CN110261047B - Special pressure testing equipment of sleeper beam plug-in components - Google Patents
Special pressure testing equipment of sleeper beam plug-in components Download PDFInfo
- Publication number
- CN110261047B CN110261047B CN201910385537.7A CN201910385537A CN110261047B CN 110261047 B CN110261047 B CN 110261047B CN 201910385537 A CN201910385537 A CN 201910385537A CN 110261047 B CN110261047 B CN 110261047B
- Authority
- CN
- China
- Prior art keywords
- gas transmission
- plug
- gas
- support
- sealing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses special pressure test equipment for a sleeper beam plug-in unit, which comprises a cover plate sealing device for sealing an axial groove and a side wall sealing device for sealing a closed cavity formed by a side wall through hole; and all the side wall sealing devices are alternatively provided with gas transmission pipelines communicated with the closed cavity for inflating or exhausting the closed cavity, and the gas transmission pipelines are provided with control valves and pressure detection pieces. Starting a cover plate sealing device to seal the axial grooves, and then starting a side wall sealing device to seal all side wall through holes to form a closed cavity; then adjusting the control valve to enable the gas transmission pipeline to inflate the closed cavity, detecting whether the closed cavity keeps the current pressure for a period of time after being filled with gas by the pressure detection piece, and if so, proving that the gas tightness is better; if not, the product is not qualified; and then the control valve is adjusted to enable the gas transmission pipeline to discharge the gas in the closed cavity. The special pressure test equipment for the sleeper beam plug-in components can conveniently carry out comprehensive air tightness test on the sleeper beam plug-in components, and the test result is reliable.
Description
Technical Field
The invention relates to the field of sleeper beam plug-in detection, in particular to special pressure test equipment for sleeper beam plug-ins.
Background
With the development of rail transit vehicles towards intellectualization and high speed, the quality requirement of a sleeper beam for supporting the rail transit vehicles to run is improved, and accordingly, the improvement of the quality of a sleeper beam plug-in mounted on the sleeper beam is particularly necessary.
The existing sleeper beam plug-in unit comprises a plug-in unit flange and a plug-in unit main body which are coaxially arranged, wherein the plug-in unit flange is fixedly arranged at one end of the plug-in unit main body, and the outer diameter of the plug-in unit flange is larger than that of the plug-in unit main body. In addition, the sleeper beam plug-in components still including locating the plug-in components flange with the axial recess of plug-in components main part center, and a plurality of locate the plug-in components main part and along the lateral wall through-hole that plug-in components main part thickness direction runs through, the lateral wall through-hole specifically includes relative left side through-hole and the right side through-hole that sets up.
According to the installation position and the using occasion of the sleeper beam plug-in unit, in order to improve the quality of the sleeper beam plug-in unit, the air tightness of the sleeper beam plug-in unit needs to be detected. The existing air tightness detection of the sleeper beam plug-in is generally carried out on defects such as shrinkage porosity and pinholes of the sleeper beam plug-in by means of detection methods such as penetrant inspection, but the method is difficult to detect the sleeper beam plug-in comprehensively and accurately, and the reliability of a detection result is low.
Disclosure of Invention
In view of this, the invention aims to provide a special pressure test device for a sleeper beam plug-in unit, which can comprehensively detect the sleeper beam plug-in unit and has a reliable detection result.
The specific scheme is as follows:
the invention provides a special pressure test device for a sleeper beam plug-in component, which comprises:
a cover plate sealing device for sealing the axial groove;
at least one side wall sealing device for sealing the side wall through hole to form a closed cavity by matching with the cover plate sealing device; a gas transmission pipeline communicated with the closed cavity for inflating or exhausting the closed cavity is alternatively arranged on all the side wall sealing devices, and the gas transmission pipeline is provided with a control valve for controlling the on-off of the gas transmission pipeline;
and the pressure detection piece is arranged on the gas transmission pipeline and used for detecting the pressure of the closed cavity.
Preferably, the control valve is provided with a gas transmission interface connected with the gas transmission pipeline, the control valve is further provided with an inflation interface, an exhaust interface and a detection interface, the inflation interface is selectively communicated with the gas transmission interface, the inflation interface is used for being connected with the gas storage tank to inflate the closed cavity through the gas transmission interface, the exhaust interface is used for being connected with the gas collection tank to collect exhaust gas exhausted from the closed cavity through the gas transmission interface, and the detection interface is connected with the pressure detection piece to detect the pressure of the closed cavity.
Preferably, the support base is used for supporting the sleeper beam insert; the side wall sealing device comprises a left side sealing device, and the left side sealing device comprises:
the gas transmission joint is connected with the gas transmission pipeline; the free end of the gas transmission joint is provided with a gas transmission plug for sealing the through hole on the left side;
the gas transmission support is arranged on the support base and used for supporting the gas transmission joint to move along the support base so that the gas transmission plug is close to or far away from the through hole on the left side.
