Air spring air path control device

Abstract

The utility model discloses an air spring air path control device, which relates to the technical field of air path control and comprises an air path plate, a balance valve is arranged at one end of the top end of the air path plate, a pressure sensor is arranged at one end of the balance valve, a test connector is arranged at the other end of the balance valve, and a differential pressure valve is arranged on one side of the balance valve. The gas circuit board is reasonable and reliable in structure, the balance valve, the pressure sensor and the test connector are installed on the gas circuit board, so that the use space can be reduced, and the problems that in the prior art, when independent spare parts are installed on a vehicle, the needed space is large, and installation is inconvenient are solved; therefore, the passages in the gas circuit board can be used for replacing pipelines and connectors, installation of a pipe clamp support is omitted, the air spring gas circuit control device has the advantages of being small in installation space, light in equipment weight and easy to install, and the air spring gas circuit control device is installed on a vehicle, so that energy consumption of the vehicle can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air circuit control, and more specifically, to an air spring air circuit control device. Background Art

[0002] The rail vehicle calculates the braking force required for vehicle braking through the load signal provided by the air spring to ensure a constant vehicle braking deceleration. This function is called the "load compensation function". The air spring load signal needs to be detected by a pressure sensor and sent to the braking system. A differential pressure valve also needs to be set to ensure that the pressure between the two air springs does not exceed the limit; a balance valve is set to average the pressures of the two air springs to make the load signal more accurate; a test joint is set to manually detect the pressure for debugging.

[0003] Currently, in the prior art, some vehicles such as tramcars and monorails do not have air springs installed, or have air springs installed, but the air spring control air circuit is installed with discrete parts. The pressure sensor, differential pressure valve, balance valve, and test joint are installed separately and need to be connected by pipelines. This requires a large amount of space and is inconvenient for installation. Moreover, the differential pressure valve and balance valve need to be installed on brackets, the air circuit needs to be connected by pipelines, and the pipelines need to be fixed, occupying a large amount of space, which will lead to insufficient space utilization, resulting in a crowded vehicle underframe. In addition, the pipelines, joints, and pipe clamps all need to be maintained, increasing the workload, and the total weight of the discrete installation is much greater than that of the integrated module. The increase in weight will lead to an increase in vehicle energy consumption.

[0004] For the problems in the related art, no effective solution has been proposed yet. Summary of the Utility Model

[0005] In view of the problems in the related art, the present utility model provides an air spring air circuit control device to overcome the above technical problems existing in the prior related art.

[0006] To this end, the specific technical solution adopted by the present utility model is as follows:

[0007] An air spring air circuit control device includes an air circuit board. One end of the top of the air circuit board is provided with a balance valve. One end of the balance valve is provided with a pressure sensor, and the other end of the balance valve is provided with a test joint. A differential pressure valve is provided on one side of the balance valve.

[0008] Furthermore, in order to utilize the passages inside the air circuit board to replace the pipelines and connectors, save the installation of pipe clamps and brackets, and enable the air spring air circuit control device to have the characteristics of small installation space, light equipment weight, and simple installation, several threaded holes are opened at the bottom end of the air circuit board, and the several threaded holes are arranged in a square pattern. The size of the air circuit board is 180mm×155mm×92mm; on one end side wall of the air circuit board, air circuit connection ports are symmetrically opened, and a connection passage one is opened on the inner wall of the air circuit connection port; at one end inner wall of the connection passage one close to the air circuit connection port, a differential pressure valve air circuit interface connected to the differential pressure valve is opened, and at one end inner wall of the connection passage one far from the air circuit connection port, a balance valve air circuit interface connected to the balance valve is opened; at one end inside the air circuit board and at the bottom end of the test joint, a test joint air circuit interface connected to the test joint is opened, and at the other end inside the air circuit board and at the bottom end of the pressure sensor, a sensor air circuit interface connected to the pressure sensor is opened; on one side of the air circuit board, a communication pipeline two connected to the test joint air circuit interface and the sensor air circuit interface is opened; the inner wall of the air circuit connection port uses NPT1 / 2 thread, and one of the air circuit connection ports is set as the air inlet, and the other air circuit connection port is set as the air outlet.

[0009] The beneficial effects of the present utility model are as follows:

[0010] 1. The structure of the present utility model is reasonable and reliable. By installing the balance valve, pressure sensor and test joint on the air circuit board, the use space can be reduced, and the problem that when installed on a vehicle by separate parts in the prior art, a large space is required and the installation is inconvenient can be solved.

