Lead screw thread cleaning knife

Abstract

The utility model discloses a lead screw thread trash removal cutter, and belongs to the technical field of trash removal cutters, the lead screw thread trash removal cutter comprises a nut body, two screw holes are formed in one end of the nut body in the axial direction, the nut body is in threaded connection with two bolts through the two screw holes, and shaft bodies of the two bolts are slidably sleeved with column bases; a limiting spring is connected between the opposite ends of the two column bases, a supporting column is fixedly installed on the side wall of one column base, a supporting plate is fixedly installed at the end, away from the column base, of the supporting column, a cutter used for cleaning screw threads is fixedly installed at the end, away from the column base, of the supporting plate, and a round corner is arranged at the bottom end of the cutter. And the fillet of the cutter is matched with the thread root of the lead screw. The rolling mill roller replacement device is provided with a structure for cleaning impurities in the screw threads, a nut can be conveniently detached, the replacement efficiency of a rolling mill roller is improved, and the device is suitable for popularization.

Description

Technical Field

[0001] The present application relates to the technical field of cleaning knives, and more specifically, to a screw thread cleaning knife. Background Art

[0002] The flat rolling mill and reducer in the rough and medium rolling area of ​​the new high-speed line of the long product plant are connected by a universal joint. In order to prevent the universal joint from disengaging from the roller, an iron pipe is welded to the end of the movable shaft of the universal joint. One end of the lead screw with a nut is inserted into the iron pipe, and the other end is welded to the fixed end of the universal joint. The nut is pressed against the iron pipe to prevent the universal joint from disengaging from the roller.

[0003] Due to the long cycle of replacing the rollers in rough rolling, a layer of barrier film is easily attached to the bottom of the screw thread in an environment of water mist, dust, oil, etc. The barrier film increases the thread diameter of the screw. When replacing the rolling rollers, the nut will be difficult to loosen due to the barrier film on the screw. Therefore, in order to solve this problem, we propose a screw thread cleaning knife. Utility Model Content

[0004] In order to solve the above problems, the present application provides a screw thread cleaning knife, which adopts the following technical solutions:

[0005] A screw thread cleaning knife comprises a nut body, wherein two screw holes are arranged at one end of the nut body along the axial direction, and the nut body is threadedly connected to two bolts through the two screw holes, and the shafts of the two bolts are slidably sleeved with column seats, and a limiting spring is connected between the opposite ends of the two column seats, and a support column is fixedly installed on the side wall of one of the column seats, and a support plate is fixedly installed on the end of the support column away from the column seat, and a tool for cleaning the screw thread is fixedly installed on the end of the support plate away from the column seat.

[0006] Preferably, the side wall of the column seat is provided with a through hole matching the bolt shaft, and a shaft sleeve is fixedly mounted on the inner wall of the through hole of the column seat, and the shaft sleeve is rotatably sleeved with the bolt shaft.

[0007] Preferably, a reinforcement column is fixedly mounted on the opposite ends of the two column seats, and the reinforcement column is sleeved with the adjacent limit spring.

[0008] Preferably, the bottom end of the tool is provided with a rounded corner, and the rounded corner of the tool matches the thread bottom of the lead screw.

[0009] In summary, this application includes the following beneficial technical effects:

[0010] By installing the nut body and the tool, during the process of removing the nut body, the tool is attached to the bottom of the screw thread under the action of the limit spring, and impurities in the front screw thread are cleaned in advance, so that the nut body can rotate normally. It has a cleaning structure for impurities in the screw thread, which facilitates the removal of the nut and improves the replacement efficiency of the rolling mill rolls. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of this application;

[0012] Figure 2 This is a diagram of the installation structure of the bolts of this application;

[0013] Figure 3 This is the installation structure diagram of the tool of this application.

[0014] Description of the numbers in the figure:

[0015] 1. Nut body; 2. Bolt; 3. Column seat; 4. Bushing; 5. Limit spring; 6. Reinforcement column; 7. Support column; 8. Support plate; 9. Cutting tool. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0017] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0018] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0019] The following is combined with Figure 1-3 This application is described in further detail.

[0020] See also Figure 1-3 , a screw thread cleaning knife comprises a nut body 1, two screw holes are arranged at one end of the nut body 1 along the axial direction, and space is reserved. The nut body 1 is threadedly connected with two bolts 2 through the two screw holes, which has a supporting function. The shaft bodies of the two bolts 2 are slidably sleeved with column seats 3, which has a supporting function. A through hole matching the shaft body of the bolt 2 is arranged on the side wall of the column seat 3, and space is reserved. A shaft sleeve 4 is fixedly installed on the inner wall of the through hole of the column seat 3. The shaft sleeve 4 is rotatably sleeved with the shaft body of the bolt 2, which has a wear-resistant effect. A limit spring 5 is connected between the ends of the two column seats 3 facing each other. , with elastic connection function, reinforcement columns 6 are fixedly installed at the ends facing each other of the two column seats 3, and the reinforcement columns 6 are sleeved with the adjacent limit springs 5, and have a supporting function, and a support column 7 is fixedly installed on the side wall of one of the column seats 3, and has a supporting function, and a support plate 8 is fixedly installed at the end of the support column 7 away from the column seat 3, and has a supporting function, and a tool 9 for cleaning the screw thread is fixedly installed at the end of the support plate 8 away from the column seat 3, and the bottom end of the tool 9 is provided with a rounded corner, and the rounded corner of the tool 9 matches the thread bottom of the screw, and has the function of removing water mist, dust, oil, etc. in the screw thread.

[0021] The implementation principle of the embodiment of the present application is as follows: a device for cleaning impurities in the bottom of the thread is installed on the side of the nut body 1, and the device includes a bolt 2, a column seat 3, a limit spring 5, and a tool 9, wherein the width of the tool 9 is slightly smaller than the pitch of the screw thread, and the inner diameter of the sleeve 4 on the column seat 3 is slightly larger than the diameter of the bolt 2, and can rotate on the bolt 2. During the process of removing the nut body 1, the tool 9 is attached to the bottom of the screw thread under the action of the limit spring 5, and impurities in the front screw thread are cleaned in advance, so that the nut body 1 can rotate normally.

[0022] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A screw thread cleaning knife, comprising a nut body (1), characterized in that: The nut body (1) is provided with two screw holes at one end along the axial direction, and the nut body (1) is threadedly connected to two bolts (2) through the two screw holes. The shafts of the two bolts (2) are slidably sleeved with column seats (3), and a limit spring (5) is connected between the two ends of the column seats (3) facing each other. A support column (7) is fixedly installed on the side wall of one of the column seats (3), and a support plate (8) is fixedly installed on the end of the support column (7) away from the column seat (3), and a tool (9) for cleaning the screw thread is fixedly installed on the end of the support plate (8) away from the column seat (3).

2. The screw thread cleaning knife according to claim 1, characterized in that: The side wall of the column seat (3) is provided with a through hole matching the shaft body of the bolt (2); the inner wall of the through hole of the column seat (3) is fixedly mounted with a shaft sleeve (4); the shaft sleeve (4) and the shaft body of the bolt (2) are rotatably sleeved.

3. The screw thread cleaning knife according to claim 1, characterized in that: A reinforcement column (6) is fixedly mounted on the facing ends of the two column seats (3), and the reinforcement column (6) is sleeve-connected with the adjacent limit spring (5).

4. The screw thread cleaning knife according to claim 1, characterized in that: The bottom end of the tool (9) is provided with a rounded corner, and the rounded corner of the tool (9) matches the thread bottom of the lead screw.

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