Fine grinding and polishing hoisting device for crankshaft production

Abstract

The utility model discloses a fine grinding and polishing hoisting device for crankshaft production, which comprises a support frame and a motor seat, the motor seat is mounted at the center of the top end of the support frame, support arms are symmetrically mounted at the top end of the support frame on one side of the motor seat, and a sliding table is arranged in the support frame below the motor seat. A rotating disc is arranged at the top end of the sliding table, a connecting box is installed at the top end of the rotating disc, a rotating shaft is arranged on the outer wall of the connecting box and extends into the connecting box, a clamping base is installed at the end, away from the connecting box, of the rotating shaft, and a clamping motor is installed on the outer wall of the clamping base. According to the crankshaft hoisting device, the height of a crankshaft can be conveniently controlled and adjusted, the hoisting device can conveniently and rotatably clamp the crankshaft, different positions of the crankshaft can be conveniently ground and polished, and the stability and the rotating flexibility of the crankshaft during grinding and polishing are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting devices, in particular to a hoisting device used for fine grinding and polishing of crankshaft production. Background Art

[0002] The crankshaft is the most important component in the engine. It bears the force transmitted from the connecting rod and converts it into torque, which is output through the crankshaft and drives other accessories on the engine. The crankshaft is subjected to the combined effects of the centrifugal force of the rotating mass, the periodically changing gas inertia force and the reciprocating inertia force, which makes the crankshaft subject to bending and torsional loads. Therefore, the crankshaft is required to have sufficient strength and rigidity, and the journal surface must be wear-resistant, work evenly and have good balance.

[0003] For example, a hoisting device for fine grinding and polishing of crankshaft production disclosed in the authorization announcement number CN220131710U belongs to the field of crankshaft processing technology, and includes two vertical beams, the upper surfaces of the two vertical beams are fixedly connected to a horizontal beam, the upper surfaces of the horizontal beams are fixedly connected to two vertical plates, the side surfaces of the two vertical plates close to each other are fixedly inlaid with bearings, and the inner rings of the two bearings are fixedly connected to a winding roller;

[0004] Although the outside of the winding roller is wound with a steel cable, the cooperation of the vertical plate, the bearing, the winding roller, the steel cable, the forward and reverse rotating motor, the support plate, the first slide groove, the first slider, the electric telescopic rod and the crankshaft limit plate can not only facilitate the staff to hoist the crankshaft, but also facilitate the staff to fix crankshafts of different sizes, thereby greatly increasing the practicality of the equipment. The cooperation of the second slide groove, the second slider and the anti-skid layer can not only make the crankshaft limit plate more stable, but also make the crankshaft more stable;

[0005] However, the problem that the existing lifting device is not conducive to convenient height control and adjustment of the crankshaft during use, is not conducive to convenient rotation clamping of the lifting device, is not conducive to grinding and polishing different positions of the crankshaft, and affects the stability and rotation flexibility of the crankshaft during grinding and polishing. Utility Model Content

[0006] The purpose of the utility model is to provide a hoisting device for fine grinding and polishing of crankshaft production, so as to solve the problems proposed in the above background technology that the hoisting device is not convenient for convenient height control and adjustment of the crankshaft, is not convenient for convenient rotation clamping of the hoisting device, is not convenient for grinding and polishing different positions of the crankshaft, and affects the stability and rotation flexibility of the crankshaft during grinding and polishing.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hoisting device for fine grinding and polishing of crankshaft production, comprising a support frame and a motor seat, the motor seat is installed at the center position of the top end of the support frame, the top end of the support frame on one side of the motor seat is symmetrically installed with a support arm, a sliding table is arranged inside the support frame below the motor seat, a rotating disk is arranged at the top end of the sliding table, a connecting box is installed at the top end of the rotating disk, a rotating shaft is arranged on the outer wall of the connecting box, and the rotating shaft extends to the inside of the connecting box, a clamping seat is installed at the end of the rotating shaft away from the connecting box, and the clamping seat A clamping motor is installed on the outer wall of the seat, and a driving half-gear arm is installed at the output end of the clamping motor. A driven shaft is movably installed inside the clamping seat on one side of the driving half-gear arm, and the surface of the driven shaft is covered with the driven half-gear arm, and the driven half-gear arm and the driving half-gear arm are meshed with each other. An upper connecting shaft is symmetrically installed inside the clamping seat below the driven shaft, and the surface of the upper connecting shaft is covered with a limiting arm, and a clamping arc plate is provided at one end of the limiting arm away from the upper connecting shaft, and a lower connecting shaft is installed at one end of the clamping arc plate close to the limiting arm, and the clamping arc plate is movably connected to the limiting arm through the lower connecting shaft.

