Low-temperature impact-resistant experimental device for offshore wind power planet carrier forge piece

Abstract

The invention relates to the technical field of forge piece detection, in particular to an offshore wind power planet carrier forge piece low-temperature impact resistance experiment device which comprises an impact machine, a feeding mechanism is installed on the impact machine, a refrigeration mechanism is installed on the feeding mechanism, and a clamping mechanism is installed on the feeding mechanism. Through cooperative installation of the feeding mechanism and the impact machine, automatic feeding of parts needing to be detected is facilitated, under cooperation of the conveying mechanism, the parts are placed in place, through cooperation of the refrigeration mechanism, filling of liquid nitrogen into the feeding mechanism is facilitated, and it is guaranteed that the parts are tested in a low-temperature state; the control mechanism is controlled to be opened and closed, on-off control over the refrigeration mechanism by the control mechanism is facilitated, shielding and protection over the outer side of the impact machine are facilitated through the protection mechanism, and stable clamping of fed parts by the clamping mechanism is achieved through work of the protection mechanism and driving of the clamping mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of forging detection, and specifically relates to a low-temperature impact resistance test device for an offshore wind power planetary gear forging. Background Art

[0002] As an important part of renewable energy, during the operation of offshore wind turbines, the planetary gear forging, as a key structure connecting various components of the gearbox, its performance directly affects the transmission efficiency and stability of the gearbox. By improving the low-temperature impact stability of the planetary gear forging, it can ensure that the wind power equipment can still operate normally under harsh climatic conditions, reduce the failure rate and maintenance cost, during the low-temperature impact test of the forging.

[0003] The current impact test device has a single structure. When performing an impact test on a forging each time, it is necessary to manually place the forging on the impact device, which is time-consuming and laborious, and has a low safety factor. If operated improperly, after the pendulum falls, it is easy to induce safety accidents. And when detecting a low-temperature forging, it is necessary to inject liquid nitrogen outside the forging to cool the part, and then place the part on the impact device through a fixture, resulting in cumbersome operation. And if carelessly, after the liquid nitrogen splashes on the staff, it is easy to cause frostbite to the skin. At the same time, there is a lack of a clamping component when placing the forging, resulting in poor stability after the forging is placed. When the pendulum impacts the part, it is easy to cause the part to loosen, affecting the detection effect. After the experiment is completed, it is not convenient to take out the impacted forging or debris well, reducing the overall efficiency. Summary of the Invention

[0004] In view of the problems in the prior art, the present invention provides a low-temperature impact resistance test device for an offshore wind power planetary gear forging.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a low-temperature impact resistance test device for an offshore wind power planetary gear forging, including an impact machine, on which a feeding mechanism is installed, a refrigeration mechanism is installed on the feeding mechanism, and a clamping mechanism is installed on the feeding mechanism.

[0006] Specifically, the feeding mechanism includes a placing block, the placing block is installed at the midline of the bottom of the impact machine, an installation block is installed on one side of the impact machine, a placing groove is provided on the installation block, one end of the installation block is internally connected with a driving cylinder, and a pushing block is installed on the output shaft of the driving cylinder, and the pushing block is slidably connected to the inside of the placing groove.

[0007] Specifically, the placing groove is in an "L" shape, one end of the placing groove extends to the outside of the installation block, the top of the placing groove extends to the outside of the top of the installation block, a cover plate is slidably connected to the top of the installation block, and a push handle is installed on the cover plate.

[0008] Specifically, a conveying mechanism is installed on the mounting block. The conveying mechanism includes a conveying plate. One end inside of the mounting block is slidably connected with the conveying plate. The top of the conveying plate extends to the inside of the placement groove. A movable groove is provided at the midline inside the mounting block. A fixed block is slidably connected inside the movable groove. The top of the fixed block is fixedly connected with the conveying plate. A compression spring is installed on the fixed block. One end of the compression spring is connected with the inner side of one end of the movable groove. The pushing block has a "T" shape structure. The bottom of the pushing block is slidably connected with the inside of the movable groove.

[0009] Specifically, multiple rows of equally spaced balls are rotatably connected to the top of the conveying plate. The width of the conveying plate is equal to that of the placement groove.

[0010] Specifically, the refrigeration mechanism includes a collecting groove. The collecting groove is provided at the inner side of the bottom of the mounting block. A plurality of guide grooves are provided inside the mounting block. The collecting groove is communicated with the inside of the placement groove through the guide grooves. A feed pipe is installed on the outer side of one end of the mounting block. The feed pipe extends to the inside of the collecting groove.

