H-axis single motor multi-belt transmission device

CN224909277UActive Publication Date: 2026-10-27ZHEJIANG ZHAOSHAN MECHANISM-ELECTRICITY CO LTD
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Patent Information

Application Number
CN202520722551.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-15
Publication Date
2026-10-27
Estimated Expiration
2035-04-15

AI Technical Summary

Technical Problem

缺点也很明显,直连方案在H轴单边大于10米后,首末端不能确保一致性

Benefits of technology

[0010]与现有技术相比,本实用新型通过使用轴接套将电机轴与负载轴连接,解决了电机轴单端偏心受力,轴承寿命短的情况;通过左右双皮带轮驱动,使受力端在电机座上,电机只负责径向负荷,寿命更长;相比于传统直连结构,此方案在小头距时,通过调节皮带轮的位置,从而可调节皮带的间距,或更换不同宽度皮带,在轴比较长时,可以放置在中间位置,让左右负载更均匀。

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Abstract

The utility model relates to a kind of H-axis single motor multi-belt transmission device, including motor base, the load shaft is horizontally provided on the motor base, the load shaft is rotatably connected in motor base, two pulleys are provided on the load shaft, further including the driving member for driving the rotation of load shaft, the driving member is provided with mounting flange between motor base, the load shaft and the motor shaft between the driving member are provided with shaft joint cover, the utility model connects motor shaft with load shaft by using shaft joint cover, solves the single-end eccentric force of motor shaft, the short service life of bearing;By left and right double pulley drive, make stressed end on motor base, motor is only responsible for radial load, and life is longer.
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Description

Technical Field

[0001] This utility model belongs to the technical field of embroidery machine equipment and relates to an H-axis single motor multi-belt transmission device. Background Technology

[0002] As a crucial drive shaft for the towel embroidery shuttle, the H-axis operates at high speed with forward and reverse inching motion. As the core mechanism of the towel embroidery machine, its control precision directly affects the embroidery effect, and its durability directly determines the overall lifespan of the machine. Therefore, ensuring the precision and lifespan of the H-axis has become an indispensable factor in evaluating a towel embroidery machine.

[0003] Currently, the mainstream H-axis drive solutions on the market are too simple, mainly consisting of H-axis "direct drive" and H-axis motor shaft-end belt drive. The advantages of these two drive methods are simple structure and low cost. However, the disadvantages are also obvious. With the direct drive method, the consistency between the beginning and end cannot be guaranteed when the H-axis is longer than 10 meters on one side. The shaft-end belt is limited by the belt width and is not suitable for multi-head, heavy-load applications. Moreover, since the force is applied on one side, the motor bearings are prone to damage. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing an H-axis single-motor multi-belt drive device.

[0005] The objective of this utility model can be achieved through the following technical solution: an H-axis single motor multi-belt transmission device, including a motor base, a load shaft horizontally arranged on the motor base, the load shaft being rotatably connected to the motor base, two pulleys arranged on the load shaft, and a driving component for driving the load shaft to rotate, a mounting flange being provided between the driving component and the motor base, and a shaft connecting sleeve being provided between the load shaft and the motor shaft of the driving component.

[0006] In the above-mentioned H-axis single motor multi-belt drive device, a bearing housing is also provided on the load shaft, and a first bearing is provided on the bearing housing.

[0007] In the above-mentioned H-axis single motor multi-belt drive device, a second bearing is also provided at the connection between the load shaft and the motor base.

[0008] In the above-mentioned H-axis single motor multi-belt transmission device, clamps are provided on both sides of the pulley.

[0009] In the above-mentioned H-axis single motor multi-belt drive device, the drive motor is a servo motor.

[0010] Compared with the prior art, this utility model solves the problem of eccentric force on the motor shaft and short bearing life by connecting the motor shaft and the load shaft by using a shaft sleeve; by driving with double pulleys on the left and right, the force-bearing end is on the motor base, and the motor is only responsible for the radial load, resulting in a longer life; compared with the traditional direct-drive structure, this solution can adjust the belt spacing by adjusting the position of the pulleys when the end distance is small, or replace the belt with a different width. When the shaft is relatively long, it can be placed in the middle position to make the load on the left and right sides more even. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a side view of the present invention.

[0013] In the diagram, 1 is the motor base; 2 is the load shaft; 3 is the pulley; 4 is the drive component; 5 is the mounting flange; 6 is the shaft sleeve; 7 is the bearing housing; 8 is the first bearing; 9 is the second bearing; and 10 is the clamp. Detailed Implementation

[0014] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0015] Example

[0016] like Figure 1 and Figure 2 As shown, an H-axis single-motor multi-belt drive device includes a motor base 1, a load shaft 2 horizontally arranged on the motor base 1, the load shaft 2 being rotatably connected to the motor base 1, two pulleys 3 arranged on the load shaft 2, and a drive component 4 for driving the load shaft 2 to rotate. A mounting flange 5 is provided between the drive component 4 and the motor base 1, and a shaft connection sleeve 6 is provided between the load shaft 2 and the motor shaft of the drive component 4.

[0017] Furthermore, a bearing seat 7 is also provided on the load shaft 2. The bearing seat 7 is installed in the middle of the load shaft 2 and can support the load shaft 2, thereby preventing the load shaft 2 from breaking due to long-term stress in the middle. A first bearing 8 is provided on the bearing seat 7.

[0018] Furthermore, a second bearing 9 is provided at the connection between the load shaft 2 and the motor base 1. The arrangement of the first bearing 8 and the second bearing 9 enables the load shaft 2 to rotate more smoothly and reduces friction.

[0019] Furthermore, clamps 10 are provided on both sides of the pulley. The clamps 10 can limit and fix the pulley 3, preventing the pulley 3 from shifting when rotating. At the same time, it is also convenient for the staff to adjust the position of the belt. When the clamps 10 are loosened, the pulley 3 can be adjusted left and right.

[0020] In the above-mentioned H-axis single motor multi-belt drive device, the drive motor is a servo motor.

[0021] Compared with the prior art, this utility model solves the problem of eccentric force on the motor shaft and short bearing life by using a shaft sleeve 6 to connect the motor shaft and the load shaft 2. Driven by left and right double pulleys 3, the force-bearing end is on the motor base 1, and the motor is only responsible for the radial load, resulting in a longer life. Compared with the traditional direct-drive structure, this solution can adjust the belt spacing by adjusting the position of the pulleys 3 when the end distance is small, or replace the belt with a different width. When the shaft is relatively long, it can be placed in the middle position to make the load on the left and right sides more even.

[0022] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A single-motor multi-belt drive device for an H-axis, characterized in that, The device includes a motor base (1), on which a load shaft (2) is horizontally arranged. The load shaft (2) is rotatably connected to the motor base (1). Two pulleys (3) are arranged on the load shaft (2). The device also includes a drive component (4) for driving the load shaft (2) to rotate. A mounting flange (5) is provided between the drive component (4) and the motor base (1). A shaft sleeve (6) is provided between the load shaft (2) and the motor shaft of the drive component (4).

2. The H-axis single-motor multi-belt drive device according to claim 1, characterized in that: The load shaft (2) is also provided with a bearing housing (7), and the bearing housing (7) is provided with a first bearing (8).

3. The H-axis single-motor multi-belt drive device according to claim 1, characterized in that: A second bearing (9) is also provided at the connection between the load shaft (2) and the motor base (1).

4. The H-axis single-motor multi-belt drive device according to claim 1, characterized in that: Both sides of the pulley (3) are provided with clamps (10).

5. The H-axis single-motor multi-belt drive device according to claim 1, characterized in that: The driving component (4) is a servo motor.