Micro-control brake tube air pressure test bench

Abstract

The utility model relates to the technical field of railway train maintenance, in particular to a micro-control movable pipe air pressure test bench, which comprises a main control cabinet, an auxiliary control cabinet and four pipe system components, every two of the four pipe system components form a group, each group of pipe system components is respectively connected with the main control cabinet and the auxiliary control cabinet, and the main control cabinet is connected with the auxiliary control cabinet. The outer surface of the main control cabinet is fixedly connected with a PLC with a displayer, a barometer, two main clamping and pressing bases and two main clamping and pressing air cylinders, and the two main clamping and pressing bases are both fixedly connected to one side of the main control cabinet. According to the utility model, the adjustable sphere center joint can rotate within the range of 60 degrees and is fixed between the jacking cylinder and the piping system pressing seat, so that the piping system pressing seat at the front end can float within the range of 60 degrees along with the adjustable sphere center joint, and the adjustable sphere center seat can rotate within the range of 60 degrees; therefore, the pipe system jacking jig at the front end can float within the range of 60 degrees along with the adjustable ball center seat.

Description

Technical Field

[0001] The utility model relates to the technical field of railway train maintenance, in particular to a micro-controlled brake pipe air pressure test bench. Background Art

[0002] The baffles for the main and auxiliary trolley brake pipe flanges on some existing brake pipe air tightness test benches are all fixed end faces. When brake pipes of different shapes are installed on the baffles, it is easy to cause the two end faces of the pipe to be pressed onto different surfaces, resulting in leakage of the pipe end faces and easy wear and damage of the sealant. These problems can easily cause slight changes in the pressure value during the test, leading to test failure. Utility Model Content

[0003] In order to avoid the failure of detection caused by poor crimping of the two end surfaces of the test tube, the utility model provides a micro-controlled brake tube air pressure test bench.

[0004] The utility model provides a micro-controlled brake tube air pressure test bench adopts the following technical solutions:

[0005] A micro-controlled brake pipe air pressure test bench includes a main control cabinet, a secondary control cabinet and four pipe system components, the four pipe system components are grouped in pairs, and each group of pipe system components is respectively connected to the main control cabinet and the secondary control cabinet. The outer surface of the main control cabinet is fixedly connected to a PLC controller with a display, a pressure gauge, two main clamping seats and two main clamping cylinders. The two main clamping seats are fixedly connected to one side of the main control cabinet, and the two main clamping cylinders are fixedly connected to the inside of the main control cabinet. The secondary control cabinet includes a parking mechanism, a lifting cylinder, a baffle, two secondary clamping cylinders, four spherical rotating assemblies and a manual rotary valve. The two secondary clamping cylinders and the four spherical rotating assemblies are fixedly connected to the baffle, and the baffle is located inside the secondary control cabinet. The pressure gauge, two main clamping cylinders, the lifting cylinder and the two secondary clamping cylinders are all communicatively connected to the PLC controller.

[0006] By adopting the above technical solution, the baffle matched with the auxiliary trolley pipe flange of the test bench is designed to be a spherical rotation connection method. The baffle pressed by the auxiliary clamping cylinder can be rotated and connected within a range of 60 degrees through a spherical rotating component, which effectively avoids the failure of the test caused by poor crimping of the two end faces of the test tube. In addition, the pressure holding value of the test in the PLC controller can be set to a floating value within the range of 0-0.5, which will not cause the test failure due to a small change in the pressure value during the test.

[0007] Preferably, the four spherical rotating components all include an adjustable spherical joint and an adjustable spherical base, the spherical surface of each adjustable spherical joint is adapted to the interior of the corresponding adjustable spherical base, each adjustable spherical joint is rotatably connected to the interior of the corresponding adjustable spherical base, the rotation angle of each adjustable spherical joint inside the corresponding adjustable spherical base is ≤60°, and a channel is opened inside each adjustable spherical base, and the ends of the two auxiliary clamping cylinder output ends are located inside the corresponding channels.

[0008] By adopting the above technical solution, both the pipe system pressing seat and the pipe system pressing fixture can be rotated up and down and left and right within a range of 60 degrees.

