Electromagnetic cyclic impact test device and method thereof

Abstract

The invention discloses an electromagnetic circulating impact test device and method, belongs to the technical field of impact tests, and provides the following scheme that the electromagnetic circulating impact test device comprises an electromagnetic test mechanism, a test sealing mechanism is assembled on the electromagnetic test mechanism, and the electromagnetic test mechanism comprises a rack, an incident bar and a transmission bar; an electromagnetic test assembly is arranged on the rack, the test sealing mechanism comprises a shell, and the shell is fixedly installed on one side of the rack; the adjusting cavity is moved to drive the transmission assembly to move, so that the balls are matched with the chutes to realize transmission of the transmission assembly and the adjustable discharging assembly, the sample table is turned over and inclined, residues on the surface of the sample table can be poured into the cavity, dust removal operation can be performed in cooperation with the dust removal assembly in the pouring process, and a good test environment is kept; in this way, the purpose of automatic cleaning can be achieved, operation steps and difficulty are reduced, residues are collected through the cavity, and the residues can be conveniently cleaned through the side door.

Description

Technical Field

[0001] The present invention relates to the technical field of impact testing, and in particular to an electromagnetic cyclic impact testing device and a method thereof. Background Art

[0002] Impact tests are used to judge the impact resistance of rocks and are widely used in underground engineering and seismic structure design. At present, the Hopkinson bar test is the main test method for rock impact tests. The impact bar is mainly driven by compressed air, and sufficient charging time needs to be reserved between two tests, so it is difficult to apply to cyclic impact tests. At the same time, pneumatic bar pressure has problems such as low speed control accuracy and poor repeatability. Moreover, during impact tests, high-speed impact may shatter the rock, which is not only easy to cause harm to personnel, but also after the test, rock fragments will remain on the surface of the placement table, which is not convenient for quick cleaning, resulting in a long time for cleaning before the next test. It is difficult to conduct multiple tests continuously, and in the subsequent cleaning or sample placement process, if the equipment is accidentally started, it is very easy to cause harm to the cleaning personnel.

[0003] In view of the above problems, the present invention document proposes an electromagnetic cyclic impact test device and method. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that the prior art mainly uses compressed air to drive the impact equipment, and sufficient charging time needs to be reserved between two tests, so it is difficult to apply it to the cyclic impact test. At the same time, the pneumatic pressure rod has problems such as low speed control accuracy and poor repeatability, and when conducting the impact test, the high-speed impact may crush the rock, which is not only easy to cause harm to personnel, but also after the test, the rock fragments will remain on the surface of the placement table, which is not convenient for quick cleaning, resulting in a long time for cleaning before the next test, making it difficult to conduct multiple tests continuously, and in the subsequent cleaning or taking and placing of samples, if the equipment is accidentally started, it is very easy to cause harm to the cleaning personnel. The shortcomings of the electromagnetic cyclic impact test device and method are proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An electromagnetic cyclic impact test device comprises an electromagnetic test mechanism, on which a test sealing mechanism is mounted;

[0007] The electromagnetic test mechanism comprises a frame, an incident rod and a transmission rod, and an electromagnetic test assembly is arranged on the frame;

[0008] The test closing mechanism comprises a shell, the shell is fixedly mounted on one side of the frame, a dust removal assembly is arranged above the shell, an adjustable sealing assembly is arranged inside the shell, two adjustable discharge assemblies are arranged in the adjustable sealing assembly, two transmission assemblies and a positioning assembly arranged side by side with the transmission assembly are arranged below the adjustable sealing assembly, and a switch start assembly is arranged above the positioning assembly;

[0009] The transmission component passes through the adjustable sealing component and transmits to the adjustable discharge component. Two inclined grooves and two straight grooves are provided on the transmission component. Both ends of the two straight grooves are connected to the two inclined grooves. An elastic component is provided in one of the straight grooves. The elastic component is provided on the bottom wall of the shell. Two positioning openings are provided on the bottom wall of the shell.

[0010] Preferably, the electromagnetic test assembly comprises a coil pad, the coil pad is fixedly mounted on the frame, a coil group is mounted above the coil pad, a slider is provided above the coil group, an impact rod is mounted above the slider, the slider slides on two guide rails, and both ends of the two guide rails are fixed on the frame;

[0011] Two second damping pistons are installed on the side of the frame close to the electromagnetic test component, and the second damping pistons correspond to the slider. A first damping piston is installed on the side of the frame away from the electromagnetic test component. A first bearing pedestal is also installed on the frame. The incident rod is arranged in the first bearing pedestal. Second bearing pedestals are installed on both sides of the outer shell. The incident rod passes through one of the second bearing pedestals to enter the outer shell, and the transmission rod penetrates into the other second bearing pedestal, and the transmission rod corresponds to the first damping piston.

[0012] Preferably, the dust removal assembly includes a collection box, which is installed above the shell. The collection box is connected to the dust collector, and the dust collector is connected to the dust removal head, which is arranged on one side of the shell.

[0013] Preferably, the adjustable sealing assembly includes an adjusting cavity, which is divided into two cavities, a support plate is fixedly connected to one of the adjusting cavities, the bottom of the cavity is inclined, side doors are provided at the front and back of the adjusting cavity, and sliding bars are fixed on both sides of the adjusting cavity, the sliding bars slide in the sliding rails, and the sliding rails are fixed on the side walls of the outer shell.