[0011] Specifically, a control mechanism is installed on one end of the mounting block. The control mechanism includes a fixing plate. The fixing plate is installed on one end of the mounting block. The feed pipe penetrates through the center of the inner side of the fixing plate. A baffle is installed inside the fixing plate. The baffle is slidably connected with the fixing plate and the feed pipe through a plurality of return springs. A through hole is provided on the baffle. The through hole is located at the bottom side of the feed pipe. Pressure rods are respectively installed at both ends of the top of the baffle. The two pressure rods extend to the outside of the fixing plate. The pressure rods are slidably connected with the fixing plate. The tops of the two pressure rods are connected through a pressure block. The top of the pressure block abuts against the bottom of the cover plate.

[0012] Specifically, a pressure wheel is rotatably connected to the bottom of one end of the cover plate. The pressure block has a trapezoidal structure. The top of the pressure block has an arc-shaped structure.

[0013] Specifically, a protection mechanism is installed on the impact machine. The protection mechanism includes a protection cover. The protection cover is installed on one side of the bottom of the impact machine. The protection cover has an inverted trapezoidal structure. A through groove is provided at the bottom side of one side of the protection cover. The mounting block is located outside the through groove. The placement block is located inside the bottom of the protection cover.

[0014] Specifically, two clamping plates are installed on one side of the protection cover. A sliding plate is slidably connected between the two clamping plates. The clamping plates have a "concave" shape structure. The sliding plate is located outside the through groove. Two control cylinders are installed on one side of the protection cover. The output shafts of the two control cylinders are connected with both sides of the top of the sliding plate.

[0015] Specifically, symmetric collecting boxes are slidably connected to the inner sides of both ends of the protective cover. One ends of the two collecting boxes respectively extend to the inside of the placing block, and the other ends of the two collecting boxes respectively extend to the outside of the protective cover. Handles are respectively installed on the outer sides of the two collecting boxes.

[0016] Specifically, the clamping mechanism includes clamping blocks. Two clamping blocks are slidably connected to the inside of one end of the placing block. The two clamping blocks are in a "7"-shaped structure. One ends of the tops of the two clamping blocks extend to the outside of the placing block. The bottoms of the two clamping blocks are connected by a connecting plate. The connecting plate is slidably connected to the inner side of the bottom of the placing block through the clamping blocks. A plurality of compression springs are connected between one side of the connecting plate and the inside of the placing block. One end of the connecting plate extends to the outside of the placing block. A roller shaft is rotatably connected to one end of the connecting plate. A driving block is installed at the bottom of one side of the sliding plate. The driving block is in a triangular structure.

[0017] Specifically, a slider is slidably connected to the inside of one end of the connecting plate. One end of the slider extends to the outside of the connecting plate. A buffer spring is installed between one side of the slider and the inside of the connecting plate. The roller shaft is rotatably connected to the outside of the slider.

[0018] The beneficial effects of the present invention are as follows: (1) For the low-temperature impact resistance test device for offshore wind power planetary gear forging of the present invention, through the cooperative installation of the feeding mechanism and the impact machine, it is beneficial to automatically feed the parts to be tested, with convenient operation and high safety factor. With the cooperation of the conveying mechanism, the parts are placed in place, which is beneficial to subsequent testing.

[0019] (2) For the low-temperature impact resistance test device for offshore wind power planetary gear forging of the present invention, through the cooperation of the refrigeration mechanism, it is beneficial to inject liquid nitrogen into the feeding mechanism to reduce the temperature of the parts and ensure the testing of the parts in a low-temperature state.

[0020] (3) For the low-temperature impact resistance test device for offshore wind power planetary gear forging of the present invention, through the drive of the feeding mechanism, the control mechanism is controlled to open and close, which is beneficial for the control mechanism to control the on-off of the refrigeration mechanism and realize the refrigeration of the parts by liquid nitrogen.

[0021] (4) For the low-temperature impact resistance test device for offshore wind power planetary gear forging of the present invention, through the installation of the protection mechanism, it is beneficial to shield and protect the outside of the impact machine, prevent the parts fragments from flying out during the impact test, which is likely to cause harm. At the same time, it is convenient to take out and clean the tested parts and debris through the protection mechanism.