[0009] Preferably, the four piping assemblies each include a piping compression seat, a piping pressing jig and two piping support plates. The four piping pressing jigs are respectively fixedly connected to the two piping support plates and one end of the two main compression seats. The ends of the two main compression cylinder output shafts are fixedly connected to one end of the corresponding piping compression seat.

[0010] Preferably, two cylinder fixing plates are fixedly connected to one side of the main board, and two lifting support plates are fixedly connected to the other side of the main board. The two cylinder fixing plates, the two lifting support plates and the two pipe support plates are all arranged linearly. A threaded hole is provided at one end of the two lifting support plates, and screws are threadedly connected to the inside of the two threaded holes. One end of the screw is overlapped with the bottom of the corresponding two pipe support plates, and the four adjustable spherical center bases are respectively located above the corresponding lifting support plates.

[0011] By adopting the above technical solution, through the rotation of the screw rod and the lifting cylinder, when the pipe support plate rotates together with the baffle, the screw rod is turned so that the screw rod can be supported on the bottom of the pipe support plate to maintain the rotation angle of the pipe support plate.

[0012] Preferably, the baffle includes a main board, and the four adjustable spherical center bases are grouped in pairs, wherein one group of the adjustable spherical center bases is fixedly connected to one side of the corresponding main board, and another group of the adjustable spherical center bases is sleeved on one side of the auxiliary control cabinet, and the rotation angle of the other group of the adjustable spherical center bases inside the auxiliary control cabinet is ≤60°, and the other ends of the other two pipe system clamping seats and the two pipe system support plates are fixedly connected to the inside of the corresponding adjustable spherical center joints.

[0013] Preferably, the outer surfaces of the two auxiliary pressing cylinders are fixedly connected to the tops of the corresponding cylinder fixing plates, and the ends of the output shafts of the lifting cylinders are fixedly connected to the bottoms of the corresponding cylinder fixing plates.

[0014] By adopting the above technical solution, the lifting cylinder drives the cylinder fixing plate to rotate, thereby causing the baffle to rotate around the adjustable spherical center base, and the end faces of brake pipe flanges of different shapes can be pressed tightly before performing an airtight test.

[0015] Preferably, the parking mechanism includes four universal wheels and a top support column, the four universal wheels are fixedly connected to the bottom of the auxiliary control cabinet, and the top support column is overlapped with the bottom of the lifting cylinder.

[0016] By adopting the above technical solution, the distance between the main control cabinet and the auxiliary control cabinet is changed by the universal wheel, so that brake pipes of different shapes can be installed on the test bench.

[0017] Preferably, the manual rotary valve is fixedly connected to the outer surface of the auxiliary control cabinet, and the manual rotary valve is transmission-connected to one of the auxiliary clamping cylinders.

[0018] By adopting the above technical solution, the manual rotary valve manually assists in adjusting the pressure value, thereby achieving a small change in the pressure value.

[0019] In summary, the present invention has the following beneficial technical effects:

[0020] 1. This device is equipped with a baffle and a spherical rotating assembly. The baffle of the auxiliary trolley pipe flange of the test bench is designed to be a spherical rotating connection. The baffle pressed by the cylinder can be rotated and connected within a range of 60 degrees, which effectively avoids the failure of the test due to poor crimping of the two end faces of the test tube, and the equipment has a test holding pressure value that can be set to a floating value within the range of 0-0.5, which will not cause a small change in the pressure value during the test to cause the test failure; the adjustable spherical joint can rotate within a range of 60 degrees, and the adjustable spherical joint is fixed between the auxiliary clamping cylinder and the pipe system clamping seat, so that the front end pipe system clamping seat can float within a range of 60 degrees with the adjustable spherical joint, and the adjustable spherical seat can rotate within a range of 60 degrees. The adjustable spherical seat is fixed to the baffle, and the pipe system top pressure fixture is fixed on the adjustment ball center, so that the front end pipe system top pressure fixture can float within a range of 60 degrees with the adjustable spherical seat;

[0021] 2. This device is equipped with a lifting support plate and a screw. An adjustable lifting screw and a lifting support plate are set under the pipe pressing fixture, so that the position of the pipe pressing fixture can be raised, adjusted and fixed. Both the pipe pressing seat and the pipe pressing fixture can be rotated up and down and left and right within a range of 60 degrees. In this way, the end faces of brake pipe flanges of different shapes can be pressed together before conducting an airtight test. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the internal structure of the main control cabinet in a micro-controlled brake tube air pressure test bench of the utility model;

