Hydraulic element testing device

Abstract

The utility model discloses a hydraulic element testing device which comprises a base, an experiment mechanism is arranged on the top face of the base and used for conducting experiments on a hydraulic cylinder, the experiment mechanism comprises an air filling assembly, and the hydraulic element testing device relates to the technical field of hydraulic element testing. According to the hydraulic element testing device, a user can conveniently and directly observe a detection result through the arranged fixing barrel, when the hydraulic element testing device is used, the upper end of a piston is inserted into a clamping barrel, then an adjusting screw rod is rotated to fix the position of the piston, then a cylinder barrel is placed on the top face of an air filling assembly, and the cylinder barrel is fixed through the clamping assembly; then a driving motor is started to drive a second screw rod to rotate to enable a movable plate to descend, meanwhile, the movable plate can drive a mounting plate to insert a piston into a cylinder barrel, then a gas filling assembly is started to fill gas into the cylinder barrel, the gas can jack up the piston, and at the moment, the position height of an adjusting screw rod is observed through a fixed barrel to judge the sealing performance of the hydraulic barrel; the detection precision is improved, and the practicability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic component testing, and particularly relates to a hydraulic component testing device. Background Technique

[0002] Hydraulic component testing is to test the performance, reliability and durability of various components in a hydraulic system to ensure that they can work properly and meet the design requirements in actual applications. This requires detecting the sealing performance when the cylinder barrel and the piston cooperate to work, checking the sealing performance of the hydraulic component, and ensuring no leakage under the working pressure.

[0003] Chinese Patent CN220227374U discloses a hydraulic component testing device, which includes a bottom plate. An installation box is arranged on the bottom plate. An air injection pipe is arranged at the top end of the installation box. An inflation device is arranged on the bottom plate, and the inflation device is communicated with the installation box through a connecting pipe. A clamping mechanism is arranged on the bottom plate. A hydraulic component is installed on the connecting pipe, and the hydraulic component is clamped and fixed by the clamping mechanism. An installation frame is arranged on the bottom plate. A lifting mechanism is arranged on the installation frame. A connecting rod is vertically arranged on the lifting mechanism, and the bottom end of the connecting rod is fixedly connected with a piston extending into the hydraulic component. For this hydraulic component testing device, the hydraulic cylinder barrel can be placed on the installation box, so that the inner bottom end of the hydraulic cylinder barrel is connected with the air injection pipe. Then, the piston is inserted into the hydraulic cylinder barrel through the lifting mechanism, and then the hydraulic cylinder barrel is inflated through the inflation mechanism. Whether the piston is pushed up is used to judge whether the sealing performance in the hydraulic cylinder body meets the standard.

[0004] Based on the above-mentioned prior art, the currently existing hydraulic component testing devices still have the following problems. The clamping devices of the existing devices cannot adapt to hydraulic cylinder barrels of different sizes, and the applicable range is limited. Moreover, it depends on the user to visually observe whether the piston is pushed up to judge the sealing performance of the cylinder barrel, and the detection accuracy is relatively low, and the practicability is average. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a hydraulic component testing device, which solves the problems that the existing hydraulic component testing devices cannot adapt to hydraulic cylinder barrels of different sizes, the applicable range is limited, the detection accuracy is relatively low, and the practicability is average.

[0006] To achieve the above purposes, the utility model is realized through the following technical solutions: A hydraulic component testing device includes a base, and an experimental mechanism for conducting experiments on a hydraulic cylinder is arranged on the top surface of the base. The experimental mechanism includes:

[0007] An air filling assembly, which is arranged on the top surface of the base and is used for filling air into the cylinder barrel for subsequent detection;

[0008] The clamping assembly is arranged on the top surface of the installation box and is used to clamp and fix the position of the cylinder barrel;

[0009] The detection assembly is arranged on the top surface of the base and is used to detect the sealing performance when the cylinder barrel and the piston cooperate to work. The detection assembly includes a fixed frame fixedly installed on the base. A second screw rod is movably installed on the top surface of the inner cavity of the fixed frame. Two limiting rods are fixedly installed on the bottom surface of the inner cavity of the fixed frame. A driving motor is fixedly installed on the top surface of the fixed frame. An activity plate is movably installed inside the fixed frame. An installation plate is fixedly installed on the right side of the activity plate. A fixed cylinder is fixedly installed on the top surface of the installation plate. A groove is formed on the right side of the fixed cylinder. A spring is fixedly installed on the top surface of the inner cavity of the groove. A clamping cylinder is movably installed inside the fixed cylinder. A limiting ring is fixedly installed on the outer side of the clamping cylinder. An adjusting screw rod is threadedly installed on the outer side of the clamping cylinder.