Preferably, the cap plate sealing means comprises:
the piston cylinder is arranged above the axial groove, and a cover plate which is used for abutting against the notch of the axial groove is arranged at the end part of the piston cylinder;
a down-pressure pipeline connected with the rodless cavity of the piston cylinder;
a lifting pipeline connected with the rod cavity of the piston cylinder;
the reversing valve is connected with the lower pressure pipeline and the ascending pipeline through a connector at one end respectively, and is connected with the air inlet pipeline through a connector at the other end; when the reversing valve is in the first position, gas flowing out of the gas inlet pipeline flows into the rodless cavity through the pressing pipeline to drive the cover plate to press the axial groove; when the reversing valve is in the second position, gas flowing out of the gas inlet pipeline flows into the rod cavity through the ascending pipeline to drive the cover plate to be far away from the axial groove.
Preferably, the side wall sealing means comprises a right side sealing means disposed opposite the left side sealing means, the right side sealing means comprising:
the plug support is slidably arranged on the support base; the plug support is fixedly provided with a sealing plug for sealing the through hole on the right side;
the driving support is fixedly arranged on the supporting base;
and the plug driving piece is arranged on the driving support, is fixedly connected with the plug support and is used for driving the sealing plug to be close to or far away from the right through hole.
Preferably, the method further comprises the following steps:
and the guide device is fixedly arranged on the support base and is respectively matched with the gas transmission support and the plug support so as to respectively guide the gas transmission support and the plug support to move.
Preferably, the method further comprises the following steps:
a position detecting member provided on the support base for detecting whether the sleeper beam insert is in a target position;
and the controller is respectively connected with the position detection piece and the reversing valve, and controls the reversing valve to be switched to a first position according to a signal sent by the position detection piece so that the cover plate seals the axial groove.
Preferably, the method further comprises the following steps:
the axial sealing detection piece is connected with the controller and is arranged on a notch of the axial groove to detect whether the axial groove is sealed;
the gas transmission driving piece is respectively connected with the controller and the gas transmission support to drive the gas transmission support to move; the controller is used for driving the gas transmission driving piece to drive the gas transmission support to drive the gas transmission plug to seal the left through hole after the axial groove is sealed according to the signal sent by the axial sealing detection piece.
Preferably, the method further comprises the following steps:
a left side sealing detection member connected with the controller and arranged in the left side through hole for detecting whether the left side through hole is sealed;
the plug driving piece is connected with the controller, and the controller is used for driving the plug driving piece to push the plug support to drive the plug support to seal the right through hole according to a signal sent by the left sealing detection piece after the left through hole is sealed.
Preferably, the method further comprises the following steps:
the right sealing detection piece is connected with the controller and is arranged in the right through hole to detect whether the right through hole is sealed; the controller adjusts the control valve according to a signal sent by the right sealing element so that the gas transmission interface is respectively communicated with the gas charging interface and the detection interface;
the controller is connected with the pressure detection part, and the controller regulates the control valve again to disconnect the gas transmission interface and the gas charging interface when the pressure of the closed cavity is higher than the preset pressure according to the signal sent by the pressure detection part;
and the controller adjusts the control valve according to a signal sent by the timer after the pressure detection part keeps the preset time so as to connect the exhaust interface with the gas transmission interface and control the reversing valve to be switched to the second position.
Compared with the background art, the special pressure test equipment for the sleeper beam insert provided by the invention comprises a cover plate sealing device and a side wall sealing device.
During detection, the cover plate sealing device is started, and the axial groove is sealed by the cover plate sealing device; then starting the side wall sealing device to seal all the side wall through holes so as to form a closed cavity; then, adjusting a control valve, inflating the closed cavity by using a gas transmission pipeline to ensure that the closed cavity has certain pressure, and closing the control valve after the closed cavity is filled with gas; then, adjusting the control valve to enable the closed cavity to keep the current pressure, detecting whether the closed cavity can keep the current pressure within a period of time by using the pressure detection piece, and if so, proving that the air tightness of the closed cavity is better; if not, the air tightness of the closed cavity is proved to be poor; and finally, adjusting the control valve, and exhausting gas in the closed cavity by using the gas transmission pipeline so as to finish the gas tightness detection of the sleeper beam plug-in.
According to the invention, the airtightness of the sleeper beam plug-in is detected by measuring the airtightness of the closed cavity, so that the sleeper beam plug-in can be conveniently and comprehensively detected, and the accuracy of the detection result is naturally improved, therefore, the detection result of the special pressure test equipment for the sleeper beam plug-in is more reliable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a cross-sectional structural view of a special pressure test device for a sleeper beam insert according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of the bolster insert of FIG. 1;
FIG. 3 is a top view of the support base, left side seal and right side seal of FIG. 1;
fig. 4 is a hydraulic schematic of the piston drive assembly.
The reference numbers are as follows:
the axial groove 01, the side wall through hole 02 and the closed cavity 03;
left via 021 and right via 022;
the device comprises a cover plate sealing device 1, a left side sealing device 21, a right side sealing device 22, a gas transmission pipeline 3, a control valve 4, a pressure detection piece 5 and a support base 6;
a gas transmission joint 211, a gas transmission plug 212 and a gas transmission support 213;
a piston cylinder 11, a piston drive assembly 12 and a cover plate 13;
a hold-down line 121, a rise line 122, a directional valve 123, and an intake line 124;
a plug support 221, a sealing plug 222, a drive support 223 and a plug drive 224;
drive sleeve 2241, drive lever 2242 and rotary hand wheel 2243.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific examples.
