A 3pe anticorrosive steel pipe outer anticorrosive layer peeling strength detection machine

Abstract

This utility model belongs to the technical field of peel strength testing for the external anti-corrosion coating of steel pipes, specifically relating to a peel strength testing machine for the external anti-corrosion coating of 3PE anti-corrosion steel pipes. It includes a base frame, with a fixed frame fixedly connected to the inner wall of the base frame. A positive and negative threaded screw is installed inside the fixed frame via bearings, and the positive and negative threaded screw is rotatably connected to the base frame. This utility model, through the arrangement of a second motor and the positive and negative threaded screws, can drive two moving frames to move in opposite directions, causing the pointed cone to automatically press and fix the steel pipe body. Through the function of positioning holes and positioning blocks, the position of the pointed cone can be precisely positioned to avoid excessive compression. Driven by the first motor, the steel pipe body can rotate, and in conjunction with the strength detector, the peel strength of the 3PE anti-corrosion coating on the steel pipe body can be tested.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe external anti-corrosion layer peel strength testing technology, specifically a 3PE anti-corrosion steel pipe external anti-corrosion layer peel strength testing machine. Background Technology

[0002] The 3PE anti-corrosion steel pipe external anti-corrosion coating peel strength tester is a device used to test the peel strength of the external anti-corrosion coating of 3PE anti-corrosion steel pipes. This machine typically includes a clamp or clamping system to hold the test sample in place to ensure the accuracy of the test. The testing process usually involves applying a certain force or strain to the external anti-corrosion coating to perform a peel test, and recording the peel force or strain value to evaluate the adhesion and durability of the external anti-corrosion coating.

[0003] A peeling tensile tester for testing the peel strength of the outer anti-corrosion layer of steel pipe is disclosed in the utility model patent with patent authorization announcement number CN209231186U. The tester includes a support slide rail and a clamping plate. The inner side of the support slide rail is provided with a mounting hole, and a scraper is installed inside the mounting hole. The upper end of the clamping jaw is connected to a pull rod, and the outer side of the pull rod is connected to a rigid spring. The clamping plate is located at the lower end of the clamping jaw, and the outer side of the clamping plate is provided with a gap.

[0004] However, the existing 3PE anti-corrosion steel pipe external anti-corrosion layer peel strength testing machine also has certain shortcomings. Although the existing 3PE anti-corrosion steel pipe external anti-corrosion layer peel strength testing machine adopts the structure of positive and negative threaded screws, drive motors and other structures to drive two pointed cones to move and clamp and fix the steel pipe body, due to the influence of rotational inertia and other factors, it is easy to cause excessive movement and squeezing of the pointed cones. Utility Model Content

[0005] The purpose of this utility model is to provide a 3PE anti-corrosion steel pipe external anti-corrosion layer peel strength testing machine, which solves the problem that the existing 3PE anti-corrosion steel pipe external anti-corrosion layer peel strength testing machine, although it adopts the structure of positive and negative thread screws, drive motors and other structures to drive two pointed cones to move and clamp and fix the steel pipe body, is prone to excessive movement and squeezing of the pointed cones due to the influence of rotational inertia and other factors.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a peel strength testing machine for the outer anti-corrosion layer of PE anti-corrosion steel pipe, comprising a base frame, a fixed frame fixedly connected to the inner side wall of the base frame, a positive and negative threaded screw installed inside the fixed frame via bearings, the positive and negative threaded screw being rotatably connected to the base frame, two symmetrically distributed movable frames connected to the outer side of the positive and negative threaded screw via threads, each movable frame being slidably connected to the fixed frame, a support shaft installed on the vertical part of each movable frame via bearings, a pointed cone fixedly connected to the end face of the support shaft, the pointed cone being rotatably connected to the movable frame, and a steel pipe body contacting the two pointed cones;

[0007] The vertical part of the movable frame on the left is equipped with a motor 1 via a connector. The output shaft of the motor 1 is fixedly connected to the left support shaft. A support frame is fixedly connected to the upper rear side of the base frame. A strength detector is installed on the horizontal part of the support frame. The peeling blade of the strength detector contacts the PE anti-corrosion layer of the steel pipe body. A gear 1 is fixedly sleeved on the outer side of the positive and negative threaded screw. A motor 2 is fixedly installed on the left end of the base frame. A gear 2 is fixedly sleeved on the outer side of the output end of the motor 2. The gear 2 meshes with the gear 1. A positioning mechanism is provided on both the movable frame and the fixed frame. An oil injection mechanism is provided on the base frame.

