A kind of drag chain cable bending fatigue test equipment

Abstract

The utility model discloses a kind of drag chain cable bending fatigue test equipment, including installation driving mechanism, the two sides of installation driving mechanism are equipped with clamping unit, the inside of the middle part of installation driving mechanism is equipped with positioning sliding mechanism, the upper end of positioning sliding mechanism is equipped with bending push plate, positioning sliding mechanism includes two guide sliding plates, the upper end surface sliding connection of two the guide sliding plates has a connecting slide, the upper end of the connecting slide is equipped with two positioning toothed plate, two the positioning toothed plate both ends are equipped with second locking knob, the bending push plate is made of multiple arc head racks, multiple the arc head rack is linear arrangement;The installation driving mechanism includes installation box, the inside of one end angle of installation box is fixedly installed with transmission motor.The utility model is accurately controlled to the end curvature of bending push plate, and then it is convenient to satisfy the bending fatigue test of drag chain cable under different bending degree.

Description

Technical Field

[0001] This utility model relates to the field of cable fatigue testing technology, specifically to a drag chain cable bending fatigue testing device. Background Technology

[0002] Drag chain cables are highly flexible cables designed specifically for high-frequency reciprocating motion scenarios in industrial equipment. Installed on drag chains, they protect the cables from wear and oil corrosion as they move with the equipment, and ensure stable signal transmission. They are mainly used in industrial scenarios that require frequent movement, such as CNC machine tools, robots, wind power equipment, and fire-fighting lifting machinery. Bending fatigue tests are required during the production and processing of drag chain cables.

[0003] Existing methods for testing the bending fatigue resistance of drag chain cables make it difficult to control the degree of bending, thus failing to simulate real bending conditions for testing the bending fatigue resistance of drag chain cables. Therefore, this method does not meet the current requirements. To address this, we propose a new bending fatigue resistance testing device for drag chain cables. Utility Model Content

[0004] The purpose of this invention is to provide a bending fatigue testing device for drag chain cables, in order to solve the problem mentioned in the background art that it is not convenient to control the degree of bending of the drag chain cable during the bending fatigue testing process, and thus cannot meet the requirements of simulating real bending conditions for the bending fatigue testing of drag chain cables.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drag chain cable bending fatigue testing device, comprising an installation drive mechanism, clamping units installed on both sides of the installation drive mechanism, a positioning sliding mechanism installed on the inner side of the middle part of the installation drive mechanism, a bending push plate installed at the upper end of the positioning sliding mechanism, the positioning sliding mechanism comprising two guide slide plates, a connecting slide block slidably connected to the upper end surfaces of the two guide slide plates, two positioning toothed plates installed at the upper end of the connecting slide block, and a second locking knob installed at both ends of the two positioning toothed plates, the bending push plate being composed of multiple arc-headed racks arranged linearly.

[0006] Preferably, the installation drive mechanism includes a mounting box, a drive motor is fixedly mounted on the inner side of one of the corners of the mounting box, a drive wheel is fixedly mounted on the output end of the drive motor, and a transmission connecting rod is rotatably connected to the side of the drive wheel away from the drive motor.

[0007] Preferably, the clamping unit includes a protective box, a clamping cylinder is fixedly installed on the inner side of the protective box, a conical positioning seat is fixedly installed on the output end of the clamping cylinder, a plurality of first locking knobs are installed on the outer side of the conical positioning seat, and a positioning ring is installed on the inner side of the conical positioning seat.

[0008] Preferably, the end of the transmission link away from the drive wheel is rotatably connected to the bottom end of the connecting slide via a pin, and the drive wheel rotates clockwise and drives the connecting slide to slide linearly back and forth along the axis of the guide slide via the transmission link.

[0009] Preferably, both of the curved push plates are inserted between the connecting slide and the two positioning tooth plates. The two curved push plates are installed symmetrically with respect to the center of the connecting slide. The bottom end of the second locking knob passes through the positioning tooth plate and is connected to the connecting slide by a thread. The curved push plates are locked and installed on the upper surface of the connecting slide by the positioning tooth plate and the second locking knob.

