Anti-collision protection device of vertical pipe expander

Abstract

The utility model relates to the field of pipe fitting processing equipment, especially to a vertical pipe expander anti-collision protection device, which can lock in time when the pipe and the expander are misaligned and prevent the expander from colliding with the pipe. The vertical pipe expander anti-collision protection device comprises a pipe expander, a sliding sleeve and an expander, etc. The sliding sleeve is slidably connected to the upper part of the pipe expander, and multiple expanders are slidably connected to the sliding sleeve. The utility model pulls the sliding frame to move upward on the mounting frame by pulling the rope, and the second extension spring contracts, so that the clamping frame moves along the sliding frame, drives the clamping frame to move inward on the mounting frame, and makes the clamping frame tightly lock with the pipe expander. At this time, the expander no longer moves downward, which can lock in time when the pipe and the expander are misaligned and prevent the expander from colliding with the pipe.

Description

Technical Field

[0001] This utility model relates to the field of pipe processing equipment, and in particular to an anti-collision protection device for a vertical tube expander. Background Technology

[0002] During the operation of a vertical tube expander, the expansion rod must maintain precise coaxiality with the tube fitting to successfully complete the tube expansion operation. However, due to factors such as deviations in the installation accuracy of the tube fitting, vibrations during the operation of the tube expander, and positioning errors in the material conveying, misalignment between the tube fitting and the expansion rod can easily occur.

[0003] In existing vertical tube expanders, when misalignment occurs between the tube fitting and the expander rod, the expander rod cannot stop moving in time and is prone to hard collision with the tube fitting. This not only causes equipment failures such as expansion rod deformation and tube fitting damage, increasing maintenance costs and downtime, but may also cause safety hazards due to the fragments generated by the collision, affecting the continuity and safety of production operations.

[0004] Therefore, it is necessary to design a vertical tube expander anti-collision protection device that can lock in time when the tube and the expansion rod are misaligned to prevent the expansion rod from colliding with the tube. Utility Model Content

[0005] To overcome the shortcomings of existing vertical tube expanders, such as the inability of the expansion rod to stop moving in time when misalignment occurs, which easily leads to hard collisions with the tube fittings, causing equipment failures such as expansion rod deformation and tube fitting damage, increasing maintenance costs and downtime, and potentially creating safety hazards due to debris generated by the collision, affecting the continuity and safety of production operations, this utility model provides a vertical tube expander anti-collision protection device that can lock in time when the tube fittings and expansion rod are misaligned to prevent collisions between the expansion rod and the tube fittings.

[0006] The technical implementation scheme of this utility model is as follows: A vertical tube expander anti-collision protection device includes a tube expander, a sliding sleeve, an expansion rod, a first telescopic spring, a mounting frame, rollers, a sliding frame, a second telescopic spring, a clamping frame, a limiting frame, and a drive assembly. The upper part of the tube expander is slidably connected to the sliding sleeve, and multiple expansion rods are slidably connected to the sliding sleeve. Each expansion rod is connected to the sliding sleeve by a first telescopic spring. Mounting frames are connected to both the left and right sides of the sliding sleeve. The upper and lower parts of the mounting frame are rotatably connected to two left and right rollers, and the rollers are in contact with the tube expander. Slidable frames are slidably connected to both the left and right parts of the mounting frame. Second telescopic springs are connected to the front and rear parts of the sliding frame and adjacent mounting frames. Two left and right clamping frames are slidably connected to each mounting frame, and the sliding frames are slidably engaged with the adjacent clamping frames. A limiting frame is connected to the left side of the third clamping frame from the left. Each expansion rod is engaged with the limiting frame. A drive assembly capable of unwinding and rewinding is provided on the upper side of the tube expander.

[0007] Furthermore, each of the sliding sleeves has a locking groove in the middle.

[0008] Furthermore, the parts of the clamping frames that are close to each other are all arc-shaped structures.

[0009] Furthermore, the drive assembly includes a motor, bevel gears, winding drums, pull ropes, and pulleys. The motor is connected to the upper side of the tube expander, and the motor and processor are electrically connected through a control module. A bevel gear is connected to the output shaft of the motor. When the upper part of the tube expander rotates, it is connected to two winding drums, one in front and one in back. Bevel gears are also connected to the sides of the winding drums that are close to each other. The two adjacent bevel gears are meshed with each other. Pull ropes are wound on the winding drums. The pull rope at the front is connected to the sliding frame on the right, and the pull rope at the rear is connected to the sliding frame on the left. The upper part of the tube expander is rotatably connected to two pulleys, one on the left and one on the right. The pulleys are in contact with the adjacent pull ropes.

