Solid shaft straightening equipment
By designing limit components and adaptive adjustment devices, the problem of poor adaptability of solid shaft straightening equipment is solved, enabling rapid adaptation to straightening operations of solid shafts of different specifications.
Patent Information
- Application Number
- CN202422274461.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-09-18
AI Technical Summary
Existing solid shaft straightening equipment requires readjustment when adapting to solid shafts of different specifications, resulting in cumbersome operation and making it impossible to quickly install according to the actual situation.
A solid shaft straightening device including a limiting component and an adaptive adjustment device was designed. The device uses a hydraulic cylinder to drive a piston rod to move a slide plate and a slide bar to adjust the gap between the upper and lower straightening rollers. Combined with a servo motor and a trapezoidal lead screw, the device achieves adaptive adjustment of the solid shaft.
It improves the adaptability of solid shafts to straightening equipment, simplifies the adjustment process, and enables rapid adaptation to straightening of solid shafts of different specifications.
Smart Images

Figure CN223531137U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of straightening equipment, specifically a solid shaft straightening device. Background Technology
[0002] Industrial equipment relies heavily on bearings, which come in various types, such as hollow and solid shafts. Structurally, shafts can be broadly categorized into hollow and solid shafts. With the same material and cross-sectional area, hollow shafts have stronger torsional resistance and can withstand larger external torques than solid shafts. Under the same external torque, hollow shafts use less material than solid shafts. This is also evident in the stress distribution of a circular cross-section. While the maximum shear stress on the circumference of a solid shaft approaches the allowable shear stress, the shear stress in the middle section is still far from the allowable shear stress, indicating that most of the material in the middle is not fully utilized.
[0003] Chinese Patent No. CN202322669977.X discloses a straightening device for machining motor shafts, including a worktable. Fixed seats are fixedly connected to both sides of the bottom of the worktable. Mounting seats are fixedly connected to opposite sides of the two fixed seats. A motor is fixedly connected inside the mounting seats. A threaded rod is fixedly connected to the output end of the motor. A threaded sleeve is threadedly connected to the outside of the threaded rod. Positioning blocks are fixedly connected to both sides of the threaded sleeve. One end of a movable support rod is rotatably connected inside each of the two positioning blocks. The other ends of the two movable support rods are rotatably connected inside a positioning block. A slider is fixedly connected to the upper part of the positioning block, and a positioning frame is fixedly connected to the upper part of the slider.
[0004] As can be seen from the above, the combination of multiple structures such as positioning block one, movable support rod and positioning block two effectively fixes motor shafts of different sizes, which helps to maintain the stability of the shaft and prevents accidental movement or twisting during the straightening process, ensuring the precision and accuracy of the straightening. However, this solution also has the following shortcomings: when straightening solid shafts, it is often necessary to straighten solid shafts of different specifications. When the solid shaft is not compatible with the straightening equipment, it needs to be readjusted, which makes the operation more cumbersome and makes it impossible to install and adjust according to the actual situation.
[0005] Therefore, a solid shaft straightening device is proposed to address the above problems. Utility Model Content
[0006] To address the shortcomings of existing technologies and the problem of needing to readjust when solid shafts and straightening equipment are incompatible, this utility model proposes a solid shaft straightening device.
[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: The solid shaft straightening device of this utility model includes a limiting component and an adaptive adjustment device; the adaptive adjustment device is equipped with a base, a hydraulic cylinder is fixedly installed on the top of the base, a piston rod is movably installed on the output end of the hydraulic cylinder, a slide plate is fixedly installed on one end of the piston rod, an upper straightening roller is movably installed on one side of the slide plate, and a matching slide rod is movably installed on the back side of the slide plate.
[0008] Preferably, the limiting component is equipped with a fixing plate, a base is fixedly installed on one side of the fixing plate, two limiting blocks are movably installed on one side of the fixing plate, and a connecting plate with a movable groove is movably installed on one side of the two limiting blocks.
[0009] Preferably, a support plate is fixedly installed on one side of the fixed plate, a connecting plate is movably installed on the inner wall of the support plate, a push rod is fixedly installed on one side of the connecting plate, and the other end of the push rod is movably installed at the output end of the cylinder.
[0010] Preferably, a first servo motor is fixedly installed on one side of the base, a lower straightening roller is fixedly installed at the output end of the first servo motor, and an mounting plate is fixedly installed on one side of the base.
[0011] Preferably, a support base is fixedly installed on one side of the back of the mounting plate, a second servo motor is fixedly installed on the top of the support base, a trapezoidal lead screw is fixedly installed at the output end of the second servo motor, a trapezoidal nut is threaded through and connected to the trapezoidal lead screw, and a connecting rod is fixedly installed on one side of the trapezoidal nut.
