloses a first aim at provides a pneumatic cylinder leakproofness testing arrangement can detect a plurality of pneumatic cylinders simultaneously, and detection efficiency is high, and can confirm the dew point, need not to dry and rust-resistant treatment, easy operation to the pneumatic cylinder simultaneously to avoid the pneumatic cylinder impaired.

In order to achieve the above object, an embodiment of the present invention provides: a hydraulic cylinder tightness testing device comprises a testing box, an inflation mechanism, an electric sliding table, an ultrasonic leak detector, an ultrasonic measuring instrument and a controller, wherein the inflation mechanism is installed on the testing box, and an inflation end of the inflation mechanism penetrates through the upper surface of the testing box and is located inside the testing box; the electric sliding table is arranged on the inner top wall of the test box; the ultrasonic leak detector is arranged on a sliding table of the electric sliding table and is connected with a detection head; the ultrasonic measuring instrument is arranged on the inner wall of the test box; the controller is installed on the test box, just the controller respectively with aerify mechanism, electronic slip table, ultrasonic leak detector and ultrasonic measuring appearance and link to each other.

The utility model discloses pneumatic cylinder leakproofness testing arrangement, aerify the mechanism through the setting and fill into gas in to the pneumatic cylinder, and measure the pneumatic cylinder in the test through ultrasonic measuring instrument and whether there is the leakage problem indirectly, can confirm the pneumatic cylinder of revealing through electronic slip table and ultrasonic leak detector cooperation simultaneously, the controller plays the effect of always controlling, the artificial leakage point of revealing the pneumatic cylinder that can confirm of detecting the head of controlling, thereby can detect a plurality of pneumatic cylinders simultaneously, high detection efficiency, and can confirm to reveal the point, need not to dry and rust-resistant treatment to the pneumatic cylinder simultaneously, and is easy to operate, thereby avoid the impaired condition of pneumatic cylinder to appear.

In addition, the hydraulic cylinder tightness testing device proposed according to the application can also have the following additional technical characteristics:

the device comprises a testing box, an inflation mechanism and a control system, wherein the inflation mechanism comprises an inflator, a flow detector, a multi-way pipe fitting and a plurality of air guide hoses, the inflator is arranged on the testing box, and an inflation pipe of the inflator penetrates through the upper surface of the testing box and is communicated with the flow detector; the flow detector is communicated with an air inlet of the multi-way pipe fitting; and a plurality of air outlets of the multi-way pipe fittings are respectively communicated with the air guide hose correspondingly.

Specifically, the multi-way pipe fitting of antithetical couplet row comprises standpipe, violently pipe and a plurality of connecting pipe, just the multi-way pipe fitting of antithetical couplet row has an air inlet and a plurality of gas outlet.

Specifically, a plurality of U-shaped plates are installed to the inside diapire of test box.

Specifically, the front surface of test box articulates through the hinge has the chamber door, just the surface of chamber door is provided with the observation window.

Specifically, the flow detector is a gas flow meter.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a hydraulic cylinder tightness testing device according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a hydraulic cylinder tightness testing device according to another embodiment of the present invention.

As shown in the figure: 1. a test box; 2. an inflation mechanism; 3. an electric sliding table; 4. an ultrasonic leak detector; 5. an ultrasonic measuring instrument; 6. a controller; 7. a box door; 8. a U-shaped plate; 9. an observation window; 20. an inflator; 21. a flow detector; 22. arranging multi-way pipe fittings in a row; 23. an air guide hose; 40. and a detection head.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.

The hydraulic cylinder tightness testing device of the embodiment of the present invention is described below with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a hydraulic cylinder tightness testing device according to an embodiment of the present invention.

As shown in fig. 1, the hydraulic cylinder tightness testing device provided by the embodiment of the present invention may include a testing box 1, an inflation mechanism 2, an electric sliding table 3, an ultrasonic leak detector 4, an ultrasonic measuring instrument 5 and a controller 6.

Wherein, aerify mechanism 2 and install on test box 1, and aerify mechanism 2 aerify the end and run through test box 1's upper surface, and be located test box 1's inside, electronic slip table 3 is installed at test box 1's inside roof, ultrasonic leak detector 4 sets up on electronic slip table 3's slip table, and ultrasonic leak detector 4 is connected with detection head 40, ultrasonic measuring instrument 5 is installed on test box 1's inner wall, controller 6 is installed on test box 1, and controller 6 respectively with aerify mechanism 2, electronic slip table 3, ultrasonic leak detector 4 and ultrasonic measuring instrument 5 link to each other.

It should be noted that the ultrasonic meter 5 described in this example has an ultrasonic probe and can transmit ultrasonic detection.