[0014] Preferably, the positioning assembly comprises a rotating shaft, both ends of the rotating shaft are fixedly connected with handles, the rotating shaft is rotatably mounted below the adjustment cavity through two first bearing members, three cams are fixedly connected to the rotating shaft, a first torsion spring is fixed between the two first bearing members, the first torsion spring is sleeved outside the rotating shaft, and the other ends of the two first torsion springs are respectively fixedly connected to the two cams;

[0015] A convex ball is provided under each of the two cams, a positioning rod is fixedly connected under the convex ball, the positioning rod passes through a positioning cover, a first spring is fixedly connected between the bottom wall of the positioning cover and the convex ball, one of the positioning rods is inserted into a positioning port, and the positioning cover is fixed on the adjustment cavity.

[0016] Preferably, the switch starting assembly includes a horizontal bar, both ends of which are fixed between two positioning covers, a roller rod is passed through the middle of the horizontal bar, the lower part of the roller rod overlaps the middle cam, a block is fixed to the top of the roller rod, a second spring is fixed between the block and the horizontal bar, the upper part of the block is in contact with the main switch, and the main switch is installed below the regulating chamber.

[0017] Preferably, the adjustable discharge assembly includes a sample table, which is located in the cavity, one of the sample tables is in contact with the top of the support plate, a rotating rod is fixed to one side of the sample table, and the rotating rod is rotatably installed in the adjustment cavity through a second bearing member, one end of the second torsion spring is fixed to the rotating rod, and the other end of the second torsion spring is fixed to the second bearing member, the second torsion spring is sleeved outside the rotating rod, and a third bevel tooth is fixed to the rotating rod.

[0018] Preferably, the transmission assembly comprises a connecting shaft, a fixed plate and a roller, the first bevel gear is fixed on the roller, the roller is rotatably mounted on the adjustment cavity and the fixed plate through two bearings, the fixed plate is fixed below the adjustment cavity, the straight groove and the inclined groove are provided on the roller, the groove depth of one inclined groove decreases from bottom to top, and the groove depth of the end of one straight groove is the same as the deepest groove depth of the inclined groove;

[0019] The connecting shaft is rotatably mounted on the adjusting cavity via a bearing. Second bevel teeth are fixed at both ends of the connecting shaft. The two second bevel teeth are respectively meshed with the first bevel teeth and the third bevel teeth.

[0020] Preferably, the elastic component includes a telescopic rod and a third spring, the telescopic rod and the third spring are fixed on the bottom wall of the shell, the top ends of the telescopic rod and the third spring are fixedly connected to the ball, and the ball is arranged in the straight groove.

[0021] A method for using an electromagnetic cyclic impact test device comprises the following steps:

[0022] S1. When conducting rock impact test, the coil group is powered according to the test requirements. The slider moves along the guide rail under the action of Ampere force, and the impact load is generated by the collision between the impact rod and the incident rod. The incident rod enters the adjustment cavity, so that the stress wave is transmitted along the incident rod to the sample placed on the sample table, and finally transmitted to the transmission rod, so as to carry out the impact stress test operation;

[0023] S2. After the impact test, the residue left by the impact enters the cavity of the adjustment chamber. Then, when a new round of test operation is carried out, the handle is turned to drive the rotating shaft to rotate, so that the rotating shaft drives the cam to rotate, and the cam drives the first torsion spring to twist. At the same time, the cam convex surface disengages from the convex ball, so that the first spring drives the positioning rod upward out of the positioning port, and then the adjustment chamber is moved to make the transmission component follow the movement, so that the ball enters the inclined groove and drives the roller to rotate. The roller drives the first bevel gear and the second bevel gear to transmit, and the connecting shaft drives the second bevel gear and the third bevel gear to transmit, and the rotating rod drives the sample table to flip over, so that the residue on the sample table enters the cavity for collection, and the extended cavity cooperates with the dust removal component to perform dust removal operation. When the ball enters the inclined groove again through the straight groove linear motion, the roller is reversed, and the sample table flips and resets to contact the support plate;

[0024] S3. When the regulating cavity with residues remaining after the test extends out of the housing, the two cavities of the regulating cavity are exchanged. At this time, the torsion of the first torsion spring drives the rotating shaft to rotate and reset, so that the cam convex surface squeezes the positioning rod through the convex ball to insert into the positioning port for positioning, and the cam also squeezes the roller rod to drive the block to move upward, so that the block contacts the main switch, and then a new round of impact test operation is continued.

[0025] Compared with the prior art, the present invention provides an electromagnetic cyclic impact test device and method thereof, which have the following beneficial effects:

[0026] 1. The electromagnetic cyclic impact test device and method thereof, by moving the adjustment cavity to drive the transmission component to move, the ball and the inclined groove cooperate to realize the transmission of the transmission component and the adjustable discharge component, so that the sample table can be flipped and tilted, and then the residue on the surface of the sample table can be dumped into the cavity, and during the dumping process, the dust removal component can be used to perform dust removal operations to maintain a good test environment, thereby achieving the purpose of automatic cleaning and reducing the operation steps and difficulty. Secondly, the residue is collected through the cavity and can be easily cleaned through the side door.