[0022] (5) For the low-temperature impact resistance test device for offshore wind power planetary gear forging of the present invention, through the operation of the protection mechanism, it is beneficial to drive the clamping mechanism and realize the stable clamping of the parts after feeding by the clamping mechanism, which is convenient for more stable testing and reduces the error caused by the loosening of the parts. Brief Description of the Drawings

[0023] The present invention will be further described below in conjunction with the drawings and embodiments.

[0024] Figure 1 It is a schematic diagram of the overall structure provided by the present invention; Figure 2 It is a schematic diagram of the connection structure between the placement block and the protective cover of the present invention; Figure 3 It is a schematic diagram of the connection structure between the push block and the mounting block of the present invention; Figure 4 It is a schematic diagram of the connection structure between the baffle plate and the fixed plate of the present invention; Figure 5 It is a schematic diagram of the connection structure between the pressure rod and the baffle plate of the present invention; Figure 6 It is a schematic diagram of the connection structure between the compression spring and the transfer plate of the present invention; Figure 7 It is a schematic diagram of the connection structure between the pressure wheel and the cover plate of the present invention; Figure 8 It is a schematic diagram of the connection structure between the collection box and the placement block of the present invention; Figure 9 It is a schematic diagram of the connection structure between the clamping block and the placement block of the present invention; Figure 10 It is a schematic diagram of the connection structure between the clamping block and the connecting plate of the present invention; Figure 11 It is a schematic diagram of the connection structure between the roller shaft and the slider of the present invention; Figure 12 It is a schematic diagram of the connection structure between the driving block and the sliding plate of the present invention.

[0025] In the figure: 1. Impact machine; 2. Feeding mechanism; 201. Mounting block; 202. Driving cylinder; 203. Placement block; 204. Placement groove; 205. Cover plate; 206. Pusher; 207. Push block; 3. Conveying mechanism; 301. Transfer plate; 302. Ball; 303. Movable groove; 304. Fixed block; 305. Compression spring; 4. Refrigeration mechanism; 401. Feed pipe; 402. Collection tank; 403. Guide groove; 5. Control mechanism; 501. Fixed plate; 502. Pressure rod; 503. Pressure block; 504. Baffle plate; 505. Through hole; 506. Return spring; 507. Pressure wheel; 6. Protection mechanism; 601. Protective cover; 602. Through slot; 603. Sliding plate; 604. Control cylinder; 605. Collection box; 606. Card board; 607. Handle; 7. Clamping mechanism; 701. Clamping block; 702. Connecting plate; 703. Roller shaft; 704. Extrusion spring; 705. Buffer spring; 706. Slider; 707. Driving block. Detailed Description of the Invention

[0026] In order to make the technical means, creative features, achieved objectives and effects realized by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0027] As Figure 1 , Figure 3 and Figure 10 shown, a low-temperature impact resistance test device for an offshore wind power planet carrier forging of the present invention includes an impact machine 1, a feeding mechanism 2 is installed on the impact machine 1, a refrigeration mechanism 4 is installed on the feeding mechanism 2, and a clamping mechanism 7 is installed on the feeding mechanism 2.

[0028] Specifically, as Figure 1 , Figure 2 and Figure 3 shown, the feeding mechanism 2 includes a placement block 203. The placement block 203 is installed at the midline of the bottom of the impact machine 1. An installation block 201 is installed on one side of the impact machine 1. A placement groove 204 is provided on the installation block 201. One end of the installation block 201 is internally connected to a driving cylinder 202. A push block 207 is installed on the output shaft of the driving cylinder 202. The push block 207 is slidably connected to the inside of the placement groove 204. Through the installation of the placement block 203, it is beneficial to place the parts to be tested. The impact machine 1 impacts the parts with a certain force to realize the impact resistance test of the parts. Through the installation of the installation block 201, it is beneficial to store the parts to be tested. Through the operation of the driving cylinder 202, the push block 207 pushes the parts inside the placement groove 204. After the parts are pushed into the placement block 203 for placement, the driving cylinder 202 contracts to keep the push block 207 in a reset state, facilitating the subsequent pushing of the next part. The operation is convenient and the safety factor is high.

[0029] Specifically, as Figure 3 and Figure 7 shown, the placement groove 204 is an "L" - shaped structure. One end of the placement groove 204 extends to the outside of the installation block 201, and the top of the placement groove 204 extends to the outside of the top of the installation block 201. A cover plate 205 is slidably connected to the top of the installation block 201. A push handle 206 is installed on the cover plate 205, which is beneficial for putting the parts into the placement groove 204 and pushing them out through one end of the placement groove 204, facilitating the feeding work. Through the installation of the cover plate 205, it is beneficial to drive the cover plate 205 through the push handle 206 to realize the opening and closing control of the cover plate 205 for the placement groove 204, playing a role of shielding and protection.