[0010] Preferably, all of the multiple arc-head racks are in close contact with the connecting slide and the second locking knob, and there is close contact between each pair of adjacent arc-head racks. The positioning tooth plate and the multiple arc-head racks are connected by inter-tooth meshing.

[0011] Preferably, the two clamping units are symmetrically installed relative to the connecting slide. A drag chain cable is installed on the inner side of the two positioning rings. The drag chain cable is coaxial with the two conical positioning seats. One end of the first locking knob passes through the conical positioning seat and is in contact with the outer surface of the positioning ring. The first locking knob is threadedly connected to the conical positioning seat. The positioning ring and the conical positioning seat are locked together by a plurality of first locking knobs. The plurality of first locking knobs are arranged circumferentially relative to the axis of the positioning ring.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model locks the positioning ring by rotating multiple first locking knobs, keeping the two positioning rings in position for the drag chain cable and ensuring that the drag chain cable and the two conical positioning seats are coaxial. The clamping cylinder pulls the two ends of the drag chain cable through the conical positioning seats, the first locking knobs, and the positioning rings to keep the drag chain cable taut. The bending push plate is composed of multiple arc-headed racks arranged linearly. The installation position of the multiple arc-headed racks between the connecting slide and the positioning rack, i.e., the distance between the arc-headed racks and the drag chain cable, can be adjusted, thereby controlling the curvature of the bending push plate composed of multiple arc-headed racks near the end of the drag chain cable, thus satisfying the testing of different bending degrees of the drag chain cable by the bending push plate.

[0014] 2. This utility model uses a positioning toothed plate to mesh with multiple arc-head racks, and the positioning toothed plate is fixedly connected to the connecting slide by a second locking knob. Thus, the positioning toothed plate and the second locking knob can accurately adjust and position the arc-head racks, improving the accuracy of bending the drag chain cable by the bending push plate. The drive motor drives the drive wheel to rotate and drives the connecting slide to slide back and forth through the transmission link. In turn, the connecting slide drives the two bending push plates to perform reciprocating bending operations on the drag chain cable through the positioning toothed plate and the second locking knob, realizing accurate and efficient bending fatigue testing of the drag chain cable. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a top view of the entire utility model;

[0017] Figure 3 This is a cross-sectional structural diagram of the entire utility model;

[0018] Figure 4 This is a cross-sectional structural diagram of the installation drive mechanism of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the bending push plate of this utility model.

[0020] In the diagram: 1. Installation drive mechanism; 101. Mounting box; 102. Drive motor; 103. Drive wheel; 104. Transmission link; 2. Clamping unit; 201. Protective box; 202. Clamping cylinder; 203. Conical positioning seat; 204. First locking knob; 205. Positioning ring; 3. Positioning sliding mechanism; 301. Guide slide plate; 302. Connecting slide; 303. Positioning toothed plate; 304. Second locking knob; 4. Bending push plate; 401. Arc-head rack. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] The drive motor 102 (model GV50-3.7KW-60-S) and clamping cylinder 202 (model PSE10X10NMBS-A) mentioned in this utility model can be obtained from the market or through private customization.

[0023] Please see Figure 2 and Figure 3This utility model provides an embodiment of a drag chain cable bending fatigue testing device, including a mounting drive mechanism 1. A positioning sliding mechanism 3 is installed on the inner side of the middle part of the mounting drive mechanism 1. A bending push plate 4 is installed on the upper end of the positioning sliding mechanism 3. The positioning sliding mechanism 3 includes two guide slide plates 301. A connecting slide 302 is slidably connected to the upper end surface of the two guide slide plates 301. Two positioning toothed plates 303 are installed on the upper end of the connecting slide 302. A second locking knob 304 is installed at both ends of the two positioning toothed plates 303. The bending push plate 4 is composed of multiple arc-headed racks 401. The multiple arc-headed racks 401 are arranged linearly. The positioning sliding mechanism 3 facilitates the synchronous reciprocating sliding of the two bending push plates 4 and realizes the bending of the drag chain cable.

