A heavy load type four-shaft core linear module with double rows of U-shaped bearings on both sides

By using a double-row U-shaped bearing design on both sides, combined with a motor-driven lead screw, guide wheel, guide rod, and auxiliary rod structure, the problem of insufficient rigidity of traditional linear modules under heavy loads is solved, achieving high rigidity and high load-bearing capacity while reducing costs.

CN224680009UActive Publication Date: 2026-08-25DONGGUAN MEITE PRECISION MASCH CO LTD
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Patent Information

Application Number
CN202522521244.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-27
Publication Date
2026-08-25
Estimated Expiration
2035-11-27

AI Technical Summary

Technical Problem

Traditional linear modules lack rigidity under heavy or eccentric loads, and have limited resistance to bending moment and torque, leading to deformation and vibration, which affects processing accuracy and dynamic response performance. In addition, their load-bearing capacity is limited, and the module size and cost increase.

Method used

The module adopts a double-row U-shaped bearing design on both sides, combined with the first and second motor drive screws, guide wheels and guide rods, auxiliary rods and connecting blocks, to improve the stability and rigidity of the module and enhance its load-bearing capacity.

Benefits of technology

It improves the operational stability and rigidity of the linear module under heavy load conditions, enhances its load-bearing capacity, reduces module deformation and vibration, and lowers costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a heavy load type four axle core linear module of two sides double -row U type bearing, including first base, one end fixed connection of first base has first motor, and the output shaft fixed connection of first motor has first screw rod, the surface screw thread connection of first screw rod has the mounting bracket, and the top fixed connection of mounting bracket has second base, the left side fixed connection of second base has second motor, and the output shaft fixed connection of second motor has second screw rod, and the surface screw thread connection of second screw rod has the connecting plate. The utility model sets up first motor, can through first screw rod and drive mounting bracket to remove, sets up second motor, can through second screw rod and drive connecting plate to remove, sets up the guide wheel and the guide rod, can further improve the stability of mounting bracket and connecting plate operation, sets up the auxiliary rod and the connecting block, can connect two first base firm.
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Description

Technical Field

[0001] This utility model relates to the field of high-precision linear transmission technology, specifically a heavy-duty four-axis linear module with double-row U-shaped bearings on both sides. Background Technology

[0002] Linear modules are precision transmission devices that convert rotary motion into linear motion. They are widely used in automation equipment, CNC machine tools, measuring instruments, and other fields. In heavy-duty applications (such as large parts processing and heavy object handling), extremely high requirements are placed on the rigidity, load capacity, and operating accuracy of linear modules. Traditional linear modules mostly use single or double ball linear guides as guiding mechanisms. Although the accuracy is acceptable, there are obvious shortcomings when bearing large overturning moments, offset loads, or impact loads: Insufficient rigidity: The bending moment and torque resistance of single or double guides are limited, and deformation and vibration are easily generated under heavy or offset loads, affecting processing accuracy and dynamic response performance; Limited load capacity: The slider size and the number of internal balls of the guide determine its rated load. To further increase the load significantly, larger guide sizes are often required, resulting in a large module size and a surge in cost. To address this, we propose a heavy-duty four-axis linear module with double-row U-shaped bearings on both sides. Utility Model Content

[0003] The purpose of this invention is to provide a heavy-duty four-axis linear module with double-row U-shaped bearings on both sides to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a heavy-duty four-axis linear module with double-row U-shaped bearings on both sides, including a first base, a first motor fixedly connected to one end of the first base, and a first lead screw fixedly connected to the output shaft of the first motor, a mounting bracket threadedly connected to the surface of the first lead screw, a second base fixedly connected to the top of the mounting bracket, a second motor fixedly connected to the left side of the second base, a second lead screw fixedly connected to the output shaft of the second motor, and a connecting plate threadedly connected to the surface of the second lead screw.

[0005] Preferably, there are two first bases, and the first base and the second base are the same size.

[0006] Preferably, a connecting block is fixedly connected to the other end of the first base, and an auxiliary rod is movably connected to the inner side of the connecting block.

[0007] Preferably, a reserved groove is provided at the connection between the second base and the connecting plate, and at the connection between the first base and the mounting bracket.

[0008] Preferably, the inner sides of the first base and the second base are movably connected with a plurality of equally spaced guide wheels, the surfaces of the guide wheels are slidably connected with guide rods, and the ends of the guide rods are fixedly connected to the inner sides of the first base and the second base.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] This utility model is equipped with a first motor, which can drive the mounting frame to move via a first lead screw; a second motor, which can drive the connecting plate to move via a second lead screw; guide wheels and guide rods, which can further improve the stability of the operation of the mounting frame and the connecting plate; and auxiliary rods and connecting blocks, which can firmly connect the two first bases. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the present invention from a first-person perspective.