[0027] 2. The electromagnetic cyclic impact test device and method thereof move the position of the adjusting cavity so that the adjusting cavity drives the transmission component to move, and the transmission component and the adjustable discharge component can be transmitted through the cooperation of the inclined slot and the elastic component, so that the adjustable discharge component is tilted and discharged, and when the elastic component enters another inclined slot, the adjustable discharge component is automatically flipped and reset, so as to facilitate the stable placement of the sample, and secondly, by moving the adjusting cavity, the two cavity positions of the adjusting cavity are quickly switched, so that the positions of the two adjustable discharge components can be switched, so as to facilitate the rapid implementation of the next round of impact test, and continuous test operation can be achieved by switching.

[0028] 3. The electromagnetic cyclic impact test device and method thereof, after switching the two cavity positions of the adjustment cavity, drives the rotating shaft and the cam to rotate through the torque of the first torsion spring, so that the cam squeezes the positioning rod to move downward, and the cam squeezes the roller rod at the same time. If the positioning rod is not accurately inserted into the positioning port, the block cannot press the main switch at this time, thereby maintaining the overall power-off operation to avoid accidental touch, and the adjustment cavity switching position separates the test area from the cleaning and loading and unloading areas, thereby preventing test accidents caused by accidental touch.

[0029] 4. The electromagnetic cyclic impact test device and method thereof operate by energizing the coil group to provide driving force for the slider. The slider can move along the guide rail, and the impact rod impacts the incident rod, and cooperates with the transmission rod to perform an impact test on the rock sample. This type of impact test has high impact speed control accuracy and a low charging time interval for the cyclic impact test, and is suitable for high-precision rock cyclic impact tests. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A three-dimensional view of an electromagnetic cyclic impact test device proposed by the present invention;

[0031] Figure 2 A sectional stereoscopic view of an electromagnetic cyclic impact test device proposed by the present invention;

[0032] Figure 3 A three-dimensional view of a dust removal component of an electromagnetic cyclic impact test device proposed by the present invention;

[0033] Figure 4 A three-dimensional view of an adjustable sealing component of an electromagnetic cyclic impact test device proposed by the present invention;

[0034] Figure 5 A three-dimensional view of a cross section of an adjustable sealing component of an electromagnetic cyclic impact test device proposed by the present invention;

[0035] Figure 6 A three-dimensional view of a cross section of an adjustment chamber of an electromagnetic cyclic impact test device proposed by the present invention;

[0036] Figure 7 For the present invention Figure 6 A magnified view of point A;

[0037] Figure 8 For the present invention Figure 6 A magnified view of point B;

[0038] Fig. 9 A view showing the connection between the adjusting chamber and the adjustable discharge assembly of an electromagnetic cyclic impact test device proposed by the present invention;

[0039] Fig.10A view showing the connection between an adjustable discharge assembly and a transmission assembly of an electromagnetic cyclic impact test device proposed by the present invention;

[0040] Fig.11 For the present invention Fig.10 Enlarged view of point C.

[0041] In the figure: 100, electromagnetic test mechanism; 101, frame; 102, electromagnetic test assembly; 1021, coil pad; 1022, guide rail; 1023, slider; 1024, impact rod; 1025, coil assembly; 103, first bearing support; 104, incident rod; 105, transmission rod; 106, first damping piston; 107, second damping piston; 200, test closing mechanism; 201, housing; 202, dust removal assembly; 2021, collection box; 2022, vacuum cleaner; 2023, dust removal head; 203, adjustable sealing assembly; 2031, adjustment chamber; 2032, slide bar; 2033, support plate; 2034, side door; 2035, slide rail; 204, positioning assembly; 2041, shaft; 2042, handle; 2043, cam; 2044, positioning cover; 2045, convex ball; 2046, first spring; 2047, positioning rod; 2048, first bearing member; 2049, first torsion spring; 205, second bearing support; 206, switch start assembly; 2061, horizontal bar; 2062, second spring; 2063, main switch; 2064, stopper; 2065, roller rod; 207, adjustable discharge assembly; 2071, sample table; 2072, rotating rod; 207 3. the third bevel tooth; 2074. the second torsion spring; 2075. the second bearing member; 208. the transmission assembly; 2081. the second bevel tooth; 2082. the connecting shaft; 2083. the fixing plate; 2084. the first bevel tooth; 2085. the roller; 209. the elastic assembly; 2091. the ball bearing; 2092. the third spring; 2093. the telescopic rod; 210. the positioning opening; 211. the straight groove; 212. the oblique groove. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0043] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0044] Reference Figures 1 to 11 , an electromagnetic cyclic impact test device, comprising an electromagnetic test mechanism 100, on which a test sealing mechanism 200 is mounted;