Fig. 1 is a cross-sectional structural view of a special pressure test device for a sleeper beam insert according to an embodiment of the present invention; FIG. 2 is a cross-sectional view of the bolster insert of FIG. 1; FIG. 3 is a top view of the support base, left side seal and right side seal of FIG. 1.
The embodiment of the invention discloses special pressure test equipment for a sleeper beam plug-in component, which comprises a cover plate sealing device 1 and a side wall sealing device.
The cover plate sealing device 1 is provided with a cover plate 13 capable of blocking the notch of the axial groove 01, so that the axial groove 01 is sealed. The cover sealing device 1 includes a cover driving member for driving the cover 13 to move close to or away from the axial groove 01, and the cover driving member may be a pneumatic type, a hydraulic type, an electric type, an electromagnetic type, or the like, and the operation principle thereof is not limited in detail herein.
The number of the side wall sealing devices is specifically set according to the number of the side wall through holes 02 on the side face of the sleeper beam plug-in unit, the side wall sealing devices and the side wall through holes 02 are ensured to be in one-to-one correspondence, each side wall sealing device can be used for sealing one side wall through hole 02, and therefore the cover plate sealing device 1 and the side wall sealing devices are matched together to form a closed cavity 03.
All the side wall sealing devices are alternatively provided with the air conveying pipeline 3, namely one side wall sealing device is provided with the air conveying pipeline 3. The gas transmission pipeline 3 is communicated with the closed cavity 03 so as to inflate or exhaust the closed cavity 03 by using the gas transmission pipeline 3, and correspondingly, the gas transmission pipeline 3 is also provided with a control valve 4 so as to control the on-off of the gas transmission pipeline 3.
The gas transmission pipeline 3 is provided with a pressure detection piece 5 so as to detect the pressure of the gas transmission pipeline 3 and detect the pressure of the closed cavity 03 connected with the gas transmission pipeline 3. Preferably, the pressure detecting member 5 may be a common pressure gauge, and may also be a pressure detecting sensor, which is not limited herein.
During detection, the cover plate sealing device 1 is started, and the axial groove 01 is sealed by the cover plate sealing device 1; then, the side wall sealing device is started to seal all the side wall through holes 02 to form a closed cavity 03; then, adjusting the control valve 4, and inflating the closed cavity 03 by using the gas transmission pipeline 3, wherein the closed cavity 03 filled with gas has certain pressure; after the closed cavity 03 is filled with gas, adjusting the control valve 4 to enable the closed cavity 03 to keep the current pressure, detecting the pressure of the closed cavity 03 by using the pressure detection part 5, judging whether the closed cavity 03 can keep the current pressure within a period of time, and if so, proving that the air tightness of the closed cavity 03 is better; if not, the air tightness of the closed cavity 03 is proved to be poor; and finally, adjusting the control valve 4, and discharging the gas in the closed cavity 03 by using the gas transmission pipeline 3, thereby completing the gas tightness detection of the sleeper beam plug-in.
In conclusion, the special pressure test equipment for the sleeper beam plug-in component can conveniently carry out comprehensive air tightness detection on the sleeper beam plug-in component, and the detection result is more accurate, so that the detection result is more reliable.
In order to improve the convenience of operation, the control valve 4 is preferably a four-way control valve integrating inflation, exhaust and detection functions, specifically, the control valve 4 has a gas transmission interface 41 connected with the gas transmission pipeline 3, and the control valve 4 further has an inflation interface 42, an exhaust interface 43 and a detection interface 44 selectively communicated with the gas transmission interface 41.
The inflation interface 42 is connected with the gas storage tank, when the inflation interface 42 is communicated with the gas transmission interface 41, the exhaust interface 43 is disconnected with the gas transmission interface 41, and gas in the gas storage tank flows into the closed cavity 03 through the gas transmission interface 41, so that the closed cavity 03 is inflated; the detection interface 44 is connected with the pressure detection part 5, so that the pressure detection part 5 detects the pressure of the closed cavity 03 through the gas transmission interface 41.
The exhaust interface 43 is connected with the gas collecting tank, when the exhaust interface 43 is communicated with the gas transmission interface 41, the inflation interface 42 is disconnected with the gas transmission interface 41, and gas in the closed cavity 03 flows into the gas collecting tank through the exhaust interface 43, so that the closed cavity 03 exhausts the gas, the gas exhausted by the closed cavity 03 can be recycled, and resources are saved.
In addition, an inflation valve is arranged between the inflation interface 42 and the gas storage tank, an exhaust valve is arranged between the exhaust interface 43 and the gas collection tank, and both the inflation valve and the exhaust valve can be manual valves, of course, the inflation valve and the exhaust valve can also be electric control valves, but not limited to these.
It should be noted here that the connection mode of the gas transmission pipeline 3 and the control valve 4 is not limited to the above type, and of course, the gas transmission pipeline 3 may also include a gas charging pipeline and a gas discharging pipeline respectively connected to the closed cavity 03, the gas charging pipeline is connected to the gas storage tank, and the gas discharging pipeline is connected to the gas collecting tank, and correspondingly, the control valve 4 may also include a gas charging valve arranged on the gas charging pipeline and a gas discharging valve arranged on the gas discharging pipeline, wherein the pressure detecting member 5 is installed on the gas charging pipeline, and when detecting the pressure of the closed cavity 03, the gas charging valve and the gas discharging valve are closed at the same time, and the pressure of the closed cavity 03 can still be detected.
