High-precision fine adjustment device for inclined assembly of speed reducer
By designing a fine-tuning device including balance beams, lifting rings, size adjustment plates, large gear nuts and pinions, the problem of insufficient tilt assembly accuracy of the reducer is solved, and high-precision fine-tuning is achieved, reducing assembly difficulty and high-altitude operation risks.
Patent Information
- Application Number
- CN202510438460.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2025-08-15
AI Technical Summary
In the prior art, the inclined assembly accuracy of the reducer is insufficient, resulting in difficulty in assembly and high risk of high-altitude operation.
A fine-tuning device including a balance beam, a lifting ring, a size adjustment plate, a large gear nut, a pinion and a rotating rod is designed to achieve precise lifting and lowering of the lifting ring through the meshing of the pinion and a large gear nut, and combined with the extended hand-rod to transmit torque, high-precision fine-tuning is achieved.
High-precision fine-tuning of the inclined assembly of the reducer is achieved, shortening assembly time and reducing worker working intensity and high-altitude operation risks.
Smart Images
Figure CN120482939A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of rubber and plastic machinery, in particular to a high-precision fine-tuning device for the inclined assembly of a reducer. Background Art
[0002] like Figure 1 As shown in (a), the extrusion reducer and long screw assembly of the extrusion tableting equipment are space-tilted assemblies for high-altitude operation (15° tilted from the horizontal, and the angle between the center line of the equipment is 7°). Figure 2 In the prior art, the clearance between the reducer output shaft inner bore and the long screw shaft diameter is approximately 0.05mm, requiring fine-tuning of the tilt angle with high precision (absolute value <0.015°). The original assembly method involved directly hoisting the reducer's front end lugs with a crane's main hook, then hoisting the rear end lugs with a secondary hook, and adjusting the angle by lifting and lowering. This lack of precision necessitated repeated adjustments, making assembly extremely difficult. Therefore, a high-precision fine-tuning device for reducer tilt assembly was urgently needed to address this issue. Summary of the Invention
[0003] The present invention proposes a high-precision fine-tuning device for the inclined assembly of a reducer, which changes the original assembly method of lifting the rear end lifting ear of the reducer with a crane auxiliary hook and repeatedly lifting and lowering to adjust the angle to achieve assembly. It has the advantages of compact structure, adjustable size, safety and reliability, and high precision.
[0004] The technical solution of the present invention is as follows: a high-precision fine-tuning device for the tilt assembly of a reducer, comprising a balance beam 1, a lifting ring 2, a size adjustment plate 3, a large gear nut 4, a small gear 5, and a rotating rod 6;
[0005] A plurality of adjusting thread bottom holes 8 and a pair of lifting lugs 9 are symmetrically arranged on the balance beam 1; the lifting lugs 9 are connected to the crane;
[0006] The size adjustment plate 3 is fixed to the balance beam 1 by adjusting the threaded bottom hole 8;
[0007] The gear nut 4 and the pinion 5 are both located on the size adjustment plate 3;
[0008] The gear nut 4 includes a large gear and a nut, which are connected; the nut passes through the size adjustment plate 3 and the adjustment thread bottom hole 8, and the nut is provided with an internal thread; the lifting ring 2 is provided with an external thread and connected to the nut;
[0009] The small gear 5 is meshed with the large gear nut 4. The rotation of the small gear 5 drives the large gear nut 4 to rotate, thereby driving the lifting ring 2 to move up and down;
[0010] The bottom of the pinion 5 passes through the size adjustment plate 3 and the adjustment thread bottom hole 8 and is connected to the rotating rod 6.
[0011] Furthermore, the device also includes an extended hand crank 7; the extended hand crank 7 is fixed to the end of the rotating rod 6, and the extended hand crank 7 is rotated to enable the rotating rod 6 to transmit the torque to the pinion 5.
[0012] When the pinion 5 rotates 24°, the suspension ring 2 adjusts the distance by 0.03 mm.
[0013] The size adjustment plate 3 is fixed to different adjustment thread bottom holes 8 on the balance beam 1 to adjust the position.
[0014] There are two size adjustment plates 3 , which are symmetrical about the center of the balance beam 1 .
[0015] The lifting ring 2 is connected to both sides of the reducer through a flexible rope.
[0016] The beneficial effects of the present invention are as follows: a high-precision fine-tuning device for the inclined assembly of a reducer is provided, through which the high-precision inclined angle assembly requirement is ensured, and the assembly time, the workers' working intensity and the risk of high-altitude work are greatly shortened. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 Schematic diagram of a high-precision fine-tuning device for a reducer tilt assembly in use; (a) is a front view; (b) is a top view;
[0018] Figure 2 This is a schematic diagram of the existing method of hoisting the reducer;
[0019] Figure 3 This is a schematic diagram of the structure of a high-precision fine-tuning device for the tilt assembly of a reducer;
[0020] Figure 4 is a schematic diagram of a balance beam;
[0021] Figure 5 This is a detailed diagram of the large gear nut;
[0022] Figure 6 Detailed diagram of the rotating rod;
[0023] Figure 7 This is a detailed diagram of the pinion.