[0045] The electromagnetic test mechanism 100 includes a frame 101, an incident rod 104 and a transmission rod 105. An electromagnetic test assembly 102 is arranged on the frame 101. The electromagnetic test assembly 102 includes a coil pad 1021, which is fixedly mounted on the frame 101. A coil group 1025 is installed above the coil pad 1021. Electricity is supplied through the coil group 1025, so that a driving force can be provided to a slider 1023 through the Ampere force. A slider 1023 is arranged above the coil group 1025. An impact rod 1024 is installed above the slider 1023. The slider 1023 slides on two guide rails 1022. The guide rails 1022 can guide the slider 1023 to maintain the smooth movement of the slider 1023. Both ends of the two guide rails 1022 are fixed on the frame 101. The frame 101 can play a role in stabilizing the support of the device as a whole. Two second damping pistons 107 are installed on the frame 101 near the electromagnetic test assembly 102. , the second damping piston 107 corresponds to the slider 1023, the first damping piston 106 and the second damping piston 107 can absorb the residual stress wave of the transmission rod 105 and the slider 1023, prevent the stress wave from being reflected again to produce errors, and at the same time avoid the collision between the slider 1023 and the frame 101 to damage the equipment. The first damping piston 106 is installed on the side of the frame 101 away from the electromagnetic test assembly 102, and the first bearing platform 103 is also installed on the frame 101. The first bearing platform 103 and the second bearing platform 205 can maintain the stable sliding of the incident rod 104 and the transmission rod 105. The incident rod 104 is arranged in the first bearing platform 103, and the second bearing platforms 205 are installed on both sides of the shell 201. The incident rod 104 passes through one of the second bearing platforms 205 to enter the shell 201, and the transmission rod 105 penetrates into the other second bearing platform 205, and the transmission rod 105 corresponds to the first damping piston 106.

[0046] In some embodiments, the test closure mechanism 200 includes a housing 201, which is fixedly mounted on one side of the frame 101 (eg, Figure 1As shown on the left side, a dust removal component 202 is arranged above the shell 201, and the dust removal component 202 includes a collection box 2021, which is installed above the shell 201. The collection box 2021 is connected to a dust collector 2022, and the dust collector 2022 can perform dust collection operations through a dust removal head 2023, and achieve the purpose of dust collection through the collection box 2021 to maintain a good test environment. The dust collector 2022 is connected to the dust removal head 2023, and the dust removal head 2023 is arranged on one side of the shell 201. An adjustable sealing component 203 is arranged inside the shell 201, and the adjustable sealing component 203 includes an adjustment cavity 2031. Both sides of the adjustment cavity 2031 are open, so that the incident rod 104 and the transmission rod 105 can smoothly contact with the rock sample. The impact test is carried out between the adjusting chamber 2031 and the shell 201, and the adjusting chamber 2031 and the shell 201 can protect the test area. Secondly, a temperature controller can be added to the adjusting chamber 2031 for rock cycle impact tests at different temperatures. The adjusting chamber 2031 is divided into two cavities. A support plate 2033 is fixedly connected to one of the cavities of the adjusting chamber 2031. The bottom of the cavity is an inclined surface. The bottom of the cavity is set as an inclined surface so that the residue can be accumulated at the position of the side door 2034 along the inclined surface, so that the residue can be easily cleaned by opening the side door 2034. The front and rear of the adjusting chamber 2031 are provided with side doors 2034. Slide bars 2032 are fixed on both sides of the adjusting chamber 2031. The slide bars 2032 slide in the slide rails 2035. The slide bars 2032 can pass through the slide rails 20 35 slides smoothly, so that the adjustment chamber 2031 can be adjusted smoothly. The slide rail 2035 is fixed on the side wall of the housing 201. Two adjustable discharge assemblies 207 are arranged in the adjustable sealing assembly 203. Two transmission assemblies 208 are arranged below the adjustable sealing assembly 203. The transmission assembly 208 includes a connecting shaft 2082, a fixed plate 2083 and a roller 2085. The roller 2085 is fixed with a first bevel gear 2084. The roller 2085 is rotatably mounted on the adjustment chamber 2031 and the fixed plate 2083 through two bearings. The fixed plate 2083 is fixed below the adjustment chamber 2031. The straight groove 211 and the inclined groove 212 are arranged on the roller 2085. The groove depth of one of the inclined grooves 212 decreases from bottom to top. The end groove depth of the groove 211 is the same as the deepest groove depth of the inclined groove 212. When the ball 2091 is located at the deepest notch of the straight groove 211, the third spring 2092 can drive the ball 2091 to continue to go deeper into the straight groove 211, and the deep notch can block the ball 2091 to prevent the ball 2091 from moving along the straight groove 211 again, so that the ball 2091 can move smoothly along the inclined groove 212. Secondly, since the groove depth of the inclined groove 212 decreases upward, the third spring 2092 can be deformed to store elastic potential energy, and the ball 2091 cooperates with the inclined groove 212 to realize the rotation of the roller 2085. The connecting shaft 2082 is rotatably installed on the adjusting cavity 2031 through the bearing, and the second bevel teeth 2081 are fixed at both ends of the connecting shaft 2082.The two second bevel teeth 2081 are respectively meshed with the first bevel teeth 2084 and the third bevel teeth 2073, and the second bevel teeth 2081 can be used to transmit power with the first bevel teeth 2084 and the third bevel teeth 2073, so as to realize power transmission, which is convenient for driving the rotation of the connecting shaft 2082 and the rotating rod 2072, and the positioning assembly 204 arranged side by side with the transmission assembly 208. The positioning assembly 204 includes a rotating shaft 2041, and both ends of the rotating shaft 2041 are fixedly connected to a handle 2042, and the handle 2042 is used as The force application point is convenient for controlling the rotation of the rotating shaft 2041. The rotating shaft 2041 is rotatably installed under the adjusting chamber 2031 through two first bearing members 2048. The first bearing member 2048 can assist the rotating shaft 2041 to rotate stably. Three cams 2043 are fixedly connected to the rotating shaft 2041. A first torsion spring 2049 is fixed between the two first bearing members 2048. The torsion force of the first torsion spring 2049 is greater than the elastic force of the first spring 2046 and the second spring 2062, so that the first torsion spring 2049 49 can smoothly drive the rotating shaft 2041 to rotate and reset, so that the cam 2043 can rotate and move by squeezing the convex ball 2045 and the roller rod 2065 through the convex surface, so that the positioning rod 2047 can be inserted into the positioning port 210 to lock the position of the adjustment cavity 2031. The first torsion spring 2049 is sleeved outside the rotating shaft 2041, and the other ends of the two first torsion springs 2049 are respectively fixedly connected to the two cams 2043, wherein the lower parts of the two cams 2043 are provided with convex balls 2045, and the lower parts of the convex balls 2045 are fixedly connected to the two cams 2043. A positioning rod 2047 is connected, and the positioning rod 2047 penetrates the positioning cover 2044. A first spring 2046 is fixedly connected between the bottom wall of the positioning cover 2044 and the convex ball 2045. The first spring 2046 can drive the positioning rod 2047 to escape from the positioning port 210, so as to facilitate the movement of the adjustment cavity. One of the positioning rods 2047 of 2031 is inserted into a positioning port 210, and the positioning cover 2044 is fixed on the adjustment cavity 2031. A switch start component 206 is arranged above the positioning component 204.

