A device for quick disassembly of a hot-rolled hollow shaft rotary encoder

Abstract

A device for quickly disassembling a hot-rolled hollow shaft rotary encoder, belonging to the technical field of hot rolling equipment maintenance tools, is used to disassemble the hollow shaft rotary encoder from the motor shaft. The technical solution is as follows: the base is a U-shaped plate structure; the rear end of the base tie rod is vertically welded to the horizontal plate of the base; the front end of the base tie rod is threaded; a base tie rod nut is fitted onto the threaded front end of the base tie rod; a movable base plate is located behind the front end of the two side plates of the base; the movable base plate is vertically welded to the rear end of the base plate tie rod; the front end of the base plate tie rod is threaded; a base plate tie rod nut is fitted onto the threaded front end of the base plate tie rod; a lead screw is screwed into the lead screw hole of the ejector base; the front end of the lead screw is opposite to the base; the base tie rod and the base plate tie rod are respectively connected to the through holes and tie rod grooves at both ends of the base. This utility model can quickly disassemble the hollow shaft rotary encoder, effectively solving the problem of encoder seizing from the motor shaft and improving the work efficiency of encoder replacement.

Description

Technical Field

[0001] This utility model relates to a device for quickly disassembling a hot-rolled hollow shaft encoder from a locked motor shaft, belonging to the technical field of hot-rolling equipment maintenance tools. Background Technology

[0002] Hollow shaft rotary encoders are widely used in the hot rolling process of the metallurgical industry, playing a crucial role in production. As a core component for speed detection, the hollow shaft encoder is an indispensable part of the rolling mill speed control system. However, fluctuations in ambient temperature at the production site often cause the hollow shaft rotary encoder to seize up with the motor shaft, making disassembly extremely difficult, time-consuming, and labor-intensive. Existing disassembly methods often require the combined use of multiple tools, or even resort to forceful disassembly, which not only easily damages the encoder and motor shaft but also increases maintenance costs and equipment downtime, seriously affecting production efficiency. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a device for quickly disassembling a hot-rolled hollow shaft rotary encoder. Using this device, the locked hollow shaft rotary encoder and the motor shaft can be easily separated in a short time, and the encoder can be quickly disassembled.

[0004] The technical solution to the above technical problem is: A device for quickly disassembling a hot-rolled hollow shaft rotary encoder includes a base, a base pull rod, a base pull rod nut, a movable base plate, a base plate pull rod, a base plate pull rod nut, an ejector base, a lead screw, and a rotary handle. The base is a U-shaped plate structure. The rear end of the base pull rod is perpendicularly welded to the center of the horizontal plate of the U-shaped plate of the base. The front end of the base pull rod is threaded and passes through a through hole on one side of the ejector base. The base pull rod nut is threaded to the front end of the base pull rod. The movable base plate is a rectangular plate located behind the front ends of the two side plates of the U-shaped plate of the base. The middle part of the movable base plate is perpendicularly welded to the rear end of the base plate pull rod. The front end of the base plate pull rod is threaded, and the base plate pull rod nut is threaded to the front end of the base plate pull rod. The base is a rectangular plate. The ejector base is placed horizontally in front of the base, parallel to the base. A through hole on one side of the ejector base is fitted with the base pull rod. The diameter of the through hole on one side of the ejector base is slightly larger than the diameter of the base pull rod. There is a lead screw hole in the center of the ejector base. The lead screw and the lead screw hole of the ejector base are threaded together. The front end of the lead screw is opposite to the base. A rotating handle is installed at the rear end of the lead screw. There is a through hole at one end of the ejector base. The front end of the base pull rod passes through the through hole and is connected to the base pull rod nut. There is a pull rod groove at the other end of the ejector base. The pull rod groove is open on the top of the ejector base. The front end of the bottom plate pull rod is placed in the pull rod groove. The pull rod groove and the bottom plate pull rod are in a sliding fit. The bottom plate pull rod nut is connected to the bottom plate pull rod outside the pull rod groove of the ejector base.

[0005] The aforementioned device for quick disassembly of hot-rolled hollow shaft rotary encoder has a shaft hole on the upper part of the movable base plate, and a shaft hole at the front end of the upper side plate of the U-shaped plate of the base plate that corresponds to the shaft hole of the movable base plate. The rotating shaft rotatably connects the movable base plate and the upper side plate of the U-shaped plate of the base plate through the shaft hole.

[0006] In the aforementioned device for quick disassembly of a hot-rolled hollow shaft rotary encoder, the pull rod groove of the ejector base is a U-shaped groove, and the arc of the pull rod groove matches the arc of the bottom plate pull rod as the movable bottom plate rotates around the rotating axis.