[0008] Preferably, the positioning mechanism includes a positioning hole. The lower end of the fixed frame has a positioning hole. A telescopic plate is slidably connected to the horizontal part of the movable frame. A positioning block is fixedly connected to the upper end of the telescopic plate. The positioning block is slidably connected to the positioning hole. A spring is provided on the outer side of the vertical part of the telescopic plate. One end of the spring is welded to the end plate of the telescopic plate, and the other end of the spring is welded to the horizontal part of the movable frame. Through the setting of the positioning hole, positioning block, and other structures, the movable frame can be moved and positioned, thereby accurately positioning the position of the cone for use.

[0009] Preferably, multiple positioning holes are provided, and the multiple positioning holes are evenly distributed on the fixing frame. The positioning holes facilitate the use of the positioning block for snap-fitting.

[0010] Preferably, the oil injection mechanism includes a mounting frame. The mounting frame is fixedly connected to the upper left side of the base frame. A mounting box is fixedly connected to the horizontal part of the mounting frame. A guide rod is fixedly connected to the horizontal part of the mounting frame. A guide block is slidably sleeved on the outer side of the guide rod. The guide block is slidably connected to the horizontal part of the mounting frame. A second spring is provided on the outer side of the guide rod. A partition is fixedly connected to the lower end of the guide block. By pulling the partition to the left, the second spring deforms, so that the guide hole of the horizontal part of the mounting frame is in a flow state, guiding the lubricating oil to lubricate gear two and gear one.

[0011] Preferably, one end of the second spring is welded to the guide block, and the other end of the second spring is welded to the mounting bracket. The guide block can be connected and used through the setting of the second spring.

[0012] Preferably, a buckle is fixedly connected to the left end of the partition. The buckle is made of rubber, which facilitates the movement of the partition by pulling it, and the rubber material has good skin-friendliness.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model, through the setting of motor two, positive and negative threaded screws and other structures, can drive two moving frames to move towards each other, so that the pointed cone can automatically press and fix the steel pipe body. Through the function of positioning holes, positioning blocks and other structures, the position of the pointed cone can be precisely positioned to avoid the problem of excessive compression. Under the drive of motor one, the steel pipe body can be rotated. With the setting of strength detector, the peel strength of the 3PE anti-corrosion layer of the steel pipe body can be tested.

[0015] 2. This utility model allows the partition to move by pulling the buckle, so that the flow hole in the horizontal part of the mounting bracket is in a flow state, thereby guiding the lubricating oil and making the lubricating oil contact with gear two and gear one, so as to reduce the hard wear between gear two and gear one and improve the transmission effect between gear two and gear one. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 For the present utility model Figure 1 A bottom view;

[0018] Figure 3 For the present utility model Figure 1 A front sectional view;

[0019] Figure 4 For the present utility model Figure 2 Enlarged view of point A;

[0020] Figure 5 For the present utility model Figure 3 Enlarged view of the oil injection mechanism.

[0021] In the diagram: 1. Base frame; 2. Fixed frame; 3. Positive and negative threaded screw; 4. Moving frame; 5. Support shaft; 6. Cone; 7. Steel pipe body; 8. Motor 1; 9. Support frame; 10. Strength detector; 11. Gear 1; 12. Motor 2; 13. Gear 2; 14. Positioning mechanism; 15. Oil injection mechanism; 141. Positioning hole; 142. Telescopic plate; 143. Positioning block; 144. Spring 1; 151. Mounting frame; 152. Placement box; 153. Guide rod; 154. Guide block; 155. Spring 2; 156. Partition plate; 157. Buckle. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 A 3PE anti-corrosion steel pipe external anti-corrosion layer peel strength testing machine includes a base frame 1, a fixed frame 2 fixedly connected to the inner side wall of the base frame 1, a positive and negative threaded screw 3 installed inside the fixed frame 2 through bearings, the positive and negative threaded screw 3 being rotatably connected to the base frame 1, two symmetrically distributed movable frames 4 being threadedly connected to the outer side of the positive and negative threaded screw 3, each movable frame 4 being slidably connected to the fixed frame 2, a support shaft 5 being installed on the vertical part of each movable frame 4 through bearings, a pointed cone 6 being fixedly connected to the end face of the support shaft 5, the pointed cone 6 being rotatably connected to the movable frame 4, and a steel pipe body 7 contacting the two pointed cones 6;

