Prediction and detection device for roller screw

Abstract

The invention belongs to the technical field of lead screw detection devices, in particular to a prediction detection device for a roller lead screw, and provides the following scheme for solving the problems in the prior art: the prediction detection device comprises a moving frame, a quick release mechanism is arranged above the moving frame, and the quick release mechanism comprises a heavy load frame slidably connected to the top of the moving frame; connecting blocks are detachably connected between the inner wall of the top and the inner wall of the bottom of the heavy-load frame, threaded holes are formed between the two sides of the connecting blocks, the multiple connecting blocks can be provided with threaded holes of different sizes, and a telescopic groove is formed between the interiors of the two faces of the movable frame. According to the invention, through the arrangement of the connecting block, the screw rod I provided with the connecting block is fixed between the two fixing frames, so that the heavy-load frame is aligned with the connecting block, and the screw rod II is rotated to drive the clamping block to be clamped into the clamping groove and fix the heavy-load frame and the connecting block; the device can be replaced and debugged in a short time only by replacing the corresponding connecting blocks and couplings.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lead screw detection devices, and particularly relates to a prediction detection device for roller lead screws. BACKGROUND

[0002] A roller lead screw needs to be detected by a detection device before being put into use to detect the service life of the lead screw, so as to facilitate the selection of a suitable working lead screw.

[0003] According to the search, an invention patent with the publication number CN116593156A is entitled as a one-way loading running-in device for a planetary roller lead screw pair. The device is provided with a pressure test assembly, which is fixed to a nut for testing the thrust received by the nut. A bottom plate is used to bear the whole device, and a motor is used to provide a rotating torque to drive a torque sensor and a lead screw to rotate. The lead screw drives the nut to move linearly along a limiting slide column, so as to convert rotation into linear motion. The pressure test assembly applies pressure to the nut and measures the pressure received by the nut, so as to simulate the normal working condition of the nut and the lead screw, complete the one-way loading running-in experiment of the roller lead screw pair, and realize stable operation and simple operation of the whole device. The device can effectively apply pressure to and test the roller lead screw pair, reduce the participation of manual work, and improve the testing efficiency.

[0004] However, the device needs a long replacement and debugging process when different sizes and models of lead screws are replaced, which affects the detection efficiency of the device. SUMMARY

[0005] Based on the technical problems existing in the prior art, the present application provides a prediction detection device for a roller lead screw.

[0006] The prediction detection device for a roller lead screw provided by the present application comprises a moving frame, a quick-release mechanism is arranged above the moving frame, the quick-release mechanism comprises a heavy load frame which is slidably connected to the top of the moving frame, a connecting block is detachably connected between the top inner wall and the bottom inner wall of the heavy load frame, threaded holes are formed between the two sides of the connecting block, and different sizes of threaded holes can be arranged on the connecting block, a telescopic groove is formed between the two inner sides of the moving frame, clamping grooves aligned with the telescopic groove are formed on the two sides of the connecting block, a clamping block is slidably connected to the bottom inner wall of the telescopic groove, and one end of the clamping block extends into the clamping groove.

[0007] Preferably, a lead screw two is rotatably connected between the two outer walls of the telescopic groove, at least two sliding plates aligned with the clamping block are threadedly connected to the circumferential side surface of the lead screw two, the top of the sliding plate is slidably connected to the top inner wall of the telescopic groove, a connecting plate is fixedly connected to the bottom of the sliding plate, and the other end of the connecting plate is fixedly connected to the top of the clamping block.

[0008] Preferably, at least two limiting posts are fixedly connected between the two sides of the movable frame, and limiting blocks aligned with the limiting posts are evenly fixedly connected to the bottom of the heavy-duty frame. One side of the limiting block is slidably connected to one side of the movable frame, and the circumferential side of the limiting post is slidably connected to the inside of the limiting block.

[0009] Preferably, the top of the mobile frame is detachably connected to at least two fixed frames located on both sides of the heavy-duty frame, and a lead screw is detachably connected between the sides of the two fixed frames. A motor is fixedly connected to the side of the mobile frame and aligned with the lead screw, and the output shaft of the motor is fixedly connected to one end of the lead screw.