[0012] Preferably, a movable frame is fixedly installed on one side of the connecting rod, the movable frame is movably installed with the mounting plate, a connecting block is fixedly installed at the bottom of the movable frame, several movable rollers are movably installed on one side of the connecting block, and several fixed rollers are movably installed on one side of the mounting plate.
[0013] The advantages of this utility model are:
[0014] This invention, through the structural design of the adaptive adjustment device, uses a hydraulic cylinder to drive a piston rod. One end of the piston rod drives a sliding plate to move up and down on a sliding rod, thereby adjusting the gap between the upper and lower straightening rollers. When the first servo motor is driven, the lower straightening roller drives the solid shaft to move to one side, allowing one end of the solid shaft to move between the movable roller and the fixed roller. This achieves the function of adaptive movement, solves the problem of needing to readjust when the solid shaft cannot be adapted to the straightening equipment, and improves the adaptability in use. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is an exploded view of the overall structure of this utility model;
[0018] Figure 3 This is an exploded view of the adaptive adjustment device structure of this utility model;
[0019] Figure 4 This utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle;
[0020] Figure 5 This is an exploded view of the limiting component structure of this utility model.
[0021] In the diagram: 1. Limiting component; 2. Adaptive adjustment device; 11. Fixing plate; 12. Limiting block; 13. Support plate; 14. Cylinder; 15. Push rod; 16. Connecting plate; 21. Base; 22. Hydraulic cylinder; 23. Piston rod; 24. Slide rod; 25. Slide plate; 26. Upper straight roller; 27. First servo motor; 28. Lower straight roller; 29. Mounting plate; 31. Support seat; 32. Second servo motor; 33. Trapezoidal lead screw; 34. Trapezoidal nut; 35. Connecting rod; 36. Movable frame; 37. Connecting block; 38. Movable roller; 39. Fixed roller. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0023] Please see Figures 1-5As shown, a solid shaft straightening device includes a limiting component 1 and an adaptation adjustment device 2. The adaptation adjustment device 2 is equipped with a base 21, a hydraulic cylinder 22 is fixedly installed on the top of the base 21, a piston rod 23 is movably installed at the output end of the hydraulic cylinder 22, a slide plate 25 is fixedly installed at one end of the piston rod 23, an upper straightening roller 26 is movably installed on one side of the slide plate 25, and a matching slide rod 24 is movably installed on the back side of the slide plate 25.
[0024] During operation, hydraulic energy is converted into mechanical energy by hydraulic cylinder 22 to drive piston rod 23 to move slide plate 25. When the slide plate 25 moves, it is limited by slide rod 24 to ensure that it moves horizontally, thereby driving the upper straight roller 26 installed on one side of the slide plate 25 to move relative to it.
[0025] Furthermore, the limiting component 1 is equipped with a fixing plate 11, a base 21 is fixedly installed on one side of the fixing plate 11, two limiting blocks 12 are movably installed on one side of the fixing plate 11, and a connecting plate 16 with a movable groove is movably installed on one side of the two limiting blocks 12.
[0026] During operation, the installation of the limiting block 12 on the fixed plate 11 allows the limiting block 12 to move linearly on the fixed plate 11. The movable slot opened in the connecting plate 16 controls it, which is beneficial to limit the solid shaft through the gap between the limiting blocks 12.
[0027] Furthermore, a support plate 13 is fixedly installed on one side of the fixed plate 11, a connecting plate 16 is movably installed on the inner wall of the support plate 13, a push rod 15 is fixedly installed on one side of the connecting plate 16, and the other end of the push rod 15 is movably installed at the output end of the cylinder 14.
[0028] During operation, the connecting plate 16 is controlled by the installation of cylinder 14 and push rod 15, so that the connecting plate 16 moves within the inner wall of support plate 13, thereby controlling the limit block 12 accordingly.
[0029] Furthermore, a first servo motor 27 is fixedly installed on one side of the base 21, a lower straightening roller 28 is fixedly installed at the output end of the first servo motor 27, and an mounting plate 29 is fixedly installed on one side of the base 21.
[0030] During operation, the lower straightening roller 28 and the upper straightening roller 26 work together, and the gap between them is conducive to straightening the solid shaft. At the same time, when the first servo motor 27 is driven, it can drive the solid shaft to move to one side.