[0047] In some embodiments, the transmission assembly 208 passes through the adjustable sealing assembly 203 and is transmitted to the adjustable discharge assembly 207. The adjustable discharge assembly 207 includes a sample table 2071, which is located in the cavity. The sample table 2071 can be used to place the rock sample. One of the sample tables 2071 contacts the top of the support plate 2033. A rotating rod 2072 is fixed to one side of the sample table 2071. The rotating rod 2072 is rotatably installed in the adjustment cavity 2031 through a second bearing member 2075. The rotating rod 2072 can perform smooth rotation through the second bearing member 2075. The rotating rod 2072 is fixed to one end of the second torsion spring 2074. The torsion force of the second torsion spring 2074 can drive the sample table 2071 to flip downward, so that the sample table 2071 contacts the support plate 2033 downward, thereby maintaining the stability of the sample table 2071. The other end of the second torsion spring 2074 is fixed to the second bearing member 2075. The spring 2074 is sleeved outside the rotating rod 2072, and the third bevel gear 2073 is fixed on the rotating rod 2072. The transmission component 208 is provided with two oblique grooves 212 and two straight grooves 211. The two ends of the two straight grooves 211 are connected to the two oblique grooves 212. An elastic component 209 is provided in one of the straight grooves 211. The elastic component 209 includes a telescopic rod 2093 and a third spring 2092. The resetting force of the third spring 2092 can apply a force to the ball 2091, so that The ball 2091 slides stably in the inclined groove 212 and the straight groove 211, and the telescopic rod 2093 can keep the roller stably extended and retracted. The telescopic rod 2093 and the third spring 2092 are fixed on the bottom wall of the shell 201. The top ends of the telescopic rod 2093 and the third spring 2092 are fixedly connected to the ball 2091. The ball 2091 is arranged in the straight groove 211. The elastic component 209 is arranged on the bottom wall of the shell 201. Two positioning holes 210 are opened on the bottom wall of the shell 201.

[0048] In such an embodiment, the transmission component 208 is driven to move by moving the adjustment cavity 2031, so that the ball 2091 cooperates with the inclined groove 212 to realize the rotation of the roller 2085, and the roller 2085 drives the first bevel tooth 2084 and the second bevel tooth 2081 to transmit, so that the connecting shaft 2082 rotates, and the third bevel tooth 2073 is driven by the second bevel tooth 2081 to transmit, so that the rotating rod 2072 drives the sample table 2071 to flip and tilt, and then the residue on the surface of the sample table 2071 can be dumped into the cavity, and in the dumping process, the dust removal operation can be performed in conjunction with the dust removal component 202 to maintain a good test environment, thereby achieving the purpose of automatic cleaning and reducing the operation steps and difficulty. Secondly, the residue is collected through the cavity and can be easily cleaned through the side door 2034.

[0049] Reference Figure 1 , Figures 3 to 6 and Fig.10An electromagnetic cyclic impact test device includes an adjustable sealing component 203, the adjustable sealing component 203 includes an adjusting chamber 2031, the adjusting chamber 2031 is divided into two cavities, a support plate 2033 is fixedly connected to one of the cavities of the adjusting chamber 2031, the bottom of the cavity is inclined, side doors 2034 are provided at the front and rear of the adjusting chamber 2031, and sliding bars 2032 are fixed on both sides of the adjusting chamber 2031, the sliding bars 2032 slide in the sliding rails 2035, and the sliding rails 2035 are fixed on the side walls of the shell 201.

[0050] In some embodiments, the test sealing mechanism 200 includes a shell 201, an adjustable sealing assembly 203 is disposed inside the shell 201, two adjustable discharge assemblies 207 are disposed in the adjustable sealing assembly 203, two transmission assemblies 208 are disposed below the adjustable sealing assembly 203, the transmission assembly 208 penetrates the adjustable sealing assembly 203 and transmits power to the adjustable discharge assembly 207, two inclined grooves 212 and two straight grooves 211 are provided on the transmission assembly 208, both ends of the two straight grooves 211 are connected to the two inclined grooves 212, and one of the straight grooves 211 is provided with an elastic assembly 209.