[0024] Please see Figures 1 to 4 The installation drive mechanism 1 includes a mounting box 101. A drive motor 102 is fixedly mounted on the inner side of one of the corners of the mounting box 101. A drive wheel 103 is fixedly mounted on the output end of the drive motor 102. A transmission link 104 is rotatably connected to the side of the drive wheel 103 away from the drive motor 102. The end of the transmission link 104 away from the drive wheel 103 is rotatably connected to the bottom end of the connecting slide 302 through a pin. The drive wheel 103 rotates clockwise and drives the connecting slide 302 to slide linearly back and forth along the axis of the guide slide 301 through the transmission link 104, so that the drive motor 102 drives the drive wheel 103 to rotate and drives the connecting slide 302 to slide back and forth through the transmission link 104.

[0025] Please see Figure 2 , Figure 3 and Figure 5 Two bending push plates 4 are inserted between the connecting slide 302 and the two positioning tooth plates 303. The two bending push plates 4 are symmetrically installed with respect to the center of the connecting slide 302. The bottom end of the second locking knob 304 passes through the positioning tooth plate 303 and is connected to the connecting slide 302 by a thread. The bending push plates 4 are locked on the upper surface of the connecting slide 302 by the positioning tooth plate 303 and the second locking knob 304. Multiple arc-head racks 401 are in close contact with the connecting slide 302 and the second locking knob 304. Each pair of adjacent arc-head racks 401 are in close contact with each other. The positioning tooth plate 303 and the multiple arc-head racks 401 are connected by inter-tooth meshing. The positioning tooth plate 303 and the second locking knob 304 can accurately adjust and position the arc-head racks 401, improving the accuracy of bending the drag chain cable by the bending push plates 4.

[0026] Please see Figures 1 to 4Clamping units 2 are installed on both sides of the drive mechanism 1. The two clamping units 2 are symmetrically installed relative to the connecting slide 302. Each clamping unit 2 includes a protective box 201. A clamping cylinder 202 is fixedly installed inside the protective box 201. A conical positioning seat 203 is fixedly installed at the output end of the clamping cylinder 202. Multiple first locking knobs 204 are installed on the outer side of the conical positioning seat 203. A positioning ring 205 is installed on the inner side of the conical positioning seat 203. A drag chain cable is installed on the inner side of the two positioning rings 205. The drag chain cable is connected to the two conical positioning seats 203. One end of the first locking knob 204 passes through the conical positioning seat 203 and is in contact with the outer surface of the positioning ring 205. The first locking knob 204 is threadedly connected to the conical positioning seat 203. The positioning ring 205 and the conical positioning seat 203 are locked together by multiple first locking knobs 204. The multiple first locking knobs 204 are arranged in a circle relative to the axis of the positioning ring 205, so that the clamping cylinder 202 pulls the two ends of the drag chain cable through the conical positioning seat 203, the first locking knob 204 and the positioning ring 205 to keep the drag chain cable taut.

[0027] In summary, when conducting bending fatigue tests on the drag chain cable, both ends of the drag chain cable are inserted into the inner sides of the two positioning rings 205 respectively. Then, the positioning rings 205 are locked by rotating multiple first locking knobs 204, maintaining the positioning and installation of the drag chain cable by the two positioning rings 205 and ensuring that the drag chain cable and the two conical positioning seats 203 are coaxial. The power is turned on, and the clamping cylinder 202 is activated. Under the support of the protective box 201, the clamping cylinder 202 pulls the two ends of the drag chain cable through the conical positioning seats 203, the first locking knobs 204 and the positioning rings 205, keeping the drag chain cable taut. The bending push plate 4 is composed of multiple arc-head racks 401 arranged linearly. The position of the arc-head racks 401 is adjusted according to the degree of bending in the drag chain cable test.

[0028] Specifically, the installation position of multiple arc-head racks 401 between the connecting slide 302 and the positioning tooth plate 303, i.e., the distance between the arc-head racks 401 and the drag chain cable, can be adjusted. This allows control over the curvature of the bending push plate 4 composed of multiple arc-head racks 401 near the drag chain cable, thereby satisfying the testing of different bending degrees of the drag chain cable by the bending push plate 4. The positioning tooth plate 303 is meshed with the teeth of the multiple arc-head racks 401, and the positioning tooth plate 303 is fixedly connected to the connecting slide 302 through the second locking knob 304. Thus, the positioning tooth plate 303 and the second locking knob 304 can precisely adjust and position the arc-head racks 401, improving the precision bending of the drag chain cable by the bending push plate 4.

