Novel lower adjusting mechanism of ar tube mill

By using a combination of copper nuts, lead screws, worm gears, and worm wheels in the adjustment mechanism of the AR tube rolling mill, the problem of screw breakage was solved, and the stability and ease of maintenance of the mechanism were improved.

CN224673473UActive Publication Date: 2026-08-25LIAOCHENG ANTAI PETROLEUM MACHINERY
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Patent Information

Application Number
CN202521928235.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-09
Publication Date
2026-08-25
Estimated Expiration
2035-09-09

AI Technical Summary

Technical Problem

The fixing screws of the adjustment mechanism and the outer wall screws of the worm gear reducer of the existing AR tube rolling mill are prone to breakage, resulting in short service life and inconvenient maintenance.

Method used

The lower adjustment seat is installed using a copper nut, and the force is distributed to the main unit through a combination structure of lead screw, worm gear and worm wheel, which reduces the tension of the screw, avoids screw breakage, and extends the service and maintenance time.

Benefits of technology

This effectively prevents the breakage of the fixing screws and the screws on the outer wall of the worm gear reducer, extending the use and maintenance time of the lower adjustment mechanism.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to AR pipe mill technical field especially relates to a new type AR pipe mill lower adjusting mechanism, including lower adjusting seat, the both sides of lower adjusting seat's top are provided with copper nut, the bottom bolted joint of lower adjusting seat has speed reducer box body, the bottom bolted joint of speed reducer box body has end cover, the top bearing of end cover is connected with worm, the staff installs lower adjusting seat on host computer through copper nut, installs from top to bottom, such whole acting force is scattered to host computer, and the screw bears the tension is reduced, secondly, copper nut is installed in lower adjusting seat, and the force is on lower adjusting seat, then, screw rod rotation drives worm rotation, worm rotation drives worm wheel synchronous rotation, so that speed reducer box body only needs to drive rotation with screw rod, through this optimization, the fixed screw of lower adjusting seat and the screw of turbine speed reducer outer wall do not appear the phenomenon of fracture, prolongs the use and maintenance time of lower adjusting mechanism.
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Description

Technical Field

[0001] This utility model belongs to the field of AR tube rolling mill technology, and in particular relates to a novel AR tube rolling mill lower adjustment mechanism. Background Technology

[0002] The AR tube rolling mill is configured with upper and lower guide discs and left and right rolls, which can roll thin-walled tubes with extremely high precision. The rolls and guide discs form a closed die to ensure the precision of the steel tube. To ensure the precision of each part, it is necessary to ensure the stability of the operation of each part. Because the environment in which the lower guide disc adjustment mechanism is located is extremely harsh, problems such as short fixing screws, jammed adjusting screws, and broken pressure cap screws of the worm gear reducer often occur, which brings great trouble to the service life and daily maintenance.

[0003] In existing seamless tube rolling processes, the force of the guide plate is entirely distributed to the screws. After a period of use, the screws break. Each replacement requires the removal of all hot tools, which is time-consuming and inconvenient for maintenance. Therefore, we propose a new type of adjustment mechanism for AR tube rolling mills. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned technical problems by providing a novel lower adjustment mechanism for AR tube rolling mills, thereby preventing the breakage of the fixing screws of the lower adjustment seat and the screws on the outer wall of the worm gear reducer.

[0005] In view of this, the present invention provides a novel lower adjustment mechanism for an AR tube rolling mill, comprising a lower adjustment seat, copper nuts on both sides of the top end of the lower adjustment seat, a reducer housing bolted to the bottom end of the lower adjustment seat, an end cover bolted to the bottom end of the reducer housing, a worm gear bearing connected to the top end of the end cover, a worm wheel meshing with the outer wall of the worm gear, a lead screw fixedly connected to the top end of the worm gear penetrating the interior of the lower adjustment seat, a pressure cap provided at the connection between the lead screw and the lower adjustment seat, a positioning block installed at the bottom end of the pressure cap, and a dust cover provided at the top end of the lead screw.

