Novel lead screw supporting structure

By introducing damping units and guide blocks into the lead screw support structure, the problem of collisions caused by the rudimentary damping device of the lead screw support frame was solved, thereby improving the stability and safety of the lead screw.

CN224144454UActive Publication Date: 2026-04-21BINZHOU SANHESHENG BALL BEARING SCREW MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BINZHOU SANHESHENG BALL BEARING SCREW MFG CO LTD
Filing Date
2025-05-29
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The existing lead screw support frame shock absorption device is too rudimentary, making the lead screw prone to bumps and damage during movement.

Method used

A novel lead screw support structure, comprising a first damping unit and a second damping unit, is designed. The first and second damping springs absorb the impact force when the lead screw strikes, and the stability of the device is maintained by guide blocks and guide grooves, thereby increasing service life and safety.

Benefits of technology

It effectively absorbs the impact force when the lead screw strikes, prevents bump damage, improves the stability and service life of the device, and enhances safety performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model is suitable for the field of lead screw processing, and particularly relates to a novel lead screw supporting structure which comprises a first cushioning unit, a second cushioning unit, a third cushioning unit, a fourth cushioning unit and a fifth cushioning unit, the first cushioning unit comprises a first cushioning spring and a first guide block, the first guide block is arranged on a cushioning rod, and the second cushioning unit comprises a second cushioning spring and a second guide block. The second guide block is arranged at the lower end of the supporting head, a first guide groove and a second guide groove are formed in the surface, corresponding to the first guide block and the second guide block, of the connecting rod, one end of the second cushioning unit is fixed to the cushioning rod, and the other end of the second cushioning unit is fixedly connected with the supporting head. By arranging the first cushioning spring and the second cushioning spring, the impact generated when the lead screw collides with the cushioning wheel can be absorbed, the first guide block is embedded in the first guide groove and freely slides along the first guide groove, and the second guide block is embedded in the second guide groove and slides along the second guide groove, so that the stability of the cushioning rod and the supporting head can be kept; rotation of the cushioning rod and the supporting head is avoided, and the safety performance of the whole device is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of lead screw processing, and specifically relates to a novel lead screw support structure. Background Technology

[0002] A lead screw is a precision mechanical component with helical grooves, usually used in conjunction with a nut to convert rotary motion into linear motion. Lead screws are characterized by high precision, reversibility, and high efficiency, and are widely used in various industrial equipment and precision instruments.

[0003] During the manufacturing process, lead screws need to be cut and ground. During cutting and grinding, the lead screw needs to be suspended in the air. In this process, a support frame is needed to support the lead screw. Existing support frames are all made by metal welding or by modifying machine tools, which makes the existing support frames difficult to move and transfer. Moreover, the existing support frames lack shock absorption devices, or they simply install a few plastic pads on V-blocks. However, in actual use, the lead screw is most vulnerable to damage the moment it moves to the support. Due to the weight of the lead screw and the overly rudimentary shock absorption devices of the existing support frames, the lead screw is extremely susceptible to impact damage.

[0004] In conclusion, a new technology is urgently needed to solve the problem that the damping devices in existing support frames are too rudimentary, making the lead screws prone to damage. Utility Model Content

[0005] This utility model provides a novel lead screw support structure, which aims to solve the problem that the shock absorption device in the existing support frame is too simple, making the lead screw prone to collisions.

[0006] The present invention is implemented as follows:

[0007] A novel lead screw support structure includes:

[0008] A fixed base is provided, with a counterweight fixed to the upper end of the fixed base. A connecting rod is provided at the upper end of the counterweight. A first damping unit, a damping rod, a second damping unit, and a support head are fixed inside the connecting rod. The first damping unit includes a first damping spring and a first guide block. The first guide block is set on the damping rod. The second damping unit includes a second damping spring and a second guide block. The second guide block is set at the lower end of the support head. The surface of the connecting rod at the position corresponding to the first guide block and the second guide block is provided with a first guide groove and a second guide groove. One end of the second damping unit is fixed to the damping rod, and the other end is fixedly connected to the support head.

[0009] Furthermore, the connecting rod is hollow inside, and a positioning bushing is welded to the upper end of the counterweight. One end of the first damping spring is pressed into the positioning bushing, and the other end is fitted into the end of the damping rod where the first guide block is located.

[0010] Furthermore, one end of the second damping spring is fixed to the end of the damping rod away from the first guide block, and the other end of the second damping spring is fitted into the lower end of the support head.