[0008] Preferably, the top ends of the clamping arc plates are all equipped with linkage shafts, one group of clamping arc plates are movably connected to the active half-gear arm through the linkage shaft, and the other group of clamping arc plates are movably connected to the driven half-gear arm through the linkage shaft.

[0009] Preferably, threaded rods are symmetrically arranged inside the support frame on one side of the sliding platform, and threaded blocks are mounted on the surfaces of the threaded rods. The threaded rods are threadedly connected to the threaded blocks, and the threaded blocks are fixedly connected to the sliding platform.

[0010] Preferably, slide rails are symmetrically installed inside the support frame on one side of the threaded rod, sliding blocks are installed on the outer wall of the sliding platform on one side of the slide rails, and the slide rails are slidably connected to the sliding blocks.

[0011] Preferably, a first motor is installed at the top of the motor seat, a sprocket assembly is installed at the output end of the first motor, a connecting rod is provided at the top of the support frame below the motor seat, the connecting rod is movably connected to the support arm, and the sprocket assembly extends to the surface of the connecting rod.

[0012] Preferably, the top end of the threaded rod is installed with a first bevel gear, the surface of the connecting rod on one side of the first bevel gear is fitted with a second bevel gear, and the first bevel gear is meshed with the second bevel gear.

[0013] Preferably, a servo motor is installed inside the sliding table, the output end of the servo motor is connected to the rotating disk, a stepper motor is installed on the outer wall of the connecting box, a worm is installed inside the connecting box on one side of the stepper motor, and the output end of the stepper motor is connected to the worm, a worm wheel is mounted on the surface of the rotating shaft on one side of the worm, and the worm and the worm wheel are meshed with each other.

[0014] Preferably, a control panel is installed on the outer wall of the sliding table, and the output end of the control panel is electrically connected to the input ends of the first motor, the servo motor, the clamping motor and the stepping motor.

[0015] Compared with the prior art, the beneficial effects of the utility model are: the lifting device not only realizes convenient height control and adjustment of the crankshaft, but also facilitates convenient rotation clamping of the lifting device, facilitates grinding and polishing of different positions of the crankshaft, and improves the stability and rotation flexibility of the crankshaft during grinding and polishing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the sliding platform of the utility model;

[0018] Figure 3 This is a front view structural schematic diagram of the utility model;

[0019] Figure 4 This is a schematic diagram of the front cross-sectional structure of the support frame of the utility model;

[0020] Figure 5 It is a three-dimensional enlarged structural schematic diagram of the clamping seat of the utility model;

[0021] Figure 6 It is a schematic diagram of an enlarged front cross-sectional structure of a connection box of the utility model.