[0030] Specifically, as Figure 3 and Figure 6As shown, a conveying mechanism 3 is installed on the mounting block 201. The conveying mechanism 3 includes a conveying plate 301. One end inside of the mounting block 201 is slidably connected with the conveying plate 301. The top of the conveying plate 301 extends to the inside of the placing groove 204. A movable groove 303 is provided at the midline inside of the mounting block 201. A fixing block 304 is slidably connected inside the movable groove 303. The top of the fixing block 304 is fixedly connected with the conveying plate 301. A compression spring 305 is installed on the fixing block 304. One end of the compression spring 305 is connected with the inner side of one end of the movable groove 303. The pushing block 207 has a "T" shape. The bottom of the pushing block 207 is slidably connected with the inside of the movable groove 303. Through the installation of the fixing block 304 and the conveying plate 301, with the cooperation of the compression spring 305, the conveying plate 301 is abutted and received inside the mounting block 201, which is convenient for picking up parts during feeding. After the pushing block 207 pushes the part to the top of the conveying plate 301, the bottom of the pushing block 207 drives the conveying plate 301, so that the conveying plate 301 gets rid of the elastic force of the compression spring 305 and slides along with the part, realizing that the conveying plate 301 smoothly conveys the part to the placing block 203. When the pushing block 207 resets, the conveying plate 301 has no external force to abut against. Under the abutment of the compression spring 305, it also slides back to its original position, while the part remains stationary under the action of gravity. After the conveying plate 301 resets, the part is stably placed on the placing block 203.

[0031] Specifically, as Figure 3 shown, a plurality of rows of equally spaced balls 302 are rotatably connected to the top of the conveying plate 301. The conveying plate 301 has the same width as the placing groove 204. Through the installation of the balls 302, it is beneficial for the smooth sliding between the top of the conveying plate 301 and the bottom of the part, so that the bottom of the part will not be worn when the conveying plate 301 resets, and the friction force is reduced, making the reset fast and labor-saving. At the same time, it is convenient to convey parts of different sizes.

[0032] Specifically, as Figure 1 and Figure 3 shown, the refrigeration mechanism 4 includes a collecting tank 402. The collecting tank 402 is provided at the inner side of the bottom of the mounting block 201. A plurality of guide grooves 403 are provided inside the mounting block 201. The collecting tank 402 is communicated with the inner side of the placing groove 204 through the guide grooves 403. A feed pipe 401 is installed on the outer side of one end of the mounting block 201. The feed pipe 401 extends to the inside of the collecting tank 402. Through the connection of the feed pipe 401, it is beneficial to connect with an external liquid nitrogen tank. By injecting liquid nitrogen into the inside of the feed pipe 401, the liquid nitrogen enters the inside of the collecting tank 402. Subsequently, through the cooperation of the plurality of guide grooves 403, the liquid nitrogen enters the inside of the placing groove 204 to refrigerate the side wall of the part, making the part in a low-temperature state, which is convenient for conducting impact experiments under a low-temperature state.

[0033] Specifically, as Figure 3 , Figure 4 and Figure 5 shown, one end of the mounting block 201 is provided with a control mechanism 5. The control mechanism 5 includes a fixing plate 501. One end of the mounting block 201 is provided with a fixing plate 501. The feed pipe 401 penetrates through the center of the inner side of the fixing plate 501. A baffle 504 is installed inside the fixing plate 501. The baffle 504 is slidably connected to the fixing plate 501 and the feed pipe 401 through a plurality of return springs 506. A through hole 505 is provided on the baffle 504. The through hole 505 is located at the bottom side of the feed pipe 401. Two pressure rods 502 are respectively installed at both ends of the top of the baffle 504. The two pressure rods 502 extend to the outside of the fixing plate 501. The pressure rods 502 are slidably connected to the fixing plate 501. The tops of the two pressure rods 502 are connected by a pressure block 503. The top of the pressure block 503 abuts against the bottom of the cover plate 205. Through the installation of the fixing plate 501, it is beneficial to connect the feed pipe 401. Through the installation of the baffle 504, in cooperation with the through hole 505, the baffle 504 realizes the on-off control of the feed pipe 401. When the cover plate 205 is opened for feeding, the baffle 504 abuts against and slides down the pressure block 503. The pressure block 503 drives the two pressure rods 502 to drive the baffle 504. The baffle 504 slides down against the elastic force of the return spring 506, which is beneficial to block the feed pipe 401 and prevent liquid nitrogen from being transported. After feeding, when the cover plate 205 is closed, the cover plate 205 is separated from the pressure block 503. The pressure rods 502 have no external force to abut against. The baffle 504 rises under the pull of the return spring 506, so that the through hole 505 is aligned with the feed pipe 401, realizing the conduction of the feed pipe 401 to transport liquid nitrogen, which is beneficial to refrigerate and cool the parts.

