Nine-stage variable speed 1.41 ratio main shaft box

By designing a nine-speed, 1.41 common ratio spindle box and employing specific gear combinations and shaft settings, the problems of complex spindle box structure and high cost were solved, achieving simple and economical machining capabilities under multi-speed changes.

CN224372830UActive Publication Date: 2026-06-19DEZHOU ZHONGTUO MASCH TOOL MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DEZHOU ZHONGTUO MASCH TOOL MFG CO LTD
Filing Date
2025-06-18
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing machine tool spindle boxes have complex structures and high costs, making it difficult to meet most machining needs under multi-speed changes.

Method used

A nine-speed, 1.41 common ratio spindle box is designed to achieve multi-speed meshing transmission through specific gear combinations and shaft settings, simplifying the structure and reducing costs.

Benefits of technology

It meets most processing needs, has a relatively simple structure and low cost, and is widely applicable.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224372830U_ABST
    Figure CN224372830U_ABST
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Abstract

This utility model belongs to the technical field of machine tool spindle boxes, and specifically relates to a nine-speed variable 1.41 common ratio spindle box, including a #1 fixed gear, a #2 fixed gear, a #3 sliding gear, a #4 sliding gear, a #5 fixed gear, a #6 fixed gear, a #7 fixed gear, a #8 fixed gear, a #9 sliding gear, a #10 sliding gear, a #11 sliding gear, a #12 fixed gear, and a #13 fixed gear. This utility model provides a nine-speed variable 1.41 common ratio spindle box that can basically meet most machining needs, and its structure is not very complex, its cost is relatively low, and it has good versatility.
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Description

Technical Field

[0001] This utility model belongs to the technical field of machine tool spindle boxes, and specifically relates to a nine-speed variable 1.41 common ratio spindle box. Background Technology

[0002] The spindle box is a crucial component of a machine tool, used to house the machine tool's working spindle, its transmission parts, and related auxiliary mechanisms. The spindle box is a complex transmission component, including the spindle assembly, reversing mechanism, transmission mechanism, braking device, operating mechanism, and lubrication device, among others.

[0003] Spindle boxes are generally multi-stage speed change structures. The more speed change stages a machine tool has, the wider its machining range can be. Different machining tasks require different speeds or even speed changes. Machine tools with more speed change stages can better meet these needs, but this also means that the structure will be very complex and the cost will be very high.

[0004] Therefore, developing a compromise spindle box is our research and development direction. Summary of the Invention

[0005] This invention provides a nine-speed, 1.41 common ratio spindle box, which can solve the problems pointed out in the background art.

[0006] A nine-speed, 1.41 common ratio spindle box includes a fixed gear #1, a fixed gear #2, a sliding gear #3, a sliding gear #4, a fixed gear #5, a fixed gear #6, a fixed gear #7, a fixed gear #8, a fixed gear #9, a sliding gear #10, a sliding gear #11, a fixed gear #12, and a fixed gear #13.

[0007] In the first gear position: the 4# sliding gear meshes with the 7# fixed gear, the 6# fixed gear meshes with the 10# sliding gear, the 1# fixed gear meshes with the 2# fixed gear, and the 12# fixed gear meshes with the 13# fixed gear in sequence;

[0008] In the second gear position: the 3# sliding gear meshes with the 5# fixed gear, the 6# fixed gear meshes with the 10# sliding gear, the 1# fixed gear meshes with the 2# fixed gear, and the 12# fixed gear meshes with the 13# fixed gear in sequence;

[0009] In the third gear position: the 4# sliding gear meshes with the 7# fixed gear, the 8# fixed gear meshes with the 9# sliding gear, the 1# fixed gear meshes with the 2# fixed gear, and the 12# fixed gear meshes with the 13# fixed gear in sequence;

[0010] In the fourth gear position: the 3# sliding gear meshes with the 5# fixed gear, the 8# fixed gear meshes with the 9# sliding gear, the 1# fixed gear meshes with the 2# fixed gear, and the 12# fixed gear meshes with the 13# fixed gear in sequence;

[0011] In the fifth gear position: the 4# sliding gear meshes with the 7# fixed gear, the 5# fixed gear meshes with the 11# sliding gear, the 1# fixed gear meshes with the 2# fixed gear, and the 12# fixed gear meshes with the 13# fixed gear in sequence;

