High-precision adjustable eccentric shaft structure

Abstract

The utility model discloses a high-precision adjustable eccentric shaft structure, which relates to the field of eccentric shafts, and comprises a main mandrel, the side end of the main mandrel is connected with a fixed frame, an adjusting threaded rod is arranged in the fixed frame, and the outer end of the adjusting threaded rod is in threaded connection with a moving block. An adjusting threaded rod and a moving block are arranged, a servo motor is started to enable an eccentric shaft to move, so that the position of the eccentric shaft can be adjusted, the device can be used in various different application scenes and under the eccentric movement requirement, and the flexibility and applicability of the device are greatly improved; the two-way threaded rod is rotated, the clamping plate can clamp and fix the moving block, so that the position of the eccentric shaft is fixed, and the distance between the eccentric shaft and the center shaft of the main mandrel can be accurately adjusted by arranging the laser range finder and the controller.

Description

Technical Field

[0001] The utility model relates to the technical field of eccentric shafts, in particular to a high-precision adjustable eccentric shaft structure. Background Art

[0002] The eccentric shaft is a special shaft part, which is characterized by the fact that the outer circle and the axis of the outer circle are parallel but not overlapped, that is, the center is not located at the center of the axis. This design makes the eccentric shaft play an important role in mechanical transmission. Its unique design and function make it widely used in various mechanical equipment.

[0003] However, the existing eccentric shafts are generally connected between the main shaft and the eccentric shaft in a fixed manner, and the distance between the two is fixed, and the eccentric distance cannot be adjusted according to actual needs. This makes the eccentric shaft inflexible when dealing with different working conditions or changes. Since it cannot be adjusted, the eccentric shaft may not be able to adapt to a variety of different application scenarios and eccentric motion requirements, and its adaptability is poor.

[0004] In order to solve this technical problem, the utility model proposes a high-precision adjustable eccentric shaft structure. Utility Model Content

[0005] The main purpose of the utility model is to provide a high-precision adjustable eccentric shaft structure, which can effectively solve the problems mentioned in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A high-precision adjustable eccentric shaft structure comprises a main shaft, a fixed frame is connected to the side end of the main shaft, an adjusting threaded rod is arranged in the fixed frame, the outer end of the adjusting threaded rod is threadedly connected to a moving block, the side end of the moving block is connected to an eccentric shaft, the upper end of the adjusting threaded rod is connected to a turbine, the upper end of the fixed frame is connected to a protective box, a vortex rod is rotatably connected in the protective box, a servo motor is arranged at the side end of the protective box, a clamping plate is slidably connected in the fixed frame, the side end of the clamping plate is connected to a threaded ring, and the threaded ring is threadedly connected to a bidirectional threaded rod.

[0008] Preferably, the outer end of the adjusting threaded rod is connected with a rotating ring, the rotating ring is rotatably connected in the fixed frame, and the turbine is located at the upper end of the rotating ring.

[0009] Preferably, the turbine is located in the protective box, the turbine is meshed with a worm gear, the side end of the worm gear can be connected to the driving end of the servo motor, and the clamping plates are located at both ends of the moving block.

[0010] Preferably, grooves are provided on both sides of the moving block, and a convex strip is provided on the inner side of the clamping plate, which can be connected to the groove of the moving block, and thread grooves are provided at both ends of the bidirectional threaded rod, and the thread directions of the two thread grooves are opposite.

[0011] Preferably, sliders are connected to both sides of the moving block, circular holes are opened in the sliders, and track rods are connected to the fixing frame, and the track rods are slidably connected in the circular holes opened in the sliders.

[0012] Preferably, a fixing plate is connected to the fixing frame, a round hole is opened in the fixing plate, the bidirectional threaded rod is rotatably connected in the round hole opened in the fixing plate, a rotating head is connected to the side end of the bidirectional threaded rod, and the rotating head is located at the outer end of the fixing plate.

[0013] Preferably, a laser rangefinder is provided in the protection box, and the laser rangefinder projects light onto the upper surface of the moving block. A connecting frame is provided at the side end of the protection box, and the servo motor is clamped in the connecting frame.

[0014] Preferably, a controller is connected to the side end of the protection box, the laser rangefinder is connected to the controller via a wire, and a signal transmission line is provided at the side end of the controller, and the signal transmission line can be connected to a servo motor.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] In the utility model, an adjusting threaded rod and a moving block are provided, and the moving block can drive the eccentric shaft to move by rotating the worm gear, so that the position of the eccentric shaft can be adjusted, so that the device can be used in a variety of different application scenarios and eccentric motion requirements, which greatly improves the flexibility and applicability of the device. Specifically, the servo motor is clamped in the connecting frame, and then the servo motor is started, which will drive the adjusting threaded rod to rotate through the worm gear and the turbine, thereby acting on the moving block, and will be able to drive the eccentric shaft to move. The device has a simple structure, is easy to operate, and has strong practicality.