[0010] Preferably, the top of the movable frame is provided with disassembly holes evenly distributed. The top of the fixed frame is detachably connected with bolts, and the circumferential side of the bolts is threaded to the circumferential side of the disassembly holes. The bottom side of the movable frame is fixedly connected with a hydraulic press body. One end of the hydraulic press body is slidably connected with a hydraulic column, and the other end of the hydraulic column is fixedly connected with a movable block aligned with the heavy-duty frame. The top of the movable block is fixedly connected to the bottom of the heavy-duty frame. The side of the movable frame is fixedly connected with a support block located below the movable block, and the bottom of the movable block is slidably connected to the top of the support block.

[0011] Preferably, the side of the movable frame is fixedly connected to a housing that encloses the movable frame. A semi-circular opening is provided on the circumferential side of the housing. A circular ring plate aligned with the semi-circular opening is slidably connected inside the housing. An opening is uniformly provided between the two sides of the circular ring plate. A through groove communicating with the inside of the housing is uniformly provided on the circumferential side of the opening.

[0012] Preferably, the two ends of the circumferential side surface of the shell are rotatably connected to a rotating ring aligned with the annular plate. The side of the rotating ring is fixedly connected to one end of the annular plate, and a second opening aligned with the first opening is evenly provided between the two sides of the rotating ring.

[0013] Preferably, at least two arc-shaped blocks are slidably connected inside both ends of the circumferential side of the housing, and the gap between the two arc-shaped blocks is aligned with the second opening. An air inlet pipe aligned with the second opening is fixedly connected between the inner wall and the outer wall of the top side of the movable frame, and an air outlet pipe aligned with the second opening is fixedly connected between the inner wall and the outer wall of the bottom side of the movable frame.

[0014] Preferably, a motor three is fixedly connected to the inside of the side of the housing, and a rotating shaft is fixedly connected to the output shaft of the motor three. A gear aligned with the rotating ring is fixedly connected to the circumferential side of the rotating shaft. The circumferential side of the gear is meshed with the inner wall of the circumferential side of the rotating ring. An opening and closing plate aligned with the movable frame is detachably connected to the side of the housing. A support frame located inside the housing is fixedly connected to the bottom of the side of the opening and closing plate. The top of the support frame is fixedly connected to the bottom of the movable frame, and the bottom of the support frame is slidably connected to the inner wall of the circumferential side of the housing.

[0015] Preferably, both sides of the movable frame are provided with a winding groove. A motor is fixedly connected to the outer wall of one side of the winding groove. The output shaft of the motor is fixedly connected to a roller located inside the winding groove. The other end of the roller rotates to be connected to the inner wall of the winding groove. A shielding strip located above the heavy-duty frame is wound between the circumferential sides of the two rollers. Openings are evenly provided between the top and bottom of the shielding strip, and the adjacent openings are of different sizes.

[0016] The beneficial effects of this invention are: By using the connecting block, the lead screw 1, on which the connecting block is installed, is fixed between two fixed frames, aligning the heavy-duty frame with the connecting block. Rotating the lead screw 2 causes the locking block to engage with the slot, fixing the heavy-duty frame to the connecting block. When it is necessary to test lead screws of different sizes or structures, only the corresponding connecting block and coupling need to be replaced, and the device can be replaced and adjusted in a short time. This allows operators to complete the replacement and adjustment of the device in a few minutes, greatly improving the versatility and testing efficiency of the testing device and meeting diverse needs for accelerated lead screw life testing. After the device is installed, the hydraulic press body is started to drive the heavy-duty frame to apply an axial load to the lead screw 1, allowing the device to test the service life of the lead screw 1.

[0017] The airflow is directed into the housing through the inlet pipe. The airflow then flows along openings one and two and through the groove towards the lead screw. This allows the device to adjust the internal test temperature based on the temperature environment of the lead screw during production, preventing significant temperature differences between the lead screw during testing and the actual working environment, which could affect the accuracy of the lifespan test. It also facilitates testing the lead screw's lifespan at different temperatures, improving the device's applicability. The starting motor three drives the annular plate to rotate back and forth, aligning openings one and two with the inlet pipe, allowing airflow to enter through openings one and two... After the second hole, the air inlet pipe is staggered. The airflow from the openings one and two, which are staggered, blows in from both sides of the moving frame, causing the temperature of the space around the moving frame to rise and fall evenly. This helps to prevent large temperature fluctuations inside the device, which would cause the temperature to be unstable during the test, resulting in inconsistent test results and affecting the accuracy of the device. The air outlet pipe, together with the external pump, drives the airflow inside the device to leave, keeping the air inside the device circulating. This allows the newly entering airflow to fully contact the lead screw and the surrounding environment, improving the device's ability to regulate temperature.

