Wear resistance testing equipment for polyethylene fiber fishing line

Abstract

The invention relates to the technical field of polyethylene wire detection, in particular to polyethylene fiber fishing line wear resistance testing equipment which comprises a base, a supporting frame is fixedly connected to the top of the base, a supporting sliding rail is fixedly connected to the middle end of the supporting frame, and a second electric sliding rail is fixedly connected to the upper end of the supporting frame; a conveying assembly used for conveying a fishing line is arranged on one side of the second electric sliding rail, and a winding assembly used for detecting the abrasion resistance degree of the fishing line is arranged on one side of the supporting sliding rail. A fishing line is automatically wound in a first rotating wheel and a second rotating wheel in the winding assembly through the conveying assembly, so that stretching and fixing of the fishing line in the detection process can be effectively guaranteed, and meanwhile the first rotating wheel and the second rotating wheel are driven by a disc type motor to rotate together to achieve friction of a line segment wound on the second rotating wheel; therefore, the wear resistance of multiple sections on the same fishing line can be detected.

Description

Technical Field

[0001] The invention relates to the technical field of polyethylene wire material detection, in particular to a polyethylene fiber fishing line wear resistance testing device. Background Art

[0002] Polyethylene fiber, also known as vinyl, refers to the fiber material obtained by spinning polyethylene by melt spinning, including short fibers and filaments. The mechanical strength of this fiber can be adjusted by spinning process parameters, and the wet strength and elongation are the same as those in the dry state. Polyethylene fiber has the advantages of high strength, low density, and good insulation. Among them, the tensile strength of polyethylene fiber is unmatched by any material, and it is also widely used in wires, such as fishing lines;

[0003] The Chinese announcement number is: CN119198335A, which discloses a wear-resistant testing device and implementation method for polyethylene monofilament fishing line, including that when the strength test of the current fishing line is carried out, because the overall length of the fishing line is long, only one section can be taken for testing during the test, and such a testing method cannot well reflect the overall strength of the fishing line. Secondly, such a test has a lot of deviations compared with the tension of the fishing line applied to the fishing link in reality. Cutting off a section for strength testing cannot well reflect the strength of the fishing line in the real state. The present invention can fold the polyethylene fishing line in half by providing an upper pulling rod and a first limiting wheel and a lower pulling rod and a second limiting wheel, and stretch it after being folded. The stretching force can cover the entire fishing line, and the space utilization is also smaller. Secondly, on the basis of combining such, the real environment is simulated, and a multi-directional test is carried out on it, and the test results are more accurate;

[0004] Although the above patent utilizes the upper pulling rod and the first limiting wheel as well as the lower pulling rod and the second limiting wheel to fold and stretch the polyethylene fishing line to ensure reasonable use of space, it is considered that during the use of the fishing line, it is not only pulled by humans or fish, but also during the pulling process, it is necessary to pay attention to the wear detection of the fishing line winding and releasing process in the fishing reel;

[0005] In view of this, we propose a polyethylene fiber fishing line wear resistance testing equipment. Summary of the invention

[0006] The object of the present invention is to provide a polyethylene fiber fishing line wear resistance testing device to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides a polyethylene fiber fishing line wear test device, comprising a base, a support frame is fixedly connected to the top of the base, a support slide is fixedly connected to the middle end of the support frame, a No. 2 electric slide is fixedly connected to the upper end of the support frame, a conveying assembly for conveying fishing line is arranged on one side of the No. 2 electric slide, and a winding assembly for detecting the wear resistance of fishing line is arranged on one side of the support slide;

[0008] The conveying assembly includes a No. 2 sliding column, the inner side of which is rotatably connected to a reciprocating screw rod, and the outer wall of which is threadedly connected to a sliding block;

[0009] The winding assembly comprises a No. 3 sliding column, and the No. 3 sliding column is rotatably connected to a No. 1 rotating wheel and a No. 2 rotating wheel at a side away from the supporting slide rail.