[0011] Furthermore, the support head includes a connecting rod and a support block. A second damping spring is fitted into the lower end of the connecting rod, and a support block is welded to the upper end of the connecting rod. Two rotating shafts are provided on the upper end of the support block, and damping wheels are fixed inside the rotating shafts respectively.

[0012] The beneficial effects achieved by this utility model are:

[0013] The device incorporates a first and a second damping spring to absorb the impact of the lead screw striking the damping wheel. Simultaneously, connecting rods are fitted around the first damping unit, the damping rod, and the second damping unit to prevent external dust from entering, thus increasing the device's lifespan. Furthermore, a first guide block and a second guide block are provided. The first guide block is embedded in a first guide groove and slides freely along it, while the second guide block is embedded in a second guide groove and slides along it. This maintains the stability of the damping rod and the support head, preventing them from rotating and increasing the overall safety of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the novel lead screw support structure provided by this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the second damping unit of this utility model.

[0016] Icon labels:

[0017] 100. Screw support structure;

[0018] 101. Counterweight; 102. Fixed base; 103. Connecting rod; 110. Second damping unit; 120. First damping unit; 111. Second damping spring; 112. Second guide block; 113. Damping rod; 131. Damping wheel; 132. Support block; 133. Connecting rod; 211. First guide block; 212. First damping spring; 213. Positioning bushing. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0020] The device incorporates a first and a second damping spring to absorb the impact of the lead screw striking the damping wheel. Simultaneously, connecting rods are fitted around the first damping unit, the damping rod, and the second damping unit to prevent external dust from entering, thus increasing the device's lifespan. Furthermore, a first guide block and a second guide block are provided. The first guide block is embedded in a first guide groove and slides freely along it, while the second guide block is embedded in a second guide groove and slides along it. This maintains the stability of the damping rod and the support head, preventing them from rotating and increasing the overall safety of the device.

[0021] Reference Figure 1 and Figure 2 In this embodiment of the utility model, a novel lead screw support structure 100 is provided, including: a fixed base 102, a counterweight 101 fixed at the upper end of the fixed base 102, a connecting rod 103 provided at the upper end of the counterweight 101, and a first damping unit 120, a damping rod 113, a second damping unit 110 and a support head fixed inside the connecting rod 103. The first damping unit 120 includes a first damping spring 212 and a first guide block 211, the first guide block 211 is disposed on the damping rod 113, the second damping unit 110 includes a second damping spring 111 and a second guide block 112, the second guide block 112 is disposed at the lower end of the support head, and the surface of the connecting rod 103 at the position corresponding to the first guide block 211 and the second guide block 112 is provided with a first guide groove and a second guide groove. One end of the second damping unit 110 is fixed on the damping rod 113, and the other end is fixedly connected to the support head.

[0022] This embodiment provides a lead screw support structure 100. The support structure is provided with a first damping unit 120 and a second damping unit 110. Through the first damping unit 120 and the second damping unit 110, when the lead screw is placed on the support rod, the first damping spring 212 and the second damping spring 111 absorb the impact force of the lead screw hitting the support rod. At the same time, two damping wheels 131 are provided to contact the lead screw. The damping wheels 131 absorb the impact force of the lead screw and transmit the impact force to the first damping spring 212 and the second damping spring 111, thereby shortening the time when placing the lead screw and increasing efficiency while ensuring the overall quality of the lead screw.

[0023] In one embodiment, the lead screw support structure 100 is provided with a fixed base 102, which is used to support the entire lead screw support structure 100. A counterweight 101 is fixed to the upper end of the fixed base 102 by welding or bolts. By providing the counterweight 101, the center of gravity of the lead screw support structure 100 is moved downward, thereby increasing the stability of the entire lead screw support structure 100. A connecting rod 103 is provided at the upper end of the counterweight 101. The connecting rod 103 is a hollow steel pipe. A first guide groove is opened at the lower end of the connecting rod 103, and a second guide groove is opened at the upper end of the connecting rod 103. A first damping unit 120 and a second damping unit 110 are embedded inside the connecting rod 103. The first damping unit 120 and the second damping unit 110 are connected by a damping rod 113.

[0024] A positioning bushing 213 is welded to the upper end of the counterweight 101. The positioning bushing 213 is used to fix the first damping spring 212. One end of the first damping spring 212 is fixed inside the positioning bushing 213, and the other end is fixed on the damping rod 113. By providing the first damping spring 212, the impact force on the damping rod 113 can be buffered.