[0018] By setting up a shielding belt, motor four is started. Motor four drives the roller to rotate, and the roller drives the shielding belt to move. The shielding belt drives the opening to move along lead screw one, which helps to isolate part of the airflow and adjust the temperature of lead screw one locally, thus expanding the testing range of the device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a predictive detection device for a roller screw proposed in this invention. Figure 2 This is a schematic diagram of the internal structure of a predictive detection device for a roller screw proposed in this invention. Figure 3 This is a schematic diagram of the moving frame structure of a predictive detection device for a roller screw proposed in this invention; Figure 4 This is a schematic diagram of the heavy-duty frame structure of a predictive detection device for roller screws proposed in this invention. Figure 5 This is a schematic diagram of the housing structure of a predictive detection device for a roller screw proposed in this invention; Figure 6 This is a schematic diagram of the shielding strip structure of a predictive detection device for a roller screw proposed in this invention.

[0020] In the diagram: 1-Moving frame, 2-Hydraulic press body, 3-Rewinding groove, 4-Roller, 5-Motor III, 6-Arc block, 7-Rotating ring, 8-Gear, 9-Rotating shaft, 10-Circular ring plate, 11-Opening I, 12-Through groove, 13-Shielding strip, 14-Fixed frame, 15-Screw I, 16-Heavy load frame, 17-Screw II, 18-Connecting block, 19-Opening, 20-Motor I, 21-Opening II, 22-Air inlet pipe, 23-Opening and closing plate, 24-Shell, 25-Support frame, 26-Support block, 27-Moving block, 28-Hydraulic column, 29-Air outlet pipe, 30-Motor IV, 31-Limiting block, 32-Limiting column, 33-Card block, 34-Telescopic groove, 35-Connecting plate, 36-Slide plate. Detailed Implementation

[0021] Example 1, referring to Figures 1-4 A predictive detection device for a ball screw includes a movable frame 1. A quick-release mechanism is provided above the movable frame 1. The quick-release mechanism includes a heavy-duty frame 16 slidably connected to the top of the movable frame 1. A connecting block 18 is detachably connected between the top inner wall and the bottom inner wall of the heavy-duty frame 16. Threaded holes are provided between the two sides of the connecting block 18, and threaded holes of different sizes can be provided on multiple connecting blocks 18. A telescopic groove 34 is provided between the two inner sides of the movable frame 1. A slot aligned with the telescopic groove 34 is provided on both sides of the connecting block 18. A locking block 33 is slidably connected to the bottom inner wall of the telescopic groove 34, and one end of the locking block 33 extends into the inside of the slot.

[0022] In this invention, a second lead screw 17 is rotatably connected between the two outer walls of the telescopic groove 34. At least two slide plates 36 aligned with the locking block 33 are threadedly connected to the circumferential side of the second lead screw 17. The top of the slide plate 36 is slidably connected to the top inner wall of the telescopic groove 34. A connecting plate 35 is fixedly connected to the bottom of the slide plate 36. The other end of the connecting plate 35 is fixedly connected to the top of the locking block 33.

[0023] At least two limiting posts 32 are fixedly connected between the two sides of the mobile frame 1. The bottom of the heavy-duty frame 16 is evenly fixedly connected with limiting blocks 31 aligned with the limiting posts 32. One side of the limiting block 31 is slidably connected to one side of the mobile frame 1, and the circumferential side of the limiting post 32 is slidably connected to the inside of the limiting block 31.

[0024] The top of the mobile frame 1 is detachably connected to at least two fixed frames 14 located on both sides of the heavy-duty frame 16. A lead screw 15 is detachably connected between the sides of the two fixed frames 14. A motor 20 aligned with the lead screw 15 is fixedly connected to the side of the mobile frame 1. The output shaft of the motor 20 is fixedly connected to one end of the lead screw 15.