[0010] As a preferred embodiment of the present invention, the top of the base is fixedly connected to an electric slide rail No. 1, the top of the electric slide rail No. 1 is slidably connected to a sliding column No. 1, the tops of both sides of the base are fixedly connected to fixed columns, the inner side of the upper end of the fixed column on one side is slidably connected to a conveying column No. 1, and the top of the fixed column on the other side is fixedly connected to a wire bundle roller No. 1.

[0011] As a preferred embodiment of the present invention, the fixed column, the No. 1 sliding column and the No. 1 conveying column on both sides are all located on the same vertical plane, and the three are located on the same central axis.

[0012] As a preferred embodiment of the present invention, an extension plate is fixedly connected to one side of the base, a plurality of touch sensors are fixedly connected to the top of the extension plate, and the touch sensors are on the same horizontal plane as the lower end of the first sliding column.

[0013] As a preferred embodiment of the present invention, the No. 2 sliding column is slidably connected to one side of the No. 2 electric slide rail, a plurality of solenoid valves are fixedly connected to the inner wall of the No. 2 sliding column, the No. 2 sliding column is hollowed out internally, a servo motor is fixedly connected to one side of the No. 2 sliding column, the reciprocating screw is fixedly connected to the output end of the servo motor, and the slider is slidably connected to the inner side of the No. 2 sliding column.

[0014] As a preferred embodiment of the present invention, the No. 2 sliding column is provided with a circular hole at the bottom of one end close to the servo motor, a fixing ring is rotatably connected in the circular hole, a raised ring for limiting the sliding of the fixing ring is fixedly connected to the outer wall of the fixing ring, and a No. 1 gear is fixedly connected to the outer wall of one end of the fixing ring.

[0015] As a preferred embodiment of the present invention, the reciprocating screw is fixedly connected to a twill protrusion on the outer wall on the side close to the servo motor, the twill protrusion is meshingly connected to the No. 1 gear, and the No. 2 sliding column is rotatably connected to the No. 2 wiring roller at the bottom of the end away from the servo motor.

[0016] Preferably in the present invention, a vertical plate is fixedly connected to the bottom of the slider. The vertical plate is electromagnetically connected through a second conveying column. Thread grooves are formed on the outer wall of the second conveying column, and the thread grooves are fitted with the inner wall of the fixed ring, where:

[0017] The second wire bundling roller, the second conveying column and the fixed ring are on the same horizontal plane, and the second conveying column and the fixed ring are on the same central axis.

[0018] Preferably in the present invention, the third sliding column is slidably connected to one side of the support slide rail. A disc motor is fixedly connected to the inside of the third sliding column. An output end of the disc motor is fixedly connected to a third gear. One side of the third gear is meshed with a second gear, and the second gear is fixedly connected between the third sliding column and the first runner through a cross column.

[0019] Preferably in the present invention, a first annular groove is formed on the outer wall of the first runner. An extension column is fixedly connected to the peripheral position of the first runner on the side away from the second gear. A semi-electromagnetic ring is fixedly connected to the top of the extension column at the end away from the first runner. A second runner is fixedly connected to the first runner on the side away from the second gear. A second annular groove is formed on the outer wall of the second runner. An extension column and a semi-electromagnetic ring are also fixedly connected to the second runner on the side away from the first runner, where:

[0020] The extension columns on the first runner and the second runner are distributed in two opposite directions.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. In this polyethylene fiber fishing line wear resistance testing device, the fishing line is automatically wound around the first runner and the second runner in the winding component by the conveying component, which provides convenience for subsequent automatic detection and can effectively ensure the stretching and fixing of the fishing line during the detection process.

[0023] 2. In this polyethylene fiber fishing line wear resistance testing device, the second electric slide rail drives the second sliding column to slide left and right reciprocally to realize the reciprocating friction of the fishing line on the inner wall of the first annular groove, and the reciprocating operation is carried out in the same section of the line, which can ensure the detection of the same section in the same line.