[0012] Figure 2 This is a three-dimensional structural diagram of the present invention from a second perspective.

[0013] Figure 3 This is a schematic diagram of the guide rod structure of this utility model.

[0014] In the diagram: 1. First base; 2. Second motor; 3. Auxiliary rod; 4. Mounting bracket; 5. First motor; 6. Second base; 7. Connecting plate; 8. Connecting block; 9. Guide wheel; 10. Guide rod. Detailed Implementation

[0015] 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 protection scope of the present utility model.

[0016] The components of this application, including the first base 1, the second motor 2, the auxiliary rod 3, the mounting bracket 4, the first motor 5, the second base 6, the connecting plate 7, the connecting block 8, the guide wheel 9, and the guide rod 10, are all general standard parts or parts known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0017] Example 1:

[0018] Please see Figures 1-3The following technical solution is provided, specifically disclosed: including a first base 1, a first motor 5 is fixedly connected to one end of the first base 1, and a first lead screw is fixedly connected to the output shaft of the first motor 5. A mounting bracket 4 is threadedly connected to the surface of the first lead screw, and a second base 6 is fixedly connected to the top of the mounting bracket 4. A second motor 2 is fixedly connected to the left side of the second base 6, and a second lead screw is fixedly connected to the output shaft of the second motor 2. A connecting plate 7 is threadedly connected to the surface of the second lead screw.

[0019] A first motor 5 is provided, which can drive the mounting frame 4 to move via a first lead screw. A second motor 2 is provided, which can drive the connecting plate 7 to move via a second lead screw. Guide wheels 9 and guide rods 10 are provided to further improve the stability of the operation of the mounting frame 4 and the connecting plate 7. An auxiliary rod 3 and a connecting block 8 are provided to firmly connect the two first bases 1.

[0020] Example 2:

[0021] Please see Figures 1-3 The following technical solution is provided, specifically: there are two first bases 1, and the first bases 1 and the second bases 6 have the same size.

[0022] The other end of the first base 1 is fixedly connected to a connecting block 8, and the inner side of the connecting block 8 is movably connected to an auxiliary rod 3.

[0023] Pre-reserved slots are provided at the connection points between the second base 6 and the connecting plate 7, and at the connection points between the first base 1 and the mounting bracket 4.

[0024] Multiple guide wheels 9 are movably connected to the inner sides of the first base 1 and the second base 6 at equal intervals. Guide rods 10 are slidably connected to the surface of the guide wheels 9, and the ends of the guide rods 10 are fixedly connected to the inner sides of the first base 1 and the second base 6.

[0025] The working principle of this application is as follows: a first motor 5 is provided, which can drive the mounting frame 4 to move through the first lead screw; a second motor 2 is provided, which can drive the connecting plate 7 to move through the second lead screw; a guide wheel 9 and a guide rod 10 are provided, which can further improve the stability of the operation of the mounting frame 4 and the connecting plate 7; and an auxiliary rod 3 and a connecting block 8 are provided, which can firmly connect the two first bases 1.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heavy-duty quadcopter linear module with double-row U-shaped bearings on both sides, comprising a first base (1), characterized in that: One end of the first base (1) is fixedly connected to a first motor (5), and the output shaft of the first motor (5) is fixedly connected to a first lead screw. The surface of the first lead screw is threadedly connected to a mounting bracket (4), and the top of the mounting bracket (4) is fixedly connected to a second base (6). The left side of the second base (6) is fixedly connected to a second motor (2), the output shaft of the second motor (2) is fixedly connected to a second lead screw, and the surface of the second lead screw is threadedly connected to a connecting plate (7).

2. The heavy-duty quadcopter linear module with double-row U-shaped bearings on both sides according to claim 1, characterized in that: There are two first bases (1), and the first base (1) and the second base (6) are the same size.

3. The heavy-duty quadcopter linear module with double-row U-shaped bearings on both sides according to claim 1, characterized in that: The other end of the first base (1) is fixedly connected to a connecting block (8), and the inner side of the connecting block (8) is movably connected to an auxiliary rod (3).

4. The heavy-duty quadcopter linear module with double-row U-shaped bearings on both sides according to claim 1, characterized in that: The connection between the second base (6) and the connecting plate (7) and the connection between the first base (1) and the mounting bracket (4) are both provided with reserved slots.

5. A heavy-duty quadcopter linear module with double-row U-shaped bearings on both sides according to claim 1, characterized in that: Multiple guide wheels (9) are movably connected to the inner sides of the first base (1) and the second base (6). Guide rods (10) are slidably connected to the surface of the guide wheels (9), and the ends of the guide rods (10) are fixedly connected to the inner sides of the first base (1) and the second base (6).