[0034] Specifically, as Figure 4 and Figure 7 shown, a pressure wheel 507 is rotatably connected to the bottom of one end of the cover plate 205. The pressure block 503 is of a trapezoidal structure, and the top of the pressure block 503 is of an arc structure. Through the installation of the pressure wheel 507, it is beneficial for the cover plate 205 to smoothly abut against the pressure block 503 when it is opened, so that the pressure block 503 can be abutted and slide down, realizing the driving control of the baffle 504. At the same time, the top of the pressure block 503 slides smoothly with the bottom of the cover plate 205, reducing wear.

[0035] Specifically, as Figure 1 and Figure 2As shown, a protection mechanism 6 is installed on the impact machine 1. The protection mechanism 6 includes a protective cover 601. The protective cover 601 is installed at one side of the bottom of the impact machine 1. The protective cover 601 is in an inverted trapezoidal structure. A through groove 602 is provided at the bottom of one side of the protective cover 601. The mounting block 201 is located outside the through groove 602, and the placement block 203 is located inside the bottom of the protective cover 601. Through the installation of the protective cover 601, it is beneficial to shield and protect the outside of the bottom of the impact machine 1. When performing a part impact test, it can prevent parts or debris from flying out and causing accidental injuries, improving the safety factor. Through the opening of the through groove 602, it is beneficial for parts to be loaded in.

[0036] Specifically, as Figure 1 and Figure 2 shown, two clamping plates 606 are installed on one side of the protective cover 601. A sliding plate 603 is slidably connected between the two clamping plates 606. The clamping plates 606 are in a "concave" shape structure. The sliding plate 603 is located outside the through groove 602. Two control cylinders 604 are installed on one side of the protective cover 601. The output shafts of the two control cylinders 604 are connected to both sides of the top of the sliding plate 603. Through the installation of the two clamping plates 606, it is beneficial to guide the sliding of the sliding plate 603 and prevent it from slipping and falling. Through the installation of the two control cylinders 604, the sliding control of the sliding plate 603 is realized, which is beneficial to the opening and closing control of the through groove 602 and plays a role in safety protection.

[0037] Specifically, as Figure 1 、 Figure 2 and Figure 8 shown, symmetric collecting boxes 605 are respectively slidably connected to the inner sides of both ends of the protective cover 601. One ends of the two collecting boxes 605 respectively extend to the inside of the placement block 203, and the other ends of the two collecting boxes 605 respectively extend to the outside of the protective cover 601. Handles 607 are respectively installed on the outer sides of the two collecting boxes 605. Through the sliding connection between the collecting boxes 605 and the protective cover 601, it is beneficial to collect and store the impacted parts and debris. By pulling the handle 607, the collecting box 605 can be pulled out to facilitate the recycling and cleaning of the parts and debris.

[0038] Specifically, as Figure 8 、 Figure 9 、 Figure 10 and Figure 12As shown, the clamping mechanism 7 includes a clamping block 701, and two clamping blocks 701 are slidably connected inside one end of the placement block 203, and the two clamping blocks 701 are in a "7" shape. One end of the top of the two clamping blocks 701 extends to the outside of the placement block 203, and the bottoms of the two clamping blocks 701 are connected by a connecting plate 702. The connecting plate 702 is slidably connected to the inner side of the bottom of the placement block 203 through the clamping block 701, and a plurality of extrusion springs 704 are connected between one side of the connecting plate 702 and the inside of the placement block 203. One end of the connecting plate 702 extends to the outside of the placement block 203, and one end of the connecting plate 702 is rotatably connected to a roller shaft 703. A driving block 707 is installed at the bottom of one side of the slide plate 603. 707 is a triangular structure, which is convenient for clamping parts on the placement block 203 through the sliding connection between the clamp block 701 and the inside of the placement block 203. When there is no external force resistance, the connection plate 702 drives the two clamp blocks 701 to be in a reset state through the resistance of the resistance squeezing spring 704, which is convenient for placing parts on the placement block 203. When the slide plate 603 slides down and closes, the driving block 707 on the slide plate 603 resists the roller shaft 703, so that the roller shaft 703 drives the connection plate 702 to slide away from the elastic force of the squeezing spring 704, thereby making the two clamp blocks 701 synchronously clamp the parts stably, which is convenient for subsequent impact testing and reduces the error caused by loose parts.