[0031] Furthermore, a support base 31 is fixedly installed on one side of the back of the mounting plate 29, a second servo motor 32 is fixedly installed on the top of the support base 31, a trapezoidal lead screw 33 is fixedly installed at the output end of the second servo motor 32, a trapezoidal nut 34 is threaded through and connected to the trapezoidal lead screw 33, and a connecting rod 35 is fixedly installed on one side of the trapezoidal nut 34.
[0032] During operation, the trapezoidal lead screw 33 is rotated by driving the second servo motor 32. The rotational motion of the trapezoidal lead screw 33 cooperates with the trapezoidal nut 34. Under this cooperation, the rotational motion of the trapezoidal lead screw 33 is converted into the linear motion of the trapezoidal nut 34, thereby generating linkage with the connecting rod 35.
[0033] Furthermore, a movable frame 36 is fixedly installed on one side of the connecting rod 35. The movable frame 36 and the mounting plate 29 are movably installed. A connecting block 37 is fixedly installed at the bottom of the movable frame 36. Several movable rollers 38 are movably installed on one side of the connecting block 37. Several fixed rollers 39 are movably installed on one side of the mounting plate 29.
[0034] During operation, the movable frame 36 is driven to move up and down on the mounting plate 29 via the connecting rod 35. The bottom of the movable frame 36 is fixed with a connecting block 37, which facilitates the adjustment of the gap between the movable roller 38 and the fixed roller 39 under the linkage of the connecting block 37.
[0035] Working principle: By placing the solid shaft between the upper straight roller 26 and the lower straight roller 28, the hydraulic cylinder 22 is driven to extend and retract the piston rod 23 on its inner wall. One end of the piston rod 23 drives the slide plate 25 to slide up and down on the slide rod 24. The slide plate 25 adjusts the gap between the upper straight roller 26 and the lower straight roller 28. When the first servo motor 27 is driven, the lower straight roller 28 drives the solid shaft to move to one side, so that one end of the solid shaft moves between the movable roller 38 and the fixed roller 39 for adaptation. When adapting, the second servo motor 32 is driven to rotate the trapezoidal screw 33. With the trapezoidal screw 33 and the trapezoidal nut 34 in threaded engagement, the connecting rod 35 drives the movable frame 36 to linearly rise and fall on the mounting plate 29. At this time, the movement of the movable frame 36 causes the connecting block 37 to move in conjunction. During the movement, the gap between the movable roller 38 and the fixed roller 39 is adjusted to adapt to different solid shafts.
[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A solid shaft straightening device, characterized in that: Includes a limiting component (1) and an adaptation adjustment device (2); the adaptation adjustment device (2) is equipped with a base (21), a hydraulic cylinder (22) is fixedly installed on the top of the base (21), a piston rod (23) is movably installed at the output end of the hydraulic cylinder (22), a slide plate (25) is fixedly installed at one end of the piston rod (23), an upper straight roller (26) is movably installed on one side of the slide plate (25), a matching slide rod (24) is movably installed on the back side of the slide plate (25), a first servo motor (27) is fixedly installed on one side of the base (21), a lower straight roller (28) is fixedly installed at the output end of the first servo motor (27), and an mounting plate (29) is fixedly installed on one side of the base (21). A support base (31) is fixedly installed on one side of the back of the mounting plate (29). A second servo motor (32) is fixedly installed on the top of the support base (31). A trapezoidal lead screw (33) is fixedly installed at the output end of the second servo motor (32). A trapezoidal nut (34) is threaded through and connected to the trapezoidal lead screw (33). A connecting rod (35) is fixedly installed on one side of the trapezoidal nut (34). A movable frame (36) is fixedly installed on one side of the connecting rod (35). The movable frame (36) and the mounting plate (29) are movably installed. A connecting block (37) is fixedly installed at the bottom of the movable frame (36). Several movable rollers (38) are movably installed on one side of the connecting block (37). Several fixed rollers (39) are movably installed on one side of the mounting plate (29).
2. The solid shaft straightening device according to claim 1, characterized in that: The limiting component (1) is equipped with a fixing plate (11), a base (21) is fixedly installed on one side of the fixing plate (11), and two limiting blocks (12) are movably installed on one side of the fixing plate (11). A connecting plate (16) with a movable groove is movably installed on one side of the two limiting blocks (12).
3. The solid shaft straightening device according to claim 2, characterized in that: A support plate (13) is fixedly installed on one side of the fixed plate (11), and a connecting plate (16) is movably installed on the inner wall of the support plate (13). A push rod (15) is fixedly installed on one side of the connecting plate (16), and the other end of the push rod (15) is movably installed at the output end of the cylinder (14).
Citation Information
Patent Citations
A straightening device for motor shaft processing
CN220992404U