[0024] In the figure: 1-Balance beam; 2-Lifting ring; 3-Size adjustment plate; 4-Big gear nut; 5-Small gear; 6-Rotating rod; 7-Extended hand crank; 8-Adjusting threaded bottom hole; 9-Lifting ear. DETAILED DESCRIPTION
[0025] The invention relates to a high-precision fine-tuning device for the inclined assembly of a reducer, which is composed of a balance beam 1, a lifting ring 2, a size adjustment plate 3, a large gear nut 4, a small gear 5, a rotating rod 6, and an extended hand crank 7. Figure 1 As shown, the usage is as follows Figure 3 shown.
[0026] A plurality of adjusting thread bottom holes 8 and a pair of lifting ears 9 are symmetrically arranged on the balance beam 1 .
[0027] The balance beam 1 is welded from steel plates and profiles, and the ultrasonic flaw detection after welding is qualified. Figure 4 shown.
[0028] The fine-tuning function of the high-precision fine-tuning device for the inclined assembly of the reducer is that the small gear 5 (M2, Z15) rotates to drive the large gear nut 4 (external teeth M2, Z100, internal thread M42*pitch 3) to rotate, thereby driving the lifting ring 2 up and down. The small gear 5 rotates 24°, and the lifting ring 2 fine-tunes the distance by 0.03mm. The specific implementation is as follows Figure 5 As shown, M represents the module and Z represents the number of teeth. To adjust the height, the pinion 5 rotates, which in turn rotates the large gear nut 4. This rotation causes relative torsion between the internal threads of the large gear nut 4 and the external threads of the eye 2, causing the eye 2 to rise or fall.
[0029] In order to avoid high-altitude operation, a rotating extended hand crank 7 is used. The assembly worker manually rotates the rotating rod 6 to transmit the torque to the pinion 5. The specific implementation is as follows: Figure 6 shown.
[0030] The high-precision fine-tuning device for the inclined assembly of the reducer can be used to hoist reducers of different sizes, which can be achieved by adjusting the different adjustment thread bottom holes 8 of the balance beam 1 through the size adjustment plate 3. The specific implementation is as follows: Figure 7 shown.
Claims
1. A high-precision fine-tuning device for the inclined assembly of a reducer, characterized in that: The high-precision fine-tuning device for the inclined assembly of the speed reducer comprises a balance beam (1), a lifting ring (2), a size adjustment plate (3), a large gear nut (4), a small gear (5), a rotating rod (6), and an extended hand crank (7); A plurality of adjusting thread bottom holes (8) and a pair of lifting lugs (9) are symmetrically arranged on the balance beam (1); the lifting lugs (9) are connected to the crane; The size adjustment plate (3) is fixed on the balance beam (1) by adjusting the threaded bottom hole (8); The gear nut (4) and the pinion (5) are both located on the size adjustment plate (3); The gear nut (4) includes a large gear and a nut, which are connected; the nut passes through the size adjustment plate (3) and the adjustment thread bottom hole (8), and the nut is provided with an internal thread; the lifting ring (2) is provided with an external thread, which is connected to the inside of the nut; The small gear (5) is meshed with the large gear nut (4), and the rotation of the small gear (5) drives the large gear nut (4) to rotate, thereby driving the lifting ring (2) to move up and down; The bottom of the small gear (5) passes through the size adjustment plate (3) and the adjustment thread bottom hole (8) and is connected to the rotating rod (6).
2. The high-precision fine-tuning device for the inclined assembly of a reducer according to claim 1 is characterized in that: It also includes an extended hand crank (7); the extended hand crank (7) is fixed to the end of the rotating rod (6); the extended hand crank (7) is rotated to enable the rotating rod (6) to transmit torque to the small gear (5).
3. The high-precision fine-tuning device for the inclined assembly of a reducer according to claim 1 is characterized in that: Every time the pinion (5) rotates 24°, the suspension ring (2) adjusts the distance by 0.03 mm.
4. The high-precision fine-tuning device for the inclined assembly of a reducer according to claim 1 is characterized in that: The size adjustment plate (3) is fixed to different adjustment thread bottom holes (8) on the balance beam (1) to adjust the position.
5. The high-precision fine-tuning device for the inclined assembly of a reducer according to claim 1 is characterized in that: Two size adjustment plates (3) are provided and are symmetrical about the center of the balance beam (1).
6. The high-precision fine-tuning device for the inclined assembly of a reducer according to any one of claims 1 to 5, characterized in that: The lifting ring (2) is connected to both sides of the reducer via a flexible rope.