[0051] In such an embodiment, by moving the position of the adjusting cavity 2031, the adjusting cavity 2031 drives the transmission component 208 to move, and the transmission component 208 and the adjustable discharge component 207 can be transmitted through the cooperation of the inclined groove 212 and the elastic component 209, so that the adjustable discharge component 207 is tilted and discharged, and when the elastic component 209 enters another inclined groove 212, the adjustable discharge component 207 is automatically flipped and reset, so as to facilitate maintaining stable placement of the sample, and secondly, by moving the adjusting cavity 2031, the two cavity positions of the adjusting cavity 2031 are quickly switched, so that the positions of the two adjustable discharge components 207 can be switched, so as to facilitate the rapid implementation of the next round of impact test, and continuous test operations can be achieved through switching.

[0052] Reference Figure 6 , Figures 8 to 10An electromagnetic cyclic impact test device includes a test sealing mechanism 200, the test sealing mechanism 200 includes a shell 201, the shell 201 is fixedly mounted on one side (such as the left side) of a frame 101, a dust removal component 202 is arranged above the shell 201, an adjustable sealing component 203 is arranged inside the shell 201, two adjustable discharge components 207 are arranged in the adjustable sealing component 203, two transmission components 208 are arranged below the adjustable sealing component 203, and The positioning assembly 204 is arranged side by side with the transmission assembly 208. A switch activation assembly 206 is arranged above the positioning assembly 204. The switch activation assembly 206 includes a horizontal bar 2061. The two ends of the horizontal bar 2061 are fixed between the two positioning covers 2044. A roller rod 2065 is penetrated in the middle of the horizontal bar 2061. The roller rod 2065 is squeezed by the cam 2043 to move, so that the rolling property of the roller rod 2065 reduces the friction resistance, so that the roller rod 2065 can push the block 2064 upward to move. The block 2064 contacts the main switch 2063 to keep the device powered on. The lower part of the roller rod 2065 overlaps the middle cam 2043. The top of the roller rod 2065 is fixed with a block 2064. A second spring 2062 is fixed between the block 2064 and the horizontal bar 2061. The block 2064 is reset by the second spring 2062 to keep the block 2064 away from the main switch 2063, so that the device can be powered off. The upper part of the block 2064 contacts the main switch 2063. The main switch 2063 is installed below the adjusting chamber 2031. The transmission component 208 penetrates the adjustable sealing component 203 and transmits to the adjustable discharge component 207. The transmission component 208 is provided with two inclined grooves 212 and two straight grooves 211. The two ends of the two straight grooves 211 are connected with the two inclined grooves 212. An elastic component 209 is provided in one of the straight grooves 211. The elastic component 209 is arranged on the bottom wall of the outer shell 201. Two positioning holes 210 are provided on the bottom wall of the outer shell 201.

[0053] In such an embodiment, after switching the two cavity positions of the adjustment chamber 2031, the torque of the first torsion spring 2049 drives the rotating shaft 2041 and the cam 2043 to rotate, so that the cam 2043 squeezes the positioning rod 2047 to move downward, and at the same time, the cam 2043 squeezes the roller rod 2065. If the positioning rod 2047 is not accurately inserted into the positioning port 210, the block 2064 cannot press the main switch 2063 at this time, thereby maintaining the overall power-off operation to avoid accidental touch, and the adjustment chamber 2031 switches position to separate the test area from the cleaning and loading and unloading areas, thereby preventing accidental touches from causing test accidents.

[0054] Continue to refer to Figures 1 to 11 , a method for using an electromagnetic cyclic impact test device, comprising the following steps:

[0055] S1. When conducting a rock impact test, the coil group 1025 is powered according to the test requirements. The slider 1023 moves along the guide rail 1022 under the action of the Ampere force, and collides with the incident rod 104 through the impact rod 1024 to generate an impact load. The incident rod 104 enters the adjustment cavity 2031, so that the stress wave is transmitted along the incident rod 104 to the sample placed on the sample table 2071, and finally transmitted to the transmission rod 105, so as to perform an impact stress test operation;

[0056] S2. After the impact test, the residue left by the impact enters the cavity of the adjustment chamber 2031. Then, when a new round of test operation is carried out, the handle 2042 is turned to drive the rotating shaft 2041 to rotate, so that the rotating shaft 2041 drives the cam 2043 to rotate, and the cam 2043 drives the first torsion spring 2049 to twist. At the same time, the convex surface of the cam 2043 disengages from the convex ball 2045, so that the first spring 2046 drives the positioning rod 2047 to disengage from the positioning port 210 upward, and then the adjustment chamber 2031 is moved, so that the transmission assembly 208 moves with it, so that the ball 2091 enters the inclined groove 212 and drives The roller 2085 rotates, and the roller 2085 drives the first bevel gear 2084 and the second bevel gear 2081 to transmit, and the connecting shaft 2082 drives the second bevel gear 2081 and the third bevel gear 2073 to transmit, and the rotating rod 2072 drives the sample table 2071 to flip, so that the residue on the sample table 2071 enters the cavity for collection, and the extended cavity cooperates with the dust removal component 202 to perform dust removal. When the ball 2091 passes through the straight groove 211 and moves linearly into the inclined groove 212 again, the roller 2085 is reversed, and at this time, the sample table 2071 flips and resets to contact the support plate 2033;

