A type of drawbar that reduces friction

By setting mounting grooves and locking blocks on the inner wall of the drawbone body and creating empty grooves in the guide wheel disc, combined with bolts and bearings, the problem of friction caused by the heavy weight of the guide wheel is solved, enabling the guide wheel to rotate rapidly, reducing material friction, and improving the efficiency of the drawbone.

CN224287860UActive Publication Date: 2026-05-26HUAIAN SAHAM MASCH MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUAIAN SAHAM MASCH MFG CO LTD
Filing Date
2025-07-18
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The existing guide wheel is a solid structure with a large weight. When the material is conveyed on its surface, a large frictional force is required to drive it to rotate, which causes the guide wheel to generate a large frictional force on the material before it rotates.

Method used

A mounting groove and locking block structure on the inner wall of the bow body was designed. Combined with the bolt, washer and nut connection method of the guide wheel structure, the guide wheel disk has a hollow groove inside. The rotating shaft is rotatably connected to the fixed shaft through the bearing, which reduces the self-weight and rotational resistance of the guide wheel.

Benefits of technology

This effectively reduces the friction of the guide wheel during rotation, improves the efficiency of material transmission, and ensures a better user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of drawbridge technology, specifically a drawbridge with reduced friction, comprising: a headframe on which a drawbridge body is mounted; an installation groove is formed on the inner wall of the drawbridge body, a locking block is integrally formed on the inner wall of the installation groove, an installation strip is slidably mounted inside the installation groove, an arc groove is formed on the bottom surface of the installation strip, a locking groove is formed on the side wall of the installation strip, and installation holes are formed on the surface of the drawbridge body; a guide wheel structure is mounted on the drawbridge body, the guide wheel structure including bolts. This utility model reduces the weight of the guide wheel by creating slots inside the rotating shaft and the guide wheel disc, and further reduces the resistance of the guide wheel disc during rotation by rotatably connecting the rotating shaft to the fixed shaft via bearings. This allows the guide wheel disc to rotate quickly when the material is transmitted across its surface, reducing friction on the material and ensuring a better user experience.
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Description

Technical Field

[0001] This utility model relates to the field of drawbridge technology, specifically a drawbridge that can reduce friction. Background Technology

[0002] Stranding machines are widely used for stranding various soft and hard conductor wires and electronic wires. The stranding bow, as the core component of the stranding machine, plays a crucial role and has a significant impact on the quality of the stranded wire.

[0003] In response, Chinese patent application number CN201621227784.2 discloses a copper wire bow, comprising a head frame, a tail frame, and an arc-shaped bow body disposed between the head frame and the tail frame. The arc-shaped bow bodies are two in number and symmetrically arranged. A guide wheel seat is provided inside the arc-shaped bow body, and a guide wheel body that rotates freely around its own axis is mounted on the guide wheel seat. The axis of the guide wheel body is perpendicular to the length direction of the arc-shaped bow body. Each arc-shaped bow body has at least three guide wheel seats, distributed along the length direction of the arc-shaped bow body. This utility model utilizes the guide wheel body to replace the guide sleeve, changing sliding friction to rolling friction, resulting in low frictional resistance, preventing damage to the copper wire, a long service life for the guide wheel body, and a simple structure.

[0004] The drawbone can reduce the friction between itself and the material by setting a guide wheel body. However, the existing guide wheel is a solid structure with a large weight. When the material is conveyed on its surface, a large friction force is required to drive it to rotate. Therefore, the guide wheel will still cause a large friction force on the material before it rotates.

[0005] Therefore, in order to solve the above problems, a drawbar that can reduce friction is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a winch that can reduce friction, in order to solve the problem mentioned in the background art that the guide wheel in the prior art is a solid structure with a large self-weight. When the material is conveyed on its surface, a large frictional force is required to drive it to rotate. Therefore, the guide wheel still causes a large frictional force on the material before rotation.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a drawbow that can reduce friction, comprising: a headframe, on which the drawbow body is mounted;

[0008] The inner wall of the bow body is provided with an installation groove, the inner wall of the installation groove is integrally formed with a locking block, the installation strip is slidably installed inside the installation groove, the bottom surface of the installation strip is provided with an arc groove, the side wall of the installation strip is provided with a locking groove, and the surface of the bow body is provided with an installation hole.

[0009] The main body of the drawbone is equipped with a guide wheel structure, which includes a bolt. The bolt passes through the inner side of the mounting hole. A washer is fitted on the outer side of the upper end of the bolt. A nut is threaded onto the outer side of the upper end of the bolt. A fixed shaft is fixedly connected to the bottom end of the bolt. A rotating shaft is movably mounted on the inner side of the fixed shaft through a bearing. A guide wheel disk is integrally formed on the middle surface of the rotating shaft. The rotating shaft and the guide wheel disk have slots inside.