[0024] 3. In this polyethylene fiber fishing line wear resistance testing device, the disc motor drives the first runner and the second runner to rotate together to achieve the friction of the line wound on the second runner, so as to achieve the detection of the wear resistance of multiple sections on the same fishing line. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1It is an overall three-dimensional schematic diagram of the wear-resistant test equipment for polyethylene fiber fishing lines of the present invention;

[0026] Figure 2 It is an overall sectional schematic diagram of the wear-resistant test equipment for polyethylene fiber fishing lines of the present invention;

[0027] Figure 3 It is a three-dimensional schematic diagram of the conveying component and the wire winding component of the wear-resistant test equipment for polyethylene fiber fishing lines of the present invention;

[0028] Figure 4 It is a three-dimensional unfolded schematic diagram of the support frame of the wear-resistant test equipment for polyethylene fiber fishing lines of the present invention;

[0029] Figure 5 It is an internal three-dimensional sectional schematic diagram of the first sliding column of the wear-resistant test equipment for polyethylene fiber fishing lines of the present invention;

[0030] Figure 6 It is an internal detailed three-dimensional schematic diagram of the first sliding column of the wear-resistant test equipment for polyethylene fiber fishing lines of the present invention;

[0031] Figure 7 It is a detailed three-dimensional unfolded schematic diagram of the wire winding component of the wear-resistant test equipment for polyethylene fiber fishing lines of the present invention;

[0032] The meanings of each label in the figure are as follows:

[0033] 1. Base; 11. First electric slide rail; 111. First sliding column; 112. Fixed column; 1121. First conveying column; 1122. First wire bundling roller; 113. Extension plate; 1131. Touch sensor; 12. Support frame; 121. Support slide rail; 122. Second electric slide rail;

[0034] 2. Conveying component; 21. Second sliding column; 211. Servo motor; 212. Circular hole; 213. Second wire bundling roller; 214. Solenoid valve; 22. Reciprocating lead screw; 221. Twill raised part; 23. Slide block; 231. Vertical plate; 24. Second conveying column; 241. Thread groove; 25. Fixed ring; 251. Raised ring; 252. First gear;

[0035] 3. Wire winding component; 31. Third sliding column; 32. First runner; 321. First annular groove; 322. Extension column; 3221. Semi-electromagnetic ring; 33. Second runner; 331. Second annular groove; 34. Second gear; 35. Third gear. Specific embodiments

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention.

[0038] Embodiment 1

[0039] Please refer to Figure 1 - As shown in Fig. 7, this embodiment provides a wear-resistant test device for polyethylene fiber fishing lines, including a base 1. A support frame 12 is fixedly connected to the top of the base 1. A support slide rail 121 is fixedly connected to the middle end of the support frame 12. A second electric slide rail 122 is fixedly connected to the upper end of the support frame 12. A conveying assembly 2 for conveying fishing lines is arranged on one side of the second electric slide rail 122. A winding assembly 3 for detecting the wear resistance of fishing lines is arranged on one side of the support slide rail 121. The conveying assembly 2 includes a second sliding column 21. A reciprocating lead screw 22 is rotatably connected to the inner side of the second sliding column 21. A slider 23 is threadedly connected to the outer wall of the reciprocating lead screw 22. The winding assembly 3 includes a third sliding column 31. A first runner 32 and a second runner 33 are rotatably connected to the third sliding column 31 on the side far from the support slide rail 121.

[0040] As Figure 1 shown, a first electric slide rail 11 is fixedly connected to the top of the base 1. A first sliding column 111 is slidably connected to the top of the first electric slide rail 11. Fixed columns 112 are fixedly connected to the top of both sides of the base 1. A first conveying column 1121 is slidably connected to the inner side of the upper end of one fixed column 112. A first wire bundling roller 1122 is fixedly connected to the top of the other fixed column 112. The two fixed columns 112, the first sliding column 111 and the first conveying column 1121 are all in the same vertical plane and on the same central axis. An extension plate 113 is fixedly connected to one side of the base 1. A plurality of touch sensors 1131 are fixedly connected to the top of the extension plate 113. The touch sensors 1131 and the lower end of the first sliding column 111 are on the same horizontal plane.

