A low-temperature impact resistance test device for offshore wind power planetary carrier forgings

Abstract

The present invention relates to the technical field of forging detection, and specifically to a low-temperature impact resistance test device for offshore wind power planetary frame forgings, comprising an impact machine, a feeding mechanism installed on the impact machine, a refrigeration mechanism installed on the feeding mechanism, and a clamping mechanism installed on the feeding mechanism; the coordinated installation of the feeding mechanism and the impact machine facilitates automatic feeding of parts to be tested, and with the cooperation of the conveying mechanism, the parts are placed in place; with the cooperation of the refrigeration mechanism, liquid nitrogen is added to the interior of the feeding mechanism, ensuring that the parts are tested under low-temperature conditions; the feeding mechanism is driven to open and close the control mechanism, which facilitates the on-off control of the refrigeration mechanism by the control mechanism; the protective mechanism facilitates shielding and protection of the outer side of the impact machine; and the operation of the protective mechanism facilitates driving the clamping mechanism, so that the clamping mechanism can stably clamp the loaded parts.

Description

Technical Field

[0001] The invention relates to the technical field of forging detection, in particular to a low-temperature impact resistance testing device for offshore wind power planetary frame forgings. Background Art

[0002] Offshore wind power is an important part of renewable energy. During the operation of offshore wind turbines, the planetary carrier forgings are the key structure connecting the various components of the gearbox. The performance of the planetary carrier forgings directly affects the transmission efficiency and stability of the gearbox. By improving the low-temperature impact stability of the planetary carrier forgings, it can ensure that wind power equipment can still operate normally under harsh climatic conditions, reduce failure rates and maintenance costs, during the low-temperature impact test of the forgings.

[0003] The current impact test device has a simple structure. Every time a forging is impact tested, the forging needs to be placed manually on the impact equipment. The back and forth operation is time-consuming and labor-intensive, and the safety factor is low. If the operation is improper, the pendulum will fall, which may easily cause a safety accident. In addition, when testing low-temperature forgings, liquid nitrogen needs to be injected into the outside of the forging to cool the part, and then the part is placed on the impact equipment through a fixture, which makes the operation cumbersome. If the worker is not careful, liquid nitrogen may splash onto the worker, which may easily cause frostbite to the skin. At the same time, the forging lacks a clamping component when it is placed, resulting in poor stability of the forging after placement. When the pendulum impacts the part, it is easy to cause the part to loosen, affecting the test effect. After the experiment is completed, it is not convenient to remove the forging or debris after the impact, which reduces the overall efficiency. Summary of the Invention

[0004] In response to the problems in the prior art, the present invention provides a low-temperature impact resistance test device for offshore wind power planetary carrier forgings.

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

[0006] Specifically, the feeding mechanism includes a placement block, a placement block is installed at the center line of the bottom of the impact machine, a mounting block is installed on one side of the impact machine, a placement groove is provided on the mounting block, a driving cylinder is internally connected to one end of the mounting block, a push block is installed on the output shaft of the driving cylinder, and the push block is slidably connected to the inside of the placement groove.

[0007] Specifically, the placement groove is an "L"-shaped structure, one end of the placement groove extends to the outside of the mounting block, the top of the placement groove extends to the outside of the top of the mounting block, the top of the mounting block is slidably connected to a cover plate, and a push handle is installed on the cover plate.

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

[0009] Specifically, a plurality of rows of equally spaced balls are connected in a rolling manner to the top of the transmission plate, and the width of the transmission plate is equal to that of the placement groove.

[0010] Specifically, the refrigeration mechanism includes a collecting groove, a collecting groove is provided on 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 connected with the inner side of the placement groove through the guide groove, and a feed pipe is installed on the outer side of one end of the mounting block, and the feed pipe extends into the inside of the collecting groove.

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

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

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

[0014] Specifically, two card plates are installed on one side of the protective cover, and a slide plate is slidably connected between the two card plates. The card plates are of a "concave" shape, and the slide plate is located outside the through groove. Two control cylinders are installed on one side of the protective cover, and the output shafts of the two control cylinders are connected to the two sides of the top of the slide plate.