[0010] Furthermore, the sides of the clamps that are close to each other are provided with anti-slip texture.

[0011] Furthermore, the rope is a steel cable.

[0012] The present invention has the following advantages: 1. The present invention moves the sliding frame upward on the mounting frame by pulling the rope, and the second telescopic spring contracts, so that the clamping frame moves along the sliding frame and moves inward on the mounting frame, so that the clamping frame is tightly locked to the tube expander. At this time, the expansion rod no longer moves downward, thus achieving the effect of timely locking when the tube and the expansion rod are misaligned, preventing the expansion rod from colliding with the tube.

[0013] 2. When the clamping frame moves inward to lock, it will drive the limiting frame to move and retract from the sliding sleeve. At this time, when the expansion rod comes into contact with the pipe and is squeezed, it will drive the expansion rod to move upward. The first telescopic spring will contract and buffer under the action of the first telescopic spring, thus achieving the effect of buffering when the pipe and the expansion rod are misaligned and preventing damage to the expansion rod. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the tube expander and expansion rod components of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the sliding sleeve and the first telescopic spring of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the motor and pull rope components of this utility model.

[0018] Figure 5 This is a three-dimensional structural diagram of the mounting bracket and sliding bracket components of this utility model.

[0019] Figure 6 This is a three-dimensional structural diagram of the clamping frame and limiting frame components of this utility model.

[0020] In the above attached diagram: 1: tube expander, 2: sliding sleeve, 3: expansion rod, 4: first telescopic spring, 5: motor, 6: bevel gear, 7: winding drum, 8: pull rope, 9: pulley, 10: mounting bracket, 11: roller, 12: sliding frame, 13: second telescopic spring, 14: clamping frame, 15: limiting frame. Detailed Implementation

[0021] References to embodiments herein mean that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0022] A vertical tube expander anti-collision protection device, such as Figures 1-6 As shown, the assembly includes a tube expander 1, a sliding sleeve 2, expansion rods 3, a first telescopic spring 4, a mounting bracket 10, rollers 11, a sliding frame 12, a second telescopic spring 13, a clamping frame 14, a limiting frame 15, and a drive assembly. The upper part of the tube expander 1 is slidably connected to the sliding sleeve 2, each with a locking groove in the middle. Three expansion rods 3 are slidably connected to the sliding sleeve 2, each connected to the sliding sleeve 2 by a first telescopic spring 4. Mounting brackets 10 are connected to both the left and right sides of the sliding sleeve 2. Each mounting bracket 10 has two rotatably connected left and right rollers 11 at its upper and lower parts, both of which are in contact with the tube expander 1. The left and right sides of the mounting bracket 10... Both right sides are slidably connected to sliding frames 12. The front and rear parts of the sliding frames 12 are connected to the adjacent mounting frames 10 by second telescopic springs 13. The mounting frames 10 are slidably connected to two left and right clamping frames 14. The clamping frames 14 are arc-shaped on the side closest to each other for easy clamping. The side of the clamping frames 14 that is close to each other is provided with anti-slip texture. The sliding frames 12 are slidably engaged with the adjacent clamping frames 14. The left side of the third clamping frame 14 from the left is connected to a limiting frame 15. The expansion rods 3 are engaged with the limiting frame 15. The upper side of the tube expander 1 is provided with a drive assembly that can perform unwinding and rewinding.

[0023] like Figure 1 and Figure 4As shown, the drive assembly includes a motor 5, a bevel gear 6, a winding drum 7, a pull rope 8, and a pulley 9. The upper side of the tube expander 1 is connected to the motor 5. The motor 5 and the processor are electrically connected through a control module. The output shaft of the motor 5 is connected to the bevel gear 6. When the upper part of the tube expander 1 rotates, it is connected to two winding drums 7, one in front and one in back. The sides of the winding drums 7 that are close to each other are also connected to bevel gears 6. The two adjacent bevel gears 6 are meshed with each other. Pull ropes 8 are wound on the winding drums 7. The pull ropes 8 are steel cables. The front pull rope 8 is connected to the right sliding frame 12, and the rear pull rope 8 is connected to the left sliding frame 12. The upper part of the tube expander 1 is rotatably connected to two pulleys 9, one on the left and one on the right. The pulleys 9 are in contact with the adjacent pull ropes 8.