[0025] The top of the movable frame 1 is evenly provided with disassembly holes. The top of the fixed frame 14 is detachably connected with bolts. The circumferential side of the bolts is threaded to the circumferential side of the disassembly holes. The bottom side of the movable frame 1 is fixedly connected with a hydraulic press body 2. One end of the hydraulic press body 2 is slidably connected with a hydraulic column 28. The other end of the hydraulic column 28 is fixedly connected with a movable block 27 aligned with the heavy-duty frame 16. The top of the movable block 27 is fixedly connected to the bottom of the heavy-duty frame 16. The side of the movable frame 1 is fixedly connected with a support block 26 located below the movable block 27. The bottom of the movable block 27 is slidably connected to the top of the support block 26.

[0026] In use of this invention: The connecting block 18 is threaded onto the lead screw 15. The bolts on the fixing bracket 14 are removed and installed. The distance between the two fixing brackets 14 is adjusted to be equal to the length of the lead screw 15 to be tested. The lead screw 15 is installed between the two fixing brackets 14 and connected to the motor 20 via a coupling. The heavy-duty frame 16 is moved so that it aligns with the connecting block 18. The lead screw 17 is rotated, causing the sliding plate 26 to move. The sliding plate 26 moves the connecting plate 35, which in turn moves the locking block 33, causing it to engage with the slot and connect the heavy-duty frame 16 and the connecting block 18. When it is necessary to test lead screws of different sizes or structures, only the corresponding connecting block 18 and coupling need to be replaced. The replacement and debugging of the device can be completed in a short time. This allows operators to complete the replacement and adjustment of the device in a few minutes, greatly improving the versatility and testing efficiency of the testing device and meeting the diverse needs of accelerated lead screw life testing. After the device is installed, the hydraulic press body 2 is started. The hydraulic press body 2 drives the hydraulic column 28 to move, the hydraulic column 28 drives the moving block 27 to move, and the moving block 27 drives the heavy-duty frame 16 to move. The heavy-duty frame 16 applies an axial load to the lead screw 15, so that the device tests the service life of the lead screw 15.

[0027] Example 2, refer to Figures 1-2 and Figure 5 A predictive detection device for a ball screw includes a housing 24 fixedly connected to the side of a movable frame 1, the housing 24 having a semi-circular opening on its circumferential side, and a circular ring plate 10 slidably connected inside the housing 24, aligned with the semi-circular opening. An opening 11 is evenly provided between the two sides of the circular ring plate 10, and a through groove 12 communicating with the inside of the housing 24 is evenly provided on the circumferential side of the opening 11.

[0028] In this invention, a rotating ring 7 aligned with a circular ring plate 10 is rotatably connected to both ends of the circumferential side surface of the housing 24. The side surface of the rotating ring 7 is fixedly connected to one end of the circular ring plate 10. An opening 21 aligned with an opening 11 is evenly provided between the two sides of the rotating ring 7.

[0029] At least two arc-shaped blocks 6 are slidably connected to the inside of both ends of the circumferential side of the housing 24, and the gap between the two arc-shaped blocks 6 is aligned with the second opening 21. An air inlet pipe 22 aligned with the second opening 21 is fixedly connected between the inner wall and the outer wall of the top side of the movable frame 1. An air outlet pipe 29 aligned with the second opening 21 is fixedly connected between the inner wall and the outer wall of the bottom side of the movable frame 1.

[0030] A motor 3 5 is fixedly connected to the inside of the side of the housing 24. The output shaft of the motor 3 5 is fixedly connected to a rotating shaft 9. A gear 8 aligned with a rotating ring 7 is fixedly connected to the circumferential side of the rotating shaft 9. The circumferential side of the gear 8 is meshed with the inner wall of the circumferential side of the rotating ring 7. An opening and closing plate 23 aligned with a movable frame 1 is detachably connected to the side of the housing 24. A support frame 25 located inside the housing 24 is fixedly connected to the bottom of the side of the opening and closing plate 23. The top of the support frame 25 is fixedly connected to the bottom of the movable frame 1, and the bottom of the support frame 25 is slidably connected to the inner wall of the circumferential side of the housing 24.