[0015] Specifically, symmetrical collection boxes are slidably connected to the inner sides of both ends of the protective cover, one end of the two collection boxes extends to the inner side of the placement block, and the other end of the two collection boxes extends to the outside of the protective cover, and handles are installed on the outside of the two collection boxes.

[0016] Specifically, the clamping mechanism includes a clamping block, and two clamping blocks are slidably connected to the inside of one end of the placement block. The two clamping blocks are in a "7" shape. The top ends of the two clamping blocks extend to the outside of the placement block, and 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 placement block through the clamping block. A plurality of extrusion springs are connected between one side of the connecting plate and the inside of the placement block. One end of the connecting plate extends to the outside of the placement block, and one end of the connecting plate is rotatably connected to a roller shaft. A driving block is installed at the bottom of one side of the slide plate, and the driving block is a triangular structure.

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

[0018] The beneficial effects of the present invention are:

[0019] (1) The low-temperature impact resistance test device for offshore wind power planetary frame forgings described in the present invention is convenient for automatically loading parts to be tested through the coordinated installation of a feeding mechanism and an impact machine. It has convenient operation and a high safety factor. With the cooperation of the conveying mechanism, the parts are placed in place, which is convenient for subsequent testing.

[0020] (2) The low-temperature impact resistance test device for offshore wind power planetary frame forgings described in the present invention facilitates the filling of liquid nitrogen into the feeding mechanism through the cooperation of the refrigeration mechanism, thereby reducing the temperature of the parts and ensuring that the parts are tested under low-temperature conditions.

[0021] (3) The low-temperature impact resistance test device for offshore wind power planetary frame forgings described in the present invention realizes the opening and closing of the control mechanism through the drive of the feeding mechanism, 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.

[0022] (4) The low-temperature impact resistance test device for offshore wind power planetary frame forgings described in the present invention is conducive to shielding and protecting the outside of the impact machine through the installation of a protective mechanism, preventing part fragments from flying out during the impact test, which may easily cause harm. At the same time, the protective mechanism facilitates the removal and cleaning of tested parts and debris.

[0023] (5) The low-temperature impact resistance test device for offshore wind power planetary frame forgings described in the present invention is conducive to driving the clamping mechanism through the operation of the protection mechanism, so that the clamping mechanism can stably clamp the parts after loading, facilitate more stable testing, and reduce errors caused by loose parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below with reference to the accompanying drawings and examples.

[0025] Figure 1 A schematic diagram of the overall structure provided by the present invention;

[0026] Figure 2 This is a schematic diagram of the connection structure between the placement block and the protective cover of the present invention;

[0027] Figure 3 This is a schematic diagram of the connection structure between the push block and the mounting block of the present invention;

[0028] Figure 4 Schematic diagram of the connection structure between the baffle and the fixing plate of the present invention;

[0029] Figure 5 Schematic diagram of the connection structure between the pressure rod and the baffle of the present invention;

[0030] Figure 6 A schematic diagram of the connection structure between the compression spring and the transmission plate of the present invention;

[0031] Figure 7 Schematic diagram of the connection structure between the pressure wheel and the cover plate of the present invention;

[0032] Figure 8 This is a schematic diagram of the connection structure between the collection box and the placement block of the present invention;

[0033] Figure 9 This is a schematic diagram of the connection structure between the clamping block and the placement block of the present invention;

[0034] Figure 10 This is a schematic diagram of the connection structure between the clamping block and the connecting plate of the present invention;

[0035] Figure 11 Schematic diagram of the connection structure between the roller and the slider of the present invention;

[0036] Figure 12 It is a schematic diagram of the connection structure between the driving block and the slide plate of the present invention.