[0024] When using this device, the pipe to be processed is first placed on the tube expander 1. Then, the sliding sleeve 2 is moved downward by the telescopic cylinder on the tube expander 1. At the same time, the processor starts the motor 5 through the control module. The output shaft of the motor 5 drives the bevel gear 6 connected to it to rotate. The bevel gears 6 mesh with each other, driving the winding drum 7 to rotate synchronously, so that the winding drum 7 unwinds the pull rope 8 synchronously. When the sliding sleeve 2 moves downward, it will drive the mounting bracket 10 to move downward, causing the roller 11 to rotate, so that the expansion rod 3 is inserted into the pipe for tube expansion processing. When the expansion rod 3 is not aligned with the pipe, misalignment occurs. When in position, the reverse start motor 5 and the bevel gear 6 mesh with each other, driving the winding drum 7 to rotate synchronously in the opposite direction, so that the pull rope 8 is wound onto the winding drum 7. The pull rope 8 pulls the sliding frame 12 to move upward on the mounting frame 10, and the second telescopic spring 13 contracts, causing the clamping frame 14 to move along the sliding frame 12, driving the clamping frame 14 to move inward on the mounting frame 10, so that the clamping frame 14 is pressed against the tube expander 1 for locking. At this time, the expansion rod 3 no longer moves downward, so that it can be locked in time when the tube and the expansion rod 3 are misaligned, preventing the expansion rod 3 from colliding with the tube. When the clamping frame 14 moves inward and locks, it will drive the limiting frame 15 to move and withdraw from the sliding sleeve 2. At this time, when the expansion rod 3 comes into contact with the pipe and is squeezed, it will drive the expansion rod 3 to move upward. The first telescopic spring 4 will contract and buffer under the action of the first telescopic spring 4, so as to buffer when the pipe and the expansion rod 3 are misaligned and prevent the expansion rod 3 from being damaged.

[0025] The above embodiments are provided for those skilled in the art to implement or use the present invention. Those skilled in the art can make various modifications or changes to the above embodiments without departing from the inventive concept of the present invention. Therefore, the protection scope of the present invention is not limited to the above embodiments, but should be the maximum scope that conforms to the innovative features mentioned in the claims.

Claims

1. A collision protection device for a vertical tube expander, characterized in that: it includes... The device includes a tube expander (1), a sliding sleeve (2), expansion rods (3), a first telescopic spring (4), a mounting frame (10), rollers (11), a sliding frame (12), a second telescopic spring (13), a clamping frame (14), a limiting frame (15), and a drive assembly. The tube expander (1) is slidably connected to the upper part of the sliding sleeve (2), and multiple expansion rods (3) are slidably connected to the sliding sleeve (2). Each expansion rod (3) is connected to the sliding sleeve (2) by a first telescopic spring (4). Mounting frames (10) are connected to both the left and right sides of the sliding sleeve (2). Each mounting frame (10) has two rotatably connected rollers (11) on its upper and lower parts. All wheels (11) are in contact with the tube expander (1). The left and right sides of the mounting frame (10) are slidably connected to sliding frames (12). The front and rear sides of the sliding frames (12) are connected to the adjacent mounting frames (10) by a second telescopic spring (13). The mounting frame (10) is slidably connected to two left and right clamping frames (14). The sliding frames (12) are slidably engaged with the adjacent clamping frames (14). The left side of the third clamping frame (14) from the left is connected to a limiting frame (15). The expansion rods (3) are engaged with the limiting frame (15). The tube expander (1) is equipped with a drive assembly on the upper side that can perform unwinding and rewinding.

2. The anti-collision protection device for a vertical tube expander according to claim 1, characterized in that: The middle part of the sliding sleeve (2) has a locking groove.

3. The anti-collision protection device for a vertical tube expander according to claim 1, characterized in that: The parts of the clamps (14) that are close to each other are all arc-shaped structures.

4. The anti-collision protection device for a vertical tube expander according to claim 1, characterized in that: The drive assembly includes a motor (5), a bevel gear (6), a winding drum (7), a pull rope (8), and a pulley (9). The upper side of the tube expander (1) is connected to the motor (5). The motor (5) and the processor are electrically connected through the control module. The output shaft of the motor (5) is connected to the bevel gear (6). When the upper part of the tube expander (1) rotates, it is connected to two winding drums (7) in the front and rear. The sides of the winding drums (7) that are close to each other are also connected to bevel gears (6). The two adjacent bevel gears (6) mesh with each other. Pull ropes (8) are wound on the winding drums (7). The pull rope (8) in the front is connected to the sliding frame (12) in the right and the pull rope (8) in the rear is connected to the sliding frame (12) in the left. The upper part of the tube expander (1) is rotatably connected to two pulleys (9) in the left and right. The pulleys (9) are in contact with the adjacent pull ropes (8).

5. A vertical tube expander anti-collision protection device according to claim 1, characterized in that: The clamps (14) are provided with anti-slip texture on the sides that are close to each other.

6. A vertical tube expander anti-collision protection device according to claim 4, characterized in that: The pull rope (8) is a steel cable.

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