[0039] Specifically, Figure 9 and Figure 11 As shown, a slider 706 is slidably connected to the inner side of one end of the connecting plate 702, and one end of the slider 706 extends to the outer side of the connecting plate 702. A buffer spring 705 is installed between one side of the slider 706 and the inside of the connecting plate 702. The roller shaft 703 is rotatably connected to the outer side of the slider 706. Through the installation of the slider 706, with the cooperation of the buffer spring 705, the slider 706 and the inner side of one end of the connecting plate 702 have telescopic sliding, so that after the clamping block 701 clamps the parts stably, the slider 706 can still get rid of the elastic force of the buffer spring 705 and slide with the connecting plate 702, so that the slide plate 603 can be tightly closed after sliding down, and it is beneficial to clamp parts of different sizes stably.

[0040] When the present invention is in use, first, by driving and controlling the two control cylinders 604, the two control cylinders 604 drive and lift the sliding plate 603, so that the through groove 602 on one side of the protective cover 601 is opened, facilitating the feeding of forgings. Through the installation of the protective cover 601, it is beneficial to shield and protect the outside of the bottom of the impact machine 1. When performing an impact test on a part, it can prevent the part or debris from flying out and causing accidental injury, improving the safety factor. Through the installation of the two clamping plates 606, it is beneficial to guide the sliding of the sliding plate 603 and prevent it from slipping and falling. Through the installation of the placing block 203, it is beneficial to place the part to be tested. The impact machine 1 impacts the part with a certain force to realize the impact resistance test of the part. Through the installation of the mounting block 201, it is beneficial to store the part to be tested. Through the operation of the driving cylinder 202, the push block 207 pushes out the part inside the placing groove 204. After the part is pushed into the placing block 203 for placement, the driving cylinder 202 contracts, so that the push block 207 returns to its reset state, facilitating the subsequent pushing of the next part. The operation is convenient and the safety factor is high. It is beneficial to place the part into the placing groove 204 and push it out from one end of the placing groove 204, facilitating the feeding work. Through the installation of the cover plate 205, it is beneficial to drive the cover plate 205 through the push handle 206 to realize the opening and closing control of the cover plate 205 for the placing groove 204, playing a role of shielding and protection. Through the installation of the fixing block 304 and the transfer plate 301, with the cooperation of the compression spring 305, the transfer plate 301 is abutted and received inside the mounting block 201, facilitating the picking up of the part during feeding. After the push block 207 pushes the part to the top of the transfer plate 301, the bottom of the push block 207 drives the transfer plate 301, so that the transfer plate 301 gets rid of the elastic force of the compression spring 305 and slides along with the part, realizing that the transfer plate 301 stably conveys the part to the placing block 203. When the push block 207 resets, the transfer plate 301 has no external force to abut against, and also slides back under the abutment of the compression spring 305, while the part remains stationary under the action of gravity. After the transfer plate 301 resets, the part is stably placed on the placing block 203. Through the installation of the ball 302, it is beneficial to the smooth sliding between the top of the transfer plate 301 and the bottom of the part, facilitating that the transfer plate 301 will not wear the bottom of the part when resetting, and reducing the friction force, making the reset fast and labor-saving. At the same time, it is convenient to convey parts of different sizes. Through the connection of the feed pipe 401, it is beneficial to connect with an external liquid nitrogen tank. By injecting liquid nitrogen into the feed pipe 401, the liquid nitrogen enters the collecting tank 402, and then through the cooperation of multiple guide grooves 403, the liquid nitrogen enters the placing groove 204 to cool the side wall of the part, making the part in a low-temperature state, facilitating the impact experiment under the low-temperature state. Through the installation of the fixing plate 501, it is beneficial to connect the feed pipe 401. Through the installation of the baffle plate 504, with the cooperation of the through hole 505, the baffle plate 504 realizes the on-off control of the feed pipe 401. When the cover plate 205 is opened for feeding, the baffle plate 504 slides down against the pressing block 503.The briquette 503 drives two pressure rods 502 to drive the baffle 504. The baffle 504 slides down against the elastic force of the return spring 506, which is beneficial to block the feed pipe 401 and prevent liquid nitrogen from being transported. After feeding, the cover plate 205 is closed. The cover plate 205 is separated from the briquette 503, and the pressure rod 502 has no external force to resist. The baffle 504 rises under the pull of the return spring 506, aligning the through hole 505 with the feed pipe 401 to achieve the conduction and transportation of liquid nitrogen through the feed pipe 401, which is beneficial to refrigerate and cool the parts. By installing the pressure wheel 507, it is beneficial to smoothly resist the briquette 503 when the cover plate 205 is opened, enabling the briquette 503 to be resisted and slide down to achieve the drive control of the baffle 504. At the same time, the top of the briquette 503 slides smoothly with the bottom of the cover plate 205, reducing wear. After the forging is loaded, the slide plate 603 slides down to close the through groove 602. Through the sliding connection between the clamping block 701 and the inside of the placement block 203, it is beneficial to clamp the parts on the placement block 203. When there is no external force to resist, through the resistance of the extrusion spring 704, the connecting plate 702 drives the two clamping blocks 701 to be in the reset state, facilitating the placement of the parts and the placement block 203. When the slide plate 603 slides down and closes, the driving block 707 on the slide plate 603 resists the roller shaft 703, causing the roller shaft 703 to drive the connecting plate 702 to slide against the elastic force of the extrusion spring 704, and then the two clamping blocks 701 synchronously clamp the parts stably, facilitating subsequent impact tests and reducing errors caused by part loosening. By installing the slider 706, with the cooperation of the buffer spring 705, the slider 706 has a telescopic slide with the inner side of one end of the connecting plate 702. After the clamping block 701 clamps the parts stably, the slider 706 can still slide with the connecting plate 702 against the elastic force of the buffer spring 705, enabling the slide plate 603 to close tightly after sliding down and facilitating the stable clamping of parts of different sizes. Through the sliding connection between the collection box 605 and the protective cover 601, it is beneficial to collect and store the impacted parts and debris. By pulling the handle 607, the collection box 605 is pulled out to facilitate the recycling and cleaning of the parts and debris.