Specifically, in the process of actual operation, related personnel respectively place a plurality of hydraulic cylinders into the test box 1, gas is filled into the hydraulic cylinders through the arrangement of the inflating mechanism 2, the ultrasonic measuring instrument 5 is started, pressure gas in the inner cavities of the hydraulic cylinders can be flushed out through the leakage holes once leakage occurs due to the fact that pressure difference exists between the inside and the outside of the hydraulic cylinders, sound waves with certain frequency can be generated at the leakage holes, and whether the leakage problem exists in the tested hydraulic cylinders can be indirectly measured through measuring the frequency of the sound waves by the ultrasonic measuring instrument 5.

Ultrasonic measuring instrument 5 transmits data information for controller 6, controller 6 analyzes received data, if data is greater than predetermined threshold value scope (can specifically mark according to actual conditions), controller 6 starts electronic slip table 3 and ultrasonic leak detector 4, the slip table of electronic slip table 3 drives ultrasonic leak detector 4 and moves, detect the sound collection of head 40 to the leakage point, ultrasonic leak detector 4 transmits the data that detect for controller 6, controller 6 analyzes the data that detect, if data is greater than predetermined threshold value scope (can specifically mark according to actual conditions), then controller 6 control electronic slip table 3 stops, confirm the pneumatic cylinder of gas leakage, then, relevant personnel move along the pneumatic cylinder of gas leakage and detect through holding detection head 40, thereby can confirm the specific leakage point of pneumatic cylinder gas leakage.

As a possible situation, in order to remind related personnel of carrying out manual detection on the hydraulic cylinder with air leakage in time, an audible and visual alarm can be installed on the test box 1, the controller 6 analyzes data detected by the ultrasonic leak detector 4, and if the data are larger than a preset threshold range, the controller 6 controls the audible and visual alarm to be turned on to remind the related personnel of carrying out detection on the hydraulic cylinder with air leakage in time.

As another kind of possible circumstances, in order to reduce relevant personnel's intensity of labour, improve the intelligence of this device simultaneously, can change into cross hold-in range slip table module with electronic slip table 3, thereby can drive ultrasonic leak detector 4 and move on X axle and Y axle, ultrasonic leak detector 4 gives controller 6 with the data transmission who detects, controller 6 carries out the analysis to the data that detect, if data are greater than predetermined threshold value scope, then controller 6 control cross hold-in range slip table module of module stops on the X axle, confirm the pneumatic cylinder of gas leakage, start the epaxial slip table module of Y simultaneously, confirm the gas leakage position of the pneumatic cylinder of gas leakage, detect the dew point automatically, it detects the dew point to need not the people to take the testing probe to detect the dew point.

In one embodiment of the present invention, as shown in fig. 1, the inflation mechanism 2 includes an inflator 20, a flow detector 21, a manifold 22, and a plurality of air guide hoses 23.

The inflator 20 is installed on the test box 1, an inflation tube of the inflator 20 penetrates through the upper surface of the test box 1 and is communicated with the flow detector 21, the flow detector 21 is communicated with an air inlet of the multi-way pipe 22, and a plurality of air outlets of the multi-way pipe 22 are respectively and correspondingly communicated with the air guide hose 23.

It should be noted that the flow detector 21 described in this example is electrically connected to the controller 6 through a wire, so as to detect the inflation amount of the hydraulic cylinder, the flow detector 21 sends the detected data information to the controller 6, and if the inflation amount reaches a preset threshold range, the controller 6 automatically controls the inflator 20 to stop operating, and simultaneously starts the ultrasonic measurement instrument 5, thereby improving the intelligence of the device.

Specifically, in the actual operation, the relevant person first communicates the air guide hose 23 with the air inlet of the hydraulic cylinder, and simultaneously seals the air outlet of the hydraulic cylinder, activates the inflator 20, and simultaneously inflates the inflator 20 with air into the plurality of hydraulic cylinders through the manifold 22 and the air guide hose 23.

In one embodiment of the present invention, as shown in fig. 1, the multi-way pipe 22 comprises a vertical pipe, a horizontal pipe and a plurality of connecting pipes, and the multi-way pipe 22 has an air inlet and a plurality of air outlets; a plurality of pneumatic cylinders can be inflated simultaneously through the arrangement, so that the working efficiency of the pneumatic cylinders during testing is improved.

In one embodiment of the present invention, as shown in fig. 1, a plurality of U-shaped plates 8 are installed on the inner bottom wall of the testing box 1; the hydraulic cylinder is supported and limited through the arrangement, so that the stability of the hydraulic cylinder during inflation can be improved, and the situation that the hydraulic cylinder shakes is avoided.