[0011] 2. By setting the air circuit board, the passages inside the air circuit board can be used to replace the pipelines and connectors, save the installation of pipe clamps and brackets, and further enable the air spring air circuit control device to have the characteristics of small installation space, light equipment weight, and simple installation. Moreover, when the scheme is installed on a vehicle, the energy consumption of the vehicle can be reduced. Description of the Drawings

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0013] Figure 1 is a structural schematic diagram of an air spring air circuit control device according to an embodiment of the present utility model;

[0014] Figure 2 is a structural schematic diagram of an air spring air circuit control device from another angle according to an embodiment of the present utility model;

[0015] Figure 3 is a cross-sectional view of an air spring air circuit control device according to an embodiment of the present invention;

[0016] Figure 4 is a cross-sectional view of another state of an air spring air circuit control device according to an embodiment of the present invention;

[0017] Figure 5 is a schematic diagram of an air spring air circuit control device according to an embodiment of the present invention.

[0018] In the figure:

[0019] 1. Air circuit board; 101. Threaded hole; 102. Air circuit connection port; 103. First connection passage; 104. Differential pressure valve air circuit interface; 105. Balance valve air circuit interface; 106. Test joint air circuit interface; 107. Sensor air circuit interface; 108. Second communication pipeline; 2. Balance valve; 3. Pressure sensor; 4. Test joint; 5. Differential pressure valve. Detailed implementation manners

[0020] To further illustrate the embodiments, the present invention provides drawings, which are part of the disclosure of the present invention. They are mainly used to illustrate the embodiments and can be used to explain the operating principle of the embodiments in conjunction with the relevant descriptions in the specification. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0021] According to an embodiment of the present invention, an air spring air circuit control device is provided.

[0022] Now, the present invention will be further described in conjunction with the drawings and specific implementation manners. As Figures 1 - 4 shown, the air spring air circuit control device according to an embodiment of the present invention includes an air circuit board 1. One end of the top of the air circuit board 1 is provided with a balance valve 2. One end of the balance valve 2 is provided with a pressure sensor 3. The other end of the balance valve 2 is provided with a test joint 4. One side of the balance valve 2 is provided with a differential pressure valve 5.

[0023] In addition, it should be noted that the air circuit board 1 is an aluminum alloy metal plate, and the differential pressure valve 5, the test joint 4 and the pressure sensor 3 are all installed on the aluminum alloy metal plate in a plate type.

[0024] By virtue of the above technical solution of the present invention, the structure of the present invention is reasonable and reliable. By installing the balance valve 2, the pressure sensor 3 and the test joint 4 on the air circuit board 1, the use space can be reduced, and the problem that a large space is required and the installation is inconvenient when the existing technology is installed on a vehicle by separate parts can be solved.

[0025] In one embodiment, for the above-mentioned air circuit board 1, a number of threaded holes 101 are provided at the bottom end of the air circuit board 1. In addition, in specific applications, the above-mentioned threaded holes 101 are installed with four M6 threaded holes, and the several threaded holes 101 are arranged in a square pattern. The size of the air circuit board 1 is 180mm × 155mm × 92 mm; on one end side wall of the air circuit board 1, air circuit connection ports 102 are symmetrically provided, and a connection passage 103 is provided on the inner wall of the air circuit connection port 102; on the inner wall of one end of the connection passage 103 close to the air circuit connection port 102, a differential pressure valve air circuit interface 104 connected to the differential pressure valve 5 is provided, and on the inner wall of the end of the connection passage 103 far from the air circuit connection port 102, a balance valve air circuit interface 105 connected to the balance valve 2 is provided; at one end inside the air circuit board 1 and at the bottom end of the test joint 4, a test joint air circuit interface 106 connected to the test joint 4 is provided, and at the other end inside the air circuit board 1 and at the bottom end of the pressure sensor 3, a sensor air circuit interface 107 connected to the pressure sensor 3 is provided; on one side of the air circuit board 1, a communication pipeline 108 connected to the test joint air circuit interface 106 and the sensor air circuit interface 107 is provided; the inner wall of the air circuit connection port 102 uses NPT1 / 2 threads, and one of the air circuit connection ports 102 is set as the air inlet, and the other air circuit connection port 102 is set as the air outlet. Thus, the passage inside the air circuit board 1 can be used to replace the pipeline and the joint, saving the installation of pipe clamps and brackets. Furthermore, the air spring air circuit control device can have the characteristics of a small installation space, light equipment weight, and simple installation. And when the solution is installed on a vehicle, it can reduce the energy consumption of the vehicle.

