A belt wheel body impact strength measuring instrument

Abstract

The application relates to the technical field of impact detection, and discloses a pulley wheel body impact strength measuring instrument, which comprises a measuring instrument body, an impact device and a fixing device. The impact device and the fixing device are provided with double stations, the impact strength of two groups of pulley wheels can be measured at the same time, the efficiency during measurement is improved, the number of counterweight blocks can be adjusted, the counterweight blocks are sequentially increased from less to more, the impact strength of the pulley wheels under different weights can be tested, the screw nuts can be rotated to any position on the threaded rods through the threaded cooperation between the screw nuts and the threaded rods, the counterweight blocks can be fixed at different positions of the threaded rods through the cooperation between the screw nuts, the impact landing points of the counterweight blocks on the pulley wheels are adjusted, and the impact strength of different positions of the pulley wheels is tested.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of impact detection, and particularly relates to a pulley wheel body impact strength measuring instrument. BACKGROUND

[0002] The pulley belongs to a hub part, and is generally large in relative size. The manufacturing process is generally casting and forging, and the material is generally cast iron. The pulley is mainly used for long-distance power transmission, such as output of small diesel engine power, agricultural vehicles, tractors, automobiles, mine machinery, machining equipment, lathes, forging machines, power transmission of some small horsepower motorcycles, power transmission of agricultural machinery, reducers, speed reducers, generators and the like.

[0003] After the pulley is completed, quality detection needs to be performed on the pulley, such as density detection, environment detection and impact strength detection. The existing impact strength detection is generally manually detected by an operator, which is low in detection efficiency, inaccurate in detection accuracy and increases labor intensity of the processing personnel.

[0004] The pulley wheel body impact strength measuring instrument is provided to improve the above defects. SUMMARY

[0005] The application aims to overcome the defects of the prior art and provide a pulley wheel body impact strength measuring instrument which can improve the impact strength detection function of the pulley.

[0006] To solve the above technical problems, the application adopts the following technical scheme.

[0007] A pulley wheel body impact strength measuring instrument, which comprises a measuring instrument body, a control box, an impact device and a fixing device. The impact device is installed on the measuring instrument body. The fixing device is arranged directly below the impact device. The control box is installed on the measuring instrument body. The control box can drive the impact device and the fixing device to operate through electrical connection.

[0008] In a specific implementation, the impact device comprises a bottom plate, a hydraulic cylinder, a mounting plate, a stabilizing rod, a fixing frame and a counterweight. The bottom plate is fixed with a stand column on the measuring instrument body. The hydraulic cylinder is installed on the bottom plate. The piston end of the hydraulic cylinder penetrates through the bottom plate and is connected with the mounting plate. The stabilizing rods are arranged on both sides of the mounting plate. The fixing frame is fixedly installed at the bottom of the mounting plate. The fixing frame is provided with a plurality of counterweights on both sides.

[0009] In a specific implementation, the fixing frame comprises a partition block, a threaded rod and a nut. The fixing frame is fixed with the partition block at the bottom. The threaded rod is installed on the partition block. The nuts are screw-connected with both ends of the threaded rod.

[0010] In one specific implementation, the counterweight includes a slot, a through hole, and an L-shaped hook, the slot and the through hole are formed on the counterweight, the diameter of the through hole is larger than the diameter of the threaded rod, and the L-shaped hook is fixed to one end of the counterweight and can be movably clamped with the fixing frame.

[0011] In one specific implementation, the fixing device includes a ball screw set, a guide rail set, a motor, a moving seat, a clamping mechanism, a chain, a gear, a limiting plate, and a rubber pad, one side of the ball screw set is provided with the guide rail set, the ball screw set and the guide rail set are slidably connected with the moving seat, the clamping mechanism is installed on both groups of moving seats, the bottom of the clamping mechanism is connected with the chain, the gear is engaged with the chain, the gear is driven by the motor, the other side of the clamping mechanism is provided with the limiting plate, two groups of rubber pads are fixed on the limiting plate, and the motor is installed at one end of the ball screw set.

[0012] In one specific implementation, the motor set is located on the measuring instrument body and is slidably connected with the sliding groove in the body.