[0012] In the sixth gear position: the 3# sliding gear meshes with the 5# fixed gear, the 5# fixed gear with the 11# sliding gear, the 1# fixed gear with the 2# fixed gear, and the 12# fixed gear with the 13# fixed gear in sequence;

[0013] In the seventh gear position: the 4# sliding gear meshes with the 7# fixed gear, the 8# fixed gear meshes with the 9# sliding gear, the 1# fixed gear meshes with the 2# fixed gear, and the 12# fixed gear meshes with the 13# fixed gear in sequence;

[0014] In the eighth gear position: the 3# sliding gear meshes with the 5# fixed gear, the 8# fixed gear meshes with the 9# sliding gear, the 1# fixed gear meshes with the 2# fixed gear, and the 12# fixed gear meshes with the 13# fixed gear in sequence;

[0015] In the ninth gear position: the 4# sliding gear meshes with the 7# fixed gear, the 5# fixed gear meshes with the 11# sliding gear, the 1# fixed gear meshes with the 2# fixed gear, and the 12# fixed gear meshes with the 13# fixed gear in sequence;

[0016] The common ratio of each gear's progressive transmission is 1.41 ± 0.043.

[0017] Preferably, it further includes axes I, II, III, IV, and a main spindle 500 arranged sequentially. The #3 and #4 sliding gears are arranged on axis I, the #5, #6, #8, and #7 fixed gears are arranged sequentially on axis II, the #1, #9, #10, and #11 sliding gears are arranged sequentially on axis III 300, the #2 and #12 fixed gears are arranged on axis IV 400, and the #13 fixed gear is arranged on the main spindle 500.

[0018] Preferably, the number of teeth of the fixed gear 1, fixed gear 2, sliding gear 3, sliding gear 4, fixed gear 5, fixed gear 6, fixed gear 7, fixed gear 8, sliding gear 9, sliding gear 10, sliding gear 11, fixed gear 12, and fixed gear 13 are 25, 53, 40, 33, 50, 15, 57, 30, 60, 60, 50, 16, and 63, respectively.

[0019] Beneficial effects: This utility model provides a nine-speed 1.41 common ratio spindle box, which can basically meet most processing needs, and the structure is not very complicated, the cost is relatively low, and it has good versatility. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the transmission ratio of this utility model;

[0022] Explanation of reference numerals in the attached figures:

[0023] Numbering in the diagram: 1# Fixed Gear 1; 2# Fixed Gear 2; 3# Sliding Gear 3; 4# Sliding Gear 4; 5# Fixed Gear 5; 6# Fixed Gear 6; 7# Fixed Gear 7; 8# Fixed Gear 8; 9# Sliding Gear 9; 10# Sliding Gear 10; 11# Sliding Gear 11; 12# Fixed Gear 12; 13# Fixed Gear 13; Shaft I 100; Shaft II 200; Shaft III 300; Shaft IV 400; Main Shaft 500. Detailed Implementation

[0024] The following describes a specific embodiment of the present invention in detail with reference to the accompanying drawings. However, it should be understood that the scope of protection of the present invention is not limited to the specific embodiment.

[0025] Example 1: As Figure 1-2 As shown in the figure, the present invention provides a nine-speed 1.41 common ratio spindle box, including a fixed gear 1#, a fixed gear 2#, a sliding gear 3#, a sliding gear 4#, a fixed gear 5#, a fixed gear 6#, a fixed gear 7#, a fixed gear 8#, a sliding gear 9#, a sliding gear 10#, a sliding gear 11#, a fixed gear 12#, and a fixed gear 13#.

