Locomotive screw air compressor valve experiment table

Abstract

The utility model discloses a locomotive screw rod type air compressor valve spare experiment table relates to locomotive equipment overhauling technical field. Including test table, dismounting assembly, set up in the test table inside, be used for the dismounting replacement of base, resist pressure assembly, set up at base one side, be used for the auxiliary fixation of base. The utility model discloses a T -shaped board is set up, and the vertical groove is set up on T -shaped board, and the support cross bar is set up at its bottom, can make base along vertical groove and shift, thereby install on T -shaped board, and the experimenter rotates knob, can utilize fixed axle and drive bidirectional screw and rotate, and bidirectional screw can drive the relative translation of limit board in the process of rotating, thereby the base is positioned, and under the action of torsion spring, before installation, twist extrusion board, make it give the installation area of base, then remove the force that extrusion board is applied, and torsion spring will drive extrusion board and restore to the original position, thereby can extrude base, make it and four way distributor between closely connected.

Description

Technical Field

[0001] This utility model relates to the field of locomotive equipment maintenance technology, specifically to a test bench for valve components of a locomotive screw air compressor. Background Technology

[0002] Under current maintenance conditions, pressure switches, intake valves, safety valves, and minimum pressure maintaining valves cannot be individually tested on the valve body during intermediate and C4 maintenance processes. They can only be tested as a whole along with the screw air compressor, and then tested on-board to determine that the overall condition of the screw air compressor is good.

[0003] While this method can confirm the good condition of the screw air compressor, it has a significant drawback: it cannot determine the specific test data and condition of individual components, posing a clear safety hazard. If any component on the screw air compressor, such as the pressure switch, intake valve, safety valve, or minimum pressure maintaining valve, malfunctions, it will exacerbate the compressor's failure. When a failure occurs, one component needs to be disassembled and replaced. Furthermore, different valves have different mounting bases, requiring the selection of a compatible mounting base. Therefore, a test bench for locomotive screw air compressor valves is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a test bench for valve components of a locomotive screw air compressor, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a test bench for valve components of a locomotive screw air compressor, comprising: a test bench,

[0006] The disassembly assembly, located inside the test bench, is used for disassembling and replacing the base;

[0007] A pressure-retaining component, located on one side of the base, is used to assist in fixing the base.

[0008] The disassembly assembly includes a T-shaped plate located on one side of the four-way splitter inside the test bench, with sequential arrangement on its surface. A support crossbar is provided at the bottom of the T-shaped plate, and vertical grooves are provided on both sides of the T-shaped plate, extending through the T-shaped plate to the inner side of the top of the support crossbar. The vertical grooves are used to limit and guide the base.

[0009] As a specific solution in this application, the four-way splitter is provided with several fixing plates on one side, a fixing shaft is provided on the inner side of the fixing plate, a bidirectional screw is provided between the fixing shafts, and a limit plate is provided on the outer wall of the bidirectional screw.

[0010] As a specific solution in this application, a block is provided on one side of the limiting plate. The block is located in the horizontal groove on the four-way splitter and is close to the fixed shafts at both ends of the four-way splitter. A knob is provided on the outer wall of one end of the block.

[0011] As a specific solution in this application, the pressing component includes a fixing rod located on the inner walls of both sides of the T-shaped plate, an extrusion plate provided on the outer wall of the fixing rod, and a torsion spring provided on the inner side of one end of the extrusion plate.

[0012] As a specific solution in this application, the test bench is equipped with a pressure regulating valve, which is connected to a pipeline, and a four-way splitter is installed at the other end of the pipeline.

[0013] As a specific solution in this application, a base is provided between the T-shaped plates, and the base is connected to the intake valve test module, the safety valve test module, the pressure switch test module, and the minimum pressure maintaining valve test module respectively.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This locomotive screw-type air compressor valve test bench features a T-shaped plate with vertical slots and a supporting crossbar at its bottom. This allows the base to slide along the slots and be installed on the T-shaped plate. By turning a knob, the operator rotates a fixed shaft to drive a bidirectional screw. During rotation, the screw causes a limiting plate to slide relative to the base, thus limiting its position. Furthermore, under the action of a torsion spring, before installation, the compression plate is twisted to clear the mounting area of ​​the base. After the force is removed, the torsion spring returns the compression plate to its original position, thus compressing the base and ensuring a tight connection with the four-way splitter. This improves the stability and sealing of the base installation. The combined action of the compression plate and the limiting plate facilitates the disassembly and replacement of the base, adapting it to different valve mounting bases. This allows for testing of individual valves, improving the test bench's versatility and ease of use. It also solves the problem of not being able to test individual valves independently, effectively reducing safety hazards during locomotive operation and ensuring safe operation. Attached Figure Description

[0016] Figure 1 This is an isometric view of the present invention;

[0017] Figure 2 This is a partial equiaxed side view of the present invention;

[0018] Figure 3 This is a schematic diagram of the equiaxed side interior of the present invention;

[0019] Figure 4 This is a schematic diagram of the disassembly components of this utility model;

[0020] Figure 5 This is a cross-sectional schematic diagram of the disassembly components of this utility model;

[0021] Figure 6 For the present utility model Figure 5 Enlarged diagram of point A in the middle.