In an embodiment of the present invention, as shown in fig. 2, a box door 7 is hinged to the front surface of the testing box 1 through a hinge, and an observation window 9 is disposed on the surface of the box door 7; can close chamber door 7 when testing the pneumatic cylinder to can reduce the external noise and to measuring the produced influence when head 40 detects, see through observation window 9 simultaneously and can look over the behavior of the electronic slip table 3 slip table of being tested.

In one embodiment of the present invention, the flow detector 21 is a gas flow meter.

Specifically, in the actual operation process, related personnel respectively place a plurality of hydraulic cylinders into the test box 1, connect the air guide hose 23 with the air inlet of the hydraulic cylinder, block the air outlet of the hydraulic cylinder, start the inflator 20, the inflator 20 simultaneously fills gas into the plurality of hydraulic cylinders through the multi-way pipe 22 and the air guide hose 23, the flow detector 21 detects the inflation amount filled into the hydraulic cylinders, and sends the detected data information to the controller 6, if the inflation amount reaches the preset threshold range, the controller 6 automatically controls the inflator 20 to stop running, and simultaneously starts the ultrasonic measuring instrument 5, and the ultrasonic measuring instrument 5 detects the hydraulic cylinders.

If the pneumatic cylinder has the gas leakage point, then can produce the sound wave of certain frequency in small opening department, measure the sound wave frequency through ultrasonic measuring instrument 5 and measure the leakage indirectly, at this moment, ultrasonic measuring instrument 5 gives controller 6 with signal transmission, controller 6 starts electronic slip table 3 and ultrasonic leak detector 4, the slip table of electronic slip table 3 drives ultrasonic leak detector 4 and moves, detect the sound collection of head 40 to the leakage point, ultrasonic leak detector 4 gives controller 6 with the data transmission that detects, controller 6 analyzes the data that detect, if data are greater than predetermined threshold value scope (can specifically mark according to actual conditions), then controller 6 control electronic slip table 3 stall, confirm the pneumatic cylinder of gas leakage, then, relevant personnel take the detection head 40 to move along the pneumatic cylinder of gas leakage through the hand and detect, thereby can confirm the concrete leakage point of gas leakage pneumatic cylinder.

As a possible case, in order to improve the accuracy of the leakage point of the hydraulic cylinder, when the relevant person carries out the movement detection along the leaked hydraulic cylinder by holding the detection head 40, the relevant person can wear the earphone to monitor the leakage sound, and the closer to the leakage point, the more obvious the leakage sound is.

To sum up, the utility model discloses pneumatic cylinder leakproofness testing arrangement can detect a plurality of pneumatic cylinders simultaneously, and detection efficiency is high, and can confirm to reveal the point, need not to dry and rust-resistant treatment to the pneumatic cylinder simultaneously, avoids the impaired condition of pneumatic cylinder to take place.

In the description of the present specification, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (6)

1. A hydraulic cylinder tightness testing device is characterized by comprising a testing box, an inflating mechanism, an electric sliding table, an ultrasonic leak detector, an ultrasonic measuring instrument and a controller,

the inflation mechanism is arranged on the test box, and an inflation end of the inflation mechanism penetrates through the upper surface of the test box and is positioned inside the test box;

the electric sliding table is arranged on the inner top wall of the test box;

the ultrasonic leak detector is arranged on the sliding table of the electric sliding table and is connected with a detection head;

the ultrasonic measuring instrument is arranged on the inner wall of the test box;

the controller is installed on the test box, just the controller respectively with aerify mechanism, electronic slip table, ultrasonic leak detector and ultrasonic measuring appearance and link to each other.

2. The hydraulic cylinder tightness testing device according to claim 1, wherein the inflation mechanism comprises an inflator, a flow detector, a manifold and a plurality of air guide hoses, wherein,

the inflator is arranged on the test box, and an inflation tube of the inflator penetrates through the upper surface of the test box and is communicated with the flow detector;

the flow detector is communicated with an air inlet of the multi-way pipe fitting;

and a plurality of air outlets of the multi-way pipe fittings are respectively communicated with the air guide hose correspondingly.

3. The hydraulic cylinder tightness testing device according to claim 2, wherein the multi-way pipe fitting is composed of a vertical pipe, a horizontal pipe and a plurality of connecting pipes, and the multi-way pipe fitting has an air inlet and a plurality of air outlets.

4. Hydraulic cylinder tightness testing device according to claim 1, characterized in that the inner bottom wall of said testing box is fitted with a plurality of U-shaped plates.

5. The hydraulic cylinder tightness testing device according to claim 1, wherein a box door is hinged to the front surface of the testing box through a hinge, and a viewing window is arranged on the surface of the box door.

6. The hydraulic cylinder tightness testing device according to claim 2, wherein the flow detector is a gas flow meter.

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