[0013] In one specific implementation, the clamping mechanism includes a placement disc, a spiral disc, a rotating disc, a temperature control device, and a damping seat, the bottom of the placement disc is rotatably connected with the spiral disc, the bottom of the spiral disc is fixed with the rotating disc, the rotating disc is connected with the chain, the top of the placement disc is installed with the damping seat and a plurality of temperature control devices, and the damping seat is located on the same center line with the placement disc and the spiral disc.

[0014] In one specific implementation, the temperature control device includes a fan, a heating pipe, an upper inclined plate, a lower inclined plate, and a driving assembly, a plurality of heating pipes are arranged on the blowing side of the fan, a plurality of upper inclined plates and lower inclined plates are installed on the other side of the heating pipes, the upper inclined plates and the lower inclined plates are rotatably connected with the fan and are rotatably driven by the driving assembly located on both sides of the fan, and the upper inclined plates and the lower inclined plates are symmetrically arranged.

[0015] In one specific implementation, the driving assembly includes a driving gear, a rack, a limiting frame, and a driven gear, the driving gear is engaged with the rack on one side, the rack is slidably connected with the limiting frame at both ends, the other side of the rack is engaged with two driven gears, and the two driven gears are respectively connected with the lower inclined plates.

[0016] In one specific implementation, a plurality of moving grooves are arranged on the placement disc, and a clamping block is slidably connected with each moving groove.

[0017] In one specific implementation, the spiral disc is provided with spiral grooves, and the spiral grooves are movably clamped with the clamping blocks.

[0018] In one specific implementation, the clamping blocks are internally provided with spring dampers.

[0019] In one specific implementation, the damping seat comprises a concave-convex ring, air bags and arc blocks, the air bags are mounted in the concave grooves of the concave-convex ring, and the arc blocks are fixed in the convex grooves of the concave-convex ring.

[0020] According to the technical scheme, the belt pulley body impact strength measuring instrument has the following beneficial effects:

[0021] (1) The impact device and the fixing device with double stations are arranged, so that the impact strength of two groups of belt pulleys can be measured at the same time, and the efficiency during measurement is improved.

[0022] (2) The number of the counterweights is adjusted, and the impact strength of the belt pulley under different weights can be tested by increasing from less to more in sequence, the counterweights can be fixed at different positions of the threaded rods by the thread cooperation between the nuts and the threaded rods, and the impact points of the counterweights on the belt pulley are adjusted, so that the impact strength of different positions of the belt pulley is tested.

[0023] (3) The temperature control device is additionally arranged, the driving gear rotates in the forward and reverse directions, drives the rack to move up and down, the two groups of driven gears are synchronously rotated by the rack, the rotation angles of the upper and lower inclined plates are adjusted, the exhaust amount of the hot air is controlled, the heating temperature of the belt pulley is adjusted, the impact strength of the belt pulley under different temperatures is simulated, and the temperature control device is arranged in an annular array, so that the belt pulley is uniformly heated.

[0024] (4) The damping seat is arranged on the clamping mechanism, the convex grooves are supported by the arc blocks of the concave-convex ring, the concave structure of the concave-convex ring and the air bags are matched, the bottom of the belt pulley is supported and buffered, the impact force on the belt pulley is buffered and unloaded when the belt pulley is impacted, and the clamping mechanism is prevented from being damaged. BRIEF DESCRIPTION OF DRAWINGS

[0025] Other features, objects and advantages of the application will become more apparent from the following detailed description of non-limiting embodiments, which is to be read in conjunction with the accompanying drawings:

[0026] Figure 1It is a structural schematic diagram of a belt pulley wheel body impact strength measuring instrument in an embodiment of the application;

[0027] Figure 2 It is a structural schematic diagram of an impact device in an embodiment of the application;

[0028] Figure 3 It is a mounting structure schematic diagram of a fixing frame and a counterweight in an embodiment of the application;

[0029] Figure 4 It is a structural schematic diagram of a fixing device in an embodiment of the application;

[0030] Figure 5 It is a structural schematic diagram of a clamping mechanism in an embodiment of the application;

[0031] Figure 6 It is a structural schematic diagram of a temperature control device in an embodiment of the application;

[0032] Figure 7 It is a structural schematic diagram of a driving assembly in an embodiment of the application;

[0033] Figure 8 It is an exploded schematic diagram of a clamping mechanism in an embodiment of the application;

[0034] Figure 9 It is an enlarged structural schematic diagram of A in an embodiment of the application; Figure 5

[0035] Figure 10 It is a structural schematic diagram of a shock absorbing seat in an embodiment of the application.