[0026] In addition, it should be noted that, as Figure 5 shown, it is the schematic diagram of the air spring air circuit control, which is mainly used for the detection of the air spring signal in the main braking system. Among them, a, b, and c respectively represent the pressures of three air circuits. After a and b enter, c is output, and c = (a + b) / 2. The air spring pressures of each bogie enter the air spring air circuit control device from A and B respectively. The two air spring pressure values are connected through a differential pressure valve (.01) to prevent the two air spring pressure values from differing too much, which can prevent the vehicle from having too large a height difference on both sides due to the rupture of one side air spring. The differential pressure valve can ensure that the pressure difference between the two side air springs is within a certain range. The two air spring pressure values of A and B enter the balance valve (.02) at the same time. The balance valve averages the two air spring pressure values and outputs them through port C. The averaged air spring pressure value is used for vehicle load calculation after being detected by the pressure sensor through the test interface. Combining the characteristic of the air spring that the air spring pressure value is proportional to the load and the fact that the greater the air spring pressure value, the greater the vehicle load. According to the air spring characteristic curve provided by the air spring supplier, the vehicle weight corresponding to the pressure value can be determined, where. The test joint is (.03), and the pressure sensor is (.04).

[0027] To facilitate the understanding of the above technical solutions of the present utility model, the working principle or operation mode of the present utility model in the actual process will be described in detail below.

[0028] In actual application, medium and small-capacity transportation means such as monorail vehicles, trams, multiple tracks, and intelligent tracks generally adopt hydraulic braking. To improve the braking force accuracy of the hydraulic braking system and the comfort during vehicle operation, air springs need to be added. The air springs require air spring air circuit control equipment, and a differential pressure valve is set between the air springs of each bogie. And to ensure the effective balance of the pressures of the two air springs at each end of the vehicle, the average value of the pressure values of the two air springs is output, and a pressure sensor is set to detect the average value and upload it to the braking system for calculating the load, so as to output the braking force more accurately. Therefore, the air spring air control equipment of the small-capacity hydraulic braking system, which contains a differential pressure valve, a test joint, a balance, and a pressure sensor device integrated, can adopt the air spring air circuit control device of the present utility model.

[0029] In summary, by virtue of the above technical solutions of the present utility model, the structure of the present utility model is reasonable and reliable. By installing the balance valve 2, the pressure sensor 3, and the test joint 4 on the air circuit board 1, the usage space can be reduced, and the problem that a large space is required and the installation is inconvenient when installed on the vehicle as separate parts in the prior art can be solved. By setting the air circuit board 1, the internal passage of the air circuit board 1 can be used to replace the pipeline and the joint, saving the installation of pipe clamps and brackets. Furthermore, the air spring air circuit control device can have the characteristics of small installation space, light equipment weight, and simple installation. And the solution installed on the vehicle can reduce the energy consumption of the vehicle.

[0030] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "setting", "connection", "fixation", "swivel connection", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. It can be the internal communication of two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0031] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An air spring air circuit control device, characterized in that: The invention comprises a gas circuit board (1), wherein a balancing valve (2) is arranged at one end of the top of the gas circuit board (1), a pressure sensor (3) is arranged at one end of the balancing valve (2), a test connector (4) is arranged at the other end of the balancing valve (2), and a differential pressure valve (5) is arranged at one side of the balancing valve (2).

2. The air spring gas circuit control device according to claim 1, characterized in that: A plurality of threaded holes (101) are provided at the bottom end of the gas circuit plate (1), and the plurality of threaded holes (101) are arranged in a square shape.

3. The air spring gas circuit control device according to claim 2, characterized in that: A gas path connecting opening (102) is symmetrically provided on a side wall at one end of the gas path plate (1), and a connecting passage 1 (103) is provided on an inner wall of the gas path connecting opening (102); A differential pressure valve gas path interface (104) connected to the differential pressure valve (5) is provided on the inner wall of one end of the connecting passageway 1 (103) close to the gas path connection port (102), and a balancing valve gas path interface (105) connected to the balancing valve (2) is provided on the inner wall of one end of the connecting passageway 1 (103) away from the gas path connection port (102).

4. The air spring air circuit control device according to claim 2, characterized in that: A test connector gas circuit interface (106) connected to the test connector (4) is provided at one end of the gas circuit plate (1) and located at the bottom of the test connector (4), and a sensor gas circuit interface (107) connected to the pressure sensor (3) is provided at the other end of the gas circuit plate (1) and located at the bottom of the pressure sensor (3).

5. The air spring air circuit control device according to claim 4, characterized in that: A second connecting pipeline (108) connected to the test joint gas circuit interface (106) and the sensor gas circuit interface (107) is provided on one side of the gas circuit plate (1).

6. The air spring gas circuit control device according to claim 3, characterized in that: The inner wall of the gas circuit connection port (102) adopts an NPT1 / 2 thread, and one of the gas circuit connection ports (102) is configured as an air inlet, and the other gas circuit connection port (102) is configured as an air outlet.

7. The air spring air circuit control device according to claim 3, characterized in that: The dimensions of the gas circuit plate (1) are 180 mm×155 mm×92 mm.

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