[0010] Preferably, the locking block is engaged inside the locking slot, and the surface of the mounting strip protrudes from the surface of the bow body.

[0011] Preferably, the arc groove is vertically aligned with the guide wheel disk, and the arc groove is adapted to the guide wheel disk.

[0012] Preferably, the bolt passes through the bow body via a mounting hole, and the washer and nut are located on the outside of the bow body.

[0013] Preferably, the nut and washer abut against the bow body.

[0014] Preferably, the bolts are provided in two sets, with the two sets of bolts located at both ends of the rotating shaft.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: By opening a slot inside the rotating shaft and the guide wheel, the self-weight of the guide wheel can be reduced. Furthermore, the rotating shaft is rotatably connected to the fixed shaft through a bearing, which can further reduce the resistance when the guide wheel rotates. This allows the guide wheel to rotate quickly when the material is transmitted on the surface of the guide wheel, thereby reducing friction on the material and ensuring a good user experience.

[0016] This utility model features a guide wheel structure. An installation strip is mounted inside the installation groove, allowing a locking block to engage within the groove. This enables the installation strip to be installed at the bottom of the drawbar body. A bolt is inserted upwards through the installation hole into the drawbar body. A washer is placed on the upper end of the bolt, positioned on the top surface of the drawbar body. A nut is screwed onto the upper outer side of the bolt, securing it to the drawbar body via threads. The guide wheel, in conjunction with the installation strip, limits material movement, effectively preventing material from detaching from the guide wheel surface and ensuring continuous production. The rotating shaft and guide wheel have internal slots to reduce the guide wheel's weight. Furthermore, the rotating shaft is rotatably connected to the fixed shaft via bearings, further reducing resistance during guide wheel rotation. This allows the guide wheel to rotate quickly when material travels across its surface, minimizing friction and improving user experience. Attached Figure Description

[0017] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a bottom view schematic diagram of the guide wheel structure of this utility model;

[0019] Figure 3 This is an exploded view of the guide wheel structure of this utility model from below;

[0020] Figure 4 This is a side view sectional diagram of the hollow groove structure of this utility model.

[0021] In the diagram: 1. Head frame; 11. Bow body; 12. Mounting slot; 13. Locking block; 14. Mounting strip; 15. Arc groove; 16. Locking slot; 17. Mounting hole; 2. Guide wheel structure; 21. Bolt; 22. Washer; 23. Nut; 24. Fixed shaft; 25. Rotating shaft; 26. Guide wheel disc; 27. Empty slot. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-4 The present invention provides an embodiment of a drawbar that can reduce friction:

[0024] The head frame 1, the bow body 11, and the mounting hole 17 used in this application are products that can be purchased directly from the market. Their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be described in detail here.

[0025] A drawbow that can reduce friction includes: a head frame 1, on which a drawbow body 11 is mounted;

[0026] An installation groove 12 is provided on the inner wall of the bow body 11. A locking block 13 is integrally formed on the inner wall of the installation groove 12. An installation strip 14 is slidably installed inside the installation groove 12. An arc groove 15 is provided on the bottom surface of the installation strip 14. A locking groove 16 is provided on the side wall of the installation strip 14. An installation hole 17 is provided on the surface of the bow body 11.

[0027] A guide wheel structure 2 is installed on the main body 11 of the drawbone. The guide wheel structure 2 includes a bolt 21, which passes through the inner side of the mounting hole 17. A washer 22 is fitted on the outer side of the upper end of the bolt 21. A nut 23 is threadedly connected to the outer side of the upper end of the bolt 21. A fixed shaft 24 is fixedly connected to the bottom end of the bolt 21. A rotating shaft 25 is movably installed on the inner side of the fixed shaft 24 through a bearing. A guide wheel disk 26 is integrally formed on the middle surface of the rotating shaft 25. A slot 27 is opened inside the rotating shaft 25 and the guide wheel disk 26. By opening a slot 27 inside the rotating shaft 25 and the guide wheel disk 26, the weight of the guide wheel disk 26 can be reduced. Furthermore, the rotating shaft 25 is rotatably connected to the fixed shaft 24 through the bearing, which can further reduce the resistance when the guide wheel disk 26 rotates. This allows the guide wheel disk 26 to rotate quickly when the material is transmitted on the surface of the guide wheel disk 26, thereby reducing friction on the material and ensuring the user experience of the device.