[0022] In the diagram: 1. Test bench; 101. Piping; 102. Pressure regulating valve; 103. Four-way distributor; 104. Inlet valve test module; 105. Safety valve test module; 106. Pressure switch test module; 107. Minimum pressure maintaining valve test module; 108. Base; 2. Disassembly assembly; 201. Support crossbar; 202. T-shaped plate; 203. Limiting plate; 204. Fixing plate; 205. Bidirectional screw; 206. Knob; 207. Horizontal groove; 208. Fixing shaft; 209. Vertical groove; 210. Block; 3. Pressing assembly; 301. Extrusion plate; 302. Fixing rod; 303. Torsion spring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] like Figures 1-6As shown, this utility model provides a technical solution: a test bench for valve components of a locomotive screw air compressor, including a test bench 1. The test bench 1 is used to provide a testing environment for various modules. The front, left and right sides of the test bench 1 are equipped with openable cabinet doors, which facilitate the disassembly and replacement of the modules inside the test bench 1 by the test personnel. It should be noted that the test bench 1 in this application refers to the valve component test bench. The disassembly component 2 is set inside the test bench 1 and is used to disassemble and replace the base 108. The pressing component 3 is set on one side of the base 108 and is used to assist in fixing the base 108.

[0027] The disassembly assembly 2 includes a T-shaped plate 202, which is located on one side of the four-way splitter 103 inside the test bench 1, and arranged sequentially on its surface. A support crossbar 201 is provided at the bottom of the T-shaped plate 202, and vertical grooves 209 are provided on both sides of the T-shaped plate 202, extending through the T-shaped plate 202 to the inner side of the top of the support crossbar 201. The vertical grooves 209 are used to limit and guide the base 108. Several fixing plates 204 are provided on one side of the four-way splitter 103, and fixing shafts 208 are provided inside the fixing plates 204. Bidirectional screws 205 are provided between the fixing shafts 208, and a limit plate 203 is provided on the outer wall of the bidirectional screws 205. A block 210 is provided on one side of the limit plate 203, and the block 210 is located in the horizontal groove 20 on the four-way splitter 103. Within 7, and near the fixed shaft 208 at both ends of the four-way splitter 103, a knob 206 is provided on the outer wall of one end. Specifically, when the experimenter installs the base 108, first, the pressing plate 301 is moved to make room for the installation of the base 108. Then, the base 108 is aligned with the vertical groove 209 on the T-shaped plate 202, and the base 108 is moved down until the bottom of the base 108 contacts the groove on the support crossbar 201. The groove is formed by the vertical groove 209 of the T-shaped plate 202 extending to the surface of the support crossbar 201. The groove is adapted to the base 108, and the support crossbar 201 is used to support the base 108 and the valves on the base 108. After the base 108 is installed, the pressing plate 301 is released. 301 will compress the base 108 and simultaneously rotate the knob 206. When the knob 206 rotates, it will synchronously drive the fixed shaft 208 to rotate. Since the fixed shaft 208 is fixedly connected to the bidirectional screw 205, and the fixed shaft 208 is rotatably connected to the fixed plate 204, the rotation of the fixed shaft 208 drives the bidirectional screw 205 to rotate. The bidirectional screw 205 is threadedly connected to the limiting plate 203. Therefore, during the rotation of the bidirectional screw 205, the limiting plate 203 moves from both ends of the bidirectional screw 205 towards the middle. During the movement of the limiting plate 203, the block 210 is driven to translate within the transverse groove 207. The limiting plate 203 is fixedly connected to the block 210, and the transverse groove 207 is used for... The block 210 is positioned and guided, thereby limiting the position of the limiting plate 203. During its movement, the limiting plate 203 gradually moves to the upper middle part of the base 108, thus limiting the base 108 and fixing it within the vertical groove 209 of the T-shaped plate 202. It should be noted that initially, before the base 108 is installed, the pressing end of the pressing plate 301 is in contact with the surface of the four-way splitter 103, while the limiting plate 203 is located at both ends of the bidirectional screw 205. At this time, the distance between the limiting plates 203 is equal to the distance between the vertical grooves 209 on the two T-shaped plates 202. In other words, the position of the limiting plate 203 at this time will not affect the base 108 sliding in and out along the vertical grooves 209 on the T-shaped plate 202.The T-shaped plate 202 is divided into two parts: a vertical plate and a horizontal plate. The two parts combined form the T-shaped plate 202. In this application, the horizontal plate of the T-shaped plate 202 is lower than its vertical plate. This design is to provide a suitable environment for the limiting plate 203. The limiting plate 203 is L-shaped, and the T-shaped plates 202 at both ends have vertical grooves 209 only on the side facing the middle of the four-way splitter 103, while the T-shaped plate 202 in the middle has vertical grooves 209 on both sides. The thread lead at both ends of the bidirectional screw 205 is the same to ensure symmetrical movement of the limiting plate 203, and consistent machining accuracy of the left and right threads, ensuring they move towards the center at the same rate.