[0041] As shown in Figures 2 - 5 Figure 2, the second sliding column 21 is slidably connected to one side of the second electric slide rail 122. A plurality of solenoid valves 214 are fixedly connected to the inner wall of the second sliding column 21. The second sliding column 21 is in a hollow state inside. A servo motor 211 is fixedly connected to one side of the second sliding column 21. The reciprocating lead screw 22 is fixedly connected to the output end of the servo motor 211. The slider 23 is slidably connected to the inside of the second sliding column 21. A circular hole 212 is opened at the bottom of one end of the second sliding column 21 close to the servo motor 211. A fixed ring 25 is rotatably connected inside the circular hole 212. A protruding ring 251 for restricting the sliding of the fixed ring 25 is fixedly connected to the outer wall of the fixed ring 25. A first gear 252 is fixedly connected to the outer wall of one end of the fixed ring 25. A helical protrusion 221 is fixedly connected to the outer wall of the reciprocating lead screw 22 on the side close to the servo motor 211. The helical protrusion 221 is meshed with the first gear 252. A second wire bundling roller 213 is rotatably connected to the bottom of the other end of the second sliding column 21 away from the servo motor 211. A vertical plate 231 is fixedly connected to the bottom of the slider 23. The vertical plate 231 is electromagnetically connected to the second conveying column 24. Thread grooves 241 are opened on the outer wall of the second conveying column 24. The thread grooves 241 are fitted with the inner wall of the fixed ring 25. Among them: the second wire bundling roller 213, the second conveying column 24 and the fixed ring 25 are on the same horizontal plane, and the second conveying column 24 and the fixed ring 25 are on the same central axis.

[0042] As shown in Figure 7 Figure 3, the third sliding column 31 is slidably connected to one side of the support slide rail 121. A disc motor is fixedly connected to the inside of the third sliding column 31. The output end of the disc motor is fixedly connected to a third gear 35. A second gear 34 is meshed with one side of the third gear 35. The second gear 34 is fixedly connected between the third sliding column 31 and the first runner 32 through a cross column. A first annular groove 321 is opened on the outer wall of the first runner 32. An extension column 322 is fixedly connected to the peripheral position of the first runner 32 on the side away from the second gear 34. A semi-electromagnetic ring 3221 is fixedly connected to the top of the end of the extension column 322 away from the first runner 32. A second runner 33 is fixedly connected to the first runner 32 on the side away from the second gear 34. A second annular groove 331 is opened on the outer wall of the second runner 33. An extension column 322 and a semi-electromagnetic ring 3221 are also fixedly connected to the second runner 33 on the side away from the first runner 32. Among them: the extension columns 322 on the first runner 32 and the extension columns 322 on the second runner 33 are distributed in two opposite directions.

[0043] It can be seen from this that when it is necessary to perform wear resistance detection on the fishing line made of polyethylene fiber, as shown in Figures 1 - 2As shown in the figure, the preparatory work in advance: The staff will lead out the fishing line head that has been wound on the second wire bundling roller 213, install the second wire bundling roller 213 at one end of the second sliding column 21, and then lead out the wire head through the inside of the second conveying column 24 and also expose the wire head and fix it inside the second conveying column 24. At this time, the servo motor 211 is started, and under the drive of the servo motor 211, the reciprocating screw rod 22 rotates. At this time, the reciprocating screw rod 22 will drive the slider 23 and the vertical plate 231 to slide to the left together, as Figure 2 shown in the figure. When the slider 231 slides to the position of the left solenoid valve 214 and contacts it, the vertical plate 231 will release the adsorption effect on the second conveying column 24, and at the same time make the semi-electromagnetic ring 3221 generate magnetism. At the same time, when the vertical plate 231 slides to the position of the left solenoid valve 214, it is exactly on the left side of the extension column 322 on the first runner 32. At this time, the vertical plate 231 will drive the second conveying column 24 to penetrate into the semi-electromagnetic ring 3221;