[0017] In the utility model, by providing a clamping plate and a bidirectional threaded rod, after the position adjustment of the eccentric shaft is completed, the bidirectional threaded rod can be driven to rotate by the rotating head, so that it will act on the threaded ring, thereby driving the clamping plate to move, so that the two clamping plates can clamp and fix the moving block from both ends, thereby fixing the position of the eccentric shaft to prevent it from moving during operation. It is simple to operate and has a good fixing effect, and can effectively improve the practicability of the device.

[0018] In the utility model, by providing a laser rangefinder and a controller, the laser rangefinder can measure the distance between the moving block and the controller, so as to determine the distance between the eccentric shaft and the main shaft, input the eccentric distance to the controller, and the controller starts the servo motor to drive the eccentric shaft to move. When the value measured by the laser rangefinder reaches the set distance when the moving block reaches the set distance, the controller will stop the servo motor to determine the position of the eccentric shaft, so as to accurately adjust the center axis distance between the eccentric shaft and the main shaft, and the device can adjust the position of the eccentric shaft with high precision. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a high-precision adjustable eccentric shaft structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the side end structure of a high-precision adjustable eccentric shaft structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of an adjusting threaded rod of a high-precision adjustable eccentric shaft structure of the utility model;

[0022] Figure 4 This is a schematic diagram of a fixed frame structure of a high-precision adjustable eccentric shaft structure of the utility model;

[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of a fixed frame of a high-precision adjustable eccentric shaft structure of the utility model;

[0024] Figure 6 The utility model is a schematic diagram of the internal structure of a protective box with a high-precision adjustable eccentric shaft structure.

[0025] In the figure: 1. main spindle; 2. fixed frame; 3. adjusting threaded rod; 4. moving block; 5. eccentric shaft; 6. turbine; 7. protective box; 8. worm rod; 9. servo motor; 10. clamping plate; 11. threaded ring; 12. bidirectional threaded rod; 13. rotating ring; 14. slider; 15. track rod; 16. fixed plate; 17. rotating head; 18. laser rangefinder; 19. connecting frame; 20. controller. DETAILED DESCRIPTION

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

[0027] like Figure 1-6As shown, a high-precision adjustable eccentric shaft structure includes a main shaft 1, a side end of the main shaft 1 is connected to a fixed frame 2, an adjusting threaded rod 3 is arranged in the fixed frame 2, the outer end of the adjusting threaded rod 3 is connected to a rotating ring 13, the rotating ring 13 is rotatably connected in the fixed frame 2, and the rotating ring 13 is used to enable the adjusting threaded rod 3 to rotate stably in the fixed frame 2.

[0028] The outer end of the adjusting threaded rod 3 is threadedly connected to a moving block 4, and sliders 14 are connected on both sides of the moving block 4. A round hole is opened in the slider 14, and a track rod 15 is connected in the fixed frame 2. The track rod 15 is slidably connected in the round hole opened in the slider 14. The track rod 15 and the slider 14 act together to constrain the moving block 4, so that it cannot rotate or tilt, and can only move smoothly along the track rod 15.

[0029] The side end of the moving block 4 is connected to an eccentric shaft 5, and the upper end of the adjusting threaded rod 3 is connected to a turbine 6, which is located at the upper end of the rotating ring 13, and the upper end of the fixed frame 2 is connected to a protective box 7, and the turbine 6 is located in the protective box 7. A vortex rod 8 is rotatably connected in the protective box 7, and the turbine 6 is meshed with the vortex rod 8. A servo motor 9 is provided at the side end of the protective box 7, and the side end of the vortex rod 8 can be connected to the driving end of the servo motor 9, so that starting the servo motor 9 will drive the vortex rod 8 to rotate, and the rotation of the vortex rod 8 will act on the turbine 6, which will be able to drive the adjusting threaded rod 3 to rotate, so that it can act on the moving block 4, and the moving block 4 can drive the eccentric shaft 5 to move under the action of the adjusting threaded rod 3 and the track rod 15, and when the servo motor 9 stops running, the turbine 6 and the vortex rod 8 can achieve self-locking, thereby preventing the adjusting threaded rod 3 from rotating, so that the position of the moving block 4 can be fixed.

[0030] A laser rangefinder 18 is arranged in the protective box 7, and the laser rangefinder 18 shines light on the upper surface of the moving block 4. A connecting frame 19 is arranged on the side end of the protective box 7, and the servo motor 9 is clamped in the connecting frame 19. The servo motor 9 can be removed from the connecting frame 19. After the adjustment of the eccentric shaft 5 is completed, the servo motor 9 is removed to prevent it from being damaged by the rotation of the main shaft 1. A controller 20 is connected to the side end of the protective box 7, and the eccentricity value can be input into the controller 20 through the remote control end. The laser rangefinder 18 and the controller 20 are connected by a wire. A signal transmission line is arranged on the side end of the controller 20, and the information transmission line can be connected to the servo motor 9, so that the value measured by the laser rangefinder 18 can be transmitted to the controller 20. When the value reaches the set value, the controller 20 can stop the operation of the servo motor 9 through the signal transmission line, so that the center axis distance between the eccentric shaft 5 and the main shaft 1 can be accurately adjusted.