[0023] Figure 2This is a schematic diagram of the internal structure of the auxiliary control cabinet in a micro-controlled brake tube air pressure test bench of the utility model;

[0024] Figure 3 This is a left view of the main control cabinet in a micro-controlled brake tube air pressure test bench of the utility model;

[0025] Figure 4 This is a top view of the main control cabinet in a micro-controlled brake tube air pressure test bench of the utility model;

[0026] Figure 5 This is a top view of the auxiliary control cabinet in a micro-controlled brake tube air pressure test bench of the utility model;

[0027] Figure 6 yes Figure 2 A magnified schematic diagram of the local structure at point B in the middle;

[0028] Figure 7 yes Figure 3 Enlarged schematic diagram of the local structure at point C in the middle.

[0029] Description of reference numerals:

[0030] 1. Main control cabinet; 2. Auxiliary control cabinet; 3. Main card press seat; 4. Main card press cylinder;

[0031] 5. Parking mechanism; 51. Universal wheel; 52. Top support column; 6. Lifting cylinder;

[0032] 7. Baffle; 71. Main board; 72. Cylinder fixing plate; 73. Lifting support plate;

[0033] 8. Auxiliary clamping cylinder; 9. Pipe system pressing seat; 10. Pipe system pressing fixture;

[0034] 11. Adjustable spherical joint; 12. Adjustable spherical base; 13. Screw;

[0035] 14. Pipe support plate; 15. Manual rotary valve; 16. PLC controller. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-7 The utility model is described in further detail.

[0037] The embodiment of the utility model discloses a micro-controlled brake tube air pressure test bench.

[0038] Reference Figure 1, including a main control cabinet 1, a sub-control cabinet 2 and four pipe system components. The main control cabinet 1 is also equipped with a printer. The four pipe system components are grouped in pairs, and each group of pipe system components is respectively connected to the main control cabinet 1 and the sub-control cabinet 2. The outer surface of the main control cabinet 1 is fixedly connected with a PLC controller 16 with a display, a pressure gauge, two main clamping seats 3 and two main clamping cylinders 4. The two main clamping seats 3 are fixedly connected to one side of the main control cabinet 1, and the two main clamping cylinders 4 are fixedly connected to the inside of the main control cabinet 1. The sub-control cabinet 2 includes a parking mechanism 5, a lifting cylinder 6, a baffle 7, two sub-clamping cylinders 8, four spherical rotating components and a manual rotary valve 15. The two sub-clamping cylinders 8 and the four spherical rotating components are fixedly connected to the baffle 7, and the baffle 7 is located inside the sub-control cabinet 2.

[0039] Reference Figure 1 The pressure gauge, two main compression cylinders 4, lifting cylinder 6 and two auxiliary compression cylinders 8 are all connected to the PLC controller 16. The test bench is directly controlled by the industrial-grade PLC, and the human-machine interface displays the test process in real time, truly realizing real-time control of the test process and continuous testing. Figure 3 This is the left view when the screen and button cover are opened.

[0040] Reference Figure 2 、 Figure 5 、 Figure 6 The four spherical rotating components all include an adjustable spherical joint 11 and an adjustable spherical base 12. The spherical surface of each adjustable spherical joint 11 is adapted to the interior of the corresponding adjustable spherical base 12. Each adjustable spherical joint 11 is rotatably connected to the interior of the corresponding adjustable spherical base 12. The rotation angle of each adjustable spherical joint 11 in the corresponding adjustable spherical base 12 is ≤60°. A channel is provided inside each adjustable spherical base 12. The ends of the output ends of the two auxiliary clamping cylinders 8 are both located inside the corresponding channels. The adjustable spherical joint 11 can rotate within a range of 60 degrees inside the adjustable spherical base 12. The adjustable spherical joint 11 is fixed between the auxiliary clamping cylinder 8 and the pipe system clamping seat 9, so that the front end of the pipe system clamping seat 9 can float within a range of 60 degrees with the adjustable spherical joint 11.

