Hydraulic element impact fatigue test bench

Abstract

The utility model discloses a hydraulic element impact fatigue test bench which comprises a fixed base, the upper surface of the fixed base is fixedly connected with a protective shell, the upper end of the protective shell is provided with a supporting baffle, the lower end of the supporting baffle is fixedly connected with the upper surface of the fixed base, and the upper surface of the supporting baffle is fixedly connected with a driving air cylinder. And the output end of the driving air cylinder penetrates through the supporting baffle, a positioning connecting frame is installed at the output end of the driving air cylinder, and a bearing baffle is fixed to the lower end of the positioning connecting frame. The hydraulic element impact fatigue test bench is provided with the hot-air blower and the water pump, water in the water tank is guided to the spraying head through the water pump, the spraying head can conveniently flow the water into the groove of the protective shell from the mixing cavity of the protective shell, and therefore the hydraulic element on the surface of the bearing baffle is wetted, and the high-humidity test environment is achieved; and the hot-air blower introduces hot air through the air outlet pipe, so that a high-temperature test environment is conveniently achieved, and the practicability of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic element processing technical field, concretely is a kind of hydraulic element impact fatigue test bench. BACKGROUND

[0002] Hydraulic element is the basic component of hydraulic system, it plays control, regulation, transport hydraulic oil and various functions in hydraulic system, hydraulic pump is the power source of hydraulic system, its role is to convert the mechanical energy inputted by prime mover into liquid pressure energy, hydraulic cylinder is the device for converting hydraulic energy into mechanical energy, mainly used to realize linear reciprocating motion, the main function of hydraulic motor is to convert hydraulic energy into mechanical energy, output torque and rotational speed, for driving rotary load, direction control valve is used to control the direction of oil flow in hydraulic system, to change the movement direction of actuator, pressure control valve is used to control the pressure in hydraulic system, flow control valve is used to control the flow of oil in hydraulic system, to control the movement speed of actuator.

[0003] The actual working condition reproduction capability of the existing hydraulic element impact fatigue test bench is poor when in use, the actual hydraulic system working environment is complex and various, including different temperature and humidity and other factors, however, many existing test benches are difficult to simulate the impact fatigue under high-temperature environment and high-humidity environment at the same time. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of hydraulic element impact fatigue test bench to solve the problem that the many existing test benches are difficult to simulate the impact fatigue under high-temperature environment and high-humidity environment at the same time as proposed in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of hydraulic element impact fatigue test bench, including fixed base, its upper surface is fixedly connected with protective housing, the upper end of the protective housing is provided with support baffle, and support baffle lower end is fixedly connected with the upper surface of fixed base, the upper surface of support baffle is fixedly connected with drive cylinder, and the output end of drive cylinder penetrates support baffle, the output end of drive cylinder is installed with positioning connecting frame, the lower end of positioning connecting frame is fixed with supporting baffle, the side surface of fixed base is provided with controller, the lower end of positioning connecting frame is open design, and the inner wall of the lower end of positioning connecting frame is slidably connected with limit clip block, and the side surface of limit clip block is installed with transmission screw, the upper surface of fixed base is fixed with hydraulic cylinder, the top surface of the cavity of positioning connecting frame is provided with telescopic connector, the inside of protective housing is provided with simulation mechanism, which is convenient for detecting by simulating high-temperature and high-humidity environment through air heater and water tank and air outlet pipe and spray head.

[0006] Preferably, the positioning connecting frame is in sliding connection with the supporting baffle, and the upper end of the positioning connecting frame has a width greater than that of the groove of the protective shell.

[0007] By the above technical scheme, the positioning connecting frame is in sliding connection with the supporting baffle, so that the positioning connecting frame is driven by the driving cylinder to slide, and the upper end of the positioning connecting frame can close the groove of the protective shell.

[0008] Preferably, the surface of the supporting baffle is designed as a hollow structure, the limiting clamp is in sliding connection with the positioning connecting frame, the side surface of the limiting clamp is provided with a V-shaped groove, the limiting clamp is in threaded connection with the transmission screw, and the transmission screw is in rotary connection with the positioning connecting frame.

[0009] By the above technical scheme, the surface of the supporting baffle is designed as a hollow structure, so that the supporting baffle can filter and separate water, and the limiting clamp is driven by the transmission screw to slide, so that the limiting clamp is clamped and fixed through the V-shaped groove.

[0010] Preferably, the hydraulic cylinder is connected to the upper end of the positioning connecting frame through a hose, and one end of the telescopic connector is in communication with the hose of the hydraulic cylinder.

[0011] By the above technical scheme, the hydraulic cylinder guides hydraulic oil into the telescopic connector, so that the telescopic connector tests the hydraulic element.

[0012] Preferably, the simulation mechanism comprises a hot air blower arranged on the upper surface of the fixed base, a water tank fixed to the upper surface of the fixed base, a water pump mounted on the upper end of the water tank, a mixing cavity arranged on the inner wall of the protective shell, an air outlet pipe mounted on the inner wall of the mixing cavity of the protective shell, a spraying head arranged on the top surface of the mixing cavity of the protective shell, and a drainage pipeline fixedly connected to the lower surface of the fixed base.

[0013] By the above technical scheme, the hot air blower guides hot air into the air outlet pipe, so that the air outlet pipe guides air into the mixing cavity of the protective shell.

[0014] Preferably, the hot air blower is in communication with the air outlet pipe through a pipeline, and the water pump is in communication with the spraying head.

[0015] By the above technical scheme, the water pump guides water in the water tank to the spraying head, so that the spraying head sprays water into the mixing cavity of the protective shell.

[0016] Preferably, the drainage pipeline is designed as an L shape, the upper end of the drainage pipeline is in communication with the fixed base and the protective shell, the air outlet pipe and the spraying head are arranged perpendicularly to each other, and an opening is arranged between the mixing cavity of the protective shell and the groove of the protective shell.

[0017] The technical scheme is adopted, and the excess water can be conveniently discharged through the drain pipe, and the hot air and the water are mixed through the air outlet pipe and the spraying head.

[0018] Compared with the prior art, the hydraulic component impact fatigue test bench has the advantages that:

[0019] 1. The water pump is arranged, so that when the device works, the water in the water tank is guided to the spraying head through the water pump, the spraying head is convenient for spraying the water from the mixing cavity of the protective shell into the groove of the protective shell, thereby the hydraulic components on the surface of the supporting baffle are moistened, so that the high-humidity test environment is achieved, and the hot air is introduced into the air outlet pipe through the air outlet pipe, so that the high-temperature test environment is achieved, and the practicability of the device is improved.

[0020] 2. The air outlet pipe and the spraying head are arranged, so that when the device works, the hot air and the water mist are introduced at the same time, the air outlet pipe and the spraying head are vertically arranged, so that the hot air and the water mist are contacted and mixed, thereby the high-temperature and high-humidity environment is formed, the uniformity of the environment simulation is improved, and the effect of subsequent detection is beneficial.

[0021] 3. The limiting clamp and the transmission screw are arranged, so that when the device works, the limiting clamp is conveniently slid through the thread by rotating the transmission screw, the two limiting clamps are slid close to each other, the hydraulic components are conveniently clamped and fixed, then the hydraulic components are connected through the telescopic connector to be tested, and the V-shaped groove on the surface of the limiting clamp improves the fastening effect of the hydraulic components. DRAWINGS

[0022] Figure 1 It is a three-dimensional structure schematic view of the fixed base and the protective shell connected in the utility model;

[0023] Figure 2 It is a three-dimensional structure schematic view of the supporting baffle and the driving cylinder connected in the utility model;

[0024] Figure 3 It is a three-dimensional structure schematic view of the positioning connecting frame and the supporting baffle connected in the utility model;

[0025] Figure 4 It is a three-dimensional structure schematic view of the positioning connecting frame and the telescopic connector connected in the utility model;

[0026] Figure 5 It is a three-dimensional structure schematic view of the limiting clamp and the transmission screw connected in the utility model;

[0027] Figure 6 It is a three-dimensional structure schematic view of the protective shell and the air outlet pipe connected in the utility model.

[0028] In the figure: 1, fixed base; 2, protective shell; 3, support baffle; 4, drive cylinder; 5, positioning connecting frame; 6, supporting baffle; 7, controller; 8, limiting clamp block; 9, transmission screw; 10, hydraulic cylinder; 11, telescopic connector; 12, hot air blower; 13, water tank; 14, water pump; 15, air outlet pipe; 16, spray head; 17, drainage pipeline. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0030] Please refer to Figures 1-6 The utility model provides a kind of technical solutions: a kind of hydraulic element impact fatigue test bench, including fixed base 1, protective shell 2, support baffle 3, drive cylinder 4, positioning connecting frame 5, supporting baffle 6, controller 7, limiting clamp block 8, transmission screw 9, hydraulic cylinder 10, telescopic connector 11, hot air blower 12, water tank 13, water pump 14, air outlet pipe 15, spray head 16 and drainage pipeline 17, fixed base 1, its upper surface is fixedly connected with protective shell 2, the upper end of protective shell 2 is provided with support baffle 3, and support baffle 3 lower end is fixedly connected with the upper surface of fixed base 1, positioning connecting frame 5 and support baffle 3 form sliding connection, the width of positioning connecting frame 5 upper end is greater than the width of the recess of protective shell 2, when using the device, first drive cylinder 4 on the surface of support baffle 3 drives the positioning connecting frame 5 of output end to move, the hydraulic element to be tested is placed on the upper surface of supporting baffle 6.

[0031] The upper surface of the support baffle 3 is fixedly connected with a driving cylinder 4, the output end of the driving cylinder 4 penetrates the support baffle 3, the output end of the driving cylinder 4 is provided with a positioning connecting frame 5, the surface of the supporting baffle 6 is designed as a hollow, the limiting clamp block 8 is in sliding connection with the positioning connecting frame 5, the side surface of the limiting clamp block 8 is provided with a V-shaped groove, the limiting clamp block 8 is in threaded connection with a transmission screw 9, the transmission screw 9 is in rotary connection with the positioning connecting frame 5, a hydraulic cylinder 10 is connected with the upper end of the positioning connecting frame 5 through a hose, one end of an extension connecting head 11 is connected with the hose of the hydraulic cylinder 10, the transmission screw 9 is driven to slide horizontally by the limiting clamp block 8 through the thread, the hydraulic element is limited by the V-shaped groove of the limiting clamp block 8, the fastening of the hydraulic element is improved, then the extension connecting head 11 is connected with the hydraulic element, the positioning connecting frame 5 and the supporting baffle 6 are driven by the driving cylinder 4 to extend into the protective shell 2 for detection, so that the hydraulic cylinder 10 is guided into the hydraulic element through the extension connecting head 11 to work.

[0032] The lower end of the positioning connecting frame 5 is fixed with the supporting baffle 6, the side surface of the fixed base 1 is provided with a controller 7, the lower end of the positioning connecting frame 5 is designed as an opening, the lower end of the positioning connecting frame 5 is in sliding connection with the limiting clamp block 8 on the inner wall, the side surface of the limiting clamp block 8 is provided with the transmission screw 9, the simulation mechanism includes a hot air blower 12, the hot air blower 12 is arranged on the upper surface of the fixed base 1, the upper surface of the fixed base 1 is fixed with a water tank 13, the upper end of the water tank 13 is provided with a water pump 14, the inner wall of the protective shell 2 is provided with a mixing cavity, the inner wall of the mixing cavity of the protective shell 2 is provided with an air outlet pipe 15, the top surface of the mixing cavity of the protective shell 2 is provided with a spraying head 16, the lower surface of the fixed base 1 is fixedly connected with a drainage pipeline 17, the hot air blower 12 and the water pump 14 are controlled by the controller 7, the hot air and the water mist are guided into the mixing cavity of the protective shell 2 through the air outlet pipe 15 and the spraying head 16 respectively, so as to change the internal environment of the protective shell 2, and the high temperature and high humidity conditions are added to the detection environment.

[0033] The upper surface of the fixed base 1 is fixed with a hydraulic cylinder 10, the top surface of the positioning connecting frame 5 cavity is provided with a telescopic connector 11, the inside of the protective shell 2 is provided with a simulation mechanism, which is convenient for simulating a high temperature and high humidity environment for detection through a hot air blower 12, a water tank 13, an air outlet pipe 15 and a spray head 16, the hot air blower 12 is communicated with the air outlet pipe 15 through a pipeline, the water pump 14 is communicated with the spray head 16, the drainage pipeline 17 is designed in an L shape, the upper end of the drainage pipeline 17 is communicated with the fixed base 1 and the protective shell 2, the air outlet pipe 15 and the spray head 16 are arranged vertically to each other, an opening is arranged between the mixing cavity of the protective shell 2 and the groove of the protective shell 2, when the air outlet pipe 15 and the spray head 16 discharge hot air and water mist at the same time, the air outlet pipe 15 and the spray head 16 arranged vertically to each other will make the hot air and the water mist mix with each other, then the high temperature gas and the water mist are introduced into the groove of the protective shell 2, which is beneficial to increase the uniformity of temperature and moisture distribution, is beneficial to simultaneously achieve a high temperature and high humidity detection environment, and through the supporting baffle 6 designed in a hollow shape, it is convenient to filter out excess moisture when the detection is finished, and finally the water flow is discharged through the drainage pipeline 17 for cleaning.

[0034] Working principle: when the hydraulic element impact fatigue test bench is used, the hydraulic element is placed on the upper surface of the supporting baffle 6, so that the driving air cylinder 4 drives the positioning connecting frame 5 to descend, the threaded rod drives the limiting clamp block 8 to slide horizontally to clamp and fix the hydraulic element by rotating the transmission screw 9, so that the telescopic connector 11 is connected with the hydraulic element and tested through the hydraulic cylinder 10, the hot air and the water mist are introduced into the air outlet pipe 15 and the spray head 16 through the hot air blower 12 and the water pump 14, so that the air outlet pipe 15 and the spray head 16 mix the hot air and the water mist, so that a high temperature and high humidity environment is formed in the inside of the protective shell 2 for testing, which improves the detection effect, and the supporting baffle 6 is used for filtering water, and finally the drainage pipeline 17 is used for draining water, which increases the overall practicability.

[0035] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A hydraulic component impact fatigue test bench, comprising a fixed base (1), the upper surface of which is fixedly connected with a protective shell (2), characterized in that: The upper end of the protective shell (2) is provided with a support baffle (3), and the lower end of the support baffle (3) is fixedly connected with the upper surface of the fixed base (1), the upper surface of the support baffle (3) is fixedly connected with a driving cylinder (4), and the output end of the driving cylinder (4) penetrates the support baffle (3), the output end of the driving cylinder (4) is provided with a positioning connecting frame (5), the lower end of the positioning connecting frame (5) is fixedly provided with a supporting baffle (6), the side surface of the fixed base (1) is provided with a controller (7), the lower end of the positioning connecting frame (5) is designed as an opening, and the inner wall of the lower end of the positioning connecting frame (5) is slidably connected with a limiting clamp block (8), the side surface of the limiting clamp block (8) is provided with a transmission screw (9), the upper surface of the fixed base (1) is fixedly provided with a hydraulic cylinder (10), the top surface of the cavity of the positioning connecting frame (5) is provided with a telescopic connector (11), and the inside of the protective shell (2) is provided with a simulation mechanism.

2. The hydraulic component impact fatigue test bench of claim 1, wherein: The positioning connecting frame (5) and the support baffle (3) are slidably connected, and the upper end of the positioning connecting frame (5) is wider than the width of the groove of the protective shell (2).

3. The hydraulic component impact fatigue test bench of claim 1, wherein: The surface of the supporting baffle (6) is designed as a hollow, the limiting clamp block (8) and the positioning connecting frame (5) are slidably connected, the side surface of the limiting clamp block (8) is provided with a V-shaped groove, the limiting clamp block (8) and the transmission screw (9) are threadedly connected, and the transmission screw (9) and the positioning connecting frame (5) are rotatably connected.

4. The hydraulic component impact fatigue test bench of claim 1, wherein: The hydraulic cylinder (10) is connected with the upper end of the positioning connecting frame (5) through a hose, and one end of the telescopic connector (11) is communicated with the hose of the hydraulic cylinder (10).

5. The hydraulic component impact fatigue test bench of claim 1, wherein: The simulation mechanism comprises a hot air blower (12) arranged on the upper surface of the fixed base (1), the upper surface of the fixed base (1) is fixedly provided with a water tank (13), the upper end of the water tank (13) is provided with a water pump (14), the inner wall of the protective shell (2) is provided with a mixing cavity, the inner wall of the mixing cavity of the protective shell (2) is provided with an air outlet pipe (15), the top surface of the mixing cavity of the protective shell (2) is provided with a spraying head (16), and the lower surface of the fixed base (1) is fixedly connected with a drainage pipeline (17).

6. A hydraulic component impact fatigue test bench according to claim 5, characterized in that: The hot air blower (12) is communicated with the air outlet pipe (15) through a pipeline, and the water pump (14) is communicated with the spraying head (16).

7. The hydraulic component impact fatigue test bench of claim 5, wherein: The drainage pipeline (17) is designed as an L shape, the upper end of the drainage pipeline (17) is communicated with the fixed base (1) and the protective shell (2), the air outlet pipe (15) and the spraying head (16) are arranged perpendicularly to each other, and an opening is arranged between the mixing cavity of the protective shell (2) and the groove of the protective shell (2).

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