[0037] Figure: 1, impact machine; 2, feeding mechanism; 201, mounting block; 202, driving cylinder; 203, placement block; 204, placement slot; 205, cover plate; 206, push handle; 207, push block; 3, conveying mechanism; 301, conveying plate; 302, ball bearing; 303, movable slot; 304, fixed block; 305, compression spring; 4, cooling mechanism; 401, feeding pipe; 402, collecting slot; 403, guide slot; 5, control mechanism; 501, fixed plate; 50 2. Pressure rod; 503. Pressure block; 504. Baffle; 505. Through hole; 506. Return spring; 507. Pressure wheel; 6. Protection mechanism; 601. Protection cover; 602. Through slot; 603. Slide plate; 604. Control cylinder; 605. Collection box; 606. Card plate; 607. Handle; 7. Clamping mechanism; 701. Clamping block; 702. Connecting plate; 703. Roller; 704. Extrusion spring; 705. Buffer spring; 706. Slider; 707. Drive block. DETAILED DESCRIPTION

[0038] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0039] like Figure 1 、 Figure 3 and Figure 10 As shown, the low-temperature impact resistance test device for offshore wind power planetary carrier forgings described in 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.

[0040] Specifically, such as Figure 1 、 Figure 2 and Figure 3 As shown, the feeding mechanism 2 includes a placement block 203, a placement block 203 is installed at the bottom center line of the impact machine 1, and a mounting block 201 is installed on one side of the impact machine 1. A placement slot 204 is provided on the mounting block 201, and a driving cylinder 202 is internally connected to one end of the mounting block 201. A push block 207 is installed on the output shaft of the driving cylinder 202, and the push block 207 is slidably connected to the inside of the placement slot 204. The installation of the placement block 203 is conducive to placing the parts to be tested, and the impact machine 1 hits the parts with a certain force to achieve the impact resistance test of the parts. The installation of the mounting block 201 is conducive to storing the parts to be tested. The work of the driving cylinder 202 enables the push block 207 to push the parts inside the placement slot 204. After the parts are pushed into the placement block 203 and placed, the driving cylinder 202 contracts, so that the push block 207 remains in the reset state, which is convenient for the subsequent pushing of the next part. The operation is convenient and the safety factor is high.

[0041] Specifically, such as Figure 3 and Figure 7 As shown, the placement slot 204 is an "L"-shaped structure, one end of the placement slot 204 extends to the outside of the mounting block 201, and the top of the placement slot 204 extends to the outside of the top of the mounting block 201. The top of the mounting block 201 is slidably connected to a cover plate 205, and a pusher 206 is installed on the cover plate 205, which is conducive to placing parts into the placement slot 204 and pushing them out through one end of the placement slot 204, which is convenient for loading. Through the installation of the cover plate 205, it is convenient to drive the cover plate 205 through the pusher 206, so as to realize the opening and closing control of the placement slot 204 by the cover plate 205, thereby playing a role of shielding and protection.

[0042] Specifically, such as Figure 3 and Figure 6 As shown, a conveying mechanism 3 is installed on the mounting block 201, and the conveying mechanism 3 includes a conveying plate 301, and the inner side of one end of the mounting block 201 is slidably connected to the conveying plate 301, and the top of the conveying plate 301 extends to the inner side of the placement groove 204, and a movable groove 303 is provided at the inner midline of the mounting block 201. The movable groove 303 is internally slidably connected to the fixed block 304, and the top of the fixed block 304 is fixedly connected to the conveying plate 301. A compression spring 305 is installed on the fixed block 304, and one end of the compression spring 305 is connected to the inner side of one end of the movable groove 303. The pushing block 207 is a "T"-shaped structure, and the bottom of the pushing block 207 is slidably connected to the inner side of the movable groove 303, and is connected to the conveying plate 301 through the fixed block 304. The installation, with the cooperation of the compression spring 305, realizes that the transmission plate 301 is resisted and accommodated inside the installation block 201, which is convenient for receiving parts during loading. After the push block 207 pushes the parts to the top of the transmission plate 301, the bottom of the push block 207 drives the transmission plate 301, so that the transmission plate 301 breaks away from the elastic force of the compression spring 305 and slides with the parts, so that the transmission plate 301 can smoothly transport the parts to the placement block 203. When the push block 207 is reset, the transmission plate 301 has no external force resistance and also slides back under the resistance of the compression spring 305, while the parts remain motionless under the action of gravity. After the transmission plate 301 is reset, the parts are stably placed on the placement block 203.