[0036] In the figure: measuring instrument body-1, control box-2, impact device-3, fixing device-4, bottom plate-31, hydraulic cylinder-32, mounting plate-33, stabilizing rod-34, fixing frame-35, counterweight-36, partition block-351, threaded rod-352, nut-353, slotted-361, through hole-362, L-shaped hook-363, ball screw set-41, guide rail set-42, motor-43, moving seat-44, clamping mechanism-45, chain-46, gear-47, limiting plate-48, rubber pad-49, placement disc-451, spiral disc-452, rotating disc-453, temperature control device-454, shock absorbing seat-455, fan-11, heating pipe-12, upper inclined plate-13, lower inclined plate-14, driving assembly-15, driving gear-151, rack-152, limiting frame-153, driven gear-154, moving groove-21, clamping block-22, spiral groove-51, spring damping-221, concave-convex ring-71, air bag-72, arc block-73. DETAILED DESCRIPTION

[0037] ​The technical means, creative features, purposes and effects of the present application are described below in conjunction with specific embodiments.

[0038] Embodiment one: please refer to Figures 1-3 The specific embodiments of the present application are as follows:

[0039] A belt pulley wheel body impact strength measuring instrument, which comprises a measuring instrument body 1, a control box 2, an impact device 3 and a fixing device 4, the impact device 3 is installed on the measuring instrument body 1, the fixing device 4 capable of fixing the belt pulley is arranged directly below the impact device 3, the control box 2 is installed on the measuring instrument body 1, and the control box 2 can drive the impact device 3 and the fixing device 4 to operate through electrical connection.

[0040] Please refer to Figure 2 The impact device 3 comprises a bottom plate 31, a hydraulic cylinder 32, a mounting plate 33, a stabilizing rod 34, a fixing frame 35 and a counterweight block 36, the bottom plate 31 is fixed with the stand on the measuring instrument body 1, the hydraulic cylinder 32 is installed on the bottom plate 31, the piston end of the hydraulic cylinder 32 penetrates through the bottom plate 31 and is connected with the mounting plate 33, the stabilizing rods 34 are arranged on both sides of the mounting plate 33, the two groups of stabilizing rods 34 are in sliding fit with the bottom plate 31, which can increase the stability when the mounting plate 33 moves, the fixing frame 35 is fixedly installed at the bottom of the mounting plate 33, and the counterweight blocks 36 are symmetrically arranged on both sides of the fixing frame 35.

[0041] Please refer to Figure 2 The counterweight blocks 36 can be driven downward by the hydraulic cylinder 32 to impact the belt pulley on the fixing device 4, and the number of the counterweight blocks 36 can be adjusted.

[0042] Please refer to Figure 3 The fixing frame 35 comprises a partition block 351, a threaded rod 352 and a nut 353, the partition block 351 capable of symmetrically partitioning the counterweight blocks 36 is fixed at the bottom of the fixing frame 35, the threaded rod 352 is installed on the partition block 351, and the nuts 353 are screw-fitted on both ends of the threaded rod 352.

[0043] Please refer to Figures 2-3 The counterweight block 36 comprises a slot 361, a through hole 362 and an L-shaped hook 363, the slot 361 and the through hole 362 are formed in the counterweight block 36, the slot 361 can facilitate taking the counterweight block 36, the diameter of the through hole 362 is greater than that of the threaded rod 352, so that the counterweight block 36 can be placed on the threaded rod 352, and the L-shaped hook 363 is fixed at one end of the counterweight block 36, the L-shaped hook 363 can be movably clamped with the fixing frame 35, the counterweight block 36 is vertically placed, and the vertical surface of the counterweight block 36 faces downward to impact the belt pulley for test.