The invention also comprises a supporting base 6 for supporting the sleeper beam plug-in unit, and the supporting base 6 is fixedly arranged on the workbench plate. Preferably, the sidewall sealing device includes a left sealing device 21 for sealing the left through hole 021, and the left sealing device 21 includes a gas transmission connector 211, a gas transmission plug 212 and a gas transmission support 213. One end of the gas transmission joint 211 is connected with the gas transmission pipeline 3, the other end of the gas transmission joint 211 is connected with the gas transmission plug 212, and the gas transmission joint 211 and the gas transmission plug 212 are both provided with axial gas transmission holes so as to communicate the gas transmission pipeline 3 with the closed cavity 03. The gas transmission joint 211 is fixed on the gas transmission support 213, and the gas transmission support 213 is seated on the support base 6, so that the gas transmission support 213 can drive the gas transmission joint 211 to be close to or far from the left through hole 021 along the support base 6, and the gas transmission joint 211 is close to or far from the left through hole 021. Correspondingly, the air transmission pipeline 3 needs to have certain elasticity to realize expansion and contraction by matching with the movement of the air transmission joint 211, and the air transmission pipeline 3 can be a nylon pipe or a rubber pipe. It should be noted that, in order to ensure the sealing performance, the air delivery plug 212 is preferably a rubber plug having a certain elasticity, so that the air delivery plug 212 is fully abutted against the inner side surface of the left through hole 021 by utilizing the elastic deformation, thereby improving the sealing performance of the closed cavity 03. Gas transmission support 213 is the L type, including vertical support portion and horizontal sliding portion, and vertical support portion is equipped with the fixed recess that is used for fixed gas transmission to connect 211. Of course, the structures of the gas transmission joint 211, the gas transmission plug 212 and the gas transmission support 213 are not limited thereto.
Preferably, the cover plate sealing device 1 comprises a piston cylinder 11 and a piston driving assembly 12, the piston cylinder 11 is preferably a single-acting cylinder, and the piston cylinder 11 is arranged right above the axial groove 01, so that a piston rod of the piston cylinder 11 can be lifted relative to the sleeper beam insert, and correspondingly, the cover plate 13 is fixed at the free end of the piston rod, so that the cover plate 13 is lifted relative to a notch of the axial groove 01.
Preferably, the piston cylinder 11 is fixed by a support frame fixedly arranged on the support base 6. Specifically, the support frame includes support flat and two piece at least support posts, and the support flat sets firmly in support post top, and the support flat has and runs through in order to fix the fixed orifices of piston cylinder 11 along thickness direction.
Referring to fig. 4, fig. 4 is a hydraulic schematic diagram of the piston driving assembly.
The piston drive assembly 12 comprises a down pressure line 121, a riser line 122, a directional valve 123 and an air inlet line 124, wherein the down pressure line 121 is connected to the rodless cavity of the piston cylinder 11 and the riser line 122 is connected to the rod cavity of the piston cylinder 11. The reversing valve 123 has one end connected to the pressing line 121 and the lifting line 122, and the other end connected to the air inlet line 124, wherein the air inlet line 124 is connected to an air source such as an air storage tank.
Preferably, the reversing valve 123 is a two-position four-way reversing valve, when the reversing valve 123 is in the first position, the air inlet pipeline 124 is communicated with the downward pressing pipeline 121, air flowing out of the air inlet pipeline 124 flows into the downward pressing pipeline 121 and then flows into the rodless cavity through the downward pressing pipeline 121, the air drives the piston rod to extend out, and the piston rod drives the cover plate 13 to press the axial groove 01; when the reversing valve 123 is at the second position, the air inlet pipeline 124 is communicated with the ascending pipeline 122, the air flowing out of the air inlet pipeline 124 flows into the ascending pipeline 122 and then flows into the rod cavity through the ascending pipeline 122, the air drives the piston rod to contract, and the piston rod drives the cover plate 13 to be far away from the axial groove 01. The direction valve 123 may be a manual direction valve or an electromagnetic direction valve.
To improve safety, the push-down line 121 is provided with a one-way throttle valve to control the gas flow rate of the push-down line 121. The one-way throttle valve is formed by combining a throttle valve and a one-way valve which are connected in parallel, wherein the inlet of the one-way valve is connected with the outlet of the throttle valve, and the outlet of the one-way valve is connected with the inlet of the throttle valve.
Of course, the piston driving member can be driven by a hydraulic pump or a motor to realize lifting.
Preferably, the side wall sealing device comprises a right side sealing device 22 opposite to the left side sealing device 21, and the right side sealing device 22 comprises a plug support 221, a sealing plug 222, a driving support 223 and a plug driving member 224, wherein the plug support 221 is slidably mounted on the support base 6, that is, the support base 6 can slide along the support base 6. The sealing plug 222 is fixedly arranged on the plug support 221, specifically, the sealing plug 222 is detachably fixed on the plug support 221 through threaded connection, one end of the sealing plug 222 close to the right through hole 022 is arranged on an elastic plug cap abutted against the right through hole 022, and the elastic plug cap is preferably made of rubber or nylon, so that the elastic plug cap is abutted against the inner side surface of the right through hole 022 through elastic deformation, the right through hole 022 is fully plugged, and the sealing performance of the closed cavity 03 is improved. The plug support 221 is L-shaped, and the vertical portion is used for supporting the sealing plug 222, and the horizontal portion is used for sliding along the support base 6.
