Multi-station hydraulic valve test bench

Abstract

The utility model relates to hydraulic valve test board technical field, concretely is a kind of multi-station hydraulic valve test board, including processing station, the installation block is fixed in processing station middle part position, the processing station is provided with the multiple detection components of even distribution, the conical tube is fixedly connected in the end of the liquid injection pipe;The conical tube and conical head are opposite collinear arrangement, the rubber sealing sleeve is fixed on the conical surface of the conical tube and conical head, in the utility model, by the two ports of hydraulic valve continue to move in the conical tube and conical head plugging state, and in extrusion process rubber sealing sleeve will produce deformation, to further promote the connecting effect to hydraulic valve, utilize pressure sensor detection hydraulic valve internal pressure, and by setting multiple detection components to detect multiple hydraulic valves simultaneously, and need not connect redundant components on hydraulic valve before detection, operation is more convenient.

Description

Technical Field

[0001] This utility model relates to the technical field of hydraulic valve test benches, specifically a multi-station hydraulic valve test bench. Background Technology

[0002] A hydraulic valve test bench is a specialized device for testing, verifying, and evaluating the performance and reliability of hydraulic valves. It is widely used in the production, maintenance, research and development, and improvement of hydraulic valves. Its core function is to simulate the working environment of hydraulic valves under actual working conditions. By precisely controlling parameters such as oil pressure, flow rate, and temperature, it quantitatively tests various technical indicators of hydraulic valves to determine whether they meet design standards or usage requirements.

[0003] A Chinese patent with publication number CN209053868U discloses a hydraulic valve test bench. It utilizes connectors, with the inlet and outlet connectors fixed to the base of the hydraulic valve testing fixture via a linear drive mechanism. The first adapter connects to the inlet and outlet connectors of the hydraulic valve under test, respectively, while the second adapter connects to the outlet and inlet connectors. The adapters are first connected to the hydraulic valve under test, then placed on the test position. The linear drive mechanism automatically connects the inlet and outlet connectors to the hydraulic valve with the adapters connected, thereby reducing the time spent installing the hydraulic valve on the test bench and improving the testing efficiency.

[0004] In the aforementioned literature, existing hydraulic valve test benches can only test a single hydraulic valve at a time, which requires a lot of time when testing large batches, resulting in slow testing speed and low testing efficiency. Therefore, a multi-station hydraulic valve test bench is proposed to address the above problems. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, and addressing the problem that existing technologies can only test a single hydraulic valve at a time, resulting in slow testing speed and low testing efficiency, this utility model proposes a multi-station hydraulic valve testing bench.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a multi-station hydraulic valve test bench of this utility model includes a processing table, an installation block is fixed in the middle of the processing table, a plurality of detection components are evenly distributed on the processing table, and the detection components include a right-angle plate fixed to the processing table, an injection pipe is slidably provided through the side of the right-angle plate, and a tapered pipe is fixed to the end of the injection pipe. The detection assembly also includes two hydraulic rods No. 2 that are horizontally fixed to the side of the mounting block. The ends of the two hydraulic rods No. 2 are fixed to an end plate. A conical head is fixed to the side of the end plate opposite to the hydraulic rods No. 2. The conical tube and the conical head are arranged in opposite directions and collinearly. A rubber sealing sleeve is fixed to the conical surface of both the conical tube and the conical head. The detection assembly also includes a slide block slidably mounted on the processing table, and the slide block is located between the tapered tube and the tapered head. Two fixing blocks are fixedly connected to the slide block, and two No. 1 hydraulic rods are fixedly connected to each other on the inner sidewalls of the two fixing blocks. Each No. 1 hydraulic rod has a clamping plate fixedly connected to its end, and the two clamping plates are located on both sides of the central axis of the tapered tube.

[0007] Preferably, the vertical section of the right-angle plate is slidably provided with two limiting shafts, and the ends of the two limiting shafts opposite to the conical head are jointly fixed to a movable plate. The injection pipe is fixed through and fixed to the side of the movable plate, and the end of the injection pipe opposite to the conical pipe is connected to an external pressure tank through a hose.

[0008] Preferably, each of the limiting shafts is fitted with a spring, and the springs are located between the vertical section of the right-angle plate and the movable plate. The ends of the limiting shafts opposite to the movable plate are fixed with baffles for limiting.

[0009] Preferably, two limiting rods are slidably disposed through the side of the slide block, and each limiting rod has a vertical plate fixed to its end. The vertical plate is fixed on the processing table. Each limiting rod is fitted with a tension spring, and the working end of the tension spring is fixed on the side wall of the vertical plate and the side wall of the slide block on the opposite side of the tapered tube, respectively.