[0044] Please refer toFigure 3 By placing the counterweight 36 on the threaded rod 352 of the fixing frame 35, the impact resistance of the belt pulley under different weights can be tested by adjusting the number of counterweights 36, sequentially increasing from less to more, and by the threaded cooperation between the nut 353 and the threaded rod 352, the nut 353 can be rotated to any position on the threaded rod 352, and by the cooperation between the plurality of nuts 353, the counterweight 36 can be fixed at different positions of the threaded rod 352, so as to adjust the impact point of the counterweight 36 on the belt pulley, and then test the impact resistance of the belt pulley at different positions.

[0045] Embodiment two: please refer to Figures 4-10 The specific embodiments of the present application are as follows:

[0046] Please refer to Figure 4 The fixing device 4 comprises a ball screw set 41, a guide rail set 42, a motor 43, a moving seat 44, a clamping mechanism 45, a chain 46, a gear 47, a limiting plate 48 and a rubber pad 49. One side of the ball screw set 41 is provided with the guide rail set 42. The ball screw set 41 and the guide rail set 42 are both slidably connected with the moving seat 44. The two sets of moving seats 44 are both installed with the clamping mechanism 45 capable of fixing the belt pulley. The bottoms of the two sets of clamping mechanisms 45 are linked and cooperated through the chain 46. The chain 46 is meshed with the gear 47. The bottom of the gear 47 is driven by the motor set. The other side of the clamping mechanism 45 is provided with the limiting plate 48. The limiting plate 48 is fixed with two sets of rubber pads 49. The rubber pads 49 can be in contact with the clamping mechanism 45. When the clamping mechanism 45 contacts the rubber pad 49, it stops moving. One end of the ball screw set 41 is installed with the motor 43. The ball screw is driven to rotate by the motor 43.

[0047] Please refer to Figure 4 The motor set is located on the measuring instrument body 1 and is slidably connected with the sliding groove inside the body. It can move synchronously on the measuring instrument body 1 with the movement of the clamping mechanism 45 and is driven by the control box 2.

[0048] Please refer to Figures 5-8 The clamping mechanism 45 comprises a placing disc 451, a spiral disc 452, a rotating disc 453, a temperature control device 454 and a damping seat 455. The bottom of the placing disc 451 is rotatably connected with the spiral disc 452. The bottom of the spiral disc 452 is fixed with the rotating disc 453. The rotating disc 453 is cooperated with the chain 46 and can drive the rotating disc 453 to rotate. The top of the placing disc 451 is installed with the damping seat 455 and a plurality of temperature control devices 454. The damping seat 455 is on the same center line with the placing disc 451 and the spiral disc 452.

[0049] Please refer to Figure 6The temperature control device 454 comprises the fan 11, the heating pipe 12, the upper inclined plate 13, the lower inclined plate 14 and the driving assembly 15. The blowing side of the fan 11 is provided with a plurality of heating pipes 12. The other side of the plurality of heating pipes 12 is provided with a plurality of upper inclined plates 13 and lower inclined plates 14. The plurality of upper inclined plates 13 and lower inclined plates 14 are rotationally matched with the fan 11 and are rotationally driven by the driving assembly 15 located on both sides of the fan 11. The plurality of upper inclined plates 13 and lower inclined plates 14 are symmetrically arranged.

[0050] Please refer to Figures 6-7 The driving assembly 15 comprises the driving gear 151, the rack 152, the limiting frame 153 and the driven gear 154. The driving gear 151 is located on the fan 11 and is driven by electrical connection. One side of the driving gear 151 is engaged with the rack 152. The two ends of the rack 152 are slidingly matched with the limiting frame 153. The other side of the rack 152 is engaged with the two driven gears 154. The two driven gears 154 are respectively connected with the lower inclined plates 14.