[0043] Specifically, such as Figure 3As shown, the top of the conveying plate 301 is connected in a rolling manner with multiple rows of equally spaced balls 302. The width of the conveying plate 301 is equal to that of the placement groove 204. The installation of the balls 302 facilitates smooth sliding between the top of the conveying plate 301 and the bottom of the part, so that the conveying plate 301 will not wear the bottom of the part when it is reset, and reduces friction, making the reset quick and labor-saving, and facilitating the transmission of parts of different sizes.

[0044] Specifically, such as Figure 1 and Figure 3 As shown, the refrigeration mechanism 4 includes a collecting groove 402, a collecting groove 402 is provided on the inner side of the bottom of the mounting block 201, and a plurality of guide grooves 403 are provided inside the mounting block 201. The collecting groove 402 is connected to the inner side of the placement groove 204 through the guide groove 403. A feed pipe 401 is installed on the outer side of one end of the mounting block 201, and the feed pipe 401 extends to the inside of the collecting groove 402. Through the connection of the feed pipe 401, it is convenient to connect with an external liquid nitrogen tank. By injecting liquid nitrogen into the feed pipe 401, the liquid nitrogen enters the inside of the collecting groove 402, and then through the cooperation of the plurality of guide grooves 403, the liquid nitrogen enters the inside of the placement groove 204 to cool the side walls of the parts, so that the parts are in a low temperature state, which is convenient for impact experiments under low temperature conditions.

[0045] Specifically, such as Figure 3 、 Figure 4 and Figure 5As shown, a control mechanism 5 is installed at one end of the mounting block 201, and the control mechanism 5 includes a fixed plate 501. A fixed plate 501 is installed at one end of the mounting block 201, and the feed pipe 401 passes through the inner center of the fixed plate 501. A baffle 504 is installed inside the fixed plate 501, and the baffle 504 is slidably connected to the fixed plate 501 and the feed pipe 401 through a plurality of return springs 506. A through hole 505 is provided on the baffle 504, and the through hole 505 is located on the bottom side of the feed pipe 401. Pressure rods 502 are respectively installed at both ends of the top of the baffle 504, and the two pressure rods 502 extend to the outside of the fixed plate 501. The pressure rods 502 are slidably connected to the fixed plate 501, and the tops of the two pressure rods 502 are connected by a pressure block 503. The top of the pressure block 503 conflicts with the bottom of the cover plate 205. Through the installation of the fixed plate 501, The baffle 504 is pulled upward by the return spring 506 to align the through hole 505 with the feed pipe 401, so that the feed pipe 401 is connected and the liquid nitrogen cannot be transported.

[0046] Specifically, such as Figure 4 and Figure 7 As shown, the bottom of one end of the cover 205 is rotatably connected to a pressure wheel 507, the pressure block 503 is a trapezoidal structure, and the top of the pressure block 503 is an arc-shaped structure. Through the installation of the pressure wheel 507, the cover 205 can smoothly resist the pressure block 503 when it is opened, so that the pressure block 503 can be resisted and slide down, thereby realizing the drive control of the baffle 504. At the same time, the top of the pressure block 503 slides smoothly with the bottom of the cover 205, reducing wear.

[0047] Specifically, such as Figure 1 and Figure 2As shown, the impact machine 1 is equipped with a protective mechanism 6, and the protective mechanism 6 includes a protective cover 601. The protective cover 601 is installed on one side of the bottom of the impact machine 1. The protective cover 601 is an inverted trapezoidal structure. A through slot 602 is provided at the bottom of one side of the protective cover 601. The mounting block 201 is located outside the through slot 602, and the placement block 203 is located inside the bottom of the protective cover 601. The installation of the protective cover 601 is beneficial for shielding the outer side of the bottom of the impact machine 1, and prevents parts or debris from flying out and causing accidental injury during the impact test of the parts, thereby improving the safety factor. The opening of the through slot 602 facilitates the entry of parts when loading.