[0031] A clamping plate 10 is slidably connected inside the fixed frame 2, and the clamping plate 10 is located at both ends of the moving block 4. A threaded ring 11 is connected to the side end of the clamping plate 10, and a bidirectional threaded rod 12 is threadedly connected inside the threaded ring 11. Thread grooves are provided at both ends of the bidirectional threaded rod 12, and the thread directions of the two thread grooves are opposite, so that the moving directions of the two clamping plates 10 are always opposite.

[0032] A fixing plate 16 is connected to the fixing frame 2, and a circular hole is opened in the fixing plate 16. The bidirectional threaded rod 12 is rotatably connected in the circular hole opened in the fixing plate 16. The fixing plate 16 is used to support the bidirectional threaded rod 12. A rotating head 17 is connected to the side end of the bidirectional threaded rod 12. The rotating head 17 is located at the outer end of the fixing plate 16. The rotating head 17 is used to facilitate the rotation of the bidirectional threaded rod 12. Grooves are opened on both sides of the moving block 4, and a convex strip is arranged on the inner side of the clamping plate 10. The convex strip can be connected with the groove of the moving block 4, so as to improve the clamping and fixing effect of the clamping plate 10 on the moving block 4.

[0033] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A high-precision adjustable eccentric shaft structure, comprising a main shaft (1), characterized in that: The side end of the main spindle (1) is connected to a fixed frame (2), an adjusting threaded rod (3) is arranged in the fixed frame (2), the outer end of the adjusting threaded rod (3) is threadedly connected to a moving block (4), the side end of the moving block (4) is connected to an eccentric shaft (5), the upper end of the adjusting threaded rod (3) is connected to a turbine (6), the upper end of the fixed frame (2) is connected to a protective box (7), a vortex rod (8) is rotatably connected in the protective box (7), a servo motor (9) is arranged at the side end of the protective box (7), a clamping plate (10) is slidably connected in the fixed frame (2), the side end of the clamping plate (10) is connected to a threaded ring (11), and the threaded ring (11) is internally threadedly connected to a bidirectional threaded rod (12).

2. A high-precision adjustable eccentric shaft structure according to claim 1, characterized in that: The outer end of the adjusting threaded rod (3) is connected to a rotating ring (13), the rotating ring (13) is rotatably connected in the fixed frame (2), and the turbine (6) is located at the upper end of the rotating ring (13).

3. The high-precision adjustable eccentric shaft structure according to claim 1, characterized in that: The turbine (6) is located in the protective box (7), the turbine (6) is meshed with a worm rod (8), the side end of the worm rod (8) can be connected to the driving end of a servo motor (9), and the clamping plate (10) is located at both ends of the moving block (4).

4. The high-precision adjustable eccentric shaft structure according to claim 1, characterized in that: Grooves are provided on both sides of the moving block (4), a convex strip is provided on the inner side of the clamping plate (10), and the convex strip can be connected to the groove of the moving block (4), and thread grooves are provided on both ends of the bidirectional threaded rod (12), and the thread directions of the two thread grooves are opposite.

5. The high-precision adjustable eccentric shaft structure according to claim 1, characterized in that: Slide blocks (14) are connected to both sides of the moving block (4), a circular hole is provided in the slide block (14), and a track rod (15) is connected to the fixing frame (2), and the track rod (15) is slidably connected to the circular hole provided in the slide block (14).

6. The high-precision adjustable eccentric shaft structure according to claim 1, characterized in that: The fixing frame (2) is connected to a fixing plate (16), a circular hole is provided in the fixing plate (16), the bidirectional threaded rod (12) is rotatably connected to the circular hole provided in the fixing plate (16), the side end of the bidirectional threaded rod (12) is connected to a rotating head (17), and the rotating head (17) is located at the outer end of the fixing plate (16).

7. The high-precision adjustable eccentric shaft structure according to claim 1, characterized in that: A laser rangefinder (18) is arranged in the protection box (7), and the laser rangefinder (18) projects light onto the upper surface of the moving block (4). A connecting frame (19) is arranged at the side end of the protection box (7), and the servo motor (9) is clamped in the connecting frame (19).

8. The high-precision adjustable eccentric shaft structure according to claim 7, characterized in that: The side end of the protection box (7) is connected to a controller (20), the laser rangefinder (18) and the controller (20) are connected via a wire, and the side end of the controller (20) is provided with a signal transmission line, which can be connected to a servo motor (9).

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