[0051] Please refer to Figure 7 Through the forward and reverse rotation of the driving gear 151, the rack 152 engaged with the driving gear 151 can be moved up and down. With the movement of the rack 152, the two groups of driven gears 154 engaged with the other side of the rack 152 can be synchronously rotated, so as to control the rotation of the two groups of lower inclined plates 14 and adjust the size of the air outlet of the lower inclined plates 14. The driving of the plurality of upper inclined plates 13 is the same. By adjusting the rotation angle of the upper inclined plates 13 and the lower inclined plates 14, the air exhaust volume of the hot air can be controlled, so as to adjust the heating temperature of the belt pulley. The impact resistance of the belt pulley under different temperatures can be simulated. The temperature control device 454 is arranged in an annular array, so as to uniformly heat the belt pulley.

[0052] Please refer to Figure 8 The placing disc 451 is provided with a plurality of moving grooves 21. A plurality of clamping blocks 22 are slidingly matched with the plurality of moving grooves 21. The clamping blocks 22 can fix the belt pulley.

[0053] Please refer to Figure 8 The spiral disc 452 is provided with a spiral groove 51. The spiral groove 51 is movably clamped with the clamping block 22. The rotation of the spiral disc 452 can drive the plurality of clamping blocks 22 to slide and make clamping movement on the moving grooves 21.

[0054] Please refer to Figure 9 A plurality of spring dampers 221 are installed in the clamping block 22. The plurality of spring dampers 221 can buffer and dampen the clamping block 22.

[0055] Please refer to Figure 10The shock-absorbing base 455 comprises the concave-convex ring 71, the air bags 72 and the arc blocks 73, the air bags 72 are arranged in the concave grooves of the concave-convex ring 71, and the arc blocks 73 are fixed in the convex grooves of the concave-convex ring 71, the arc blocks 73 can support the convex grooves by the buffering performance of the arc structure, and the concave-convex ring 71 and the air bags 72 can buffer and support the bottom of the belt pulley by cooperation, when the belt pulley is impacted, the impact force on the belt pulley can be buffered and unloaded, and the clamping mechanism 45 is prevented from being damaged.

[0056] Based on the above embodiment, the specific working principle is as follows:

[0057] The ball screw set 41 is driven by the motor 43 to move, the clamping mechanisms 45 on the two groups of moving bases 44 are driven to move outward, the belt pulley is placed on the shock-absorbing base 455 of the clamping mechanism 45 by the processing personnel, the motor set on the measuring instrument body 1 is driven to rotate, the gears 47 connected with the motor set are driven to rotate, the gears 47 and the chains 46 are engaged, the rotation of the chains 46 can drive the rotating discs 453 and the spiral discs 452 on the two groups of clamping mechanisms 45 to rotate, when the spiral disc 452 rotates, the spiral groove 51 can drive the clamping blocks 22 to slide on the moving groove 21, the belt pulley is clamped by the clamping blocks 22, and then the ball screw set 41 is driven to move the two groups of moving bases 44, the two groups of clamping mechanisms 45 are transported to the position directly below the impact device 3 and then stopped.

[0058] The bottom counterweight 36 is driven by the hydraulic cylinder 32 to fall downward to impact the belt pulley, so that the impact resistance of the belt pulley can be tested, the number of the counterweights 36 is adjusted from small to large, the impact resistance of the belt pulley under different weights can be tested, the counterweights 36 are fixed at different positions on the threaded rod 352 through the threaded cooperation between the nuts 353 and the threaded rod 352 and the cooperation between the plurality of nuts 353, so that the gravity center of the counterweights 36 and the impact point of the belt pulley are adjusted, and the impact resistance of the belt pulley at different positions is tested.

[0059] When the belt pulley is measured by impact, the fan 11 and the heating pipe 12 on the temperature control device 454 are driven to rotate, the air blown by the fan 11 becomes hot air after passing through the heating pipe 12 and blows to the belt pulley, so that the impact resistance of the belt pulley in a high-temperature environment is measured, the gear 151 is driven to rotate in the forward and reverse directions, the rack 152 engaged with the gear 151 is driven to move up and down, the two groups of driven gears 154 engaged with the rack 152 are driven to rotate synchronously, so that the two groups of lower inclined plates 14 and the upper inclined plate 13 are controlled to rotate, the rotation angle of the upper inclined plate 13 and the lower inclined plate 14 is adjusted, the air exhaust amount of the hot air is controlled, the heating temperature of the belt pulley is adjusted, and the impact resistance of the belt pulley under different temperatures is simulated.