[0048] Specifically, such as Figure 1 and Figure 2 As shown, two card plates 606 are installed on one side of the protective cover 601, and a slide plate 603 is slidably connected between the two card plates 606. The card plate 606 is a "concave" shaped structure, and the slide plate 603 is located on the outside of the through slot 602. Two control cylinders 604 are installed on one side of the protective cover 601, and the output shafts of the two control cylinders 604 are connected to the two sides of the top of the slide plate 603. The installation of the two card plates 606 is conducive to guiding the slide plate 603 when sliding, and it will not slip off. The installation of the two control cylinders 604 can realize the sliding control of the slide plate 603, which is conducive to the opening and closing control of the through slot 602, and plays a safety protection role.

[0049] Specifically, such as Figure 1 、 Figure 2 and Figure 8 As shown, symmetrical collection boxes 605 are slidably connected to the inner sides of both ends of the protective cover 601, one end of the two collection boxes 605 extends to the inner side of the placement block 203, and the other ends of the two collection boxes 605 extend to the outside of the protective cover 601, and handles 607 are installed on the outside of the two collection boxes 605. The sliding connection between the collection boxes 605 and the protective cover 601 facilitates the collection and storage of parts and debris after impact. By pulling the handle 607, the collection box 605 can be pulled out, which is convenient for recycling and cleaning of parts and debris.

[0050] Specifically, such 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 to the inside of one end of the placement block 203. The two clamping blocks 701 are in a "7"-shaped structure. 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. 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 603. 707 is a triangular structure, which is connected to the placing block 203 by sliding with the clamping block 701, so as to facilitate the clamping of the parts on the placing block 203. When there is no external force, the connecting plate 702 drives the two clamping blocks 701 to be in a reset state through the interference of the interference extrusion spring 704, so as to facilitate the placement of the parts and the placing block 203. When the slide plate 603 slides down and closes, the driving block 707 on the slide plate 603 contacts the roller shaft 703, so that the roller shaft 703 drives the connecting plate 702 to get rid of the elastic force of the extrusion spring 704 and slide, thereby making the two clamping blocks 701 clamp the parts synchronously and stably, facilitating subsequent impact testing and reducing errors caused by loose parts.

[0051] Specifically, such as 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, and 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.