[0024] The vertical part of the left movable frame 4 is equipped with a motor 8 via a connector. The output shaft of the motor 8 is fixedly connected to the left support shaft 5. The upper rear side of the base frame 1 is fixedly connected to a support frame 9. The horizontal part of the support frame 9 is equipped with a strength detector 10. The peeling blade of the strength detector 10 contacts the 3PE anti-corrosion layer of the steel pipe body 7. The outer side of the positive and negative threaded screw 3 is fixedly sleeved with a gear 11. The left end of the base frame 1 is fixedly installed with a motor 12. The outer side of the output end of the motor 12 is fixedly sleeved with a gear 13. The gear 13 meshes with the gear 11.

[0025] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4The movable frame 4 and the fixed frame 2 are both equipped with a positioning mechanism 14. The positioning mechanism 14 includes positioning holes 141. The lower end of the fixed frame 2 is provided with positioning holes 141. Multiple positioning holes 141 are provided and are evenly distributed on the fixed frame 2. The positioning holes 141 facilitate the use of positioning blocks 143 for locking. The horizontal part of the movable frame 4 is slidably connected to a telescopic plate 142. The upper end of the telescopic plate 142 is fixedly connected to a positioning block 143. The positioning block 143 is slidably connected to the positioning holes 141. A spring 144 is provided on the outer side of the vertical part of the telescopic plate 142. One end of the spring 144 is welded to the end plate of the telescopic plate 142, and the other end of the spring 144 is welded to the horizontal part of the movable frame 4. Through the setting of the positioning holes 141, positioning blocks 143 and other structures, the movable frame 4 can be moved and positioned, thereby accurately positioning the position of the pointed cone 6.

[0026] Please see Figure 1 , Figure 2 , Figure 3 , Figure 5 The base frame 1 is equipped with an oil injection mechanism 15, which includes a mounting frame 151. The mounting frame 151 is fixedly connected to the upper left side of the base frame 1. The mounting frame 151 is fixedly connected to a mounting box 152 at its horizontal part. The mounting frame 151 is fixedly connected to a guide rod 153 at its horizontal part. A guide block 154 is slidably sleeved on the outer side of the guide rod 153. The guide block 154 is slidably connected to the horizontal part of the mounting frame 151. A second spring 155 is provided on the outer side of the guide rod 153. A partition 156 is fixedly connected to the lower end of the guide block 154. By pulling the partition 156 to the left, the second spring 155 deforms, so that the guide hole at the horizontal part of the mounting frame 151 is in a flow state, guiding the lubricating oil to lubricate the gear 2 13 and gear 11.

[0027] Please see Figure 1 , Figure 2 , Figure 3 , Figure 5 One end of the second spring 155 is welded to the guide block 154, and the other end of the second spring 155 is welded to the mounting bracket 151. The guide block 154 can be connected and used through the setting of the second spring 155. A buckle 157 is fixedly connected to the left end of the partition 156. The buckle 157 is made of rubber. The buckle 157 makes it easy to pull the partition 156 to move, and the rubber material has good skin-friendliness.

[0028] The specific implementation process of this utility model is as follows: In use, the output end of the motor 12 is driven to rotate, which drives the gear 13 to rotate. Under the meshing relationship, the gear 13 drives the gear 11 to rotate, which drives the positive and negative threaded screw 3 to rotate. Under the threaded connection relationship, the two moving frames 4 can be driven to move towards each other, which drives the cone 6 to move and press and fix the steel pipe body 7. The motor 8 is started to drive the output shaft to rotate, which drives the left support shaft 5 to rotate, which in turn drives the left cone 6 to rotate, and finally drives the steel pipe body 7 to rotate. Through the setting of the strength detector 10, the peeling tool can be made to contact the steel pipe body 7, and the peeling strength of the peeling tool can be adjusted to test the peeling strength of the 3PE anti-corrosion layer on the surface of the steel pipe body 7.

[0029] When the movable frame 4 moves, it can drive the telescopic plate 142 to move, thereby driving the positioning block 143 to move. Under the pressure of the inner wall of the positioning hole 141, the positioning block 143 can be pushed to move, thereby pushing the telescopic plate 142 to slide along the horizontal part of the movable frame 4. The spring 144 deforms, eventually causing the positioning block 143 to disengage from the positioning hole 141. Under the action of force, the positioning block 143 moves along the lower end face of the fixed frame 2. When the positioning block 143 slides into the next positioning hole 141, the spring 144 returns to its original deformation, thereby pulling the positioning block 143 to insert into the positioning hole 141, moving and positioning the movable frame 4, and thus precisely controlling the movement position of the cone 6.