[0028] Furthermore, the locking block 13 is locked inside the slot 16, and the surface of the mounting strip 14 is exposed on the surface of the bow body 11. The locking block 13 cooperates with the slot 16 to provide a limit for the installation of the mounting strip 14 inside the mounting groove 12.

[0029] Furthermore, the arc groove 15 is aligned vertically with the guide wheel disk 26, and the arc groove 15 is compatible with the guide wheel disk 26. The arc groove 15, in conjunction with the guide wheel disk 26, can limit the material and effectively prevent the material from detaching from the surface of the guide wheel disk 26, thus ensuring the continuous operation of production.

[0030] Furthermore, the bolt 21 passes through the drawbone body 11 via the mounting hole 17, and the washer 22 and nut 23 are located on the outside of the drawbone body 11. The mounting hole 17 provides a connection position for the bolt 21 to be installed on the drawbone body 11.

[0031] Furthermore, the nut 23, in conjunction with the washer 22, abuts against the bow body 11, and the washer 22, in conjunction with the nut 23, provides a limit for the installation of the bolt 21 on the bow body 11.

[0032] Furthermore, two sets of bolts 21 are provided, with the two sets of bolts 21 located at both ends of the rotating shaft 25 respectively. The two sets of bolts 21 can provide positioning for the installation of the rotating shaft 25 from both sides.

[0033] Working principle: During assembly, the mounting strip 14 is installed inside the mounting groove 12, so that the locking block 13 is locked inside the groove 16, that is, the mounting strip 14 can be installed at the bottom of the drawbone body 11. The bolt 21 is inserted upward through the mounting hole 17 into the drawbone body 11. The washer 22 is placed on the upper end of the bolt 21, so that the washer 22 is located on the top surface of the drawbone body 11. The nut 23 is screwed on the upper outer side of the bolt 21. The nut 23 can fix the bolt 21 to the drawbone body 11 through the thread.

[0034] In use, the guide wheel 26, together with the mounting strip 14, can limit the material and effectively prevent the material from detaching from the surface of the guide wheel 26, thus ensuring continuous production. The rotating shaft 25 and the guide wheel 26 have slots 27 inside, which can reduce the weight of the guide wheel 26. The rotating shaft 25 is rotatably connected to the fixed shaft 24 through bearings, which can further reduce the resistance when the guide wheel 26 rotates, so that when the material is transmitted on the surface of the guide wheel 26, the guide wheel 26 can rotate quickly, thereby reducing friction on the material and ensuring the user experience of the device.

[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A drawbridge that reduces friction, comprising: Head frame (1), on which the bow body (11) is mounted. Its features are: The inner wall of the bow body (11) is provided with an installation groove (12), and a locking block (13) is integrally formed on the inner wall of the installation groove (12). An installation strip (14) is slidably installed inside the installation groove (12). An arc groove (15) is provided on the bottom surface of the installation strip (14). A locking groove (16) is provided on the side wall of the installation strip (14). An installation hole (17) is provided on the surface of the bow body (11). The bow body (11) is equipped with a guide wheel structure (2), which includes a bolt (21). The bolt (21) passes through the inner side of the mounting hole (17). A washer (22) is fitted on the outer side of the upper end of the bolt (21). A nut (23) is threadedly connected to the outer side of the upper end of the bolt (21). A fixed shaft (24) is fixedly connected to the bottom end of the bolt (21). A rotating shaft (25) is movably installed on the inner side of the fixed shaft (24) through a bearing. A guide wheel disk (26) is integrally formed on the middle surface of the rotating shaft (25). A slot (27) is opened inside the rotating shaft (25) and the guide wheel disk (26).

2. The drawbar with reduced friction according to claim 1, characterized in that: The locking block (13) is locked inside the slot (16), and the surface of the mounting strip (14) is exposed on the surface of the bow body (11).

3. The drawbar with reduced friction according to claim 1, characterized in that: The arc groove (15) is aligned vertically with the guide wheel disk (26), and the arc groove (15) is adapted to the guide wheel disk (26).

4. A drawbridge with reduced friction according to claim 1, characterized in that: The bolt (21) passes through the bow body (11) via the mounting hole (17), and the washer (22) and nut (23) are located on the outside of the bow body (11).

5. A drawbridge with reduced friction according to claim 1, characterized in that: The nut (23) and the washer (22) abut against the bow body (11).

6. A drawbridge with reduced friction according to claim 1, characterized in that: The bolts (21) are provided in two sets, and the two sets of bolts (21) are located at both ends of the rotating shaft (25).