[0057] S3. After the adjustment chamber 2031 with the residue remaining after the test extends out of the housing 201, the two cavities of the adjustment chamber 2031 are exchanged. At this time, the torque of the first torsion spring 2049 drives the rotating shaft 2041 to rotate and reset, so that the convex surface of the cam 2043 squeezes the positioning rod 2047 through the convex ball 2045 to insert into the positioning port 210 for positioning, and the cam 2043 also squeezes the roller rod 2065 to drive the stopper 2064 to move upward, so that the stopper 2064 contacts the main switch 2063, and then a new round of impact test operation is continued.

[0058] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An electromagnetic cyclic impact test device, characterized in that: It comprises an electromagnetic testing mechanism (100), wherein a testing sealing mechanism (200) is mounted on the electromagnetic testing mechanism (100); The electromagnetic test mechanism (100) comprises a frame (101), an incident rod (104) and a transmission rod (105); an electromagnetic test assembly (102) is arranged on the frame (101); The test sealing mechanism (200) comprises a housing (201), wherein the housing (201) is fixedly mounted on one side of a frame (101), a dust removal assembly (202) is arranged above the housing (201), an adjustable sealing assembly (203) is arranged inside the housing (201), two adjustable discharge assemblies (207) are arranged in the adjustable sealing assembly (203), two transmission assemblies (208) and a positioning assembly (204) arranged side by side with the transmission assembly (208) are arranged below the adjustable sealing assembly (203), and a switch start assembly (206) is arranged above the positioning assembly (204); The transmission component (208) passes through the adjustable sealing component (203) and transmits power to the adjustable discharging component (207). The transmission component (208) is provided with two inclined grooves (212) and two straight grooves (211). Both ends of the two straight grooves (211) are connected to the two inclined grooves (212). An elastic component (209) is provided in one of the straight grooves (211). The elastic component (209) is provided on the bottom wall of the outer shell (201). Two positioning openings (210) are provided on the bottom wall of the outer shell (201).

2. The electromagnetic cyclic impact test device according to claim 1, characterized in that: The electromagnetic test assembly (102) comprises a coil pad (1021), the coil pad (1021) is fixedly mounted on the frame (101), a coil group (1025) is mounted above the coil pad (1021), a slider (1023) is provided above the coil group (1025), an impact rod (1024) is mounted above the slider (1023), the slider (1023) slides on two guide rails (1022), and both ends of the two guide rails (1022) are fixed on the frame (101); Two second damping pistons (107) are installed on the side of the frame (101) close to the electromagnetic test assembly (102), and the second damping pistons (107) correspond to the slider (1023). A first damping piston (106) is installed on the side of the frame (101) away from the electromagnetic test assembly (102). A first bearing support platform (103) is also installed on the frame (101), and the incident rod (104) is arranged in the first bearing support platform (103). Second bearing support platforms (205) are installed on both sides of the housing (201), and the incident rod (104) passes through one of the second bearing support platforms (205) to enter the housing (201), and the transmission rod (105) passes through the other second bearing support platform (205), and the transmission rod (105) corresponds to the first damping piston (106).

3. The electromagnetic cyclic impact test device according to claim 2, characterized in that: The dust removal component (202) comprises a collection box (2021), the collection box (2021) is installed above the outer shell (201), the collection box (2021) is connected to a dust collector (2022), the dust collector (2022) is connected to a dust removal head (2023), and the dust removal head (2023) is arranged on one side of the outer shell (201).

4. The electromagnetic cyclic impact test device according to claim 3, characterized in that: The adjustable sealing component (203) comprises an adjusting cavity (2031), wherein the adjusting cavity (2031) is divided into two cavities, a support plate (2033) is fixedly connected to one of the cavities of the adjusting cavity (2031), the bottom of the cavity is an inclined surface, side doors (2034) are provided at the front and rear of the adjusting cavity (2031), and sliding bars (2032) are fixed on both sides of the adjusting cavity (2031), wherein the sliding bars (2032) slide in sliding rails (2035), and the sliding rails (2035) are fixed on the side walls of the housing (201).

5. The electromagnetic cyclic impact test device according to claim 4, characterized in that: The positioning assembly (204) comprises a rotating shaft (2041), both ends of the rotating shaft (2041) are fixedly connected to handles (2042), the rotating shaft (2041) is rotatably mounted below the adjustment chamber (2031) via two first bearing members (2048), three cams (2043) are fixedly connected to the rotating shaft (2041), a first torsion spring (2049) is fixed between the two first bearing members (2048), the first torsion spring (2049) is sleeved outside the rotating shaft (2041), and the other ends of the two first torsion springs (2049) are respectively fixedly connected to the two cams (2043); A convex ball (2045) is provided below each of the two cams (2043), a positioning rod (2047) is fixedly connected below the convex ball (2045), the positioning rod (2047) penetrates a positioning cover (2044), a first spring (2046) is fixedly connected between the bottom wall of the positioning cover (2044) and the convex ball (2045), one of the positioning rods (2047) is inserted into a positioning opening (210), and the positioning cover (2044) is fixed on the adjustment cavity (2031).

