一种两端固定式丝杆支承结构

Abstract

本实用新型公开了一种两端固定式丝杆支承结构，涉及丝杆加工技术领域。本实用新型包括丝杆和固定连接在丝杆外壁的轴肩，还包括：调节部，所述调节部安装在轴肩外；固定部，所述固定部位于丝杆外；所述调节部包括转动组件，所述转动组件设置在轴肩外；以及限位组件，所述限位组件安装在丝杆外；所述转动组件包括设置在丝杆外的拉伸端轴承座，所述丝杆贯穿拉伸端轴承座，所述轴肩位于拉伸端轴承座内。本实用新型通过设置调节部，解决了现有的支承结构在使用过程中，不便于对拉伸端轴承预紧力进行调节，需要工作人员反复地拆卸安装，将预紧力调节到合适的区间，从而延长了整体的加工周期，影响了加工效率的问题。

Claims

1. A fixed-fixed screw support structure comprising a screw (101) and a shoulder (102) fixedly connected to the outer wall of the screw (101), characterized in that, Also includes: Adjustment part (2), said adjustment part (2) is installed outside the shoulder (102); The fixing part (3) is located outside the lead screw (101); The adjusting part (2) includes a rotating assembly (21) disposed outside the shoulder (102); and A limiting component (22) is mounted outside the lead screw (101); The rotating assembly (21) includes a tension end bearing seat (211) disposed outside the lead screw (101), the lead screw (101) passes through the tension end bearing seat (211), the shoulder (102) is located inside the tension end bearing seat (211), the bottom of the tension end bearing seat (211) is provided with a tension end bearing end cover (212), a spacer (213) is provided inside the tension end bearing end cover (212), the lead screw (101) is located inside the spacer (213), a locking nut (214) is sleeved on the outer wall of the lead screw (101), and the inner wall of the locking nut (214) is threadedly connected to the lead screw (101). Among them, spacer 1 (213) is a ring block.

2. The two-end fixed type lead screw support structure according to claim 1, wherein The fixing part (3) includes a support assembly (31) which is mounted outside the lead screw (101); and Locking assembly (32), the locking assembly (32) being located outside the lead screw (101); The support component (31) is located outside the locking component (32).

3. The two-end fixed type lead screw support structure according to claim 2, wherein The limiting component (22) includes three lead screw support bearings (221) disposed in the tension end bearing seat (211), and a spacer (222) is slidably connected to the inner wall of the tension end bearing seat (211), and a limiting component is provided above the spacer (222). Among them, the second spacer (222) is a circular block, and the three lead screw support bearings (221) are arranged in a linear array.

4. The two-end fixed type lead screw support structure according to claim 3, wherein The support assembly (31) includes a fixed end bearing seat (311) disposed outside the lead screw (101), and a fixed end bearing end cap (312) is disposed on the top of the fixed end bearing seat (311). Among them, the fixed end bearing end cover (312) is a circular cover.

5. The two-end fixed type lead screw support structure according to claim 4, wherein The locking assembly (32) includes a limiting groove (321) opened on the top of the fixed end bearing seat (311), three lead screw support bearings (322) are provided in the limiting groove (321), and a fixing member is provided in the fixed end bearing end cover (312). Among them, the three lead screw support bearings (322) are arranged in a linear array.

6. The two-end fixed type lead screw support structure according to claim 5, wherein The limiting component includes a second locking nut (223) disposed on the outer wall of the shoulder (102). The inner wall of the second locking nut (223) is threadedly connected to the shoulder (102), and a protective sleeve (224) is fixedly connected to the outer wall of the second locking nut (223). Among them, the protective sleeve (224) is a circular block, and the second locking nut (223) is located inside the protective sleeve (224).

7. The two-end fixed type lead screw support structure according to claim 6, wherein The fixing part comprises a spacer three (323) arranged in the fixed end bearing end cover (312), and a locking nut three (324) arranged outside the lead screw (101), and the inner wall of the locking nut three (324) is in threaded connection with the lead screw (101). The spacer three (323) is a circular ring block and is arranged below the locking nut three (324).

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