[0026] In the first gear position: the 4# sliding gear 4 and the 7# fixed gear 7, the 6# fixed gear 6 and the 10# sliding gear 10, the 1# fixed gear 1 and the 2# fixed gear 2, and the 12# fixed gear 12 and the 13# fixed gear 13 mesh and drive in sequence;

[0027] In the second gear position: the 3# sliding gear 3 meshes with the 5# fixed gear 5, the 6# fixed gear 6 meshes with the 10# sliding gear 10, the 1# fixed gear 1 meshes with the 2# fixed gear 2, and the 12# fixed gear 12 meshes with the 13# fixed gear 13 in sequence;

[0028] In the third gear position: the 4# sliding gear 4 meshes with the 7# fixed gear 7, the 8# fixed gear 8 with the 9# sliding gear 9, the 1# fixed gear 1 with the 2# fixed gear 2, and the 12# fixed gear 12 with the 13# fixed gear 13 in sequence for transmission;

[0029] In the fourth gear position: the 3# sliding gear 3 meshes with the 5# fixed gear 5, the 8# fixed gear 8 with the 9# sliding gear 9, the 1# fixed gear 1 with the 2# fixed gear 2, and the 12# fixed gear 12 with the 13# fixed gear 13 in sequence for transmission;

[0030] In the fifth gear position: the 4# sliding gear 4 and the 7# fixed gear 7, the 5# fixed gear 5 and the 11# sliding gear 11, the 1# fixed gear 1 and the 2# fixed gear 2, and the 12# fixed gear 12 and the 13# fixed gear 13 mesh and drive in sequence;

[0031] In the sixth gear position: the 3# sliding gear 3 meshes with the 5# fixed gear 5, the 5# fixed gear 5 meshes with the 11# sliding gear 11, the 1# fixed gear 1 meshes with the 2# fixed gear 2, and the 12# fixed gear 12 meshes with the 13# fixed gear 13 in sequence;

[0032] In the seventh gear position: the 4# sliding gear 4 meshes with the 7# fixed gear 7, the 8# fixed gear 8 with the 9# sliding gear 9, the 1# fixed gear 1 with the 2# fixed gear 2, and the 12# fixed gear 12 with the 13# fixed gear 13 in sequence for transmission;

[0033] In the eighth gear position: the 3# sliding gear 3 meshes with the 5# fixed gear 5, the 8# fixed gear 8 meshes with the 9# sliding gear 9, the 1# fixed gear 1 meshes with the 2# fixed gear 2, and the 12# fixed gear 12 meshes with the 13# fixed gear 13 in sequence;

[0034] In the ninth gear position: the 4# sliding gear 4 meshes with the 7# fixed gear 7, the 5# fixed gear 5 meshes with the 11# sliding gear 11, the 1# fixed gear 1 meshes with the 2# fixed gear 2, and the 12# fixed gear 12 meshes with the 13# fixed gear 13 in sequence;

[0035] The common ratio of each gear's progressive transmission is 1.41 ± 0.043.

[0036] Specifically, it also includes a first axis 100, a second axis 200, a third axis 300, a fourth axis 400, and a main shaft 500 arranged sequentially. The third sliding gear 3 and the fourth sliding gear 4 are mounted on the first axis 100. The fifth fixed gear 5, the sixth fixed gear 6, the eighth fixed gear 8, and the seventh fixed gear 7 are arranged sequentially on the second axis 200. The first fixed gear 1, the ninth sliding gear 9, the tenth sliding gear 10, and the eleventh sliding gear 11 are arranged sequentially on the third axis 100. On shaft 300, the #2 fixed gear 2 and the #12 fixed gear 12 are mounted on shaft IV 400, and the #13 fixed gear 13 is mounted on main shaft 500. The number of teeth of the #1 fixed gear 1, the #2 fixed gear 2, the #3 sliding gear 3, the #4 sliding gear 4, the #5 fixed gear 5, the #6 fixed gear 6, the #7 fixed gear 7, the #8 fixed gear 8, the #9 sliding gear 9, the #10 sliding gear 10, the #11 sliding gear 11, the #12 fixed gear 12, and the #13 fixed gear 13 are 25, 53, 40, 33, 50, 15, 57, 30, 60, 60, 50, 16, and 63, respectively.