6. The electromagnetic cyclic impact test device according to claim 5, characterized in that: The switch start component (206) comprises a horizontal bar (2061), the two ends of the horizontal bar (2061) are fixed between two positioning covers (2044), a roller rod (2065) is passed through the middle of the horizontal bar (2061), the lower part of the roller rod (2065) overlaps the middle cam (2043), a stopper (2064) is fixed at the top of the roller rod (2065), a second spring (2062) is fixed between the stopper (2064) and the horizontal bar (2061), the upper part of the stopper (2064) contacts the main switch (2063), and the main switch (2063) is installed below the adjustment chamber (2031).

7. The electromagnetic cyclic impact test device according to claim 6, characterized in that: The adjustable discharge assembly (207) comprises a sample table (2071), the sample table (2071) is located in the cavity, one of the sample tables (2071) is in contact with the top of the support plate (2033), a rotating rod (2072) is fixed on one side of the sample table (2071), the rotating rod (2072) is rotatably mounted in the adjustment cavity (2031) via a second bearing member (2075), one end of a second torsion spring (2074) is fixed to the rotating rod (2072), the other end of the second torsion spring (2074) is fixed to the second bearing member (2075), the second torsion spring (2074) is sleeved outside the rotating rod (2072), and a third bevel tooth (2073) is fixed to the rotating rod (2072).

8. The electromagnetic cyclic impact test device according to claim 7, characterized in that: The transmission assembly (208) comprises a connecting shaft (2082), a fixed plate (2083) and a rotating roller (2085); a first bevel tooth (2084) is fixed on the rotating roller (2085); the rotating roller (2085) is rotatably mounted on the adjusting cavity (2031) and the fixed plate (2083) via two bearings; the fixed plate (2083) is fixed below the adjusting cavity (2031); the straight groove (211) and the inclined groove (212) are formed on the rotating roller (2085); the groove depth of one inclined groove (212) decreases from bottom to top; and the groove depth at the end of one straight groove (211) is the same as the deepest groove depth of the inclined groove (212); The connecting shaft (2082) is rotatably mounted on the adjustment cavity (2031) via a bearing, and second bevel teeth (2081) are fixed to both ends of the connecting shaft (2082), and the two second bevel teeth (2081) are respectively meshed with the first bevel teeth (2084) and the third bevel teeth (2073).

9. The electromagnetic cyclic impact test device according to claim 8, characterized in that: The elastic component (209) comprises a telescopic rod (2093) and a third spring (2092); the telescopic rod (2093) and the third spring (2092) are fixed on the bottom wall of the housing (201); the top ends of the telescopic rod (2093) and the third spring (2092) are fixedly connected to a ball (2091); and the ball (2091) is disposed in the straight groove (211).

10. The method for using the electromagnetic cyclic impact test device according to claim 9, characterized in that: The following steps are involved: S1. When performing a rock impact test, the coil group (1025) is powered according to the test requirements, the slider (1023) moves along the guide rail (1022) under the action of the Ampere force, and collides with the incident rod (104) through the impact rod (1024) to generate an impact load. The incident rod (104) enters the adjustment cavity (2031), so that the stress wave is transmitted along the incident rod (104) to the sample placed on the sample table (2071), and finally transmitted to the transmission rod (105), thereby performing an impact stress test operation; S2. After the impact test, the residue left by the impact enters the cavity of the adjustment chamber (2031). Then, when a new round of test operation is carried out, the handle (2042) is turned to drive the rotating shaft (2041) to rotate, so that the rotating shaft (2041) drives the cam (2043) to rotate, and the cam (2043) drives the first torsion spring (2049) to twist. At the same time, the convex surface of the cam (2043) is separated from the convex ball (2045), so that the first spring (2046) drives the positioning rod (2047) to move upward and out of the positioning port (210), and then the adjustment chamber (2031) is moved, so that the transmission assembly (208) moves accordingly, so that the ball (2091) enters the inclined groove (212) and drives the rotating shaft (2043). The roller (2085) rotates, the rotating roller (2085) drives the first bevel gear (2084) and the second bevel gear (2081) to transmit, the connecting shaft (2082) drives the second bevel gear (2081) and the third bevel gear (2073) to transmit, and the rotating rod (2072) drives the sample table (2071) to flip, so that the residue on the sample table (2071) enters the cavity for collection, and the extended cavity cooperates with the dust removal component (202) to perform dust removal operation, when the ball (2091) passes through the straight groove (211) and moves linearly to enter the inclined groove (212) again, the rotating roller (2085) is reversed, and at this time the sample table (2071) flips and resets to contact the support plate (2033); S3. After the test, when the regulating cavity (2031) with the residue remaining therein extends out of the housing (201), the two cavities of the regulating cavity (2031) are exchanged. At this time, the torque of the first torsion spring (2049) drives the rotating shaft (2041) to rotate and reset, so that the convex surface of the cam (2043) squeezes the positioning rod (2047) through the convex ball (2045) to insert into the positioning port (210) for positioning, and the cam (2043) also squeezes the roller rod (2065) to drive the stopper (2064) to move upward, so that the stopper (2064) contacts the main switch (2063), and then a new round of impact test operation is continued.

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