[0060] The concave structure of the convex and concave ring 71 on the clamping mechanism 45 cooperates with the air bag 72 to buffer and support the bottom of the belt pulley, and when the belt pulley is impacted, the impact force on the belt pulley can be buffered and unloaded, so as to avoid damage to the clamping mechanism 45.

[0061] In the description of the present application, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0062] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application.

Claims

1. A belt pulley wheel body impact strength measuring instrument, which structure includes measuring instrument body (1), impact device (3) arranged on the measuring instrument body (1), fixing device (4) located directly below the impact device (3) and control box (2) installed on the measuring instrument body (1); characterized in that: the impact device (3) includes bottom plate (31), hydraulic cylinder (32) installed on the bottom plate (31), mounting plate (33) arranged on the piston end of the hydraulic cylinder (32), stabilizing rods (34) located on both sides of the mounting plate (33), fixing frame (35) installed on the bottom of the mounting plate (33) and several counterweights (36) arranged on both sides of the fixing frame (35); the fixing device (4) includes ball screw group (41), guide rail group (42) arranged on one side of the ball screw group (41), moving seat (44) used for sliding fit with the ball screw group (41) and the guide rail group (42), clamping mechanism (45) located on two groups of moving seats (44), chain (46) located at the bottom of two groups of clamping mechanisms (45), gear (47) used for engaging with the chain (46), motor group located at the bottom of the gear (47), limiting plate (48) arranged on the other side of the clamping mechanism (45), two groups of rubber pads (49) installed on the limiting plate (48); the clamping mechanism (45) includes placement disc (451), helical disc (452) rotationally fitted at the bottom of the placement disc (451), fixed turntable (453) arranged at the bottom of the helical disc (452), damping seat (455) installed on the top of the placement disc (451) and several temperature control devices (454), the damping seat (455), the placement disc (451) and the helical disc (452) are on the same center line; the temperature control device (454) includes fan (11), several heating pipes (12) arranged on the blowing side of the fan (11), several upper inclined plates (13) and lower inclined plates (14) located on the other side of the several heating pipes (12), the several upper inclined plates (13) and lower inclined plates (14) are rotationally fitted with the fan (11) and are rotationally driven by the drive assembly (15) located on both sides of the fan (11), the upper inclined plates (13) and lower inclined plates (14) are symmetrically arranged; the damping seat (455) includes concave-convex ring (71), air bag (72) arranged in the concave groove of the concave-convex ring (71) and arc-shaped block (73) located in the convex groove of the concave-convex ring (71); the placement disc (451) is arrayed with moving grooves (21), and each of the moving grooves (21) is slidingly fitted with a clamping block (22); the helical disc (452) is provided with helical grooves (51), and the helical grooves (51) are movably clamped with the clamping blocks (22); the clamping block (22) is internally provided with several spring dampers (221), and the several spring dampers (221) can buffer and dampen the clamping block (22).

2. A pulley impact strength tester according to claim 1, wherein: The fixing frame (35) comprises a partition block (351), a threaded rod (352) on the partition block (351) and a nut (353) for screwing with both ends of the threaded rod (352).

3. A belt wheel impact strength measuring instrument according to claim 1, characterized in that: The counterweight (36) comprises a slot (361), a through hole (362) and an L-shaped hook (363), the slot (361) and the through hole (362) are arranged on the counterweight (36), the diameter of the through hole (362) is larger than that of the threaded rod (352), and the L-shaped hook (363) is arranged at one end of the counterweight (36).

4. The belt wheel impact strength measuring instrument according to claim 1, characterized in that: The motor group is arranged on the measuring instrument body (1) and is in sliding fit with the sliding groove in the body, can move synchronously on the measuring instrument body (1) along with the movement of the clamping mechanism (45) and is driven through the control box (2).

5. A pulley impact strength tester according to claim 1, wherein: The driving assembly (15) comprises a driving gear (151), a rack (152) arranged on one side of the driving gear (151), a limiting frame (153) in sliding fit with both ends of the rack (152) and two driven gears (154) arranged on the other side of the rack (152).

Images