[0025] The damping rod 113 is used to increase the length of the entire lead screw support structure 100. A first guide block 211 is fixed on the damping rod 113 near the first damping spring 212. The first guide block 211 can be fixedly connected to the damping rod 113 by screws. After the first damping spring 212 is placed in the positioning sleeve, the damping rod 113 is inserted into the connecting rod 103 until it protrudes into the first guide groove. Then, the first guide block 211 passes through the first guide groove and abuts against the surface of the damping rod 113. Finally, a pin passes through the first guide block 211 and is fixedly connected to the damping rod 113.

[0026] In another embodiment, the second damping unit 110 includes a second damping spring 111 and a second guide block 112. One end of the second damping spring 111 is fixedly connected to the damping rod 113, and the other end is fixedly connected to the support head. The surface of the connecting rod 103 at the corresponding positions of the first guide block 211 and the second guide block 112 is provided with a first guide groove and a second guide groove. One end of the second damping unit 110 is fixed on the connecting rod 103, and the other end is fixedly connected to the support head. Specifically, the support head includes a connecting rod 133 and a support block 132. The upper end of the second damping spring 111 is sleeved and connected to the lower end of the connecting rod 133. The upper end of the connecting rod 133 is welded with the support block 132. The upper end of the support block 132 is provided with two rotating shafts, and damping wheels 131 are fixed in the rotating shafts respectively. During installation, fix one end of the second damping spring 111 to the damping rod 113, and fit the connecting rod 133 into the connecting rod 103 until the connecting rod 133 protrudes from the second guide groove. Then, let the second guide block 112 pass through the second guide groove and press against the surface of the connecting rod 103. Finally, let the screw pass through the second guide block 112 and fix it to the connecting rod 133.

[0027] When the lead screw is fixedly installed, it contacts the damping wheel 131. After the lead screw is placed on the damping wheel 131, the damping wheel 131 will transmit the impact force of the lead screw to the second damping spring 111. The second damping spring 111 deforms to absorb part of the impact, and the other part of the impact is transmitted to the first damping spring 212 through the damping rod 113. The first damping spring 212 deforms to absorb most of the impact.

[0028] By incorporating a first damping unit 120, a damping rod 113, a second damping unit 110, and a support head, with a damping wheel 131 on the support head, compared to existing technologies, the first damping spring 212 and the second damping spring 111 in this embodiment can absorb the impact when the lead screw strikes the damping wheel 131. Simultaneously, a connecting rod 103 is fitted around the first damping unit 120, the damping rod 113, and the second damping unit 110 to prevent external dust from entering the first damping unit 120 and the second damping unit 110, thus increasing the service life of the device. Furthermore, a first guide block 211 and a second guide block 112 are provided. The first guide block 211 is embedded in the first guide groove and slides freely along it, while the second guide block 112 is embedded in the second guide groove and slides along it. This maintains the stability of the damping rod 113 and the support head, preventing them from rotating and increasing the overall safety performance of the device.

[0029] In the description of this specification, references to terms such as "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0030] Furthermore, the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel lead screw support structure, characterized by, include: A fixed base is provided, with a counterweight fixed to the upper end of the fixed base. A connecting rod is provided at the upper end of the counterweight. A first damping unit, a damping rod, a second damping unit, and a support head are fixed inside the connecting rod. The first damping unit includes a first damping spring and a first guide block. The first guide block is set on the damping rod. The second damping unit includes a second damping spring and a second guide block. The second guide block is set at the lower end of the support head. The surface of the connecting rod at the position corresponding to the first guide block and the second guide block is provided with a first guide groove and a second guide groove. One end of the second damping unit is fixed to the damping rod, and the other end is fixedly connected to the support head.

2. The novel lead screw support structure according to claim 1, wherein The connecting rod is hollow inside, and a positioning bushing is welded to the upper end of the counterweight. One end of the first damping spring is pressed into the positioning bushing, and the other end is fitted into the end of the damping rod where the first guide block is located.

3. The novel lead screw support structure according to claim 1, wherein One end of the second damping spring is fixed to the end of the damping rod away from the first guide block, and the other end of the second damping spring is fitted into the lower end of the support head.

4. The novel lead screw support structure according to claim 1, wherein The support head includes a connecting rod and a support block. A second damping spring is fitted into the lower end of the connecting rod, and a support block is welded to the upper end of the connecting rod. Two rotating shafts are provided on the upper end of the support block, and damping wheels are fixed inside the rotating shafts respectively.