[0007] The aforementioned device for quickly disassembling a hot-rolled hollow shaft rotary encoder has a rotary handle that is a cylindrical rod. The rear end of the lead screw has a circular hole perpendicular to the length of the lead screw. The diameter of the circular hole matches the diameter of the cylindrical rod of the rotary handle. The cylindrical rod of the rotary handle passes through the circular hole at the rear end of the lead screw. The rod of the rotary handle and the circular hole at the rear end of the lead screw are in sliding fit. A ball is fixed at one end of the rod of the rotary handle. The diameter of the ball is larger than the diameter of the circular hole of the lead screw.

[0008] In the aforementioned device for quick disassembly of hot-rolled hollow shaft rotary encoder, the connection points of the base tie rod nut, the bottom plate tie rod nut, and the through hole and tie rod groove on the outer side of the ejector base are respectively equipped with gaskets. The inner diameter of the gasket matches the diameter of the base tie rod and the bottom plate tie rod, and the outer diameter of the gasket is larger than the diameter of the through hole on the outer side of the ejector base and the width of the tie rod groove.

[0009] The beneficial effects of this utility model are: The opening of the U-shaped plate structure of the base in this invention can be inserted into the gap between the encoder and the motor shaft. Pulling the U-shaped plate structure outwards separates the encoder from the motor shaft. Rotating the base pull rod nut and the bottom plate pull rod nut on the outside of the through holes and pull rod grooves at both ends of the ejector base fixes the base pull rod and the bottom plate pull rod to the base, allowing the base to be pulled out and separating the encoder from the motor shaft. The lead screw hole of the ejector base is connected to a lead screw, with the front end of the lead screw pressing against the front end of the motor shaft. Rotating the rotating handle at the rear end of the lead screw causes the lead screw to move the ejector base outwards. The ejector base moves the base outwards via two pull rods, and the base moves the encoder outwards to separate it from the motor shaft.

[0010] This utility model has a simple structure and is easy to use. It can easily separate the locked hollow shaft rotary encoder and motor shaft in a short time, quickly complete the encoder disassembly, improve the work efficiency of replacing hollow shaft rotary encoders, avoid damage to hollow shaft encoders and motor shafts, reduce maintenance costs and equipment downtime, and improve production efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the usage state of this utility model.

[0012] The following are the markings in the diagram: base 1, base pull rod 2, base pull rod nut 3, movable base plate 4, base plate pull rod 5, base plate pull rod nut 6, ejector base 7, lead screw hole 8, lead screw 9, rotating handle 10, pull rod groove 11, rotating shaft 12, gasket 13, motor shaft 14, encoder 15, motor shaft base 16. Detailed Implementation

[0013] This utility model consists of a base 1, a base pull rod 2, a base pull rod nut 3, a movable bottom plate 4, a bottom plate pull rod 5, a bottom plate pull rod nut 6, an ejector base 7, a lead screw 9, a rotating handle 10, a rotating shaft 12, and a washer 13.

[0014] Figure 1The display shows that the base 1 has a U-shaped plate structure, which consists of two side plates and a horizontal plate. The two side plates are placed horizontally and parallel to each other, and the horizontal plate is placed behind one end of the two side plates. The surface of the horizontal plate is welded tightly to the surfaces of the two side plates. The base 1 can be inserted between the encoder 15 and the motor shaft seat 16 through the opening in the U-shaped plate structure. Then, by pulling the base 1 forward, the encoder 15 is pushed forward, thus releasing the encoder 16 from the motor shaft 14 from its locked state.

[0015] Figure 1 As shown, the base pull rod 2 is a round rod, and its rear end is welded perpendicularly to the center of the horizontal plate of the U-shaped plate of the base 1. The front end of the base pull rod 2 is threaded, and the base pull rod nut 3 is fitted onto the thread at the front end of the base pull rod 2. The base pull rod 2 can pull the base 1 forward, thereby separating the encoder 15 and the motor shaft 14.

[0016] Figure 1 The display shows that the U-shaped plate structure of the base 1 has a movable base plate 4 at one end of its opening. The movable base plate 4 is placed behind the other ends of the two side plates of the base 1. The movable base plate 4 can pull the base 1 outward from the opening end of the U-shaped plate structure. The movable base plate 4 is a rectangular plate. The rear end of the base plate pull rod 5 is vertically welded to the middle of the plate. The front end of the base plate pull rod 5 is threaded, and the base plate pull rod nut 6 is fitted onto the thread at the front end of the base plate pull rod 5.

[0017] Figure 1 The movable base plate 4 has a shaft hole at its upper part, and the front end of the upper side plate of the U-shaped plate of the base 1 has a shaft hole that corresponds to the shaft hole of the movable base plate 4. The rotating shaft 12 connects the movable base plate 4 to the upper side plate of the U-shaped plate of the base 1 through the shaft hole. In this way, when the opening of the U-shaped plate structure of the base 1 is inserted between the encoder 15 and the motor shaft seat 16, the movable base plate 4 will not affect the insertion. After insertion, the movable base plate 4 can rotate to the opening position of the U-shaped plate structure of the base 1 to pull the base 1.