[0030] By pulling the buckle 157 to the left, the partition 156 is moved, and the guide block 154 moves along the surface of the guide rod 153. The second spring 155 deforms, so that the partition 156 is in a stable moving state. Then, the partition 156 is disengaged from the flow hole of the mounting bracket 151, and the lubricating oil is guided for use. Finally, the lubricating oil comes into contact with the second gear 13 and the first gear 11, and lubricates the gears to reduce the hard wear between the gears.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A 3PE anticorrosive steel pipe outer anticorrosive layer peeling strength detection machine, comprising a chassis (1), characterized in that: A fixed frame (2) is fixedly connected to the inner wall of the base frame (1). A screw rod (3) with positive and negative threads is installed inside the fixed frame (2) through a bearing. The screw rod (3) with positive and negative threads is rotatably connected to the base frame (1). Two symmetrically distributed movable frames (4) are connected to the outer side of the screw rod (3) through a thread. Each movable frame (4) is slidably connected to the fixed frame (2). A support shaft (5) is installed on the vertical part of each movable frame (4) through a bearing. A pointed cone (6) is fixedly connected to the end face of the support shaft (5). The pointed cone (6) is rotatably connected to the movable frame (4). A steel pipe body (7) contacts the two pointed cones (6). The vertical part of the left-side movable frame (4) is equipped with a motor (8) via a connector. The output shaft of the motor (8) is fixedly connected to the left-side support shaft (5). The upper rear side of the base frame (1) is fixedly connected to a support frame (9). The horizontal part of the support frame (9) is equipped with a strength detector (10). The peeling blade of the strength detector (10) contacts the 3PE anti-corrosion layer of the steel pipe body (7). The outer side of the positive and negative threaded screw (3) is fixedly sleeved with a gear (11). The left end of the base frame (1) is fixedly installed with a motor (12). The outer side of the output end of the motor (12) is fixedly sleeved with a gear (13). The gear (13) meshes with the gear (11). The movable frame (4) and the fixed frame (2) are jointly equipped with a positioning mechanism (14). The base frame (1) is equipped with an oil injection mechanism (15).

2. The 3PE anti-corrosion steel pipe outer anti-corrosion layer peeling strength detection machine according to claim 1, characterized in that: The positioning mechanism (14) includes a positioning hole (141). The lower end of the fixed frame (2) is provided with a positioning hole (141). The horizontal part of the movable frame (4) is slidably connected to a telescopic plate (142). The upper end of the telescopic plate (142) is fixedly connected to a positioning block (143). The positioning block (143) is slidably connected to the positioning hole (141). A spring (144) is provided on the outer side of the vertical part of the telescopic plate (142). One end of the spring (144) is welded to the end plate of the telescopic plate (142), and the other end of the spring (144) is welded to the horizontal part of the movable frame (4).

3. The 3PE anti-corrosion steel pipe outer anti-corrosion layer peeling strength detection machine according to claim 2, characterized in that: The positioning holes (141) are provided in multiple ways, and the multiple positioning holes (141) are evenly distributed on the fixing frame (2).

4. The 3PE anti-corrosion steel pipe outer anti-corrosion layer peeling strength detection machine according to claim 1, characterized in that: The oil injection mechanism (15) includes a mounting frame (151). The mounting frame (151) is fixedly connected to the upper left side of the base frame (1). The mounting frame (152) is fixedly connected to the horizontal part of the mounting frame (151). The mounting frame (153) is fixedly connected to the horizontal part of the mounting frame (151). The guide block (154) is slidably sleeved on the outer side of the guide rod (153). The guide block (154) is slidably connected to the horizontal part of the mounting frame (151). A second spring (155) is provided on the outer side of the guide rod (153). A partition plate (156) is fixedly connected to the lower end of the guide block (154).

5. The peel strength testing machine for the external anti-corrosion layer of 3PE anti-corrosion steel pipe according to claim 4, characterized in that: One end of the second spring (155) is welded to the guide block (154), and the other end of the second spring (155) is welded to the mounting bracket (151).

6. The peel strength testing machine for the external anti-corrosion layer of 3PE anti-corrosion steel pipe according to claim 4, characterized in that: A buckle (157) is fixedly connected to the left end of the partition (156), and the buckle (157) is made of rubber.

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