[0044] Subsequently, under the drive of the disc motor, the second gear 34 drives the third gear 35 to rotate, and at the same time drives the first runner 32 to rotate one circle and return to the upper position. At this time, the fishing line has wound around the first annular groove 321 once. And during this process, the slider 23 and the vertical plate 231 gradually slide to the position of the right solenoid valve 214. At this time, under the action of the right solenoid valve 214, the semi-electromagnetic ring 3221 loses magnetism, and the vertical plate 231 generates magnetism again. And when the semi-electromagnetic ring 3221 returns to the upper position, it will penetrate the second conveying column 24 into the inside of the vertical plate 231 again, and the vertical plate 231 will drive the second conveying column 24 to slide to the right again. When the second conveying column 24 is driven to slide to be about to reach the rightmost end position of the second sliding column 21, the second conveying column 24 will penetrate into the inside of the fixed ring 25, so that the thread groove 241 fits with the inner wall of the fixed ring 25. At this time, when the reciprocating screw rod 22 continues to drive the slider 23 to slide, it slides to the left, and under the rotation of the inclined thread projection 221, it will drive the first gear 252 and the fixed ring 25 to rotate together. At this time, the fixed ring 25 and the vertical plate 231 will drive the second conveying column 24 to slide to the right for a certain distance together, so that the fishing line head at the end of the second conveying column 24 leaks out and then stops. At this time, the staff pulls out the fishing line and, with the cooperation of the first runner 32, passes the fishing line head through the inside of the first conveying column 1121 and fixes it. At this time, the first sliding column 111 is located at the rightmost side of the first electric slide rail 11, and the first conveying column 1121 is fixed. Similarly to the above, the fishing line is wound around the second runner 33 once by using the extension column 322, and finally the staff fixes the end of the fishing line to the first wire bundling roller 1122. At this time, the fixation of the fishing line is completed;

[0045] As Figure 1As shown, when testing the abrasion resistance of the fishing line, driven by the second electric slide rail 122, the second sliding column 21 slides to the right. At this time, the first runner 32 is in a non-rotating state. At this time, the fishing line tightened on the first runner 32 slides to the right together. At this time, under the influence of the thrust, the fishing line tightened on the first runner 32 slides to the right together. At this time, the fishing line will slide on the first annular groove 321 and rub against the inner wall of the first annular groove 321. When the second electric slide rail 122 drives the second sliding column 21 to move left and right reciprocally, the fishing line will rub against the inner wall of the first annular groove 321 reciprocally and perform reciprocating operations in the same section of the line, which can ensure the detection of the same section in the same line;

[0046] In addition, if it is necessary to detect multiple segments in the same line, by the same token as above, the difference is that the disc motor is used to drive the first runner 32 and the second runner 33 to rotate together to achieve the friction of the segment wound around the second runner 33, so as to achieve the detection of the abrasion resistance of multiple segments on the same fishing line.

[0047] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A polyethylene fiber fishing line wear test device, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a support frame (12), the middle end of the support frame (12) is fixedly connected to a support slide rail (121), the upper end of the support frame (12) is fixedly connected to a second electric slide rail (122), one side of the second electric slide rail (122) is provided with a conveying assembly (2) for conveying a fishing line, and one side of the support slide rail (121) is provided with a winding assembly (3) for detecting the wear resistance of the fishing line; The conveying assembly (2) comprises a second sliding column (21), the inner side of the second sliding column (21) is rotatably connected to a reciprocating screw rod (22), and the outer wall of the reciprocating screw rod (22) is threadedly connected to a sliding block (23); The winding assembly (3) comprises a third sliding column (31), and the third sliding column (31) is rotatably connected to a first rotating wheel (32) and a second rotating wheel (33) on a side away from the supporting slide rail (121).

2. A polyethylene fiber fishing line wear test device according to claim 1, characterized in that: The top of the base (1) is fixedly connected to a No. 1 electric slide rail (11), the top of the No. 1 electric slide rail (11) is slidably connected to a No. 1 sliding column (111), the tops of both sides of the base (1) are fixedly connected to fixed columns (112), the inner side of the upper end of one side of the fixed column (112) is slidably connected to a No. 1 conveying column (1121), and the top of the other side of the fixed column (112) is fixedly connected to a No. 1 cable roller (1122).