[0022] In the figure: 1. support frame; 2. motor seat; 3. support arm; 4. sliding table; 5. rotating disk; 6. clamping seat; 7. threaded rod; 8. threaded block; 9. slide rail; 10. slider; 11. first bevel gear; 12. first motor; 13. sprocket assembly; 14. connecting rod; 15. connecting box; 16. servo motor; 17. clamping motor; 18. active half gear arm; 19. driven shaft; 20. driven half gear arm; 21. clamping arc plate; 22. limit arm; 23. lower connecting shaft; 24. upper connecting shaft; 25. linkage shaft; 26. stepping motor; 27. worm; 28. worm wheel; 29. ​​rotating shaft; 30. second bevel gear; 31. control panel. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-6The utility model provides an embodiment: a hoisting device for fine grinding and polishing of crankshaft production, comprising a support frame 1 and a motor seat 2, the motor seat 2 is installed at the center position of the top of the support frame 1, and a support arm 3 is symmetrically installed at the top of the support frame 1 on one side of the motor seat 2, a sliding table 4 is arranged inside the support frame 1 below the motor seat 2, a rotating disk 5 is arranged at the top of the sliding table 4, a connecting box 15 is installed at the top of the rotating disk 5, a rotating shaft 29 is arranged on the outer wall of the connecting box 15, and the rotating shaft 29 extends to the inside of the connecting box 15, and a clamping seat 6 is installed at the end of the rotating shaft 29 away from the connecting box 15, and a clamping seat 6 is installed on the outer wall of the clamping seat 6 There is a clamping motor 17, which plays the role of power output. The output end of the clamping motor 17 is installed with an active half-gear arm 18, and a driven shaft 19 is movably installed inside the clamping seat 6 on one side of the active half-gear arm 18. The surface of the driven shaft 19 is covered with a driven half-gear arm 20, and the driven half-gear arm 20 and the active half-gear arm 18 are meshed with each other. An upper connecting shaft 24 is symmetrically installed inside the clamping seat 6 below the driven shaft 19, and the surface of the upper connecting shaft 24 is covered with a limit arm 22. The end of the limit arm 22 away from the upper connecting shaft 24 is provided with a clamping arc plate 21, and the end of the clamping arc plate 21 close to the limit arm 22 is provided with a lower connecting shaft 2 3, and the clamping arc plate 21 is movably connected with the limit arm 22 through the lower connecting shaft 23, and the top of the clamping arc plate 21 is installed with a linkage shaft 25, one group of the clamping arc plates 21 is movably connected with the active half gear arm 18 through the linkage shaft 25, and the other group of the clamping arc plates 21 is movably connected with the driven half gear arm 20 through the linkage shaft 25, and the support frame 1 on one side of the sliding table 4 is symmetrically provided with threaded rods 7, and the surfaces of the threaded rods 7 are all covered with threaded blocks 8, and the threaded rods 7 are all threadedly connected with the threaded blocks 8, and the threaded blocks 8 are all fixedly connected with the sliding table 4, and the support frame 1 on one side of the threaded rod 7 is symmetrically installed with slide rails 9, and the sliding table 4 on one side of the slide rails 9 Slide blocks 10 are installed on the outer walls, and the slide rails 9 are slidably connected to the slide blocks 10. A first motor 12 is installed on the top of the motor seat 2, and the first motor 12 plays a role in power output. A sprocket assembly 13 is installed on the output end of the first motor 12. A connecting rod 14 is provided on the top of the support frame 1 below the motor seat 2, and the connecting rod 14 is movably connected to the support arm 3, and the sprocket assembly 13 extends to the surface of the connecting rod 14. A first bevel gear 11 is installed on the top of the threaded rod 7, and a second bevel gear 30 is mounted on the surface of the connecting rod 14 on one side of the first bevel gear 11, and the first bevel gear 11 is meshed with the second bevel gear 30.

[0025] When in use, an external power supply is used. First, the crankshaft is placed between two groups of clamping arc plates 21. The clamping motor 17 is turned on by operating the control panel 31. Under the support of the clamping seat 6, the clamping motor 17 drives the active semi-gear arm 18 to rotate. Under the meshing action of the active semi-gear arm 18 and the driven semi-gear arm 20, and under the movable support of the driven shaft 19, the active semi-gear arm 18 drives the driven semi-gear arm 20 to rotate. The active semi-gear arm 18 and the driven semi-gear arm 20 drive the clamping arc plate 21 to rotate through the linkage shaft 25. The two groups of limiting arms 22 limit the clamping arc plate 21 through the lower connecting shaft 23 to facilitate the clamping arc plate 21 to clamp and fix the crankshaft, so as to prevent shaking when the crankshaft is polished. The first motor 12 is turned on by operating the control panel 31. The first motor 12 drives the sprocket assembly 13 to move, and the sprocket assembly 13 drives the connecting rod 14 to rotate. The second bevel gear 30 is driven to rotate by the connecting rod 14. Under the meshing action of the second bevel gear 30 and the first bevel gear 11, the first bevel gear 11 is driven to rotate by the second bevel gear 30. The threaded rod 7 is driven to rotate by the first bevel gear 11. Under the thread cooperation of the threaded rod 7 and the threaded block 8, the threaded block 8 moves on the surface of the threaded rod 7. Under the sliding support of the slide rail 9 and the slider 10, the sliding table 4 is driven by the threaded block 8 to adjust its height. The sliding table 4 drives the rotating disk 5, the connecting box 15, the rotating shaft 29, and the clamping seat 6 to adjust their height. The clamping seat 6 drives the crankshaft to adjust its height through two sets of clamping arc plates 21, so as to facilitate the adaptation of grinding and polishing equipment of different heights, realize the convenient height control and adjustment of the crankshaft by the hoisting device, facilitate the clamping and fixing of the crankshaft, improve the stability of the crankshaft during grinding and polishing, and improve the convenience of control and adjustment of the hoisting device.