[0018] Figure 1 The components that enable the base rod 2 and the bottom plate rod 5 to pull the base 1 and the movable bottom plate 4 forward are the ejector base 7 and the lead screw 9. The ejector base 7 is a rectangular plate, which is placed horizontally in front of the base 1 and parallel to the base 1. There is a lead screw hole 8 in the center of the ejector base 7. The lead screw 9 is threaded into the lead screw hole 8 of the ejector base 7. The front end of the lead screw 9 is opposite to the base 1, and a rotating handle 10 is installed at the rear end of the lead screw 9.

[0019] Figure 1The ejector base 7 has a through hole at one end, through which the front end of the base tie rod 2 passes and connects to the base tie rod nut 3. The other end of the ejector base 7 has a tie rod groove 11, which opens at the top. The front end of the bottom plate tie rod 5 is placed in the tie rod groove 11, and the bottom plate tie rod nut 6 is connected to the bottom plate tie rod 5 outside the tie rod groove 11 of the ejector base 7. When the ejector base 7 moves outward, the base tie rod nut 3 and the bottom plate tie rod nut 6 respectively drive the base tie rod 2 and the bottom plate tie rod 5 outward, thereby driving the base 1 outward. The base 1 then drives the encoder 15 outward, separating the encoder 15 from the motor shaft 14.

[0020] Figure 1 As shown, the rotary handle 10 at the rear end of the lead screw 9 is a cylindrical rod. The rear end of the lead screw 9 has a circular hole perpendicular to the length direction of the lead screw 9. The diameter of the circular hole matches the diameter of the cylindrical rod of the rotary handle 10. The cylindrical rod of the rotary handle 10 passes through the circular hole at the rear end of the lead screw 9. The rod of the rotary handle 10 and the circular hole at the rear end of the lead screw 9 are in sliding fit. A ball is fixed at one end of the rod of the rotary handle 10. The diameter of the ball is larger than the diameter of the circular hole of the lead screw 9.

[0021] Figure 1 As shown, there are washers 13 at the connection points of the base tie rod nut 3, the bottom plate tie rod nut 6 and the through hole and tie rod groove 11 on the outer side of the ejector base 7. The inner diameter of the washers 13 matches the diameter of the base tie rod 2 and the bottom plate tie rod 5, and the outer diameter of the washers 13 is larger than the diameter of the through hole on the outer side of the ejector base 7 and the width of the tie rod groove 11.

[0022] The usage process of this utility model is as follows: First, rotate the handle 10 counterclockwise to move the lead screw 9 outward from the lead screw hole 8 of the ejector base 7, and at the same time rotate the base tie rod nut 3 and the bottom plate tie rod nut 6 to leave enough clearance between the front end of the lead screw 9 and the front end of the motor shaft. Then, the ejector base 7 rotates clockwise around the pull rod 2, causing the bottom plate pull rod 5 to move out of the pull rod groove 11 of the base 7, and the movable bottom plate 4 rotates around the rotation axis 12, opening the U-shaped plate structure of the base 1. Next, insert the opening of the U-shaped plate structure of the base 1 into the gap between the encoder 15 and the motor shaft base 16, rotate the movable bottom plate 4, and move the movable bottom plate 4 to the back of the two side plates of the U-shaped plate of the base 1, push out the base 7 to rotate counterclockwise around the pull rod 2, and the bottom plate pull rod 5 is embedded into the pull rod groove 11 of the base 7. Rotate the base tie rod nut 3 and the bottom plate tie rod nut 6 to adjust the position of the clamping base 7 so that the clamping base 7 is parallel to the base 1. Rotate the rotating handle 10 clockwise so that the front end of the lead screw 9 presses against the center position of the motor shaft 14. Finally, rotate the handle 10 clockwise, and the lead screw 9 pushes the motor shaft 14 forward. The lead screw hole 8 of the clamping base 7 moves outward along the lead screw 9, causing the clamping base 7 to move outward as a whole. The clamping base 7 drives the base 1 to move outward through the base pull rod 2 and the bottom plate pull rod 5. The base 1 drives the encoder 15 to move outward, thereby separating the encoder 15 from the motor shaft 14 and achieving the purpose of releasing the encoder 15 from the locked state of the motor shaft 14.