[0041] Reference Figure 2 、 Figure 6 The four piping components all include a piping compression seat 9, a piping pressing fixture 10 and two piping support plates 14. The four piping pressing fixtures 10 are respectively fixedly connected to the two piping support plates 14 and one end of the two main compression seats 3. The ends of the output shafts of the two main compression cylinders 4 are fixedly connected to one end of the corresponding piping compression seat 9. When the brake pipe is connected to the test bench, the main compression cylinder 4 and the auxiliary compression cylinder 8 provide test pressure.

[0042] Reference Figure 2 、 Figure 6The baffle 7 includes a main board 71, one side of the main board 71 is fixedly connected to two cylinder fixing plates 72, and the other side of the main board 71 is fixedly connected to two lifting support plates 73. The two cylinder fixing plates 72, the two lifting support plates 73 and the two pipe support plates 14 are all arranged linearly. One end of the two lifting support plates 73 is provided with a threaded hole, and the inside of the two threaded holes is threadedly connected with a screw 13. One end of the screw 13 is overlapped with the bottom of the corresponding two pipe support plates 14, and the four adjustable spherical bases 12 are respectively located above the corresponding lifting support plates 73. The screw 13 moves up and down inside the threaded hole by rotation. As the distance between the screw 13 and the ground changes, the pipe support plate 14 with one end of the pipe top pressure fixture 10 rotates with the adjustable spherical joint 11 as the center of the circle. The screw 13 can support the pipe support plate 14 and adjust the rotation angle of the pipe support plate 14 at the same time.

[0043] Reference Figure 2 、 Figure 6 The four adjustable spherical center bases 12 are grouped in pairs, one of which is a group of adjustable spherical center bases 12 fixedly connected to one side of the corresponding main board 71, and another group of adjustable spherical center bases 12 is sleeved on one side of the auxiliary control cabinet 2. The rotation angle of the other group of adjustable spherical center bases 12 inside the auxiliary control cabinet 2 is ≤60°, and the adjustable spherical center base 12 can rotate within a range of 60 degrees. The adjustable spherical center seat is fixed to the main board 71, and the pipe system top pressure fixture 10 is fixed on the adjustment ball center. In this way, the front end of the pipe system top pressure fixture 10 can float within a range of 60 degrees with the cylinder fixing plate 72 and the adjustable spherical center seat. The other ends of the other two pipe system pressing seats 9 and the two pipe system support plates 14 are fixedly connected to the inside of the corresponding adjustable spherical center joint 11. The two pipe system pressing seats 9 and the two pipe system support plates 14 can all use the corresponding adjustable spherical center joint 11 as the center of the circle to perform circular rotation in any direction. The maximum circumferential rotation angle in the same direction is 60°.

[0044] Reference Figure 2 、 Figure 6 The outer surfaces of the two auxiliary pressing cylinders 8 are fixedly connected to the top of the corresponding cylinder fixing plate 72, and the end of the output shaft of the lifting cylinder 6 is fixedly connected to the bottom of the corresponding cylinder fixing plate 72. The lifting cylinder 6 supports the cylinder fixing plate 72 located below, and at the same time drives the cylinder fixing plate 72 to rotate through the lifting cylinder 6, thereby causing the pipe support plate 14 and the pipe pressing seat 9 to rotate. The rotation angle driven by the lifting cylinder 6 is ≤60°.

[0045] Reference Figure 2The parking mechanism 5 includes four universal wheels 51 and a top support column 52. The top support column 52 adopts a manual valve support foot. The four universal wheels 51 are fixedly connected to the bottom of the auxiliary control cabinet 2. The top support column 52 is overlapped with the bottom of the lifting cylinder 6. When the auxiliary control cabinet 2 needs to stop and does not need to be moved, the top support column 52 is opened until the top support column 52 is supported on the ground and the bottom of the auxiliary control cabinet 2;

[0046] Reference Figure 3 、 Figure 5 , two exhaust fans are connected to the top of the auxiliary control cabinet 2 on one side of the main control cabinet 1 to facilitate heat dissipation.