[0006] Based on the above structure, the workers installed the lower adjusting seat on the main unit using copper nuts, installing it from top to bottom. This disperses the force to the main unit, reducing the tension on the screws. Secondly, with the copper nuts installed on the lower adjusting seat, the force is applied to the lower adjusting seat. Then, the lead screw rotates, driving the worm gear to rotate, which in turn drives the worm wheel to rotate synchronously. This means the reducer housing only needs to be rotated by the lead screw. Through this modification and optimization, no breakage occurred in the fixing screws of the lower adjusting seat or the screws on the outer wall of the worm gear reducer, extending the service and maintenance time of the lower adjusting mechanism.

[0007] Preferably, the lower adjustment seat is Y-shaped. In this embodiment, setting the lower adjustment seat in a Y shape helps to improve the structural strength of the lower adjustment seat.

[0008] Preferably, four sets of copper nuts are provided, and the four sets of copper nuts are located at the top four corners of the lower adjustment seat. In this embodiment, by providing four sets of copper nuts, it is beneficial to improve the connection strength between the lower adjustment seat and the main unit.

[0009] Preferably, the lead screw forms a positioning structure between the positioning block and the pressure cap. In this embodiment, this helps to improve the stability of the lead screw and prevent the lead screw from deviating.

[0010] Preferably, the central axis of the lead screw coincides with the central axis of the worm. In this embodiment, this facilitates the rotation of the lead screw to drive the rotation of the worm, and avoids the worm and the lead screw from shifting.

[0011] Preferably, the central axis of the worm wheel is perpendicular to the central axis of the worm. In this embodiment, it is convenient for the lead screw to rotate and drive the worm to rotate, and the worm to rotate and drive the worm wheel to rotate synchronously, so that the reducer housing only needs to rotate the lead screw.

[0012] The beneficial effects of this utility model are: In this new AR tube rolling mill lower adjustment mechanism, the lower adjustment seat is installed on the main unit from top to bottom using copper nuts. This distributes the force across the main unit, reducing the tension on the screws. The copper nuts are then installed on the lower adjustment seat, where the force is concentrated. The lead screw rotates, driving the worm gear, which in turn drives the worm wheel. This means the reducer housing only needs to rotate the lead screw. Through this modification and optimization, no breakage has been observed in the fixing screws of the lower adjustment seat or the screws on the outer wall of the worm gear reducer, extending the service and maintenance time of the lower adjustment mechanism. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the lower adjustment seat of this utility model; Figure 3 This is a schematic diagram of the internal structure of the reducer housing of this utility model; Figure 4 This is a schematic cross-sectional view of the overall structure of this utility model.

[0014] The markings in the diagram are as follows: 1. Lower adjusting seat; 101. Copper nut; 2. Gearbox housing; 3. End cover; 4. Worm gear; 5. Worm wheel; 6. Lead screw; 7. Pressure cover; 8. Positioning block; 9. Dust cover. Detailed Implementation

[0015] The following is in conjunction with the appendix Figure 1 - Figure 4 This application will be described in further detail.

[0016] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0017] This application discloses a novel AR tube rolling mill lower adjustment mechanism, including a lower adjustment seat 1. Copper nuts 101 are provided on both sides of the top of the lower adjustment seat 1. A reducer housing 2 is bolted to the bottom of the lower adjustment seat 1. An end cover 3 is bolted to the bottom of the reducer housing 2. A worm gear 4 is bearing-connected to the top of the end cover 3. A worm wheel 5 meshes with the outer wall of the worm gear 4. A lead screw 6 that penetrates the interior of the lower adjustment seat 1 is fixedly connected to the top of the worm gear 4. A pressure cover 7 is provided at the connection between the lead screw 6 and the lower adjustment seat 1. A positioning block 8 is installed at the bottom of the pressure cover 7. A dust cover 9 is provided at the top of the lead screw 6.

[0018] Based on the above structure, the workers installed the lower adjusting seat 1 on the main unit using copper nuts 101, installing it from top to bottom. This disperses the force to the main unit, reducing the tension on the screws. Secondly, with copper nuts 101 installed on the lower adjusting seat 1, the force is applied to the lower adjusting seat 1. Then, the lead screw 6 rotates, driving the worm gear 4 to rotate, which in turn drives the worm wheel 5 to rotate synchronously. This allows the reducer housing 2 to rotate only by driving the lead screw 6. Through this modification and optimization, no breakage occurred in the fixing screws of the lower adjusting seat 1 or the screws on the outer wall of the worm gear reducer, extending the service and maintenance time of the lower adjusting mechanism.