The driving support 223 is fixed to the supporting base 6, and is L-shaped. The plug driving member 224 is mounted on the driving support 223 and fixedly connected to the plug support 221 so as to drive the plug support 221 to slide along the supporting base 6, so that the plug support 221 drives the sealing plug 222 to move closer to or away from the right through hole 022.
Preferably, the plug driving member 224 includes a driving sleeve 2241, a driving rod 2242 and a rotating handwheel 2243, wherein the driving sleeve 2241 is fixedly arranged on the driving support 223, the driving rod 2242 is arranged on the driving sleeve 2241, and the driving rod 2242 and the driving sleeve 2241 are connected through a thread. One end of the driving rod 2242 is fixedly connected with the plug support 221, and the other end of the driving rod 2242 is connected with the rotating hand wheel 2243, so that the driving rod 2242 is pushed to drive the plug support 221 to move by rotating the rotating hand wheel 2243.
It should be noted that the plug driving member 224 may be driven by a motor in addition to the manual driving, and the rotating hand wheel 2243 is replaced by the motor, which is beneficial to automation.
In order to make the gas transmission support 213 and the choke plug support 221 stably move, the present invention further includes a guide device fixedly installed on the support base 6, and the guide device is respectively engaged with the bottom of the gas transmission support 213 and the bottom of the choke plug support 221 so as to respectively guide the gas transmission support 213 and the choke plug support 221 to move. In this embodiment, the guiding device includes a horizontal guiding rail fixed on the supporting base 6, and the horizontal guiding rail and the gas transmission support 213 and the horizontal guiding rail and the plug support 221 are matched through a guiding hole and a guiding groove, so as to limit the gas transmission support 213 and the plug support 221 to move along a straight line, and further, the gas transmission plug 212 and the right through hole 022 and the sealing plug 222 and the left through hole 021 are accurately matched, and the reliability is improved.
In order to enable the cover plate 13 to automatically approach or depart from the axial groove 01, the invention further comprises a position detection piece and a controller, wherein the position detection piece is arranged on the supporting base 6 and is used for detecting whether the sleeper beam plug-in piece is located at a target position, and the target position refers to that the sleeper beam plug-in piece is located between the gas transmission plug 212 and the sealing plug 222. The position detection device may be an obstacle detection sensor, a pressure detection sensor, an infrared detection sensor, or the like, and is not particularly limited.
The controller is respectively connected with the position detection part and the reversing valve 123, and the controller controls the reversing valve 123 to be switched to the first position according to signals sent by the position detection part so that the cover plate 13 seals the axial groove 01. Specifically, when the position detection piece detects that the sleeper beam plug-in is arranged at the target position, the position detection piece sends a signal to the controller, the controller controls the reversing valve 123 to be electrified, so that the reversing valve 123 is switched to the first position, the air inlet pipeline 124 is communicated with the downward pressing pipeline 121, and the piston cylinder 11 is pushed to drive the cover plate 13 to press the axial groove 01; otherwise, the reversing valve 123 is in a power-off state, and the cover plate 13 is kept stationary, so that the cover plate 13 is lifted, automation is preliminarily realized, and the detection efficiency is improved.
In order to realize the automatic sealing of the left through hole 021 by the gas transmission plug 212, the invention further comprises an axial sealing detection part and a gas transmission driving part which are respectively connected with the controller, wherein the axial sealing part is arranged on the notch of the axial groove 01 to detect whether the axial groove 01 is sealed, if so, a signal is sent to the controller, and if not, the signal is not generated. The axial sealing member may be an image recognition device such as a camera or a video camera, but is not particularly limited thereto
The gas transmission driving member is connected with the gas transmission support 213 so as to drive the gas transmission support 213 to move. Preferably, the gas transmission driving member may be embodied as a servo motor, but is not limited thereto. When the axial sealing detection piece detects that the axial groove 01 is sealed completely, the controller drives the gas transmission driving piece according to a signal sent by the axial sealing detection piece, the gas transmission driving piece is driven to drive the gas transmission support 213 to move, and the gas transmission support 213 drives the gas transmission plug 212 to seal the left through hole 021, so that the left through hole 021 is automatically plugged, and the automation is further improved.
In order to enable the sealing plug 222 to automatically seal the right through hole 022, the present invention further includes a left sealing detection part connected to the controller, wherein the left sealing detection part is disposed in the left through hole 021 and is used for detecting whether the left through hole 021 is sealed, if so, the left sealing part sends a signal to the controller, otherwise, the left sealing part does not send a signal.
Correspondingly, the controller is connected with the plug driver 224, when the left sealing detector detects that the left through hole 021 is sealed completely, the controller drives the plug driver 224 according to a signal sent by the left sealing detector, the plug driver 224 drives the plug support 221, and the plug support 221 drives the sealing plug 222 to seal the right through hole 022.