[0028] like Figure 1-6 As shown in the embodiment of this application, the pressing component 3 includes a fixing rod 302, which is located on the inner walls of both sides of the T-shaped plate 202. A pressing plate 301 is provided on the outer wall of the fixing rod 302, and a torsion spring 303 is provided on the inner side of one end of the pressing plate 301. Specifically, under the action of the torsion spring 303, a pushing force can be applied to the base 108, thereby making the base 108 in close contact with the surface of the four-way splitter 103. Before the base 108 is installed, the pressing plate 301 is in contact with the surface of the four-way splitter 103. The experimenter rotates the pressing plate 301 so that the pressing end of the pressing plate 301 is away from the surface of the four-way splitter 103. After the base 108 is installed, the pressing plate 301 rebounds under the action of the torsion spring 303, thereby pressing the base 108, which can compress the base 108. The base 108 is pressed against the surface of the four-way splitter 103, thereby making close contact between the base 108 and the four-way splitter 103 and maintaining a sealed connection. When the extrusion plate 301 is rotated, the extrusion plate 301 twists around the fixed rod 302, thereby driving the torsion spring 303 to twist around the fixed rod 302. The torsion spring 303 will generate elastic torsional deformation. After the external force is removed, the torsion spring 303 will release the stored elastic potential energy and generate a reverse torque, attempting to return to the initial position. However, since the base 108 is set between the extrusion plate 301 and the four-way splitter 103, the extrusion plate 301 will press the base 108, thereby pressing the base 108 against the surface of the four-way splitter 103, making it in close contact with it, and ensuring that the base 108 and the four-way splitter 103 can be sealed together.

[0029] like Figure 1-6As shown in the embodiment of this application, a pressure regulating valve 102 is provided on the test bench 1. The pressure regulating valve 102 is connected to a pipeline 101. A four-way splitter 103 is provided at the other end of the pipeline 101. A base 108 is provided between the T-shaped plates 202. The base 108 is connected to the air intake valve test module 104, the safety valve test module 105, the pressure switch test module 106, and the minimum pressure maintaining valve test module 107, respectively. Specifically, it is connected to the pressure regulating valve 102 through an external air supply line. The pressure regulating valve 102 is used to control the magnitude of the air supply pressure. Then, air is supplied to different test modules (inlet valve test module 104, safety valve test module 105, pressure switch test module 106, and minimum pressure maintaining valve test module 107) through pipeline 101. The test pressure value is displayed by a digital pressure gauge on the test bench 1 in conjunction with a pressure sensor. The indicator lights are connected through a low-voltage circuit to display the operation status of each valve and determine whether each valve operates well when it reaches the rated pressure. Since the digital pressure gauge, pressure sensor, and indicator lights are all existing technologies, they will not be described in detail here.

[0030] The working principle of this utility model is as follows:

[0031] During valve testing, the valve needs to be installed by connecting it to its compatible base 108. The operator twists the extrusion plate 301 to detach it from the surface of the four-way splitter 103. Then, the base 108 is aligned with the vertical groove 209 between the base 108 and the T-shaped plate 202. The base 108 is then moved downwards, entering the space between the T-shaped plates 202 and being limited by the vertical groove 209 until the bottom of the base 108 aligns with the bottom of the groove on the upper surface of the support crossbar 201. Upon contact, the force applied to the extrusion plate 301 is removed. Under the action of the torsion spring 303, the extrusion plate 301 will return to its initial position, thereby extruding the base 108 and ensuring a tight connection between it and the four-way splitter 103. After the base 108 is installed, the knob 206 is rotated. During the rotation of the knob 206, the fixed shaft 208 is rotated. At the same time, the rotation of the fixed shaft 208 drives the limiting plate 203 on the outer wall of the bidirectional screw 205 to move. As the limiting plate 203 moves, it will gradually... The test bench is moved to the top center of the base 108 for auxiliary fixation. When the test bench 1 is connected to the external air supply, the air is regulated by the pressure regulating valve 102 and then transported to the four-way splitter 103 via the pipeline 101. The four-way splitter 103 supplies air to each test module. According to the type of valve to be tested, the corresponding test module is selected, and the special valve mounting base 108 is installed between the corresponding T-shaped plates 202, ensuring that the installation is firm. At the start of the test, the external air supply equipment is turned on, and the air source is regulated by the pressure regulating valve 102 and then enters each test module. The pressure sensor collects the test pressure data in real time and transmits it to the digital pressure gauge for display. When the valve reaches the rated pressure and actuates, the indicator light of the actuation status indicator module lights up. Maintenance personnel can judge whether the valve is actuating well by observing the indicator light and the digital pressure gauge. After the test is completed, the external air supply equipment is turned off, and the tested valve is disassembled. If other valves need to be tested, the corresponding valve mounting base 108 is replaced, and the above steps are repeated for testing.

[0032] In summary, this utility model discloses a test bench for valve components of a locomotive screw-type air compressor, including a test bench 1, a disassembly assembly 2, which is installed inside the test bench 1 for disassembling and replacing the base 108, and a pressing assembly 3, which is installed on one side of the base 108 for auxiliary fixing of the base 108. This utility model, by setting a T-shaped plate 202 and opening a vertical groove 209 on the T-shaped plate 202, and setting a supporting crossbar 201 at its bottom end, allows the base 108 to be moved along the vertical groove 209 and thus installed on the T-shaped plate 202. When the experimenter rotates the knob 206, the fixed shaft 208 drives the bidirectional screw 205 to rotate. During the rotation of the bidirectional screw 205, the limiting plate 203 can be moved relatively, thereby limiting the base 108. Furthermore, under the action of the torsion spring 303, the pressing plate 301 is twisted before installation to make room for the installation area of ​​the base 108, and then the pressing plate 301 is removed. The applied force causes the torsion spring 303 to push the compression plate 301 back to its original position, thereby compressing the base 108 and making it tightly connected to the four-way splitter 103. This improves the stability and sealing of the base 108 installation. Under the combined action of the compression plate 301 and the limiting plate 203, the base 108 can be easily disassembled and replaced, and can be adapted to different valve installation bases. This allows for testing of individual valves, improves the versatility and ease of use of the test bench, and solves the problem of not being able to test individual valves independently. This effectively reduces safety hazards in locomotive operation and ensures the safety of locomotive operation.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. Locomotive screw air compressor valve test bench, including: The test bench is characterized by: The disassembly assembly, located inside the test bench, is used for disassembling and replacing the base; A pressure-retaining component, located on one side of the base, is used to assist in fixing the base. The disassembly assembly includes a T-shaped plate located on one side of the four-way splitter inside the test bench, with sequential arrangement on its surface. A support crossbar is provided at the bottom of the T-shaped plate, and vertical grooves are provided on both sides of the T-shaped plate, extending through the T-shaped plate to the inner side of the top of the support crossbar. The vertical grooves are used to limit and guide the base.

2. The test bench for locomotive screw-type air compressor valves according to claim 1, characterized in that: The four-way splitter has several fixing plates on one side, a fixing shaft on the inner side of the fixing plate, a bidirectional screw between the fixing shafts, and a limit plate on the outer wall of the bidirectional screw.

3. The locomotive screw air compressor valve test bench according to claim 2, characterized in that: A block is provided on one side of the limiting plate. The block is located in the horizontal groove of the four-way splitter and close to the fixed shafts at both ends of the four-way splitter. A knob is provided on the outer wall of one end of the block.

4. The locomotive screw air compressor valve test bench according to claim 1, characterized in that: The pressure-blocking assembly includes a fixing rod located on the inner walls of both sides of the T-shaped plate. A pressing plate is provided on the outer wall of the fixing rod, and a torsion spring is provided on the inner side of one end of the pressing plate.

5. The locomotive screw air compressor valve test bench according to claim 1, characterized in that: The test bench is equipped with a pressure regulating valve, which is connected to a pipeline, and a four-way splitter is installed at the other end of the pipeline.

6. The locomotive screw air compressor valve test bench according to claim 4, characterized in that: A base is provided between the T-shaped plates, and the base is connected to the intake valve test module, the safety valve test module, the pressure switch test module, and the minimum pressure maintaining valve test module respectively.

Images