[0031] In use, the airflow is fed into the housing 24 through the inlet pipe 22. The airflow enters the first opening 11 along the second opening 21, allowing the airflow to pass through the through groove 12 and blow towards the lead screw 15. This facilitates the device in adjusting the internal test temperature according to the temperature environment of the lead screw 15 during production, preventing a large temperature difference between the lead screw 15 during testing and the actual working environment, which would affect the accuracy of the device's lifespan test for the lead screw 15. It also facilitates the device in testing the lifespan of the lead screw 15 at different temperatures, improving the device's applicability. The third motor 5 is started, driving the rotating shaft 9 to rotate. The rotating shaft 9 drives the gear 8 to rotate back and forth, the gear 8 drives the rotating ring 7 to rotate back and forth, and the rotating ring 7 drives the circular plate 10 to rotate back and forth, causing the opening... The first hole 11 and the second hole 21 are aligned with the air inlet pipe 22. After the airflow enters the first hole 11 and the second hole 21, it is staggered from the air inlet pipe 22. The airflow in the first hole 11 and the second hole 21, which are staggered from the air inlet pipe 22, is blown in from both sides of the moving frame 1, so that the temperature of the space around the moving frame 1 rises and falls evenly. This helps to prevent large temperature fluctuations inside the device, which would make the temperature unstable during the test and cause inconsistent results in multiple tests, affecting the accuracy of the device test. The air outlet pipe 29, together with the external pump, drives the airflow inside the device to leave, so that the air inside the device remains circulating. This allows the newly entering airflow to fully contact the lead screw 15 and the surrounding environment, improving the device's ability to regulate temperature.

[0032] Example 3, referring to Figures 2-4 and Figure 6 A predictive detection device for a ball screw includes a movable frame 1 with take-up grooves 3 on both sides. A motor 4 30 is fixedly connected to the outer wall of one side of the take-up groove 3. The output shaft of the motor 4 30 is fixedly connected to a roller 4 located inside the take-up groove 3. The other end of the roller 4 rotates to connect to the inner wall of the take-up groove 3. A shielding strip 13 located above a heavy-duty frame 16 is wound between the circumferential sides of the two rollers 4. Openings 19 are evenly opened between the top and bottom of the shielding strip 13, and the adjacent openings 19 are of different sizes.

[0033] When using this invention: start motor 4 30, motor 4 30 drives roller 4 to rotate, roller 4 drives shielding belt 13 to move, shielding belt 13 drives opening 19 to move along lead screw 15, which helps to isolate part of the airflow and adjust the temperature of lead screw 15 locally, thus expanding the testing range of the device.

[0034] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A predictive detection device for roller screws, comprising a movable frame (1), characterized in that, A quick-release mechanism is provided above the mobile frame (1). The quick-release mechanism includes a heavy-duty frame (16) slidably connected to the top of the mobile frame (1). A connecting block (18) is detachably connected between the top inner wall and the bottom inner wall of the heavy-duty frame (16). Threaded holes are provided between the two sides of the connecting block (18), and threaded holes of different sizes can be provided on multiple connecting blocks (18). A telescopic groove (34) is provided between the two inner sides of the mobile frame (1). A slot aligned with the telescopic groove (34) is provided on both sides of the connecting block (18). A locking block (33) is slidably connected to the bottom inner wall of the telescopic groove (34), and one end of the locking block (33) extends into the inside of the slot.

2. The predictive detection device for a roller screw according to claim 1, characterized in that, A second lead screw (17) is rotatably connected between the two outer walls of the telescopic groove (34). At least two sliding plates (36) aligned with the locking block (33) are threadedly connected to the circumferential side of the second lead screw (17). The top of the sliding plate (36) is slidably connected to the top inner wall of the telescopic groove (34). A connecting plate (35) is fixedly connected to the bottom of the sliding plate (36). The other end of the connecting plate (35) is fixedly connected to the top of the locking block (33).

3. The predictive detection device for a roller screw according to claim 2, characterized in that, At least two limiting posts (32) are fixedly connected between the two sides of the mobile frame (1). The bottom of the heavy-duty frame (16) is uniformly fixedly connected with limiting blocks (31) aligned with the limiting posts (32). One side of the limiting block (31) is slidably connected to one side of the mobile frame (1), and the circumferential side of the limiting post (32) is slidably connected to the inside of the limiting block (31).