[0019] In one embodiment, the lower adjustment seat 1 is Y-shaped.

[0020] In this embodiment, by setting a "Y"-shaped lower adjustment seat 1, it is beneficial to improve the structural strength of the lower adjustment seat 1.

[0021] In one embodiment, four sets of copper nuts 101 are provided, and the four sets of copper nuts 101 are located at the top four corners of the lower adjustment seat 1.

[0022] In this embodiment, by setting four sets of copper nuts 101, the connection strength between the lower adjustment seat 1 and the main unit is improved.

[0023] In one embodiment, the lead screw 6 forms a positioning structure between the positioning block 8 and the pressure cap 7.

[0024] In this embodiment, it is beneficial to improve the stability of the lead screw 6 and prevent the lead screw 6 from deviating.

[0025] In one embodiment, the central axis of the lead screw 6 coincides with the central axis of the worm gear 4.

[0026] In this embodiment, the rotation of the lead screw 6 drives the worm 4 to rotate, thus preventing the worm 4 from deviating from the lead screw 6.

[0027] In one embodiment, the central axis of the worm gear 5 is perpendicular to the central axis of the worm 4.

[0028] In this embodiment, the lead screw 6 rotates to drive the worm gear 4 to rotate, and the worm gear 4 rotates to drive the worm wheel 5 to rotate synchronously, so that the reducer housing 2 only needs to drive the lead screw 6 to rotate.

[0029] In this embodiment, the new AR tube rolling mill lower adjustment mechanism is used in the following way: First, the operator installs the lower adjustment seat 1 on the main machine using the copper nut 101, from top to bottom. This distributes the force to the main machine, reducing the tension on the screws. Second, the copper nut 101 is installed on the lower adjustment seat 1, and the force is applied to the lower adjustment seat 1. Then, the lead screw 6 rotates, driving the worm gear 4 to rotate. The worm gear 4 rotates, driving the worm wheel 5 to rotate synchronously. This means that the reducer housing 2 only needs to rotate the lead screw 6. Through this modification and optimization, the fixing screws of the lower adjustment seat 1 and the screws on the outer wall of the worm gear reducer did not break, extending the use and maintenance time of the lower adjustment mechanism.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A novel adjustment mechanism for an AR tube rolling mill, characterized in that, The device includes a lower adjusting seat (1), with copper nuts (101) on both sides of the top of the lower adjusting seat (1). The bottom of the lower adjusting seat (1) is bolted to a reducer housing (2), and the bottom of the reducer housing (2) is bolted to an end cover (3). The top of the end cover (3) is bearing-connected to a worm (4), and a worm wheel (5) meshes with the outer wall of the worm (4). The top of the worm (4) is fixedly connected to a lead screw (6) that penetrates the interior of the lower adjusting seat (1). A pressure cover (7) is provided at the connection between the lead screw (6) and the lower adjusting seat (1). A positioning block (8) is installed at the bottom of the pressure cover (7), and a dust cover (9) is provided at the top of the lead screw (6).

2. The novel AR tube rolling mill lower adjustment mechanism according to claim 1, characterized in that: The lower adjustment seat (1) is Y-shaped.

3. The novel AR tube rolling mill lower adjustment mechanism according to claim 1, characterized in that: The copper nuts (101) are provided in four sets, and the four sets of copper nuts (101) are located at the top four corners of the lower adjustment seat (1).

4. The novel AR tube rolling mill lower adjustment mechanism according to claim 1, characterized in that: The lead screw (6) forms a positioning structure between the positioning block (8) and the pressure cap (7).

5. The novel AR tube rolling mill lower adjustment mechanism according to claim 1, characterized in that: The central axis of the lead screw (6) coincides with the central axis of the worm (4).

6. The novel AR tube rolling mill lower adjustment mechanism according to claim 1, characterized in that: The central axis of the worm wheel (5) is perpendicular to the central axis of the worm (4).