[0023] An embodiment of this utility model is as follows: The two side plates of base 1 are 130mm long, 30mm wide, and 5mm thick, and the horizontal plate is 125mm long, 30mm wide, and 5mm thick. The diameter of the base pull rod 2 is 8mm and the length is 145mm; The movable film 4 is 125mm long, 30mm wide, and 5mm thick; the rotating shaft 12 is 5mm in diameter and 10mm long. The diameter of the film pull rod 5 is 8mm and the length is 145mm; The ejector base 7 has a length of 195mm, a width of 30mm, a thickness of 15mm, a lead screw hole 8 with a diameter of 10mm, and a pull rod groove 11 with a diameter of 10mm and a length of 20mm. The diameter of lead screw 9 is 10mm and its length is 120mm; The diameter of the rotating handle 10 is 12mm and the length is 200mm.

Claims

1. A device for quickly disassembling a hot-rolled hollow shaft rotary encoder, characterized in that: It includes a base (1), a base tie rod (2), a base tie rod nut (3), a movable base plate (4), a base plate tie rod (5), a base plate tie rod nut (6), an ejector base (7), a lead screw (9), and a rotating handle (10). The base (1) is a U-shaped plate structure. The rear end of the base tie rod (2) is perpendicularly welded to the center of the horizontal plate of the U-shaped plate of the base (1). The front end of the base tie rod (2) is threaded. The base tie rod (2) passes through the through hole on one side of the ejector base (7). The tie rod nut (3) is threaded to the front end of the base tie rod (2). The movable base plate (4) is a rectangular plate. The movable base plate (4) is located behind the front ends of the two side plates of the U-shaped plate of the base (1). The middle part of the movable base plate (4) is vertically welded to the rear end of the base plate tie rod (5). The front end of the base plate tie rod (5) is threaded. The base plate tie rod nut (6) is threaded to the front end of the base plate tie rod (5). The ejector base (7) is a rectangular plate. The ejector base (7) is placed horizontally on the base. In front of the base (1), the ejector base (7) is parallel to the base (1). The through hole on one side of the ejector base (7) is fitted into the base tie rod (2). The diameter of the through hole on one side of the ejector base (7) is larger than the diameter of the base tie rod (2). There is a screw hole (8) in the center of the ejector base (7). The screw (9) and the screw hole (8) of the ejector base (7) are threaded together. The front end of the screw (9) is opposite to the base (1). A rotating handle (10) is installed at the rear end of the screw (9). One end has a through hole, and the front end of the base pull rod (2) passes through the through hole and is connected to the base pull rod nut (3). The other end of the ejector base (7) has a pull rod groove (11). The pull rod groove (11) opens on the top of the ejector base (7). The front end of the bottom plate pull rod (5) is placed in the pull rod groove (11). The pull rod groove (11) and the bottom plate pull rod (5) are in sliding fit. The bottom plate pull rod nut (6) is connected to the bottom plate pull rod (5) outside the pull rod groove (11) of the ejector base (7).

2. The device for quickly disassembling a hot-rolled hollow shaft rotary encoder according to claim 1, characterized in that: The movable base plate (4) has a shaft hole at its upper part, and the front end of the upper side plate of the U-shaped plate of the base (1) has a shaft hole corresponding to the shaft hole of the movable base plate (4). The rotating shaft (12) rotatably connects the movable base plate (4) and the upper side plate of the U-shaped plate of the base (1) through the shaft hole.

3. The device for quickly disassembling a hot-rolled hollow shaft rotary encoder according to claim 2, characterized in that: The pull rod groove (11) of the ejector base (7) is a U-shaped groove, and the arc of the pull rod groove (11) matches the arc of the bottom plate pull rod (5) as the movable bottom plate (4) rotates around the rotation axis (12).

4. The device for quickly disassembling a hot-rolled hollow shaft rotary encoder according to claim 1, characterized in that: The rotary handle (10) is a cylindrical rod. The rear end of the lead screw (9) has a circular hole perpendicular to the length direction of the lead screw. The diameter of the circular hole matches the diameter of the cylindrical rod of the rotary handle (10). The cylindrical rod of the rotary handle (10) passes through the circular hole at the rear end of the lead screw (9). The rod of the rotary handle (10) and the circular hole at the rear end of the lead screw (9) are in sliding fit. A ball is fixed at one end of the rod of the rotary handle (10). The diameter of the ball is larger than the diameter of the circular hole of the lead screw.

5. The device for quickly disassembling a hot-rolled hollow shaft rotary encoder according to claim 1, characterized in that: The base tie rod nut (3), the bottom plate tie rod nut (6) and the connection between the through hole and the tie rod groove (11) on the outer side of the ejector base (7) are respectively equipped with a washer (13). The inner diameter of the washer (13) matches the diameter of the base tie rod (2) and the bottom plate tie rod (5). The outer diameter of the washer (13) is greater than the diameter of the through hole on the outer side of the ejector base (7) and the width of the tie rod groove (11).

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