4. The predictive detection device for a roller screw according to claim 3, characterized in that, The top of the mobile frame (1) is detachably connected to at least two fixed frames (14) located on both sides of the heavy-duty frame (16). A lead screw (15) is detachably connected between the sides of the two fixed frames (14). A motor (20) aligned with the lead screw (15) is fixedly connected to the side of the mobile frame (1). The output shaft of the motor (20) is fixedly connected to one end of the lead screw (15).

5. The predictive detection device for a roller screw according to claim 4, characterized in that, The top of the movable frame (1) is evenly provided with disassembly holes. The top of the fixed frame (14) is detachably connected with bolts. The circumferential side of the bolts is threaded to the circumferential side of the disassembly holes. The bottom side of the movable frame (1) is fixedly connected with a hydraulic press body (2). One end of the hydraulic press body (2) is slidably connected with a hydraulic column (28). The other end of the hydraulic column (28) is fixedly connected with a movable block (27) aligned with the heavy-duty frame (16). The top of the movable block (27) is fixedly connected to the bottom of the heavy-duty frame (16). The side of the movable frame (1) is fixedly connected with a support block (26) located below the movable block (27). The bottom of the movable block (27) is slidably connected to the top of the support block (26).

6. A predictive detection device for a roller screw according to claim 4 or 5, characterized in that, The side of the movable frame (1) is fixedly connected to a shell (24) that encloses the movable frame (1). A semi-circular opening is provided on the circumferential side of the shell (24). A circular ring plate (10) aligned with the semi-circular opening is slidably connected inside the shell (24). An opening (11) is evenly provided between the two sides of the circular ring plate (10). A through groove (12) communicating with the inside of the shell (24) is evenly provided on the circumferential side of the opening (11).

7. The predictive detection device for a roller screw according to claim 6, characterized in that, The two ends of the circumferential side of the housing (24) are rotatably connected to a rotating ring (7) aligned with the annular plate (10). The side of the rotating ring (7) is fixedly connected to one end of the annular plate (10). An opening (21) aligned with the opening one (11) is evenly opened between the two sides of the rotating ring (7).

8. The predictive detection device for a roller screw according to claim 7, characterized in that, At least two arc-shaped blocks (6) are slidably connected inside both ends of the circumferential side of the housing (24), and the gap between the two arc-shaped blocks (6) is aligned with the second opening (21). An air inlet pipe (22) aligned with the second opening (21) is fixedly connected between the inner wall and the outer wall of the top side of the movable frame (1), and an air outlet pipe (29) aligned with the second opening (21) is fixedly connected between the inner wall and the outer wall of the bottom side of the movable frame (1).

9. The predictive detection device for a roller screw according to claim 8, characterized in that, The side of the housing (24) is fixedly connected to a motor three (5), the output shaft of the motor three (5) is fixedly connected to a rotating shaft (9), the circumferential side of the rotating shaft (9) is fixedly connected to a gear (8) aligned with the rotating ring (7), the circumferential side of the gear (8) is meshed with the inner wall of the circumferential side of the rotating ring (7), the side of the housing (24) is detachably connected to an opening and closing plate (23) aligned with the moving frame (1), the bottom side of the opening and closing plate (23) is fixedly connected to a support frame (25) located inside the housing (24), the top of the support frame (25) is fixedly connected to the bottom of the moving frame (1), and the bottom of the support frame (25) is slidably connected to the inner wall of the circumferential side of the housing (24).

10. The predictive detection device for a roller screw according to claim 6, characterized in that, The movable frame (1) has a winding groove (3) on both sides. A motor (30) is fixedly connected to one outer wall of the winding groove (3). The output shaft of the motor (30) is fixedly connected to a roller (4) located inside the winding groove (3). The other end of the roller (4) rotates to the inner wall of the winding groove (3). A shielding strip (13) located above the heavy-duty frame (16) is wrapped between the circumferential sides of the two rollers (4). Openings (19) are evenly opened between the top and bottom of the shielding strip (13), and the adjacent openings (19) are different in size.

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