[0052] When the present invention is in use, first, the two control cylinders 604 are driven and controlled to drive the two control cylinders 604 to lift the slide plate 603, so that the through slot 602 on one side of the protective cover 601 is opened, which is convenient for loading forgings. The installation of the protective cover 601 is conducive to shielding the outer side of the bottom of the impact machine 1, and prevents parts or debris from flying out and causing accidental injuries when the impact test is performed on the parts, thereby improving the safety factor. The installation of the two clamping plates 606 is conducive to guiding the slide plate 603 when it slides, and it will not slip off and fall. The installation of the placement block 203 is conducive to placing the parts that need to be tested, and the impact machine 1 hits the parts with a certain force to achieve the impact resistance test of the parts. The installation of the mounting block 201 is conducive to the parts that need to be tested. The tested parts are stored, and the push block 207 is used to push the parts inside the placement groove 204 by driving the cylinder 202. After the parts are pushed into the placement block 203 and placed, the drive cylinder 202 is retracted to keep the push block 207 in the reset state, which is convenient for the subsequent pushing of the next part. The operation is convenient and the safety factor is high. It is conducive to placing the parts inside the placement groove 204 and pushing them out through one end of the placement groove 204, which is convenient for loading. The installation of the cover plate 205 is conducive to driving the cover plate 205 through the push handle 206, so that the cover plate 205 can control the opening and closing of the placement groove 204, which plays a role of shielding and protection. The installation of the fixed block 304 and the conveying plate 301, with the cooperation of the compression spring 305, the conveying plate 30 1 is resisted and stored inside the mounting block 201, which is convenient for receiving parts during loading. After the push block 207 pushes the part to the top of the conveying plate 301, the bottom of the push block 207 drives the conveying plate 301, so that the conveying plate 301 can get rid of the elastic force of the compression spring 305 and slide along with the part, so that the conveying plate 301 can smoothly transport the part to the placement block 203. When the push block 207 is reset, the conveying plate 301 has no external force to resist and also slides back under the resistance of the compression spring 305, while the part remains motionless under the action of gravity. After the conveying plate 301 is reset, the part is stably placed on the placement block 203. The installation of the ball 302 facilitates the smooth sliding of 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 is reset. And it reduces friction, making it quick and labor-saving when resetting, and convenient for conveying parts of different sizes. Through the connection of the feed pipe 401, it is convenient to connect with the external liquid nitrogen tank. By injecting liquid nitrogen into the feed pipe 401, the liquid nitrogen enters the collection tank 402, and then, through the cooperation of multiple guide grooves 403, the liquid nitrogen enters the placement tank 204 to cool the side walls of the parts, so that the parts are in a low-temperature state, which is convenient for impact tests under low-temperature conditions. The installation of the fixed plate 501 is convenient for connecting the feed pipe 401. Through the installation of the baffle 504, with the cooperation of the through hole 505, the baffle 504 can realize the on-off control of the feed pipe 401. When the cover plate 205 is opened to load the material, the baffle 504 slides down against the pressing block 503.The pressing block 503 drives the two pressing rods 502 to drive the baffle 504. The baffle 504 gets rid of the elastic force of the return spring 506 and slides down, which is conducive to blocking the feed pipe 401 and preventing the delivery of liquid nitrogen. After loading, the cover plate 205 is closed, the cover plate 205 is separated from the pressing block 503, and the pressing rod 502 has no external force to resist. 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, so that the feed pipe 401 is connected to deliver liquid nitrogen, which is conducive to cooling the parts. The installation is conducive to the smooth resistance of the pressure block 503 when the cover 205 is opened, so that the pressure block 503 can be resisted and slide down, realizing the drive control of the baffle 504. At the same time, the top of the pressure block 503 and the bottom of the cover 205 slide smoothly, reducing wear. After the forging is completed, the slide plate 603 slides down to close the through slot 602, and the sliding connection between the clamping block 701 and the inside of the placement block 203 is conducive to clamping the parts on the placement block 203. When there is no external force resistance, the connection is made by squeezing the resistance of the spring 704. The plate 702 drives the two clamping blocks 701 to be in the reset state, which is convenient for placing the parts on the placement block 203. When the slide plate 603 slides down and closes, the driving block 707 on the slide plate 603 contacts the roller shaft 703, so that the roller shaft 703 drives the connecting plate 702 to get rid of the elastic force of the extrusion spring 704 and slide, thereby making the two clamping blocks 701 synchronously clamp the parts stably, which is convenient for subsequent impact testing and reduces the error caused by loose parts. By installing the slider 706, under the cooperation of the buffer spring 705, the slider 706 and the connecting plate The inner side of one end of the connecting plate 702 has a telescopic sliding function. After the clamping block 701 stabilizes the parts, the slider 706 can still break free from the elastic force of the buffer spring 705 and slide with the connecting plate 702, so that the slide plate 603 can be closed tightly after sliding down, and it is conducive to stably clamping parts of different sizes. The collection box 605 is slidably connected to the protective cover 601, which facilitates the collection and storage of parts and debris after impact. By pulling the handle 607, the collection box 605 can be withdrawn, making it easy to recover and clean the parts and debris.

[0053] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0054] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A low-temperature impact resistance test device for offshore wind power planetary carrier forgings, characterized in that: It comprises an impact machine (1), a feeding mechanism (2) is installed on the impact machine (1), a cooling mechanism (4) is installed on the feeding mechanism (2), and a clamping mechanism (7) is installed on the feeding mechanism (2); The feeding mechanism (2) includes a placement block (203), a placement block (203) is installed at the center line of the bottom of the impact machine (1), a mounting block (201) is installed on one side of the impact machine (1), a placement groove (204) is provided on the mounting block (201), one end of the mounting block (201) is internally connected to a driving cylinder (202), an output shaft of the driving cylinder (202) is installed with a push block (207), and the push block (207) is internally connected to the placement groove (204) in a sliding manner; The refrigeration mechanism (4) comprises a collecting groove (402), the collecting groove (402) is provided on 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 groove (402) is communicated with the inner side of the placement 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), and the feed pipe (401) extends into the interior of the collecting groove (402).

2. The low-temperature impact resistance test device for offshore wind turbine planetary carrier forgings according to claim 1 is characterized in that: The placement groove (204) is an "L"-shaped structure, one end of the placement groove (204) extends to the outside of the mounting block (201), the top of the placement groove (204) extends to the outside of the top of the mounting block (201), the top of the mounting block (201) is slidably connected to a cover plate (205), and a push handle (206) is installed on the cover plate (205).

3. The low-temperature impact resistance test device for offshore wind turbine planetary carrier forgings according to claim 1 is characterized in that: A conveying mechanism (3) is mounted on the mounting block (201), and the conveying mechanism (3) includes a conveying plate (301). The inner side of one end of the mounting block (201) is slidably connected to the conveying plate (301). The top of the conveying plate (301) extends to the inner side of the placement groove (204). A movable groove (303) is provided at the inner midline of the mounting block (201). The inner side of the movable groove (303) is slidably connected to a fixed block (304). The top of the fixed block (304) is fixedly connected to the conveying plate (301). A compression spring (305) is mounted on the fixed block (304), and one end of the compression spring (305) is connected to the inner side of one end of the movable groove (303). The push block (207) is a "T"-shaped structure, and the bottom of the push block (207) is slidably connected to the inner side of the movable groove (303).

4. The low-temperature impact resistance test device for offshore wind turbine planetary carrier forgings according to claim 3 is characterized by: The top of the transmission plate (301) is rollingly connected with multiple rows of equally spaced balls (302), and the transmission plate (301) is equal in width to the placement groove (204).

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

6. The low-temperature impact resistance test device for offshore wind turbine planetary carrier forgings according to claim 5, characterized in that: The bottom of one end of the cover plate (205) is rotatably connected to a pressing wheel (507), the pressing block (503) is a trapezoidal structure, and the top of the pressing block (503) is an arc-shaped structure.

7. The low-temperature impact resistance test device for offshore wind turbine planetary carrier forgings according to claim 1, characterized in that: The impact machine (1) is provided with a protective mechanism (6), the protective mechanism (6) comprising a protective cover (601), a protective cover (601) being provided on one side of the bottom of the impact machine (1), the protective cover (601) being an inverted trapezoidal structure, a through slot (602) being provided on the bottom of one side of the protective cover (601), the mounting block (201) being located outside the through slot (602), and the placement block (203) being located inside the bottom of the protective cover (601).

8. The low-temperature impact resistance test device for offshore wind turbine planetary carrier forgings according to claim 7, characterized in that: Two clamping plates (606) are installed on one side of the protective cover (601), and a slide plate (603) is slidably connected between the two clamping plates (606). The clamping plates (606) are of a "concave"-shaped structure. The slide plate (603) is located outside the through groove (602). Two control cylinders (604) are installed on one side of the protective cover (601), and the output shafts of the two control cylinders (604) are connected to both sides of the top of the slide plate (603).

9. The low-temperature impact resistance test device for offshore wind turbine planetary carrier forgings according to claim 8, characterized in that: Symmetrical collection boxes (605) are slidably connected to the inner sides of both ends of the protective cover (601), one end of each of the two collection boxes (605) extends to the inner side of the placement block (203), and the other end of each of the two collection boxes (605) extends to the outer side of the protective cover (601), and handles (607) are installed on the outer sides of each of the two collection boxes (605).

10. The low-temperature impact resistance test device for offshore wind turbine planetary carrier forgings according to claim 9, characterized in that: The clamping mechanism (7) includes a clamping block (701), and two clamping blocks (701) are slidably connected to the interior of one end of the placement block (203). The two clamping blocks (701) are in a "7"-shaped structure. One end of the top of the two clamping blocks (701) extends to the outside of the placement 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 placement block (203) through the clamping block (701). A plurality of extrusion springs (704) are connected between one side of the connecting plate (702) and the interior of the placement block (203). One end of the connecting plate (702) extends to the outside of the placement block (203), 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), and the driving block (707) is a triangular structure. The inner side of one end of the connecting plate (702) is slidably connected to a slider (706), 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), and the roller shaft (703) is rotatably connected to the outer side of the slider (706).

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