[0010] Preferably, the top end of the second screw rod movably penetrates through the inside of the fixed frame and is fixedly installed at the output end of the driving motor. The bottom end of the second screw rod is threadedly installed through the top surface of the activity plate and is movably installed on the bottom surface of the inner cavity of the fixed frame. The top ends of the two limiting rods both movably penetrate through the bottom surface of the activity plate and are fixedly installed on the top surface of the inner cavity of the fixed frame.

[0011] Preferably, the bottom end of the spring is fixedly installed on the top surface of the clamping cylinder. The bottom end of the clamping cylinder movably penetrates through the top surface of the installation plate and extends to the bottom surface of the installation plate. The bottom surface of the limiting ring is closely attached to the top surface of the installation plate. The right end of the adjusting screw rod movably penetrates through the inside of the groove and extends to the outside of the groove. The left end of the adjusting screw rod threadedly penetrates through the outer side of the clamping cylinder and extends to the inside of the clamping cylinder.

[0012] Preferably, the gas filling assembly includes an installation box fixedly installed on the top surface of the base. An air inflation pump is fixedly installed on the top surface of the base. The output end of the air inflation pump is fixedly installed with a valve pipe. The top end of the installation box is fixedly installed with an air outlet pipe. The left end of the valve pipe penetrates through the right side of the installation box and extends to the inside of the installation box.

[0013] Preferably, the clamping assembly includes fixing plates fixedly installed on the front and rear sides of the top surface of the installation box. Two clamping plates and two first screw rods are movably installed on the opposite sides of the fixing plates. Handles are fixedly installed at the front ends of the two first screw rods. Arc plates are fixedly installed on the opposite sides of the two clamping plates.

[0014] Preferably, the rear ends of the two first screw rods are both threadedly installed through the front sides of the two clamping plates and are movably installed on the opposite sides of the fixing plates. The front ends of the two first screw rods both movably penetrate through the opposite sides of the fixing plates and are fixedly installed at one end of the handle.

[0015] Beneficial effects

[0016] The utility model provides a hydraulic component test device. Compared with the prior art, it has the following beneficial effects:

[0017] (1) For this hydraulic component test device, the fixed cylinder is provided to facilitate the user to directly observe the test results. During use, the upper end of the piston is inserted into the clamping cylinder, and then the adjusting screw is rotated to fix the position of the piston. Then, the cylinder barrel is placed on the top surface of the gas filling component and fixed by the clamping component. Then, the driving motor is started to drive the second screw to rotate, causing the movable plate to descend. At the same time, the movable plate will drive the mounting plate to insert the piston into the cylinder barrel. Then, the gas filling component is started to fill the cylinder barrel with gas, and the gas will push the piston up. At this time, the position height of the adjusting screw is observed through the fixed cylinder to judge the sealing performance of the hydraulic cylinder, improving the test accuracy and having good practicability.

[0018] (2) For this hydraulic component test device, the arc plate is provided to clamp and fix cylinder barrels of different sizes and specifications. During use, the cylinder barrel is placed on the top surface of the fixed plate so that the air outlet pipe is located inside the cylinder barrel. Then, the handle is rotated to drive the first screw to rotate, causing the clamping plate to move towards the position of the cylinder barrel. At this time, the clamping plate will drive the arc plate to clamp and fix the cylinder barrel, improving the application range of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the three-dimensional external view schematic diagram of the utility model;

[0020] Figure 2 is the three-dimensional external view schematic diagram of the clamping component of the utility model;

[0021] Figure 3 is the three-dimensional external view schematic diagram of the gas filling component of the utility model;

[0022] Figure 4 is the three-dimensional external view schematic diagram of the detection component of the utility model;

[0023] Figure 5 is the three-dimensional external view schematic diagram of the partial section of the utility model.