[0041] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0042] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An experimental device for low-temperature impact resistance of an off-shore wind power planet carrier forging, characterized in that, It includes a punching machine (1), on which a feeding mechanism (2) is installed, on which a refrigeration mechanism (4) is installed, and on which a clamping mechanism (7) is installed; The feeding mechanism (2) includes a placing block (203). The placing block (203) is installed at the midline of the bottom of the punching machine (1). An installation block (201) is installed on one side of the punching machine (1). A placing groove (204) is provided on the installation block (201). One end of the installation block (201) is internally connected with a driving cylinder (202). The output shaft of the driving cylinder (202) is installed with a pushing block (207), and the pushing block (207) is slidably connected to the inside of the placing groove (204); The refrigeration mechanism (4) includes a collecting groove (402). The collecting groove (402) is provided on the inner side of the bottom of the installation block (201). A plurality of guide grooves (403) are provided inside the installation block (201). The collecting groove (402) is communicated with the inner side of the placing groove (204) through the guide grooves (403). A feed pipe (401) is installed on the outer side of one end of the installation block (201), and the feed pipe (401) extends into the collecting groove (402).

2. The low-temperature impact resistance test device for an offshore wind power planet carrier forging according to claim 1, wherein: The placing groove (204) is of an "L" - shaped structure. One end of the placing groove (204) extends to the outside of the installation block (201), and the top of the placing groove (204) extends to the outside of the top of the installation block (201). A cover plate (205) is slidably connected to the top of the installation block (201), and a pushing hand (206) is installed on the cover plate (205).

3. An experimental device for low-temperature impact resistance of an off-shore wind power planet carrier forging according to claim 1, characterized in that: A conveying mechanism (3) is installed on the installation block (201). The conveying mechanism (3) includes a conveying plate (301). The conveying plate (301) is slidably connected to the inner side of one end of the installation block (201). The top of the conveying plate (301) extends into the inner side of the placing groove (204). An activity groove (303) is provided at the midline of the inner side of the installation block (201). A fixing block (304) is slidably connected to the inside of the activity groove (303). The top of the fixing block (304) is fixedly connected to the conveying plate (301). A compression spring (305) is installed on the fixing block (304), and one end of the compression spring (305) is connected to the inner side of one end of the activity groove (303). The pushing block (207) is of a "T" - shaped structure, and the bottom of the pushing block (207) is slidably connected to the inside of the activity groove (303).

