Transmission shaft with adjustable length
By designing an adjustable transmission shaft structure, the length adjustment of the transmission shaft is achieved by using locking parts and magnet rods, the problem of unknown dimensional parameters during the debugging process is solved, and simple disassembly and stable transmission connection is provided.
Patent Information
- Application Number
- CN202421177731.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-05-27
AI Technical Summary
When debugging parameters or modifying components, the dimension parameters of the existing drive shaft are unknown and need to be temporarily adjusted, but the fixed shaft cannot meet this requirement, resulting in inconvenient adjustment.
A length adjustable transmission shaft including connecting sleeves, transmission shafts, transmission splines, locking members and magnet rods is designed. The length adjustment is achieved through the limit of the locking members and the simple removal of the magnet rods to ensure stable transmission.
It realizes simple disassembly and assembly and stable connection of the drive shaft, prevents the locking member from being misaligned and flips, and keeps the locking member in the limiting groove through centrifugal force, strengthens the connection strength and simplifies the length adjustment process.
Smart Images
Figure CN222351148U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of transmission shafts and relates to a transmission shaft, in particular to a transmission shaft with adjustable length. Background Art
[0002] The drive shaft is a high-speed, low-support rotating body, and its dynamic balance is extremely important. Before leaving the factory, the drive shaft is usually subjected to dynamic balance tests and adjustments. The drive shaft is mainly used to transmit the rotation of the transmission to the main reducer to achieve power transmission.
[0003] Conventional drive shafts are fixed shafts. However, when debugging parameters or modifying parts, the size parameters are unknown and need to be temporarily adjusted. Therefore, it is necessary to develop a drive shaft with adjustable length. Summary of the invention
[0004] The utility model aims to solve the above problems in the prior art and provides a length-adjustable transmission shaft which is easy to assemble and disassemble and has stable transmission.
[0005] The purpose of the utility model can be achieved through the following technical solutions: a length-adjustable transmission shaft, characterized in that it includes a connecting sleeve and a transmission shaft, one end of the transmission shaft is an adjustment end, the adjustment end is provided with a plurality of transmission splines, and a through hole is provided at the center of the transmission shaft, a through groove is opened on the adjustment end, the through groove is connected with the through hole, a plurality of locking members are provided in the through groove, a threaded hole is provided at the end of the transmission shaft, a locking assembly is provided in the threaded hole, and a magnet bar is provided in the through hole.
[0006] In the above-mentioned length-adjustable transmission shaft, an adjusting bolt is provided on the locking assembly, a fixing rod is provided at the end of the adjusting bolt, the fixing rod is arranged in the through groove, and one side of the fixing rod is in conflict with the locking member.
[0007] In the above-mentioned length-adjustable transmission shaft, a mounting hole is provided in the connecting sleeve, and a plurality of engaging grooves for engaging the transmission spline are provided in the mounting hole, and a limiting groove is provided at the end of the engaging groove.
[0008] In the above-mentioned length-adjustable transmission shaft, a fixing ring is provided at the end of the transmission shaft, and a plurality of fixing bolts are provided on the fixing ring.
[0009] Compared with the prior art, the length-adjustable transmission shaft uses a locking piece to limit the locking piece to prevent the locking piece from being misplaced and flipped. The length adjustment can be achieved by replacing different locking pieces. The magnet bar makes the disassembly of the locking piece easier. When the shaft rotates, the locking piece enters the limiting groove due to the action of centrifugal force to prevent disconnection. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a structural schematic diagram of a half-section of the length-adjustable transmission shaft.
[0011] Figure 2 It is a structural schematic diagram of the length-adjustable transmission shaft.
[0012] Figure 3 It is a schematic diagram of the structure of a half-section of a connecting sleeve of a length-adjustable transmission shaft.
[0013] Figure 4 It is a partially enlarged structural schematic diagram of the length-adjustable transmission shaft.