In order to further realize automation, the invention also comprises a right side sealing detection piece connected with the controller, and the right side sealing detection piece is arranged on the right side through hole 022 so as to detect whether the right side through hole 022 is sealed or not. When the right sealing detection piece detects that the right through hole 022 is sealed completely, the controller adjusts and controls the valve 4 according to a signal sent by the right sealing detection piece, so that the gas transmission interface 41 is respectively communicated with the gas filling interface 42 and the detection interface 44, and the closed cavity 03 is filled with gas.
When the pressure detection part 5 is a pressure detection sensor, the pressure detection part 5 is connected with the controller, when the pressure detection part 5 detects that the current pressure of the closed cavity 03 is higher than the preset pressure, the closed cavity 03 is filled with a certain amount of gas, the pressure detection part 5 sends a signal to the controller, and the controller regulates the control valve 4 again to disconnect the gas transmission interface 41 and the gas inflation interface 42 and stop gas inflation. It should be noted that the gas transmission port 41 and the gas exhaust port 43 are also disconnected, so that the closed cavity 03 is kept pressure. The preset pressure here may be a standard pressure for the sleeper beam insert to achieve the airtightness test.
The invention also comprises a timer which is respectively connected with the pressure detection part 5 and the controller, wherein the timer is used for recording the time of the pressure maintaining state of the closed cavity 03, when the pressure of the closed cavity 03 is maintained to the preset time, the timer sends a signal to the controller, and the controller adjusts the control valve according to the signal sent by the timer, so that the exhaust interface 43 is connected with the gas transmission interface 41, and the exhaust of the closed cavity 03 is realized; meanwhile, the controller controls the reversing valve 123 to switch to the second position, so that the air inlet pipeline 124 is communicated with the ascending pipeline 122, the piston cylinder 11 drives the cover plate 13 to be away from the axial groove 01, accordingly, the air delivery plug 212 is away from the left through hole 021, and the sealing plug 222 is away from the right through hole 022. Therefore, automatic inflation, automatic pressure maintaining and automatic exhaust are realized, the automation degree is higher, and the detection efficiency is higher.
The working principle of the special pressure test equipment for the sleeper beam plug-in component provided by the invention is as follows:
placing a sleeper beam plug-in to be detected on a support bottom plate;
starting the reversing valve 123, enabling the air inlet pipeline 124 to be communicated with the downward pressing pipeline 121, enabling the piston cylinder 11 to extend out, enabling the piston rod to drive the cover plate 13 to press the notch of the axial groove 01, and enabling the axial groove 01 to be sealed;
pushing the gas transmission support 213, the gas transmission joint 211 drives the gas transmission plug 212 to press the left through hole 021, and the left through hole 021 is sealed;
the rotating hand wheel 2243 is rotated, the driving rod 2242 pushes the driving support 223 to lean against the sleeper beam plug-in unit, the driving support 223 drives the plug support 221 to move along the supporting base 6, the plug support 221 drives the sealing plug 222 to seal the right through hole 022, and the right through hole 022 is sealed, so that a sealed cavity 03 is formed;
the control valve 4 is adjusted, the inflation port 42 is communicated with the gas transmission port 41, and the cavity 03 is sealed to realize inflation; the pressure detection part 5 detects the pressure in the closed cavity 03 in real time in the inflation process, when the current pressure of the closed cavity 03 reaches the preset pressure, the control valve 4 is adjusted again, and the inflation interface 42 is disconnected with the gas transmission interface 41;
the closed cavity 03 is kept at a preset pressure for a period of time; after a period of time, when the closed cavity 03 continuously maintains the preset pressure, the air tightness of the sleeper beam plug-in is good; when the pressure in the closed cavity 03 is lower than the preset pressure, the air tightness of the sleeper beam plug-in is poor;
after the detection is finished, the control valve 4 is adjusted, the exhaust port 43 is communicated with the gas transmission port 41, and the cavity 03 is sealed to exhaust;
the reversing valve 123 is adjusted again, the air inlet pipeline 124 is communicated with the ascending pipeline 122, the piston cylinder 11 contracts, and the piston rod drives the cover plate 13 to be away from the notch of the axial groove 01 until the cover plate 13 is reset;
the gas transmission support 213 is pushed reversely, and the gas transmission joint 211 drives the gas transmission plug 212 to be far away from the left through hole 021;
the rotating hand wheel 2243 is rotated reversely, the plug support 221 drives the sealing plug 222 to be far away from the right through hole 022, and the sleeper beam plug-in to be tested is loosened;
taking out the detected sleeper beam plug-in unit;
all the sleeper beam plug-in components can be detected by the aid of the cyclic reciprocating mode, and when automatic detection is achieved by the aid of the controller, automatic detection can be achieved only by starting a switch after the sleeper beam plug-in components to be detected are placed.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (2)
1. The utility model provides a special pressure testing equipment of sleeper beam plug-in components which characterized in that includes:
a cover plate sealing device (1) for sealing the axial groove (01);