[0024] In the figure: 1 - base, 2 - experimental mechanism, 21 - gas filling component, 211 - installation box, 212 - air outlet pipe, 213 - valve pipe, 214 - air inflation pump, 22 - clamping component, 221 - fixed plate, 222 - clamping plate, 223 - first screw, 224 - arc plate, 225 - handle, 23 - detection component, 231 - fixed frame, 232 - second screw, 233 - limiting rod, 234 - mounting plate, 235 - adjusting screw, 236 - groove, 237 - movable plate, 238 - fixed cylinder, 239 - driving motor, 2310 - clamping cylinder, 2311 - limiting ring, 2312 - spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] The present utility model provides two technical solutions:

[0027] Figure 1 and Figures 4 - 5 The first implementation manner is shown: A hydraulic component test device includes a base 1, and an experimental mechanism 2 is provided on the top surface of the base 1 for conducting experiments on hydraulic cylinders. The experimental mechanism 2 includes:

[0028] An air filling assembly 21, which is provided on the top surface of the base 1 and is used to fill the cylinder barrel with air for subsequent detection;

[0029] A clamping assembly 22, which is provided on the top surface of the installation box 211 and is used to clamp and fix the position of the cylinder barrel;

[0030] The detection component 23 is arranged on the top surface of the base 1 and is used to detect the sealing performance when the cylinder barrel and the piston cooperate to work. The detection component 23 includes a fixed frame 231 fixedly installed on the base 1. A second screw rod 232 is movably installed on the top surface of the inner cavity of the fixed frame 231. Two limiting rods 233 are fixedly installed on the bottom surface of the inner cavity of the fixed frame 231. A driving motor 239 is fixedly installed on the top surface of the fixed frame 231. An activity plate 237 is movably installed inside the fixed frame 231. An installation plate 234 is fixedly installed on the right side of the activity plate 237. A fixed cylinder 238 is fixedly installed on the top surface of the installation plate 234, and a scale line is fixedly installed on the right side of the fixed cylinder 238. A groove 236 is formed on the right side of the fixed cylinder 238. A spring 2312 is fixedly installed on the top surface of the inner cavity of the groove 236. A clamping cylinder 2310 is movably installed inside the fixed cylinder 238. A limiting ring 2311 is fixedly installed on the outer side of the clamping cylinder 2310. An adjusting screw rod 235 is threadedly installed on the outer side of the clamping cylinder 2310. The top end of the second screw rod 232 movably penetrates through the inside of the fixed frame 231 and is fixedly installed on the output end of the driving motor 239. The bottom end of the second screw rod 232 threadedly penetrates through the top surface of the activity plate 237 and is movably installed on the bottom surface of the inner cavity of the fixed frame 231. Starting the driving motor 239 can drive the second screw rod 232 to rotate to make the activity plate 237 rise and fall. The top ends of the two limiting rods 233 both movably penetrate through the bottom surface of the activity plate 237 and are fixedly installed on the top surface of the inner cavity of the fixed frame 231. The lifting track of the activity plate 237 can be limited by the two limiting rods 233. The bottom end of the spring 2312 is fixedly installed on the top surface of the clamping cylinder 2310. The bottom end of the clamping cylinder 2310 movably penetrates through the top surface of the installation plate 234 and extends to the bottom surface of the installation plate 234. The elastic force of the spring 2312 can drive the clamping cylinder 2310 to insert the piston into the cylinder barrel. The bottom surface of the limiting ring 2311 closely adheres to the top surface of the installation plate 234. The position of the clamping cylinder 2310 can be fixed by the limiting ring 2311. The right end of the adjusting screw rod 235 movably penetrates through the inside of the groove 236 and extends to the outside of the groove 236. The left end of the adjusting screw rod 235 threadedly penetrates through the outer side of the clamping cylinder 2310 and extends to the inside of the clamping cylinder 2310. Rotating the adjusting screw rod 235 can abut against the piston to fix the position of the piston.