[0014] In the figure, 1. connecting sleeve; 2. through hole; 3. transmission shaft; 4. locking piece; 5. transmission spline; 6. fixing ring; 7. fixing bolt; 8. mounting hole; 9. limiting groove; 10. snap-in groove; 11. locking assembly; 12. magnet bar; 13. through groove; 14. adjusting bolt; 15. threaded hole; 16. fixing rod; 17. adjustment end. DETAILED DESCRIPTION
[0015] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
[0016] like Figure 1 , 2 As shown in , 3 and 4, the length-adjustable transmission shaft 3 includes a connecting sleeve 1 and a transmission shaft 3, one end of the transmission shaft 3 is an adjustment end 17, and a plurality of transmission splines 5 are arranged on the adjustment end 17, and a through hole 2 is arranged through the center of the transmission shaft 3, a through groove 13 is opened on the adjustment end 17, and the through groove 13 is connected with the through hole 2, and a plurality of locking members 4 are arranged in the through groove 13, a threaded hole 15 is arranged at the end of the transmission shaft 3, and a locking assembly 11 is arranged in the threaded hole 15, and a magnet bar 1 is arranged in the through hole 2 2. When installing, select a locking piece 4 of appropriate length, and adjust the locking assembly 11 to prevent the locking piece 4 from excessive movement. After the installation is completed, pull out the magnet bar 12, and the downward locking piece 4 completes the card connection to prevent it from being separated from the connecting sleeve 1. When rotating, the locking piece 4 moves outward under the action of centrifugal force, further completing the locking limit and increasing the connection strength. When disassembling and adjusting, insert the magnet bar 12 to attract the locking pieces 4 at both ends. After being attracted, the top of the locking piece 4 is flush with the transmission spline 5, and it can be quickly disassembled.
[0017] Preferably, the locking assembly 11 is provided with an adjusting bolt 14 , and a fixing rod 16 is provided at the end of the adjusting bolt 14 . The fixing rod 16 is disposed in the through slot 13 , and one side of the fixing rod 16 is in conflict with the locking member 4 .
[0018] Preferably, a mounting hole 8 is provided in the connecting sleeve 1 , and a plurality of engaging grooves 10 for engaging the transmission spline 5 are provided in the mounting hole 8 , and a limiting groove 9 is provided at the end of the engaging groove 10 .
[0019] Preferably, a fixing ring 6 is provided at the end of the transmission shaft 3, and a plurality of fixing bolts 7 are provided on the fixing ring 6. The transmission shaft 3 is fixed by pulling the fixing ring 6 and the fixing bolts 7, so that one end of the limit groove 9 is in contact with the locking member 4 to achieve length control.
[0020] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.
[0021] Although this article uses more terms such as connecting sleeve 1, through hole 2, transmission shaft 3, locking member 4, transmission spline 5, fixing ring 6, fixing bolt 7, mounting hole 8, limiting groove 9, clamping groove 10, locking assembly 11, magnet bar 12, through groove 13, adjusting bolt 14, threaded hole 15, fixing rod 16, and adjustment end 17, it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.
Claims
1. A length-adjustable transmission shaft (3), characterized in that: The invention comprises a connecting sleeve (1) and a transmission shaft (3), wherein one end of the transmission shaft (3) is an adjustment end (17), the adjustment end (17) is provided with a plurality of transmission splines (5), and a through hole (2) is provided at the center of the transmission shaft (3), a through groove (13) is provided on the adjustment end (17), the through groove (13) is connected with the through hole (2), a plurality of locking members (4) are provided in the through groove (13), a threaded hole (15) is provided at the end of the transmission shaft (3), a locking assembly (11) is provided in the threaded hole (15), and a magnet bar (12) is provided in the through hole (2).
2. The length-adjustable transmission shaft (3) according to claim 1, characterized in that: The locking assembly (11) is provided with an adjusting bolt (14), and a fixing rod (16) is provided at the end of the adjusting bolt (14). The fixing rod (16) is arranged in the through groove (13), and one side of the fixing rod (16) is in contact with the locking member (4).
3. The length-adjustable transmission shaft (3) according to claim 1, characterized in that: The connecting shaft sleeve (1) is provided with a mounting hole (8), and the mounting hole (8) is provided with a plurality of engaging grooves (10) for engaging the transmission spline (5), and the end of the engaging groove (10) is provided with a limiting groove (9).
4. The length-adjustable transmission shaft (3) according to claim 1, characterized in that: A fixing ring (6) is provided at the end of the transmission shaft (3), and a plurality of fixing bolts (7) are provided on the fixing ring (6).