at least one side wall sealing device for sealing the side wall through hole (02) to form a closed cavity (03) by matching with the cover plate sealing device (1); all the side wall sealing devices are alternatively provided with gas transmission pipelines (3) which are communicated with the closed cavity (03) to inflate or exhaust the closed cavity (03), and the gas transmission pipelines (3) are provided with control valves (4) used for controlling the on-off of the gas transmission pipelines (3); the control valve (4) is provided with a gas transmission interface (41) connected with the gas transmission pipeline (3), the control valve (4) is further provided with an inflation interface (42), an exhaust interface (43) and a detection interface (44) which are selectively communicated with the gas transmission interface (41), the inflation interface (42) is used for being connected with a gas storage tank to inflate the closed cavity (03) through the gas transmission interface (41), the exhaust interface (43) is used for being connected with the gas storage tank to collect exhaust gas exhausted from the closed cavity (03) through the gas transmission interface (41), and the detection interface (44) is connected with a pressure detection piece (5) to detect the pressure of the closed cavity (03);
the pressure detection piece (5) is arranged on the gas transmission pipeline (3) and is used for detecting the pressure of the closed cavity (03);
a support base (6) for supporting the bolster insert;
the cover plate sealing device (1) comprises a piston cylinder (11) and a piston driving assembly (12), wherein the piston cylinder (11) and the piston driving assembly are arranged above the axial groove (01), and a cover plate (13) which is used for abutting against a notch of the axial groove (01) is arranged at the end part of the piston cylinder (11); the piston drive assembly (12):
a down-pressure pipeline (121) connected with the rodless cavity of the piston cylinder (11); the pressing pipeline (121) is provided with a one-way throttle valve for controlling the flow rate of gas;
a riser pipe (122) connected to the rod cavity of the piston cylinder (11);
the reversing valve (123) is connected with the pressing pipeline (121) and the ascending pipeline (122) through a connector at one end respectively, and is connected with the air inlet pipeline (124) through a connector at the other end; when the reversing valve (123) is in the first position, gas flowing out of the gas inlet pipeline (124) flows into the rodless cavity through the lower pressing pipeline (121) to drive the cover plate (13) to press towards the axial groove (01); when the direction valve (123) is in the second position, the gas flowing out of the gas inlet pipe (124) flows into the rod chamber through the rising pipe (122) to drive the cover plate (13) away from the axial groove (01);
the side wall sealing device comprises a left side sealing device (21) and a right side sealing device (22) arranged opposite to the left side sealing device (21), and the left side sealing device (21) comprises an air conveying joint (211) connected with the air conveying pipeline (3) and an air conveying support (213) arranged on the supporting base (6); the free end of the gas transmission joint (211) is provided with a gas transmission plug (212) for sealing the left through hole (021); the gas transmission support (213) is used for supporting the gas transmission joint (211) to move along the supporting base (6) so that the gas transmission plug (212) is close to or far away from the left through hole (021); the right sealing device (22) comprises a plug support (221) which is slidably mounted on the support base (6), a driving support (223) which is fixedly mounted on the support base (6), and a plug driving piece (224) which is mounted on the driving support (223) and fixedly connected with the plug support (221), wherein a sealing plug (222) for sealing a right through hole (022) is fixedly mounted on the plug support (221), and the plug driving piece (224) is used for driving the sealing plug (222) to be close to or far away from the right through hole (022);
the guiding devices are fixedly arranged on the supporting base (6) and respectively matched with the gas transmission support (213) to guide the gas transmission support (213) to move;
the position detection piece is arranged on the support base (6) and used for detecting whether the sleeper beam plug-in is located at a target position;
the controller is respectively connected with the position detection piece and the reversing valve (123), and the controller controls the reversing valve (123) to be switched to a first position according to a signal sent by the position detection piece so that the cover plate (13) seals the axial groove (01);
the axial sealing detection piece is connected with the controller and is arranged on a notch of the axial groove (01) to detect whether the axial groove (01) is sealed;
the gas transmission driving piece is respectively connected with the controller and the gas transmission support (213) to drive the gas transmission support (213) to move; the controller is used for driving the gas transmission driving piece to drive the gas transmission support (213) to drive the gas transmission plug (212) to seal the left through hole (021) after the axial groove (01) is sealed according to the signal sent by the axial sealing detection piece;
a left sealing detector connected to the controller and disposed in the left through hole (021) to detect whether the left through hole (021) is sealed;
the plug driving piece (224) is connected with the controller, and the controller is used for driving the plug driving piece (224) to push the plug support (221) to drive the sealing plug (222) to seal the right through hole (022) after the left through hole (021) is sealed according to the signal sent by the left sealing detection piece;
a right sealing detector connected to the controller and provided in the right through hole (022) to detect whether the right through hole (022) is sealed; the controller adjusts the control valve (4) according to a signal sent by the right sealing detection piece so as to enable the gas transmission interface (41) to be communicated with the gas charging interface (42) and the detection interface (44) respectively;
the controller is connected with the pressure detection part (5), and the controller regulates the control valve (4) again according to a signal sent by the pressure detection part (5) when the pressure of the closed cavity (03) is higher than a preset pressure so as to disconnect the gas transmission interface (41) from the gas charging interface (42);
the controller is connected with the pressure detection part (5) and the controller respectively and used for recording the holding time of the pressure detection part (5) after the pressure of the closed cavity (03) is higher than a preset pressure, and the controller adjusts the control valve to enable the exhaust interface (43) to be connected with the gas transmission interface (41) and controls the reversing valve (123) to be switched to a second position after the pressure detection part (5) is held for the preset time according to a signal sent by the timer.