[0026] A servo motor 16 is installed inside the sliding table 4, and the servo motor 16 plays a role of power output. The output end of the servo motor 16 is connected to the rotating disk 5. A stepper motor 26 is installed on the outer wall of the connecting box 15, and the stepper motor 26 plays a role of power output. A worm 27 is installed inside the connecting box 15 on one side of the stepper motor 26, and the output end of the stepper motor 26 is connected to the worm 27. A worm gear 28 is mounted on the surface of a rotating shaft 29 on one side of the worm 27, and the worm 27 and the worm gear 28 are meshed with each other. A control panel 31 is installed on the outer wall of the sliding table 4, and the output end of the control panel 31 is electrically connected to the input end of the first motor 12, the servo motor 16, the clamping motor 17, and the stepper motor 26;

[0027] When in use, the servo motor 16 is turned on by operating the control panel 31, and the servo motor 16 drives the rotating disk 5 to rotate, and the rotating disk 5 drives the connecting box 15 to rotate, and the connecting box 15 drives the clamping seat 6 to rotate through the rotating shaft 29, and the clamping seat 6 drives the clamping arc plate 21 to rotate, so as to facilitate the clamping arc plate 21 to clamp the crankshaft at different positions, and the stepping motor 26 is turned on by operating the control panel 31, and the stepping motor 26 drives the worm 27 to rotate, and under the meshing action of the worm 27 and the worm wheel 28, the worm 27 drives the worm wheel 28 to rotate, and the worm wheel 28 drives the rotating shaft 29 to rotate, and the rotating shaft 29 drives the clamping seat 6 to rotate, and the clamping seat 6 drives the clamping arc plate 21 to rotate, and the clamping arc plate 21 drives the crankshaft to flip up and down, so as to facilitate grinding and polishing of different positions of the crankshaft, thereby realizing convenient rotary clamping of the lifting device, facilitating grinding and polishing of different positions of the crankshaft, and improving the rotation flexibility of the lifting device.

[0028] Working principle: When in use, an external power source is connected, and the crankshaft is first placed between the two sets of clamping arc plates 21, and the clamping motor 17 drives the active half gear arm 18 to rotate. Under the meshing action of the active half gear arm 18 and the driven half gear arm 20, the active half gear arm 18 drives the driven half gear arm 20 to rotate, and the active half gear arm 18 and the driven half gear arm 20 drive the clamping arc plate 21 to rotate through the linkage shaft 25, and the two sets of limit arms 22 clamp the clamping arc plate 21 through the lower connecting shaft 23. The limit support is arranged to facilitate the clamping arc plate 21 to clamp and fix the crankshaft to prevent shaking during grinding and polishing of the crankshaft. The first motor 12 drives the sprocket assembly 13 to move, and the sprocket assembly 13 drives the connecting rod 14 to rotate, and the connecting rod 14 drives the second bevel gear 30 to rotate. Under the meshing action of the second bevel gear 30 and the first bevel gear 11, the second bevel gear 30 drives the first bevel gear 11 to rotate, and the first bevel gear 11 drives the threaded rod 7 to rotate, and the threaded block 8 moves on the surface of the threaded rod 7, and the threaded block 8 drives the sliding table 4 to adjust the height, and the sliding table 4 drives the rotating disk 5, the connecting box 15, the rotating shaft 29, and the clamping seat 6 to adjust the height, and the clamping seat 6 drives the crankshaft to adjust the height through two sets of clamping arc plates 21 to facilitate adaptation to grinding and polishing equipment of different heights, and the servo motor 16 drives the rotating disk 5 to rotate, and the rotating disk 5 drives the connecting box 15 to rotate, and the connecting box 15 drives the clamping seat 6 to rotate through the rotating shaft 29. The clamping seat 6 drives the clamping arc plate 21 to rotate, so as to facilitate the clamping arc plate 21 to clamp the crankshaft at different positions. The stepping motor 26 drives the worm 27 to rotate, and the worm 27 drives the worm wheel 28 to rotate, and the worm wheel 28 drives the rotating shaft 29 to rotate, and the rotating shaft 29 drives the clamping seat 6 to rotate, and the clamping seat 6 drives the clamping arc plate 21 to rotate, and the clamping arc plate 21 drives the crankshaft to flip up and down, so as to facilitate the grinding and polishing of different positions of the crankshaft, so as to complete the use of the lifting device.