[0047] Reference Figure 2 、 Figure 3 、 Figure 4 、 Figure 7 The manual rotary valve 15 is fixedly connected to the outer surface of the auxiliary control cabinet 2. The manual rotary valve 15 is transmission-connected to one of the auxiliary pressure cylinders 8. After the manual rotary valve 15 on the auxiliary control cabinet 2 is rotated, the corresponding auxiliary pressure cylinder 8 can be controlled to manually control the end face pressure of the brake pipe. Two manual rotary valves 15 can also be connected to the main control cabinet 1 to control the main pressure cylinder 4 on the corresponding main control cabinet 1 to manually control the pressure.

[0048] The implementation principle of the micro-controlled brake tube air pressure test bench of the present utility model is as follows:

[0049] The first step: first select the baffle 7, the spherical rotating assembly and the pipe system assembly that match the pre-tested brake pipe flange and install them on the test bench of the main control cabinet 1 and the auxiliary control cabinet 2. The adjustable spherical joint 11 can rotate within a range of 60 degrees. Fix the adjustable spherical joint 11 between the top pressure cylinder and the pipe system pressing seat 9. In this way, the front end pipe system pressing seat 9 can float within a range of 60 degrees with the adjustable spherical joint 11. The adjustable spherical base 12 can rotate within a range of 60 degrees. Fix the adjustable spherical base 12 on the pipe system support plate 14. The pipe system top pressure fixture 10 is fixed on the adjustment ball center. In this way, the front end pipe system top pressure fixture 10 can float within a range of 60 degrees with the adjustable spherical seat.

[0050] Step 2: Push the universal wheel 51 to move the auxiliary control cabinet 2 to the appropriate position (the position is determined by the shape and length of the brake pipe, and then lower the top support column 52, that is, pull the manual valve support foot to fix the mobile box) or clamp one end of the brake pipe with a handheld clamp.

[0051] Step 3: Load the material and fix the two ends of the brake pipe on the pipe pressing fixture 10 and the pipe pressing seat 9 of the main control cabinet 1 and the auxiliary control cabinet 2 respectively (two people are required to complete it together. The test bench can load two brake pipes at a time, or test them separately)

[0052] Step 4: Pull the clamping buttons on the main control cabinet 1 and the auxiliary control cabinet 2 to clamp both ends of the brake pipe (first clamp the fixed test bench and then clamp the end of the mobile auxiliary control cabinet 2);

[0053] Rotate the pipe system pressing seat 9, and the adjustable spherical joint 11 rotates inside the adjustable spherical base 12. The front end of the pipe system pressing seat 9 can float with the adjustable spherical joint 11 within a range of 60 degrees.

[0054] After the adjustable spherical joint 11 of the pipe pressing seat 9 is adjusted, the screw 13 is turned so that the lifting and lowering of the screw 13 drives the rotation of the pipe support plate 14 until the pipe support plate 14 reaches the specified position. The pipe pressing seat 9 and the pipe pressing fixture 10 can both rotate up and down and left and right within a range of 60 degrees, and the end faces of brake pipe flanges of different shapes can be pressed and tightened before performing an airtight test.

[0055] Step 5: Enter the brake pipe ① and brake pipe ② numbers on the touch screen of the PLC controller 16. Set the air filling, stabilization, and pressure holding times, and select whether to print the results of the brake pipe ① and ② tests.

[0056] Step 6: Press the start button on the box or the automatic start button on the touch screen to start the automatic test. The automatic test includes air filling, stabilization, pressure maintenance and automatic judgment of leakage. If the leakage volume meets the set standard, the screen will display qualified. If the leakage volume is higher than the set standard, the screen will display the leakage volume and prompt that further leakage detection is required (the corresponding alarm light will be on). The unqualified window on the touch screen will continue to flash until the stop button on the screen is clicked. There are manual buttons on the touch screen and the box to control the air filling and exhaust of the test bench.