[0037] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A nine-speed, 1.41 common ratio spindle box, characterized in that: Including 1# fixed gear (1), 2# fixed gear (2), 3# sliding gear (3), 4# sliding gear (4), 5# fixed gear (5), 6# fixed gear (6), 7# fixed gear (7), 8# fixed gear (8), 9# sliding gear (9), 10# sliding gear (10), 11# sliding gear (11), 12# fixed gear (12), and 13# fixed gear (13); In the first gear position: the 4# sliding gear (4) meshes with the 7# fixed gear (7), the 6# fixed gear (6) meshes with the 10# sliding gear (10), the 1# fixed gear (1) meshes with the 2# fixed gear (2), and the 12# fixed gear (12) meshes with the 13# fixed gear (13) in sequence; In the second gear position: the 3# sliding gear (3) meshes with the 5# fixed gear (5), the 6# fixed gear (6) meshes with the 10# sliding gear (10), the 1# fixed gear (1) meshes with the 2# fixed gear (2), and the 12# fixed gear (12) meshes with the 13# fixed gear (13) in sequence; In the third gear position: the 4# sliding gear (4) meshes with the 7# fixed gear (7), the 8# fixed gear (8) meshes with the 9# sliding gear (9), the 1# fixed gear (1) meshes with the 2# fixed gear (2), and the 12# fixed gear (12) meshes with the 13# fixed gear (13) in sequence; In the fourth gear position: the 3# sliding gear (3) meshes with the 5# fixed gear (5), the 8# fixed gear (8) meshes with the 9# sliding gear (9), the 1# fixed gear (1) meshes with the 2# fixed gear (2), and the 12# fixed gear (12) meshes with the 13# fixed gear (13) in sequence; In the fifth gear position: the 4# sliding gear (4) meshes with the 7# fixed gear (7), the 5# fixed gear (5) meshes with the 11# sliding gear (11), the 1# fixed gear (1) meshes with the 2# fixed gear (2), and the 12# fixed gear (12) meshes with the 13# fixed gear (13) in sequence; In the sixth gear position: the 3# sliding gear (3) meshes with the 5# fixed gear (5), the 5# fixed gear (5) meshes with the 11# sliding gear (11), the 1# fixed gear (1) meshes with the 2# fixed gear (2), and the 12# fixed gear (12) meshes with the 13# fixed gear (13) in sequence; In the seventh gear position: the 4# sliding gear (4) meshes with the 7# fixed gear (7), the 8# fixed gear (8) meshes with the 9# sliding gear (9), the 1# fixed gear (1) meshes with the 2# fixed gear (2), and the 12# fixed gear (12) meshes with the 13# fixed gear (13) in sequence; In the eighth gear position: the 3# sliding gear (3) meshes with the 5# fixed gear (5), the 8# fixed gear (8) meshes with the 9# sliding gear (9), the 1# fixed gear (1) meshes with the 2# fixed gear (2), and the 12# fixed gear (12) meshes with the 13# fixed gear (13) in sequence; In the ninth gear position: the 4# sliding gear (4) meshes with the 7# fixed gear (7), the 5# fixed gear (5) meshes with the 11# sliding gear (11), the 1# fixed gear (1) meshes with the 2# fixed gear (2), and the 12# fixed gear (12) meshes with the 13# fixed gear (13) in sequence; The common ratio of each gear's progressive transmission is 1.41 ± 0.

043.

2. The nine-speed, 1.41 common ratio spindle box according to claim 1, characterized in that: It also includes a first shaft (100), a second shaft (200), a third shaft (300), a fourth shaft (400), and a main shaft (500) arranged in sequence. The third sliding gear (3) and the fourth sliding gear (4) are arranged on the first shaft (100). The fifth fixed gear (5), the sixth fixed gear (6), the eighth fixed gear (8), and the seventh fixed gear (7) are arranged in sequence on the second shaft (200). The first fixed gear (1), the ninth sliding gear (9), the tenth sliding gear (10), and the eleventh sliding gear (11) are arranged in sequence on the third shaft (300). The second fixed gear (2) and the twelfth fixed gear (12) are arranged on the fourth shaft (400). The thirteenth fixed gear (13) is arranged on the main shaft (500).

3. A nine-speed, 1.41 common ratio spindle box according to any one of claims 1-2, characterized in that: The number of teeth of the fixed gear 1 (1), fixed gear 2 (2), sliding gear 3 (3), sliding gear 4 (4), fixed gear 5 (5), fixed gear 6 (6), fixed gear 7 (7), fixed gear 8 (8), sliding gear 9 (9), sliding gear 10 (10), sliding gear 11 (11), fixed gear 12 (12), and fixed gear 13 (13) are 25, 53, 40, 33, 50, 15, 57, 30, 60, 60, 50, 16, and 63, respectively.