Claims

1. A hoisting device for fine grinding and polishing of crankshaft production, comprising a support frame (1) and a motor base (2), characterized in that: A motor seat (2) is installed at the center position of the top of the support frame (1), and a support arm (3) is symmetrically installed at the top of the support frame (1) on one side of the motor seat (2). A sliding table (4) is arranged inside the support frame (1) below the motor seat (2), and a rotating disk (5) is arranged at the top of the sliding table (4). A connecting box (15) is installed at the top of the rotating disk (5). A rotating shaft (29) is arranged on the outer wall of the connecting box (15), and the rotating shaft (29) extends into the interior of the connecting box (15). A clamping seat (6) is installed at one end of the rotating shaft (29) away from the connecting box (15), and a clamping motor (17) is installed on the outer wall of the clamping seat (6). An active half gear is installed at the output end of the clamping motor (17). An arm (18) is provided, a driven shaft (19) is movably mounted inside a clamping seat (6) on one side of the active half-gear arm (18), a driven half-gear arm (20) is mounted on the surface of the driven shaft (19), and the driven half-gear arm (20) and the active half-gear arm (18) are meshed with each other, an upper connecting shaft (24) is symmetrically mounted inside the clamping seat (6) below the driven shaft (19), a limiting arm (22) is mounted on the surface of the upper connecting shaft (24), a clamping arc plate (21) is arranged at one end of the limiting arm (22) away from the upper connecting shaft (24), a lower connecting shaft (23) is mounted on one end of the clamping arc plate (21) close to the limiting arm (22), and the clamping arc plate (21) is movably connected to the limiting arm (22) via the lower connecting shaft (23).

2. The hoisting device for fine grinding and polishing of crankshaft production according to claim 1 is characterized in that: The top ends of the clamping arc plates (21) are all provided with linkage shafts (25); one group of the clamping arc plates (21) is movably connected to the driving half gear arm (18) via the linkage shafts (25); and the other group of the clamping arc plates (21) is movably connected to the driven half gear arm (20) via the linkage shafts (25).

3. The hoisting device for fine grinding and polishing of crankshaft production according to claim 1 is characterized in that: Threaded rods (7) are symmetrically arranged inside the support frame (1) on one side of the sliding platform (4), and the surfaces of the threaded rods (7) are all fitted with threaded blocks (8), and the threaded rods (7) are all threadedly connected to the threaded blocks (8), and the threaded blocks (8) are all fixedly connected to the sliding platform (4).

4. The hoisting device for fine grinding and polishing of crankshaft production according to claim 3 is characterized in that: Slide rails (9) are symmetrically installed inside the support frame (1) on one side of the threaded rod (7), and sliding blocks (10) are installed on the outer wall of the sliding platform (4) on one side of the slide rails (9), and the slide rails (9) are slidably connected to the sliding blocks (10).

5. The hoisting device for fine grinding and polishing of crankshaft production according to claim 1 is characterized in that: A first motor (12) is installed at the top of the motor seat (2), a sprocket assembly (13) is installed at the output end of the first motor (12), a connecting rod (14) is provided at the top of the support frame (1) below the motor seat (2), and the connecting rod (14) is movably connected to the support arm (3), and the sprocket assembly (13) extends to the surface of the connecting rod (14).

6. The hoisting device for fine grinding and polishing of crankshaft production according to claim 3 is characterized in that: The top end of each of the threaded rods (7) is provided with a first bevel gear (11), the surface of each of the connecting rods (14) on one side of the first bevel gear (11) is provided with a second bevel gear (30), and the first bevel gear (11) is meshed with the second bevel gear (30).

7. The hoisting device for fine grinding and polishing of crankshaft production according to claim 1 is characterized in that: A servo motor (16) is installed inside the sliding table (4), and the output end of the servo motor (16) is connected to the rotating disk (5). A stepper motor (26) is installed on the outer wall of the connecting box (15). A worm (27) is installed inside the connecting box (15) on one side of the stepper motor (26), and the output end of the stepper motor (26) is connected to the worm (27). A worm wheel (28) is mounted on the surface of a rotating shaft (29) on one side of the worm (27), and the worm (27) and the worm wheel (28) are meshed with each other.

8. The hoisting device for fine grinding and polishing of crankshaft production according to claim 1 is characterized in that: A control panel (31) is installed on the outer wall of the sliding platform (4), and the output end of the control panel (31) is electrically connected to the input ends of the first motor (12), the servo motor (16), the clamping motor (17), and the stepping motor (26).

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