4. An experimental device for low-temperature impact resistance of an offshore wind power planet carrier forging according to claim 3, characterized in that: A plurality of rows of equally - spaced balls (302) are rotatably connected to the top of the conveying plate (301), and the conveying plate (301) has the same width as the placing groove (204).

5. An impact resistance experiment device at low temperature for an offshore wind power planet carrier forging according to claim 2, characterized in that: One end of the mounting block (201) is provided with a control mechanism (5). The control mechanism (5) includes a fixing plate (501). One end of the mounting block (201) is provided with a fixing plate (501). The feed pipe (401) passes through the center of the inner side of the fixing plate (501). A baffle (504) is installed inside the fixing plate (501). The baffle (504) is slidably connected to the fixing plate (501) and the feed pipe (401) through a plurality of return springs (506). A through hole (505) is provided on the baffle (504). The through hole (505) is located at the bottom side of the feed pipe (401). At both ends of the top of the baffle (504), pressure rods (502) are respectively installed. The two pressure rods (502) extend to the outside of the fixing plate (501). The pressure rods (502) are slidably connected to the fixing plate (501). The tops of the two pressure rods (502) are connected by a pressure block (503). The top of the pressure block (503) abuts against the bottom of the cover plate (205).

6. An experimental device for low-temperature impact resistance of an offshore wind power planet carrier forging according to claim 5, characterized in that: One end of the bottom of the cover plate (205) is rotatably connected with a pressure wheel (507). The pressure block (503) is of a trapezoidal structure. The top of the pressure block (503) is of an arc-shaped structure.

7. An impact resistance test device at low temperature for an offshore wind power planet carrier forging according to claim 1, characterized in that: A protective mechanism (6) is installed on the impact machine (1). The protective mechanism (6) includes a protective cover (601). One side of the bottom of the impact machine (1) is provided with a protective cover (601). The protective cover (601) is of an inverted trapezoidal structure. A through groove (602) is provided at the bottom of one side of the protective cover (601). The mounting block (201) is located outside the through groove (602). The placing block (203) is located inside the bottom of the protective cover (601).

8. An experimental device for low-temperature impact resistance of an offshore wind power planet carrier forging according to claim 7, characterized in that: Two clamping plates (606) are installed on one side of the protective cover (601). A sliding plate (603) is slidably connected between the two clamping plates (606). The clamping plates (606) are of a "concave" shape structure. The sliding plate (603) is located outside the through groove (602). Two control cylinders (604) are installed on one side of the protective cover (601). The output shafts of the two control cylinders (604) are connected to both sides of the top of the sliding plate (603).

9. An impact resistance test device at low temperature for an offshore wind power planet carrier forging according to claim 8, characterized in that: Symmetrical collecting boxes (605) are respectively slidably connected to the inner sides of both ends of the protective cover (601). One ends of the two collecting boxes (605) respectively extend to the inside of the placing block (203). The other ends of the two collecting boxes (605) respectively extend to the outside of the protective cover (601). Handles (607) are respectively installed on the outer sides of the two collecting boxes (605).

10. An experimental device for low-temperature impact resistance of an offshore wind power planet carrier forging according to claim 9, characterized in that: The clamping mechanism (7) includes clamping blocks (701). Two clamping blocks (701) are slidably connected inside one end of the placing block (203). The two clamping blocks (701) are in a "7"-shaped structure. One end of the tops of the two clamping blocks (701) extends to the outside of the placing block (203). The bottoms of the two clamping blocks (701) are connected by a connecting plate (702). The connecting plate (702) is slidably connected to the inner side of the bottom of the placing block (203) through the clamping blocks (701). A plurality of compression springs (704) are connected between one side of the connecting plate (702) and the inside of the placing block (203). One end of the connecting plate (702) extends to the outside of the placing block (203). A roller shaft (703) is rotatably connected to one end of the connecting plate (702). A driving block (707) is installed at the bottom of one side of the sliding plate (603). The driving block (707) is in a triangular structure. A slider (706) is slidably connected to the inner side of one end of the connecting plate (702). One end of the slider (706) extends to the outside of the connecting plate (702). A buffer spring (705) is installed between one side of the slider (706) and the inside of the connecting plate (702). The roller shaft (703) is rotatably connected to the outside of the slider (706).

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