2. The sleeper beam insert dedicated pressure test apparatus of claim 1, wherein the guiding means cooperates with the plug support (221) to guide the movement of the plug support (221).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910385537.7A CN110261047B (en) | 2019-05-09 | 2019-05-09 | Special pressure testing equipment of sleeper beam plug-in components |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910385537.7A CN110261047B (en) | 2019-05-09 | 2019-05-09 | Special pressure testing equipment of sleeper beam plug-in components |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110261047A CN110261047A (en) | 2019-09-20 |
| CN110261047B true CN110261047B (en) | 2021-12-10 |
Family
ID=67914533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910385537.7A Active CN110261047B (en) | 2019-05-09 | 2019-05-09 | Special pressure testing equipment of sleeper beam plug-in components |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110261047B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829923A (en) * | 2012-09-07 | 2012-12-19 | 高精科技(苏州)有限公司 | Air tightness detecting device |
| CN203385523U (en) * | 2013-08-21 | 2014-01-08 | 山东新安凯动力科技有限公司 | Shell leakage-checking pressure-testing inspection apparatus |
| CN203455140U (en) * | 2013-09-16 | 2014-02-26 | 潍柴动力(潍坊)再制造有限公司 | Remanufacturing engine cylinder cap air tight test apparatus |
| CN205388526U (en) * | 2016-01-22 | 2016-07-20 | 福州六和机械有限公司 | Gearbox pump lid machine of leaking hunting |
| CN104236803B (en) * | 2014-09-09 | 2016-08-17 | 江苏贝孚德通讯科技股份有限公司 | Die casting duplexer performance automatic test fixture |
| CN106989871A (en) * | 2017-05-13 | 2017-07-28 | 山东益都阀门集团股份有限公司 | Valve pressure test device |
| CN108414155A (en) * | 2018-02-01 | 2018-08-17 | 湖南健兴智能科技有限公司 | A kind of cylinder cover leak test device and method |
| CN108458839A (en) * | 2018-05-03 | 2018-08-28 | 广东鸿图科技股份有限公司 | A kind of engine front cover assembly leakage detection apparatus and method |
-
2019
- 2019-05-09 CN CN201910385537.7A patent/CN110261047B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829923A (en) * | 2012-09-07 | 2012-12-19 | 高精科技(苏州)有限公司 | Air tightness detecting device |
| CN203385523U (en) * | 2013-08-21 | 2014-01-08 | 山东新安凯动力科技有限公司 | Shell leakage-checking pressure-testing inspection apparatus |
| CN203455140U (en) * | 2013-09-16 | 2014-02-26 | 潍柴动力(潍坊)再制造有限公司 | Remanufacturing engine cylinder cap air tight test apparatus |
| CN104236803B (en) * | 2014-09-09 | 2016-08-17 | 江苏贝孚德通讯科技股份有限公司 | Die casting duplexer performance automatic test fixture |
| CN205388526U (en) * | 2016-01-22 | 2016-07-20 | 福州六和机械有限公司 | Gearbox pump lid machine of leaking hunting |
| CN106989871A (en) * | 2017-05-13 | 2017-07-28 | 山东益都阀门集团股份有限公司 | Valve pressure test device |
| CN108414155A (en) * | 2018-02-01 | 2018-08-17 | 湖南健兴智能科技有限公司 | A kind of cylinder cover leak test device and method |
| CN108458839A (en) * | 2018-05-03 | 2018-08-28 | 广东鸿图科技股份有限公司 | A kind of engine front cover assembly leakage detection apparatus and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110261047A (en) | 2019-09-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101981048B1 (en) | Leak test apparatus of battery case for vehicle | |
| CN206281621U (en) | A kind of combustion gas valve detection device | |
| CN108871695B (en) | Leakage detection device used before lithium battery liquid injection | |
| CN203443743U (en) | Air brake valve sealing detection device | |
| CN108398218A (en) | Air-tightness detection device and detection method | |
| CN211205682U (en) | Detection device of cartridge valve | |
| CN210243114U (en) | Bellows leakproofness detection device | |
| CN103115739A (en) | High-precision cylinder airtightness detection unit | |
| CN100588930C (en) | Automatic checking device for cell leakage | |
| CN110261047B (en) | Special pressure testing equipment of sleeper beam plug-in components | |
| CN102749175A (en) | Device for testing air tightness of four-way valve | |
| CN102564703B (en) | Quality detection device for shipbuilding steel plate butt-jointed seams | |
| CN104019949A (en) | Side leakage device for air inlet pipe and mounting method thereof | |
| CN204831737U (en) | Valve automated inspection equipment | |
| CN115383439B (en) | Air bag and cover plate press-fitting method and device for small Qu Nang type air spring | |
| CN101846568B (en) | Internal pressure tester of lighter | |
| CN106762998A (en) | A kind of straight reciprocating motion arrestment mechanism | |
| CN105387978A (en) | Airtightness tester for vacuum pump assembly line | |
| CN205300876U (en) | Diaphragm valve detection device | |
| CN210571249U (en) | Auxiliary water tank leakage detection device | |
| CN203881500U (en) | Air inlet pipe leakage testing device | |
| CN107356440A (en) | ESC HCU assembly air pressure device for detecting performance | |
| CN108749808B (en) | Brake pump detection device and use method | |
| CN209745502U (en) | Car pipeline leakproofness check out test set | |
| CN108982027A (en) | A kind of lithium battery air tight test method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |