A material continuous jet rain erosion test device

Abstract

The application relates to the technical field of detection test devices, and discloses a material continuous jet rain erosion test device which comprises a rack, a striking unit, a jet unit and a support table. The striking unit comprises a hammer accelerating assembly and a driving assembly, the hammer accelerating assembly and the driving assembly are arranged on the rack, one end of the hammer accelerating assembly is connected with the driving assembly, when the driving assembly is in a first motion state, the driving assembly drives the hammer accelerating assembly to rotate counterclockwise around the connecting point with the rack, when the driving assembly is in a second motion state, the hammer accelerating assembly resets clockwise, the jet unit comprises a jet generating assembly and the support table, the jet generating assembly is installed at the top end of the support table, when the hammer accelerating assembly resets, the other end of the hammer accelerating assembly strikes the jet generating assembly to generate high-speed jets, and the test piece is impacted by the generated high-speed jets. The application can generate continuous jets with good shapes, different speeds and variable frequencies, and has the advantages of simple structure, low cost and wide application range.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of detection test device, in particular to a material continuous jet rain erosion test device. BACKGROUND

[0002] When a high-speed aircraft passes through a cloud or a rain area, there is a significant relative velocity between the aircraft and the raindrops, which can cause high-speed impact between the aircraft and the raindrops. This impact may cause damage to the surface material of the aircraft. This liquid-solid high-speed impact accompanied by surface erosion is called "rain erosion". The surface damage caused by rain erosion can damage some structures of the aircraft, affect its use effect, and even shorten its service life. Simulating the impact of a single raindrop on a material can study the damage behavior and damage evolution process of the material under the impact of a single continuous raindrop. However, in a heavy rain process, multiple raindrop coupling impact is easy to occur. This coupling is easy to change the stress state inside the solid. Therefore, it is necessary to simulate this multiple droplet coupling impact condition.

[0003] The continuous droplet test method includes a single droplet continuous test method and a multiple droplet continuous test method, which can study the damage evolution process of the material under the impact of a single continuous droplet or multiple continuous droplets. The single droplet continuous test method in the prior art simulates the raindrop shape which does not conform to the actual situation, and the shape and size of the raindrop are not easy to control. The multiple droplet continuous test method also faces the deficiency of test technology, making it difficult to carry out test research on multiple droplet coupling impact.

[0004] Therefore, there is an urgent need for a material continuous jet rain erosion test device to solve the above problems. SUMMARY

[0005] The purpose of the present application is to provide a material continuous jet rain erosion test device to solve the above problems existing in the prior art.

[0006] To achieve the above purpose, the present application provides the following scheme: the present application provides a material continuous jet rain erosion test device, comprising:

[0007] a rack;

[0008] a striking unit, comprising a hammer accelerating assembly and a driving assembly, the hammer accelerating assembly and the driving assembly are respectively arranged on the rack, and one end of the hammer accelerating assembly is connected with the driving assembly, wherein when the driving assembly is in a first motion state, the hammer accelerating assembly is driven to rotate counterclockwise around the connection point with the rack, and when the driving assembly is in a second motion state, the hammer accelerating assembly is reset clockwise;

[0009] The jet unit comprises a jet generating assembly and a support platform, the jet generating assembly is installed at the top end of the support platform, and the other end of the hammer accelerating assembly impacts the jet generating assembly to generate high-speed jet flow when the hammer accelerating assembly is reset, and the test piece is impacted by the generated high-speed jet flow.

[0010] The material continuous jet rain erosion test device provided by the application comprises a hammer accelerating assembly,

[0011] A lever is rotatably connected to the frame through a rotating shaft, and a hammer is fixedly connected to the bottom of one end of the lever.

[0012] A lifting ring is hingedly connected to the bottom of the other end of the lever, and the lifting ring is connected to the driving assembly through a belt.

[0013] A tension spring is hingedly connected to the top of the other end of the lever, and the other end of the tension spring is hingedly connected to the frame.

[0014] The driving assembly of the material continuous jet rain erosion test device provided by the application comprises:

[0015] A rotating wheel is rotatably connected to the frame, and one end of the belt is fixedly connected to the rotating wheel.

[0016] A transmission shaft is rotatably connected to the middle part of the rotating wheel, and a rebound lever and a belt wheel are fixedly connected to the two ends of the transmission shaft, respectively, and the belt wheel is connected to the output end of the motor through a transmission belt.

[0017] A pin is arranged on the rotating wheel and in contact with the rebound lever, and the rotating wheel is driven to rotate through the pin when the rebound lever rotates.

[0018] The rotating wheel of the material continuous jet rain erosion test device provided by the application is provided with a plurality of through holes at equal intervals in the circumferential direction, and the pin is detachably connected to the through hole.

[0019] The rebound lever of the material continuous jet rain erosion test device provided by the application comprises a fixed plate and a rebound plate, the fixed plate is fixedly connected to the transmission shaft, the rebound plate is in contact with the pin, the rebound plate is hingedly connected to the fixed plate through a rebound hinge, a sliding boss is fixedly connected to the frame, and a pushing block is fixedly connected to the rebound plate, wherein when the pushing block is in contact with the sliding boss, the rebound plate rotates around the rebound hinge, so that the rebound plate is separated from the pin.

[0020] The jet generating assembly of the material continuous jet rain erosion test device provided by the application comprises:

[0021] A nozzle is embedded in the support table through a cover plate, a lower boss is fixedly connected to the top end of the nozzle, an upper boss is fixedly connected to the top end of the lower boss, and a gap is arranged between the lower boss and the upper boss;

[0022] A striker shaft is slidingly connected in the nozzle, the nozzle is supplied with water through a water supply device, and when the striker shaft is hit by the hammer, the water in the nozzle generates a high-speed jet;

[0023] The top of the striker shaft is a boss structure, and the boss structure is located in the gap.

[0024] According to the material continuous jet rain erosion test device provided by the application, a guide sleeve is fixedly connected in the lower boss, the guide sleeve is sleeved on the striker shaft, a return spring is sleeved on the guide sleeve, one end of the return spring is fixedly connected to the bottom end of the boss structure, and the other end of the return spring is fixedly connected to the lower boss.

[0025] According to the material continuous jet rain erosion test device provided by the application, the water supply device comprises:

[0026] A water storage pool is connected with a water supply connector through a silica gel hose, and the water supply connector is communicated with the nozzle.

[0027] A peristaltic pump is installed on the silica gel hose.

[0028] According to the material continuous jet rain erosion test device provided by the application, a test piece clamp is further included, the test piece clamp comprises a mounting platform, the mounting platform is mounted on the support table through a universal joint, the mounting platform is located below the nozzle, and the test piece is mounted on the mounting platform.

[0029] A water removal device is arranged on the support table, the water removal device comprises a high-pressure gas source fixedly connected to the support table, the high-pressure gas source is provided with a gas nozzle through an electromagnetic valve, and the gas nozzle is used for blowing gas to the test piece.

[0030] According to the material continuous jet rain erosion test device provided by the application, the nozzle comprises:

[0031] A cylindrical hole is communicated with a fine hole through an excessive inclined surface at the bottom end of the cylindrical hole.

[0032] A water supply hole is located on one side of the cylindrical hole and communicated with the cylindrical hole, and the water supply connector is communicated with the water supply hole.

[0033] A groove is formed in the top end of the cylindrical hole, and a sealing ring is arranged in the groove.

[0034] Compared with the prior art, the application has the following advantages and technical effects:

[0035] The application provides a material continuous jet rain erosion test device, in use, the hammer accelerating assembly is in a horizontal state in an initial state, when the driving assembly is in a first motion state, the hammer accelerating assembly is pulled counterclockwise by the driving assembly, when the hammer accelerating assembly rotates to a certain angle, the driving assembly enters a second motion state, at this time, the driving assembly does not exert a downward pulling force on the hammer accelerating assembly, the hammer accelerating assembly is reset clockwise, after the clockwise reset, the other end of the hammer accelerating assembly impacts the jet generating assembly, so that the jet generating assembly generates a high-speed jet to impact a test piece, through the above process, continuous jet is realized, in addition, by adjusting the switching time of the first motion state and the second motion state of the driving assembly and the reset pulling force of the hammer accelerating assembly, the speed of the jet can be controlled, and the angle of the test piece can be adjusted to realize impact simulation at different angles, thereby meeting different test requirements. The application has simple structure, low cost, wide application range, can generate continuous jet with good shape, different speed and variable frequency, and can simulate the continuous raindrop impact condition encountered in the flight of an airplane. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor under the premise of the drawings:

[0037] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0038] Figure 2 It is a front view of the test device of the present application;

[0039] Figure 3 It is a schematic diagram of the initial state of the hammer accelerating assembly of the present application;

[0040] Figure 4 It is a schematic diagram of the overall structure of the driving assembly of the present application;

[0041] Figure 5 It is a side view of the driving assembly of the present application;

[0042] Figure 6 It is a schematic diagram of the structure of the jet generating assembly of the present application;

[0043] Figure 7 It is a schematic diagram of the nozzle structure of the present application;

[0044] Figure 8 It is a schematic diagram of the structure of the second embodiment of the present application;

[0045] Wherein, 1, jet flow generating assembly; 101, lower boss; 102, upper boss; 103, impact shaft; 104, return spring; 105, guide sleeve; 106, cover plate; 107, sealing ring; 108, nozzle; 1081, groove; 1082, water supply hole; 1083, cylindrical hole; 1084, fine hole; 1085, excessive inclined surface; 2, support table; 3, impact hammer accelerating assembly; 301, impact hammer; 302, lever; 303, pivot; 304, tension spring; 305, lifting ring; 4, rack; 5, belt; 6, driving assembly; 601, motor; 602, transmission belt; 603, transmission shaft; 604, rebound lever; 6041, fixed plate; 6042, rebound plate; 6043, rebound hinge; 605, rotating wheel; 606, pulley; 607, push block; 608, pin; 609, sliding boss; 610, through hole; 7, water supply device; 701, water supply connector; 702, peristaltic pump; 703, water storage tank; 8, water removal device; 801, air nozzle; 802, electromagnetic valve; 803, high-pressure gas source; 9, test piece clamp; 901, universal joint; 902, mounting platform. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0047] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0048] Embodiment one:

[0049] With reference to Figures 1-7 The present application provides a material continuous jet flow rain erosion test device, comprising:

[0050] Rack 4;

[0051] Impact unit, comprising impact hammer accelerating assembly 3 and driving assembly 6, impact hammer accelerating assembly 3 and driving assembly 6 are respectively arranged on rack 4, and one end of impact hammer accelerating assembly 3 is connected with driving assembly 6, wherein when driving assembly 6 is in a first motion state, impact hammer accelerating assembly 3 is driven to rotate counterclockwise around the connection point with rack 4, and when driving assembly 6 is in a second motion state, impact hammer accelerating assembly 3 is reset clockwise;

[0052] The jet flow unit comprises a jet flow generating assembly 1 and a support table 2, the jet flow generating assembly 1 is installed at the top end of the support table 2, and the other end of a hammer accelerating assembly 3 impacts the jet flow generating assembly 1 to generate high-speed jet flow when the hammer accelerating assembly 3 is reset, and the test piece is impacted by the generated high-speed jet flow.

[0053] In one embodiment of the present application, in use, the hammer accelerating assembly 3 is in a horizontal state in an initial state, when the driving assembly 6 is in a first movement state, the driving assembly 6 pulls the hammer accelerating assembly 3 to rotate counterclockwise, when the hammer accelerating assembly 3 rotates to a certain angle, the driving assembly 6 enters a second movement state, at this time, the driving assembly 6 does not exert a downward pulling force on the hammer accelerating assembly 3, the hammer accelerating assembly 3 is reset clockwise, and after the clockwise reset, the other end of the hammer accelerating assembly 3 impacts the jet flow generating assembly 1 to make the jet flow generating assembly 1 generate high-speed jet flow to impact the test piece, and the jet flow test is completed.

[0054] As an optional embodiment, the hammer accelerating assembly 3 comprises:

[0055] A lever 302 is rotationally connected to the rack 4 through a rotating shaft 303, and a hammer 301 is fixedly connected to the bottom of one end of the lever 302;

[0056] A lifting ring 305 is hingedly connected to the bottom of the other end of the lever 302, and the lifting ring 305 is connected to the driving assembly 6 through a belt 5;

[0057] A tension spring 304 is hingedly connected to the top of the other end of the lever 302, and the other end of the tension spring 304 is hingedly connected to the rack 4.

[0058] In one embodiment of the present application, the lever 302 is rotationally connected to the rack 4, when the driving assembly 6 pulls the lifting ring 305 downward through the belt 5, the lever 302 is driven to rotate counterclockwise around the hinged point, when the driving assembly 6 releases the force exerted on the lifting ring 305, the lever 302 is reset clockwise through the tension spring 304, and then the hammer 301 impacts the jet flow generating assembly 1 to generate high-speed jet flow.

[0059] As an optional embodiment, the driving assembly 6 comprises:

[0060] A rotating wheel 605 is rotationally connected to the rack 4, and one end of the belt 5 is fixedly connected to the rotating wheel 605;

[0061] A transmission shaft 603 is rotationally connected to the middle part of the rotating wheel 605, and a rebound lever 604 and a belt pulley 606 are fixedly connected to the two ends of the transmission shaft 603, respectively, and the belt pulley 606 is connected to the output end of a motor 601 through a transmission belt 602;

[0062] A pin 608 is arranged on the rotating wheel 605 and in contact with the rebound lever 604, when the rebound lever 604 rotates, the rotating wheel 605 is driven to rotate through the pin 608.

[0063] In one embodiment of the present application, the motor 601 drives the pulley 606 to rotate, and the pulley 606 synchronously drives the rebound lever 604 to rotate, the rebound lever 604 contacts with the pin 608, and then the pin 608 drives the rotating wheel 605 to rotate when the rebound lever 604 rotates, and the rotating wheel 605 drives the lever 302 to rotate counterclockwise through the belt 5.

[0064] As an optional embodiment, a plurality of through holes 610 are equidistantly arranged on the rotating wheel 605, and the pin 608 is detachably connected with the through hole 610.

[0065] In one embodiment of the present application, the pin 608 is inserted into the corresponding through hole 610 to control the jet speed.

[0066] As an optional embodiment, the rebound lever 604 comprises a fixed plate 6041 and a rebound plate 6042, the fixed plate 6041 is fixedly connected with the transmission shaft 603, the rebound plate 6042 contacts with the pin 608, the rebound plate 6042 is hingedly connected with the fixed plate 6041 through a rebound hinge 6043, the sliding boss 609 is fixedly connected with the machine frame 4, and the driving block 607 is fixedly connected with the rebound plate 6042, wherein when the driving block 607 contacts with the sliding boss 609, the rebound plate 6042 rotates around the rebound hinge 6043 to separate the rebound plate 6042 from the pin 608, and after the rebound plate 6042 is separated from the pin 608, the rotating wheel 605 rotates back to reset under the action of the belt 5 and the tension spring 304, and then the process is repeated to realize the repeated swing of the lever 302 and the continuous jet process.

[0067] In one embodiment of the present application, the rebound lever 604 is a split structure, the fixed plate 6041 and the rebound plate 6042 are hingedly connected through the rebound hinge 6043, and in the initial state, the fixed plate 6041 and the rebound plate 6042 are in a planar state, at this time, the pin 608 is synchronously rotated by the rebound plate 6042 to drive the rotating wheel 605 to rotate, and in the running process, when the driving block 607 on the rebound plate 6042 contacts with the sliding boss 609, the rebound plate 6042 gradually enters a bent state to separate the rebound plate 6042 from the pin 608.

[0068] As an optional embodiment, the jet generating assembly 1 comprises:

[0069] The nozzle 108 is embedded in the support table 2 through the cover plate 106, the lower boss 101 is fixedly connected with the top end of the nozzle 108, the upper boss 102 is fixedly connected with the top end of the lower boss 101, and a gap is arranged between the lower boss 101 and the upper boss 102.

[0070] The impact shaft 103 is slidingly connected in the nozzle 108, and the nozzle 108 is supplied with water by the water supply device 7, and when the impact shaft 103 is impacted by the hammer 301, the water in the nozzle 108 generates a high-speed jet flow;

[0071] The top of the impact shaft 103 is a boss structure, and the boss structure is located in the gap.

[0072] In an embodiment of the present application, the nozzle 108 is embedded on the table top of the support table 2, water is supplied to the nozzle 108 through the water supply device 7, and at the same time, the hammer 301 impacts the impact shaft 103 to make it spray the water in the nozzle 108 from the bottom end of the nozzle 108 to generate a high-speed jet flow, and the lower boss 101 and the upper boss 102 are arranged to limit the impact shaft 103.

[0073] As an optional implementation, the lower boss 101 is fixedly connected with a guide sleeve 105, the guide sleeve 105 is sleeved on the impact shaft 103, a return spring 104 is sleeved on the guide sleeve 105, one end of the return spring 104 is fixedly connected with the bottom end of the boss structure, and the other end of the return spring 104 is fixedly connected with the lower boss 101.

[0074] In an embodiment of the present application, when the impact shaft 103 moves downward, the return spring 104 is compressed and shrinks, and vice versa, when the hammer 301 is separated from the impact shaft 103, the return spring 104 drives the impact shaft 103 to reset.

[0075] As an optional implementation, the water supply device 7 comprises:

[0076] The water storage tank 703 is connected with a water supply connector 701 through a silica gel hose, and the water supply connector 701 is in communication with the nozzle 108.

[0077] The peristaltic pump 702 is installed on the silica gel hose.

[0078] In an embodiment of the present application, the water storage tank 703 stores water, and the peristaltic pump 702 and the water supply connector 701 are arranged to deliver water to the nozzle 108.

[0079] As an optional implementation, the test piece clamp 9 is further included, the test piece clamp 9 comprises a mounting platform 902, the mounting platform 902 is mounted on the support table 2 through a universal joint 901, and the mounting platform 902 is located below the nozzle 108, and a test piece is mounted on the mounting platform 902.

[0080] The support table 2 is provided with a water removal device 8, and the water removal device 8 comprises a high-pressure gas source 803 fixedly connected to the support table 2, and the high-pressure gas source 803 is installed with a gas nozzle 801 through an electromagnetic valve 802, and the gas nozzle 801 is used for blowing gas to the test piece.

[0081] In one embodiment of the present application, the installation platform 902 is used to install the test piece, and the angle of the installation platform 902 can be adjusted through the universal joint 901, so that the impact angle reaches a predetermined value.

[0082] In one embodiment of the present application, because the water supply in the nozzle 108 is difficult to accurately control, the excess water will flow out of the nozzle outlet and form a water film on the test piece, and a gas nozzle 801 is needed to blow high-pressure gas to remove the excess water at the nozzle outlet and the water film on the surface of the test piece.

[0083] As an optional implementation, the nozzle 108 comprises:

[0084] The cylindrical hole 1083 is communicated with the fine hole 1084 at the bottom end through the excessive slope 1085;

[0085] The water supply hole 1082 is located on one side of the cylindrical hole 1083 and is communicated with the cylindrical hole 1083, and the water supply connector 701 is communicated with the water supply hole 1082;

[0086] The top end of the cylindrical hole 1083 is provided with a groove 1081, and the groove 1081 is provided with a sealing ring 107.

[0087] In one embodiment of the present application, the impact shaft 103 is slidingly connected in the cylindrical hole 1083, the water supply connector 701 is communicated with the water supply hole 1082 to deliver water to the cylindrical hole 1083, and the impact between the hammer 301 and the impact shaft 103 will make the impact shaft 103 move downward at a high speed in the cylindrical hole 1083 at a high speed, so that the water in the nozzle 108 is sprayed out to form a jet, and the groove 1081 is provided for installing the sealing ring 107.

[0088] In one embodiment of the present application, the fine hole 1084 with different diameters can be selected to generate jet with different diameters, which is used to simulate impact of liquid droplets with different diameters.

[0089] In one embodiment of the present application, the motor 601, the peristaltic pump 702 and the electromagnetic valve 802 are electrically connected with a PLC controller.

[0090] The present application provides a material continuous jet rain erosion test device, which is used in the following way:

[0091] The manual operation sends a command to the PLC controller, and the driving assembly 6 starts to work by starting the motor 601, and the water supply device 7 starts to work, water is supplied to the jet generating assembly 1, the torque output by the motor 601 is transmitted to the belt pulley 606 through the transmission belt 602, the belt pulley 606 is driven to rotate, the transmission shaft 603 is driven to rotate in turn by the belt pulley 606, and the rebound lever 604 is synchronously rotated, the rebound lever 604 rotates and contacts the pin 608 on the rotating wheel 605, so that the rotating wheel 605 is driven to rotate, the rotation of the rotating wheel 605 makes the belt 5 tight and wound on the outer circle of the rotating wheel 605, the tension of the belt 5 drives the lever 302 to rotate counterclockwise, and the stretched spring 304 is elongated and stores energy, when the driving block 607 at the front end of the rebound lever 604 moves to a certain position on the sliding boss 609, the bending of the rebound lever 604 reaches a certain degree, the rebound lever 604 is out of contact with the pin 608, at this time, the water supply device 7 stops working, the water removal device 8 works, the air nozzle 801 blows air for a short time, and the tension of the belt 5 disappears, the lever 302 is accelerated to rotate clockwise under the action of the stretched spring 304, the hammer 301 impacts the impact shaft 103, a jet is generated from the nozzle 108, then the rotating belt pulley 606 is rotated, the driving assembly 6 continues to work, and the above process is repeated, so that the jet can be generated continuously for many times.

[0092] Embodiment two:

[0093] With reference to Figure 8 In the embodiment, the number of the fine holes 1084 can be set to be multiple, and the fine holes 1084 are respectively communicated with the cylindrical holes 1083 through the excessive inclined surfaces 1085.

[0094] In an embodiment of the present application, multiple fine holes 1084 are arranged, so that multiple jets can be generated simultaneously in one impact, and the material response when multiple liquid drops impact the test piece simultaneously can be simulated.

[0095] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0096] The above-described embodiments are only descriptions of the preferred modes of the present application, and do not limit the scope of the present application, and various modifications and improvements to the technical solutions of the present application made by those skilled in the art without departing from the design spirit of the present application shall fall within the protection scope of the present application defined by the claims.

Claims

1. A material continuous stream rain erosion test apparatus, characterized by, The utility model relates to a high-speed jet impact test device, including: A frame (4); A hammer acceleration assembly (3) and a driving assembly (6) are arranged on the frame (4) respectively, and one end of the hammer acceleration assembly (3) is connected with the driving assembly (6), wherein when the driving assembly (6) is in a first motion state, the hammer acceleration assembly (3) is rotated counterclockwise around the connecting point of the frame (4), and when the driving assembly (6) is in a second motion state, the hammer acceleration assembly (3) resets clockwise; A jet unit includes a jet generation assembly (1) and a support table (2), the jet generation assembly (1) is installed at the top end of the support table (2), and the other end of the hammer acceleration assembly (3) impacts the jet generation assembly (1) to generate high-speed jet when the hammer acceleration assembly (3) resets, and the test piece is impacted by the generated high-speed jet; The hammer acceleration assembly (3) includes a lever (302) rotatably connected to the frame (4) through a rotating shaft (303), and a hammer (301) is fixedly connected to the bottom of one end of the lever (302); a lifting ring (305) is hingedly connected to the bottom of the other end of the lever (302), the lifting ring (305) is connected with the driving assembly (6) through a belt (5), and a tension spring (304) is hingedly connected to the top of the other end of the lever (302), and the other end of the tension spring (304) is hingedly connected to the frame (4); the driving assembly (6) includes a rotating wheel (605) rotatably connected to the frame (4), one end of the belt (5) is fixedly connected with the rotating wheel (605), a transmission shaft (603) is rotatably connected to the middle part of the rotating wheel (605), the transmission shaft (603) is fixedly connected with a rebound lever (604) and a belt pulley (606) at both ends respectively, the belt pulley (606) is connected with the output end of a motor (601) through a transmission belt (602), and a pin (608) is arranged on the rotating wheel (605) and in contact with the rebound lever (604), when the rebound lever (604) rotates, the rotating wheel (605) is driven to rotate through the pin (608); a plurality of through holes (610) are equidistantly formed on the rotating wheel (605) in the circumferential direction, and the pin (608) and the through holes (610) are detachably connected.

2. A material continuous jet rain erosion test device according to claim 1, characterized in that: The spring-loaded lever (604) includes a fixed plate (6041) and a spring-loaded plate (6042). The fixed plate (6041) is fixedly connected to the transmission shaft (603). The spring-loaded plate (6042) is in contact with the pin (608). The spring-loaded plate (6042) is hinged to the fixed plate (6041) via a spring-loaded hinge (6043). A sliding boss (609) is fixedly connected to the frame (4). An actuating block (607) is fixedly connected to the spring-loaded plate (6042). When the actuating block (607) contacts the sliding boss (609), the spring-loaded plate (6042) rotates around the spring-loaded hinge (6043), causing the spring-loaded plate (6042) to separate from the pin (608).

3. A material continuous jet rain erosion test device according to claim 1, wherein The jet generating component (1) includes: The nozzle (108) is embedded in the support platform (2) through the cover plate (106). The nozzle (108) has a lower boss (101) fixedly connected to its top end, and an upper boss (102) fixedly connected to its top end. A gap is provided between the lower boss (101) and the upper boss (102). The impact shaft (103) is slidably connected inside the nozzle (108). The nozzle (108) is supplied with water through the water supply device (7). When the impact shaft (103) is struck by the hammer (301), the water in the nozzle (108) generates a high-speed jet. The top of the impact shaft (103) is a boss structure, which is located within the gap.

4. A material continuous jet rain erosion test apparatus according to claim 3, wherein: A guide sleeve (105) is fixedly connected inside the lower boss (101). The guide sleeve (105) is sleeved on the impact shaft (103). A return spring (104) is sleeved on the guide sleeve (105). One end of the return spring (104) is fixedly connected to the bottom end of the boss structure, and the other end of the return spring (104) is fixedly connected to the lower boss (101).

5. A material continuous jet rain erosion test apparatus according to claim 3, wherein The water supply device (7) includes: The water storage tank (703) is connected to a water supply connector (701) via a silicone hose, and the water supply connector (701) is connected to the nozzle (108); A peristaltic pump (702) is mounted on the silicone hose.

6. A material continuous jet rain erosion test apparatus according to claim 3, wherein: It also includes a test piece fixture (9), which includes a mounting platform (902), which is mounted on the support platform (2) via a universal joint (901), and the mounting platform (902) is located below the nozzle (108), and the test piece is mounted on the mounting platform (902); A water removal device (8) is provided on the support platform (2). The water removal device (8) includes a high-pressure air source (803) fixedly connected to the support platform (2). The high-pressure air source (803) is equipped with an air nozzle (801) through a solenoid valve (802). The air nozzle (801) is used to blow air onto the test piece.

7. A material continuous jet rain erosion test apparatus according to claim 5, wherein The nozzle (108) includes: A cylindrical hole (1083) has a fine hole (1084) at its bottom end through a transition slope (1085); A water supply hole (1082) is located on one side of the cylindrical hole (1083) and communicates with the cylindrical hole (1083). The water supply connector (701) is communicated with the water supply hole (1082). The top of the cylindrical hole (1083) is provided with a groove (1081), and a sealing ring (107) is provided in the groove (1081).

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