3. A polyethylene fiber fishing line wear test device according to claim 2, characterized in that: The fixed column (112), the first sliding column (111) and the first conveying column (1121) on both sides are all located on the same vertical plane, and the three are located on the same central axis.

4. A polyethylene fiber fishing line wear test device according to claim 3, characterized in that: An extension plate (113) is fixedly connected to one side of the base (1), a plurality of touch sensors (1131) are fixedly connected to the top of the extension plate (113), and the touch sensors (1131) are located on the same horizontal plane as the lower end of the first sliding column (111).

5. A polyethylene fiber fishing line wear test device according to claim 4, characterized in that: The second sliding column (21) is slidably connected to one side of the second electric slide rail (122); a plurality of solenoid valves (214) are fixedly connected to the inner wall of the second sliding column (21); the second sliding column (21) is in an internal hollow state; a servo motor (211) is fixedly connected to one side of the second sliding column (21); the reciprocating screw rod (22) is fixedly connected to the output end of the servo motor (211); and the slider (23) is slidably connected to the inner side of the second sliding column (21).

6. A polyethylene fiber fishing line wear test device according to claim 5, characterized in that: The second sliding column (21) is provided with a circular hole (212) at the bottom of one end close to the servo motor (211), a fixing ring (25) is rotatably connected in the circular hole (212), a raised ring (251) for limiting the sliding of the fixing ring (25) is fixedly connected to the outer wall of the fixing ring (25), and a first gear (252) is fixedly connected to the outer wall of one end of the fixing ring (25).

7. A polyethylene fiber fishing line wear test device according to claim 6, characterized in that: The reciprocating screw rod (22) is fixedly connected with a diagonal protrusion (221) on the outer wall of one side close to the servo motor (211), and the diagonal protrusion (221) is meshingly connected with a No. 1 gear (252). The No. 2 sliding column (21) is rotatably connected with a No. 2 wire harness roller (213) at the bottom of the end away from the servo motor (211).

8. The wear-resistance testing device for polyethylene fiber fishing line according to claim 7, characterized in that: The bottom of the slider (23) is fixedly connected with a vertical plate (231), and the vertical plate (231) penetrates the electromagnetic connection with a second conveying column (24), and the outer wall of the second conveying column (24) is provided with a thread groove (241), and the thread groove (241) is matched with the inner wall of the fixing ring (25), wherein: The second wire-bearing roller (213), the second conveying column (24) and the fixing ring (25) are located on the same horizontal plane, and the second conveying column (24) and the fixing ring (25) are located on the same central axis.

9. The wear-resistance testing device for polyethylene fiber fishing line according to claim 8, characterized in that: The third sliding column (31) is slidably connected to one side of the supporting slide rail (121); a disc motor is fixedly connected inside the third sliding column (31); a third gear (35) is fixedly connected to the output end of the disc motor; a second gear (34) is meshedly connected to one side of the third gear (35); and the second gear (34) is fixedly connected between the third sliding column (31) and the first rotating wheel (32) through a transverse column.

10. The wear-resistance testing device for polyethylene fiber fishing line according to claim 9, characterized in that: The outer wall of the first rotating wheel (32) is provided with a first annular groove (321); the first rotating wheel (32) is fixedly connected to an extension column (322) at a peripheral position on a side away from the second gear (34); the extension column (322) is fixedly connected to a semi-electromagnetic ring (3221) at the top of an end away from the first rotating wheel (32); the first rotating wheel (32) is fixedly connected to a second rotating wheel (33) on a side away from the second gear (34); the outer wall of the second rotating wheel (33) is provided with a second annular groove (331); the second rotating wheel (33) is also fixedly connected to an extension column (322) and a semi-electromagnetic ring (3221) on a side away from the first rotating wheel (32); wherein: The extension column (322) on the first rotating wheel (32) and the extension column (322) on the second rotating wheel (33) are distributed in two opposite directions.

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