[0031] The provided fixed cylinder 238 facilitates the user to directly observe the detection result. During use, the upper end of the piston is inserted into the interior of the clamping cylinder 2310, and then the adjusting screw 235 is rotated to fix the position of the piston. Next, the cylinder barrel is placed on the top surface of the gas filling assembly 21, and the cylinder barrel is fixed by the clamping assembly 22. Then, the driving motor 239 is started to drive the second screw 232 to rotate, causing the movable plate 237 to descend. At the same time, the movable plate 237 drives the mounting plate 234 to insert the piston into the interior of the cylinder barrel. Subsequently, the gas filling assembly 21 is started to fill the cylinder barrel with gas, and the gas will push the piston upward. At this time, the position height of the adjusting screw 235 is observed through the fixed cylinder 238 to judge the sealing performance of the hydraulic cylinder, improving the detection accuracy and having good practicability.

[0032] Figures 1 - 3 The second implementation manner is shown. The main difference from the first implementation manner is that the gas filling assembly 21 includes an installation box 211 fixedly installed on the top surface of the base 1. An air inflation pump 214 is fixedly installed on the top surface of the base 1. A valve pipe 213 is fixedly installed at the output end of the air inflation pump 214. An air outlet pipe 212 is fixedly installed at the top end of the installation box 211. The left end of the valve pipe 213 penetrates through the right side of the installation box 211 and extends into the interior of the installation box 211, and the gas in the air inflation pump 214 can be filled into the interior of the installation box 211 through the valve pipe 213. The clamping assembly 22 includes fixing plates 221 fixedly installed on the front and rear sides of the top surface of the installation box 211. Two clamping plates 222 and two first screws 223 are movably installed on the opposite sides of the fixing plates 221. Handles 225 are fixedly installed at the front ends of the two first screws 223. Arc plates 224 are fixedly installed on the opposite sides of the two clamping plates 222. The rear ends of the two first screws 223 are threadedly penetrated through the front sides of the two clamping plates 222 and movably installed on the opposite sides of the fixing plates 221. The front ends of the two first screws 223 are movably penetrated through the opposite sides of the fixing plates 221 and fixedly installed at one end of the handle 225, and rotating the handle 225 can drive the two first screws 223 to rotate, causing the arc plates 224 to move towards the opposite sides through the two clamping plates 222 to clamp the cylinder barrel.

[0033] The provided arc plates 224 can clamp and fix cylinder barrels of different sizes and specifications. During use, the cylinder barrel is placed on the top surface of the fixing plate 221 so that the air outlet pipe 212 is located inside the cylinder barrel. Then, the handle 225 is rotated to drive the first screw 223 to rotate, causing the clamping plate 222 to move towards the position of the cylinder barrel. At this time, the clamping plate 222 drives the arc plate 224 to clamp and fix the cylinder barrel, improving the applicable range of the device.

[0034] Meanwhile, the content not described in detail in this specification belongs to the well-known prior art in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used.

[0035] In use, the user connects the device to power supply. When using, the upper end of the piston is inserted into the interior of the clamping cylinder 2310, and then the adjusting screw 235 is rotated to fix the position of the piston. Then, the cylinder barrel is placed on the top surface of the fixing plate 221 so that the air outlet pipe 212 is located inside the cylinder barrel. Then, the handle 225 is rotated to drive the first screw 223 to rotate, causing the clamping plate 222 to move towards the cylinder barrel. At this time, the clamping plate 222 will drive the arc plate 224 to clamp and fix the cylinder barrel. Then, the driving motor 239 is started to drive the second screw 232 to rotate, causing the movable plate 237 to descend. At this time, the movable plate 237 will drive the mounting plate 234 to insert the piston into the cylinder barrel. Then, the air pump 214 is started to open the air outlet pipe 212 into the interior of the mounting box 211. At this time, the gas in the mounting box 211 will be filled into the cylinder barrel through the air outlet pipe 212. At this time, the gas will push the piston up. At this time, the position height of the adjusting screw 235 is observed through the fixed cylinder 238 to judge the sealing performance of the hydraulic cylinder.