[0010] Preferably, a second pressure sensor is fixed on the slide block, and the second pressure sensor is located below the central axis of the tapered tube. A bracket is fixed to the end plate, and an infrared temperature sensor is fixed under the bracket.

[0011] Preferably, a pressure relief pipe is fixedly connected to the injection pipe, the end of the pressure relief pipe is connected to the collection pipe through a flexible tube, and a pressure relief valve is fixed on the pressure relief pipe.

[0012] Preferably, a solenoid valve and a pressure sensor are fixed on the injection tube, and the pressure sensor is located on the side close to the conical tube.

[0013] The advantages of this utility model are: This invention improves the connection effect of the hydraulic valve by allowing the two ports of the hydraulic valve to continue moving one side of the right-angle plate while the tapered tube and tapered head are blocked, and the rubber sealing sleeve will deform during the extrusion process. The pressure sensor No. 1 is used to detect the internal pressure of the hydraulic valve, and multiple detection components are set to detect multiple hydraulic valves at the same time. There is no need to connect extra parts to the hydraulic valve before detection, making the operation more convenient. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the first three-dimensional structure in this embodiment; Figure 2 This is an enlarged schematic diagram of the main structure of the detection component in this embodiment; Figure 3 This is an enlarged schematic diagram of the main structure of the slide block in this embodiment; Figure 4 This is an enlarged cross-sectional view of the main structure of the tapered tube in this embodiment; Figure 5 This is a cross-sectional enlarged schematic diagram of the main structure of the conical head in this embodiment.

[0016] In the diagram: 1. Processing table; 11. Mounting block; 2. Detection components; 21. Right-angle plate; 22. Limiting shaft; 23. Movable plate; 24. Spring; 25. Baffle; 26. Injection pipe; 27. Conical pipe; 28. Solenoid valve; 29. ​​Pressure sensor No. 1; 210. Pressure relief pipe; 211. Pressure relief valve; 212. Vertical plate; 213. Limiting rod; 214. Slide seat; 215. Tension spring; 216. Fixing block; 217. Hydraulic rod No. 1; 218. Clamping plate; 219. Hydraulic rod No. 2; 220. End plate; 221. Bracket; 222. Infrared temperature sensor; 223. Conical head; 224. Rubber sealing sleeve; 225. Pressure sensor No. 2. Detailed Implementation

[0017] 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 scope of protection of the present utility model.

[0018] Please see Figure 1-5 As shown, a multi-station hydraulic valve test bench includes a processing table 1, a mounting block 11 fixed in the middle of the processing table 1, and a plurality of evenly distributed detection components 2 on the processing table 1. Each detection component 2 includes a right-angle plate 21 fixed to the processing table 1, an injection pipe 26 extending through and sliding on the side of the right-angle plate 21, and a tapered pipe 27 fixed to the end of the injection pipe 26. The detection component 2 also includes two second hydraulic rods 219 horizontally fixed to the side of the mounting block 11. The ends of the two second hydraulic rods 219 are jointly fixed to an end plate 220. A conical head 223 is fixed to the side of the end plate 220 opposite to the second hydraulic rod 219. The conical tube 27 and the conical head 223 are arranged in opposite directions and collinearly. A rubber sealing sleeve 224 is fixed on the conical surface of both the conical tube 27 and the conical head 223. The detection component 2 further includes a slide block 214 slidably disposed on the processing table 1, and the slide block 214 is located between the tapered tube 27 and the tapered head 223. Two fixing blocks 216 are fixedly connected to the slide block 214, and two hydraulic rods 217 are fixed opposite to each other on the inner sidewalls of the two fixing blocks 216. Each end of the hydraulic rod 217 is fixedly connected to a clamping plate 218, and the two clamping plates 218 are respectively located on both sides of the central axis of the tapered tube 27.

[0019] The vertical section of the right-angle plate 21 is slidably provided with two limiting shafts 22. The ends of the two limiting shafts 22 opposite to the conical head 223 are fixedly connected to a movable plate 23. The injection pipe 26 is fixed through and fixed to the side of the movable plate 23. The ends of the injection pipe 26 opposite to the conical pipe 27 are connected to an external pressure tank through a hose.

[0020] Each limiting shaft 22 is fitted with a spring 24, and each spring 24 is located between the vertical section of the right-angle plate 21 and the movable plate 23. Each end of the limiting shaft 22 opposite to the movable plate 23 is fixedly connected with a baffle 25 for limiting.

[0021] Two limiting rods 213 are slidably arranged through the side of the slide block 214. Each end of the limiting rod 213 is fixed to a vertical plate 212, and the vertical plate 212 is fixed on the processing table 1. Each limiting rod 213 is fitted with a tension spring 215, and the active end of the tension spring 215 is fixed on the side wall of the vertical plate 212 and the side wall of the slide block 214 on the opposite side of the tapered tube 27, respectively.

[0022] A second pressure sensor 225 is fixed on the slide block 214, and the second pressure sensor 225 is located below the central axis of the tapered tube 27. A bracket 221 is fixed on the end plate 220, and an infrared temperature sensor 222 is fixed under the bracket 221.

[0023] A pressure relief pipe 210 is fixedly connected to the injection pipe 26. The end of the pressure relief pipe 210 is connected to the collection pipe through a flexible tube. A pressure relief valve 211 is fixed on the pressure relief pipe 210.

[0024] The injection tube 26 is fixed with a solenoid valve 28 and a pressure sensor 29, and the pressure sensor 29 is located on the side close to the tapered tube 27.

[0025] During operation, the existing hydraulic valve test bench can only test a single hydraulic valve at a time. When dealing with large-scale testing, it requires a lot of time, resulting in slow testing speed and low testing efficiency. In this solution, in the initial state, the spring 24 will always push the movable plate 23 to the side opposite to the vertical section of the right angle plate 21, so that the limiting shaft 22 extends to the side of the conical head 223 and drives the baffle 25 to fit against the side wall of the right angle plate 21, pushing the movable plate 23 away from the right angle plate 21 and moving the conical tube 27 towards the conical head 223. Meanwhile, the tension spring 215 will pull the slide 214 to the side opposite to the conical tube 27, so that the slide 214 slides closer to the side of the conical head 223 on the limiting rod 213, thereby driving the components on it to move closer to the side of the conical head 223. In use, the hydraulic valve to be detected is placed on the second pressure sensor 225, with the two ports of the hydraulic valve approximately aligned with the tapered tube 27 and the tapered head 223, respectively. When the second pressure sensor 225 detects pressure, the device terminal controls the extension of the two first hydraulic rods 217 within the corresponding component. The two first hydraulic rods 217 extend in opposite directions to center and clamp the hydraulic valve located on the second pressure sensor 225 when the two clamping plates 218 extend simultaneously. This aligns the two ports of the hydraulic valve so that they are directly aligned with the tapered tube 27 and the tapered head 223, respectively. Subsequently, the device terminal controls the extension of the two second hydraulic rods 219, which, through the end plate 220, drive the tapered head 223 closer to the tapered tube 27. The tapered head 223 moves towards one of the ports of the hydraulic valve, and its tapered shape and end fitting into the corresponding port of the hydraulic valve. With the continuous extension of the second hydraulic rods 219, the hydraulic valve... The hydraulic valve will move closer to the tapered tube 27. Since the hydraulic valve is clamped by the two clamping plates 218, when the second hydraulic rod 219 extends, it will move horizontally on the two limiting rods 213 through the slide 214. During the horizontal movement, the slide 214 pulls the tension spring 215 to extend. When the hydraulic valve moves to its other port, the tapered end of the tapered tube 27 will fit into its opening, thereby sealing the tapered tube 27 and the tapered head 223 in the two ports of the hydraulic valve respectively. At this time, the second hydraulic rod 219 continues to extend so that the two ports of the hydraulic valve continue to move one side of the right angle plate 21 under the sealing state of the tapered tube 27 and the tapered head 223. At this time, it will push the movable plate 23 to move, so that the movable plate 23 moves closer to the right angle plate 21 and compresses the spring 24 to contract. Under the reaction force of the spring 24, the sealing performance of the tapered tube 27 and the tapered head 223 to the hydraulic valve is improved. During the compression process, the rubber sealing sleeve 224 will deform to further improve the connection effect of the hydraulic valve. Then, the solenoid valve 28 is opened to inject oil into the hydraulic valve through the injection pipe 26 and the tapered pipe 27 under the action of the delivery pump. The pressure inside the hydraulic valve is detected by the first pressure sensor 29. Then, the injection pipe 26 is closed at one end for a period of time, and the pressure change is detected in real time by the first pressure sensor 29 to detect whether there is any leakage in the hydraulic valve and to know the pressure resistance of the hydraulic valve. After the hydraulic valve is injected with oil, its temperature will also change due to the pressure change. The temperature change is detected by the infrared temperature sensor 222 to comprehensively know its performance indicators under various working conditions. After the test is completed, the pressure relief valve 211 is opened, and the high-pressure oil in the valve body enters the collection tank through the pressure relief pipe 210. The second hydraulic rod 219 will retract. When the second hydraulic rod 219 retracts, the conical head 223 and the conical tube 27 will move out from their two ports respectively. Under the action of the spring 24 and the tension spring 215, the conical tube 27 and the slide 214 will be reset to prepare for the next test. Furthermore, by setting multiple detection components 2, multiple hydraulic valves can be detected simultaneously, and there is no need to connect extra parts to the hydraulic valves before detection, making operation more convenient; It achieves the function of multi-station testing of hydraulic valves, which is more convenient to use than traditional hydraulic test benches, and can test multiple hydraulic valves at the same time, with faster testing speed and higher efficiency.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A multi-position hydraulic valve test bench, characterized in that: The equipment includes a processing table (1), a mounting block (11) is fixed in the middle of the processing table (1), and a plurality of detection components (2) are evenly distributed on the processing table (1). The detection component (2) includes a right-angle plate (21) fixed on the processing table (1), and an injection tube (26) is slidably provided through the side of the right-angle plate (21), and a tapered tube (27) is fixed to the end of the injection tube (26). The detection component (2) also includes two second hydraulic rods (219) horizontally fixed to the side of the mounting block (11). The ends of the two second hydraulic rods (219) are jointly fixed with an end plate (220). A conical head (223) is fixed to the side of the end plate (220) opposite to the second hydraulic rod (219). The conical tube (27) and the conical head (223) are arranged in opposite directions and collinearly. A rubber sealing sleeve (224) is fixed on the conical surface of both the conical tube (27) and the conical head (223). The detection component (2) further includes a slide (214) slidably disposed on the processing table (1), and the slide (214) is located between the tapered tube (27) and the tapered head (223). Two fixing blocks (216) are fixedly connected to the slide (214), and two hydraulic rods (217) are fixed opposite to each other on the inner sidewalls of the two fixing blocks (216). Each end of the hydraulic rod (217) is fixedly connected to a clamp (218), and the two clamps (218) are located on both sides of the central axis of the tapered tube (27).

2. The multi-position hydraulic valve test bench according to claim 1, characterized in that: The vertical section of the right-angle plate (21) is slidably provided with two limiting shafts (22). The ends of the two limiting shafts (22) opposite to the conical head (223) are fixedly connected to a movable plate (23). The injection pipe (26) is fixed through and fixed to the side of the movable plate (23). The ends of the injection pipe (26) opposite to the conical pipe (27) are connected to an external pressure tank through a hose.

3. The multi-station hydraulic valve test bench according to claim 2, characterized in that: Each of the limiting shafts (22) is fitted with a spring (24), and each spring (24) is located between the vertical section of the right-angle plate (21) and the movable plate (23). Each of the ends of the limiting shafts (22) and the movable plate (23) is fixed with a baffle (25) for limiting.

4. The multi-station hydraulic valve test bench according to claim 1, characterized in that: The slide (214) has two limiting rods (213) that slide through and slide on its side. Each of the limiting rods (213) has a vertical plate (212) fixed to its end. The vertical plate (212) is fixed on the processing table (1). Each of the limiting rods (213) is fitted with a tension spring (215). The working end of the tension spring (215) is fixed on the side wall of the vertical plate (212) and the side wall of the slide (214) on the opposite side of the tapered tube (27).

5. A multi-station hydraulic valve test bench according to claim 1, characterized in that: The slide (214) is fixed with a second pressure sensor (225), and the second pressure sensor (225) is located below the central axis of the tapered tube (27). The end plate (220) is fixed with a bracket (221), and an infrared temperature sensor (222) is fixed under the bracket (221).

6. The multi-position hydraulic valve test bench according to claim 1, characterized in that: A pressure relief pipe (210) is fixedly connected to the injection pipe (26). The end of the pressure relief pipe (210) is connected to the collection pipe through a hose. A pressure relief valve (211) is fixed on the pressure relief pipe (210).

7. A multi-station hydraulic valve test bench according to claim 1, characterized in that: A solenoid valve (28) and a pressure sensor (29) are fixed on the injection tube (26), and the pressure sensor (29) is located on the side close to the conical tube (27).

Images