[0029] Start the drive motor 102, which drives the drive wheel 103 to rotate under the support of the mounting box 101. The drive motor 102 then drives the connecting slide 302 to slide back and forth through the transmission link 104. The connecting slide 302 then drives the two bending push plates 4 to perform reciprocating bending operations on the drag chain cable through the positioning tooth plate 303 and the second locking knob 304, thereby achieving a precise and efficient bending fatigue test on the drag chain cable.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A drag chain cable bending fatigue testing device, comprising a mounting drive mechanism (1), characterized in that: The mounting drive mechanism (1) is equipped with clamping units (2) on both sides. The mounting drive mechanism (1) is equipped with a positioning sliding mechanism (3) on the inner side of the middle part. The positioning sliding mechanism (3) is equipped with a curved push plate (4) at the upper end. The positioning sliding mechanism (3) includes two guide slide plates (301). The upper end surfaces of the two guide slide plates (301) are slidably connected to a connecting slide (302). The upper end of the connecting slide (302) is equipped with two positioning tooth plates (303). The two ends of the two positioning tooth plates (303) are equipped with a second locking knob (304). The curved push plate (4) is composed of multiple arc-head racks (401). The multiple arc-head racks (401) are arranged linearly.

2. The drag chain cable bending fatigue testing equipment according to claim 1, characterized in that: The installation drive mechanism (1) includes a mounting box (101), a drive motor (102) is fixedly installed on the inner side of one of the corners of the mounting box (101), a drive wheel (103) is fixedly installed on the output end of the drive motor (102), and a drive link (104) is rotatably connected to the side of the drive wheel (103) away from the drive motor (102).

3. The drag chain cable bending fatigue testing equipment according to claim 2, characterized in that: The clamping unit (2) includes a protective box (201), a clamping cylinder (202) is fixedly installed on the inner side of the protective box (201), a conical positioning seat (203) is fixedly installed on the output end of the clamping cylinder (202), a plurality of first locking knobs (204) are installed on the outer side of the conical positioning seat (203), and a positioning ring (205) is installed on the inner side of the conical positioning seat (203).

4. The drag chain cable bending fatigue testing equipment according to claim 3, characterized in that: The end of the transmission link (104) away from the drive wheel (103) is rotatably connected to the bottom end of the connecting slide (302) via a pin. The drive wheel (103) rotates clockwise and drives the connecting slide (302) to slide linearly back and forth along the axis of the guide slide (301) via the transmission link (104).

5. The drag chain cable bending fatigue testing equipment according to claim 4, characterized in that: Both of the curved push plates (4) are inserted between the connecting slide (302) and the two positioning tooth plates (303). The two curved push plates (4) are symmetrically installed with respect to the center of the connecting slide (302). The bottom end of the second locking knob (304) passes through the positioning tooth plate (303) and is connected to the connecting slide (302) by a thread. The curved push plates (4) are locked on the upper surface of the connecting slide (302) by the positioning tooth plate (303) and the second locking knob (304).

6. The drag chain cable bending fatigue testing equipment according to claim 5, characterized in that: Multiple of the arc-head racks (401) are in contact with the connecting slide (302) and the second locking knob (304), and each pair of adjacent arc-head racks (401) are in contact with each other. The positioning tooth plate (303) is connected to the multiple arc-head racks (401) through inter-tooth meshing.

7. The drag chain cable bending fatigue testing equipment according to claim 6, characterized in that: The two clamping units (2) are symmetrically installed relative to the connecting slide (302). A drag chain cable is installed on the inner side of the two positioning rings (205). The drag chain cable is coaxial with the two conical positioning seats (203). One end of the first locking knob (204) passes through the conical positioning seat (203) and is in contact with the outer surface of the positioning ring (205). The first locking knob (204) is connected to the conical positioning seat (203) by a thread. The positioning ring (205) and the conical positioning seat (203) are locked together by a plurality of first locking knobs (204). The plurality of first locking knobs (204) are arranged in a circle relative to the axis of the positioning ring (205).

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