[0036] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising" - "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process - method - article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process - method - article or device.

[0037] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic component testing device, comprising a base (1), characterized in that: The top surface of the base (1) is provided with an experimental mechanism (2) for conducting experiments on the hydraulic cylinder, and the experimental mechanism (2) comprises: An air filling assembly (21), arranged on the top surface of the base (1) and used for filling air into the cylinder for subsequent testing; A clamping assembly (22) is arranged on the top surface of the installation box (211) and is used to clamp and fix the cylinder barrel; A detection assembly (23) is arranged on the top surface of the base (1) and is used to detect the sealing performance of the cylinder and the piston when working together. The detection assembly (23) comprises a fixed frame (231) fixedly mounted on the base (1), a second screw (232) is movably mounted on the top surface of the inner cavity of the fixed frame (231), two limit rods (233) are fixedly mounted on the bottom surface of the inner cavity of the fixed frame (231), a driving motor (239) is fixedly mounted on the top surface of the fixed frame (231), and a movable plate (237) is movably mounted inside the fixed frame (231). A mounting plate (234) is fixedly installed on the right side of the movable plate (237), a fixing cylinder (238) is fixedly installed on the top surface of the mounting plate (234), a groove (236) is opened on the right side of the fixing cylinder (238), a spring (2312) is fixedly installed on the top surface of the inner cavity of the groove (236), a clamping cylinder (2310) is movably installed inside the fixing cylinder (238), a limiting ring (2311) is fixedly installed on the outer side of the clamping cylinder (2310), and an adjusting screw (235) is threadedly installed on the outer side of the clamping cylinder (2310).

2. A hydraulic component testing device according to claim 1, characterized in that: The top end of the second screw rod (232) movably passes through the interior of the fixed frame (231) and is fixedly mounted on the output end of the driving motor (239); the bottom end of the second screw rod (232) is threadedly mounted to pass through the top surface of the movable plate (237) and is movably mounted on the bottom surface of the inner cavity of the fixed frame (231); the top ends of the two limiting rods (233) movably pass through the bottom surface of the movable plate (237) and are fixedly mounted on the top surface of the inner cavity of the fixed frame (231).

3. A hydraulic component testing device according to claim 1, characterized in that: The bottom end of the spring (2312) is fixedly mounted on the top surface of the clamping tube (2310); the bottom end of the clamping tube (2310) movably passes through the top surface of the mounting plate (234) and extends to the bottom surface of the mounting plate (234); the bottom surface of the limiting ring (2311) is tightly attached to the top surface of the mounting plate (234); the right end of the adjusting screw (235) movably passes through the interior of the groove (236) and extends to the outside of the groove (236); the left end of the adjusting screw (235) threadably passes through the outside of the clamping tube (2310) and extends to the inside of the clamping tube (2310).

4. A hydraulic component testing device according to claim 1, characterized in that: The gas filling assembly (21) comprises an installation box (211) fixedly mounted on the top surface of the base (1); an air pump (214) is fixedly mounted on the top surface of the base (1); a valve pipe (213) is fixedly mounted on the output end of the air pump (214); an air outlet pipe (212) is fixedly mounted on the top end of the installation box (211); the left end of the valve pipe (213) passes through the right side of the installation box (211) and extends to the interior of the installation box (211).

5. A hydraulic component testing device according to claim 1, characterized in that: The clamping assembly (22) comprises a fixing plate (221) fixedly mounted on the front and rear sides of the top of the installation box (211); two clamping plates (222) and two first screw rods (223) are movably mounted on the opposite sides of the fixing plate (221); handles (225) are fixedly mounted on the front ends of the two first screw rods (223); and arc plates (224) are fixedly mounted on the opposite sides of the two clamping plates (222).

6. A hydraulic component testing device according to claim 5, characterized in that: The rear ends of the two first screw rods (223) are threadedly penetrated through the front sides of the two clamping plates (222) and are movably mounted on the opposite side of the fixing plate (221); the front ends of the two first screw rods (223) are movably penetrated through the opposite side of the fixing plate (221) and are fixedly mounted on one end of the handle (225).

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