[0057] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A micro-controlled brake tube air pressure test bench, characterized by: The invention comprises a main control cabinet (1), an auxiliary control cabinet (2) and four pipe system components, wherein the four pipe system components are grouped in pairs, and each group of the pipe system components is connected to the main control cabinet (1) and the auxiliary control cabinet (2) respectively. The outer surface of the main control cabinet (1) is fixedly connected with a PLC controller (16) with a display, a pressure gauge, two main clamping seats (3) and two main clamping cylinders (4). The two main clamping seats (3) are fixedly connected to one side of the main control cabinet (1), and the two main clamping cylinders (4) are fixedly connected to the main control cabinet (1). Inside the cabinet (1), the auxiliary control cabinet (2) includes a parking mechanism (5), a lifting cylinder (6), a baffle (7), two auxiliary pressing cylinders (8), four spherical rotating components and a manual rotary valve (15), the two auxiliary pressing cylinders (8) and the four spherical rotating components are fixedly connected to the baffle (7), the baffle (7) is located inside the auxiliary control cabinet (2), and the pressure gauge, the two main pressing cylinders (4), the lifting cylinder (6) and the two auxiliary pressing cylinders (8) are all communicatively connected to the PLC controller (16).

2. The micro-controlled brake tube air pressure test bench according to claim 1, characterized in that: The four spherical rotating components each include an adjustable spherical joint (11) and an adjustable spherical base (12), the spherical surface of each adjustable spherical joint (11) is adapted to the interior of the corresponding adjustable spherical base (12), each adjustable spherical joint (11) is rotatably connected to the interior of the corresponding adjustable spherical base (12), the rotation angle of each adjustable spherical joint (11) inside the corresponding adjustable spherical base (12) is ≤60°, a channel is provided inside each adjustable spherical base (12), and the ends of the output ends of the two auxiliary clamping cylinders (8) are located inside the corresponding channel.

3. The micro-controlled brake tube air pressure test bench according to claim 2, characterized in that: The four piping system assemblies each include a piping system pressing seat (9), a piping system pressing fixture (10) and two piping system support plates (14). The four piping system pressing fixtures (10) are respectively fixedly connected to the two piping system support plates (14) and one end of the two main pressing seats (3). The ends of the output shafts of the two main pressing cylinders (4) are each fixedly connected to one end of the corresponding piping system pressing seat (9).

4. The micro-controlled brake tube air pressure test bench according to claim 3, characterized in that: The baffle (7) includes a main board (71), one side of the main board (71) is fixedly connected to two cylinder fixing plates (72), and the other side of the main board (71) is fixedly connected to two lifting support plates (73), the two cylinder fixing plates (72), the two lifting support plates (73) and the two pipe support plates (14) are all arranged linearly, one end of the two lifting support plates (73) is provided with a threaded hole, the interior of the two threaded holes is threadedly connected to a screw rod (13), one end of the screw rod (13) is overlapped with the bottom of the corresponding two pipe support plates (14), and the four adjustable spherical center bases (12) are respectively located above the corresponding lifting support plates (73).

5. The micro-controlled brake tube air pressure test bench according to claim 4, characterized in that: The four adjustable spherical bases (12) are arranged in pairs, wherein one group of the adjustable spherical bases (12) is fixedly connected to one side of the corresponding main board (71), another group of the adjustable spherical bases (12) is sleeved on one side of the auxiliary control cabinet (2), and the rotation angle of the other group of the adjustable spherical bases (12) inside the auxiliary control cabinet (2) is ≤60°, and the other ends of the other two pipe system pressing seats (9) and the two pipe system support plates (14) are fixedly connected to the inside of the corresponding adjustable spherical joints (11).

6. The micro-controlled brake tube air pressure test bench according to claim 5, characterized in that: The outer surfaces of the two auxiliary clamping cylinders (8) are fixedly connected to the top of the corresponding cylinder fixing plate (72), and the end of the output shaft of the lifting cylinder (6) is fixedly connected to the bottom of the corresponding cylinder fixing plate (72).

7. The micro-controlled brake tube air pressure test bench according to claim 6, characterized in that: The parking mechanism (5) includes four universal wheels (51) and a top support column (52). The four universal wheels (51) are fixedly connected to the bottom of the auxiliary control cabinet (2), and the top support column (52) is overlapped with the bottom of the lifting cylinder (6).

8. The micro-controlled brake tube air pressure test bench according to claim 7, characterized in that: The manual rotary valve (15) is fixedly connected to the outer surface of the auxiliary control cabinet (2), and the manual rotary valve (15) is transmission-connected to one of the auxiliary clamping cylinders (8).

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