A cable strength detection device

Abstract

The utility model discloses a kind of cable strength detection devices, belong to cable material detection technical field, including pressure sensing base, combination briquetting and strength detection lead screw, wherein, the top of pressure sensing base is installed limiting component, combination briquetting is slidably arranged in limiting component, simultaneously, combination briquetting is located at the top of pressure sensing base, to detect the stress change of the detection sample in limiting component. On the other hand, combination briquetting is abutted with one end of spring, the other end of spring is abutted with limiting component, the closing of combination briquetting can be effectively made by spring release elastic force, to play the role of fixed cable sample. Moreover, detection pressure head can be inserted into combination briquetting through limiting component, so as to extrude cable sample in combination briquetting. Compared with prior art, the utility model has the advantages of solid structure, easy to operate, can detect cable strength in production line quickly, to realize to product batch quality inspection.

Description

Technical Field

[0001] This utility model relates to the field of cable material testing technology, specifically to a cable strength testing device. Background Technology

[0002] Because cables are far from the ground, they are easily affected by various forces such as gravity, tension, and torque. Therefore, they need to undergo multiple testing processes during the production process before they can be used, including strength testing.

[0003] However, cable strength testing requires specialized equipment to perform tensile, compression, and bending tests on the cables. In many cases, the conditions for conducting such tests are not available on the production line. Therefore, most manufacturers currently test the cables by applying pressure and estimating their strength based on the indentations left by the compression.

[0004] In view of this, the applicant proposes a new improvement scheme to quickly test the cable strength in the production line. Utility Model Content

[0005] Therefore, this utility model provides a cable strength testing device to solve the problem that the cable strength cannot be quickly tested due to unreasonable design of the testing device in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model discloses a cable strength testing device, comprising:

[0008] A pressure-sensing base, with a limiting component mounted on top, is adapted to detect changes in force within the limiting component.

[0009] The combined pressure block has its bottom abutting against the pressure sensing base and its top abutting against one end of the spring. The other end of the spring abuts against the limiting member, and the combined pressure block is slidably disposed inside the limiting member.

[0010] The strength testing screw has a testing head at its end. The testing head passes through the limiting member and is inserted into the combined pressure block. A worm wheel is sleeved on the outside and is threadedly connected to the worm wheel. The worm wheel is meshed with a worm gear mechanism. The worm gear mechanism is installed on the side of the pressure sensing base.

[0011] The spring is sleeved on the strength detection screw, and the detection pressure head is adapted to pass through the combined pressure block to squeeze the cable sample.

[0012] Furthermore, the strength detection lead screw includes:

[0013] The guide block is prism-shaped, with a detection pressure head installed at the tail end and the head end connected to the slide rod.

[0014] The lead screw is fixedly connected to the slide rod at its bottom end, and the lead screw passes through the limiting member and is inserted into the center of the worm gear.

[0015] Furthermore, the combined pressure block includes:

[0016] The upper pressure block has a guide groove at the top, a guide block is slidably disposed in the guide groove, and a through hole suitable for the detection pressure head to pass through is provided in the guide groove;

[0017] The sliding sleeve has its bottom set on the top of the upper pressure block and covers the guide groove. The side of the upper pressure block is provided with a limit protrusion, and the bottom is provided with a slot. A lower pressure block is arranged below the upper pressure block.

[0018] The lower pressure block and the upper pressure block have the same structure and are arranged symmetrically in the horizontal direction.

[0019] Furthermore, the limiting component includes a stand, a guide groove, and a connecting plate. A worm gear is rotatably provided on the top of the connecting plate, a pair of stands are symmetrically provided on the bottom of the connecting plate, a guide groove is provided in the middle of the stand, and the limiting protrusion is slidably provided in the guide groove.

[0020] Furthermore, the pressure-sensing base includes a base body and a pressure sensor. The worm gear mechanism is installed on the side of the base body, and the pressure sensor is located at the center of the base body, at the bottom of the lower pressure block.

[0021] Furthermore, a laser rangefinder is provided at the head end of the lead screw, and the laser rangefinder is adapted to emit a detection beam upward.

[0022] Furthermore, the worm gear mechanism includes a frame, a worm, and a handle. The handle is coaxially connected to the worm, and the worm is horizontally rotatably mounted on the frame and meshes with the worm wheel.

[0023] This utility model has the following advantages:

[0024] This utility model discloses a cable strength testing device. First, a spring releases its elastic force, causing a combined pressure block to close and press against the sample. As the strength testing screw continues to descend, the testing head passes through the combined pressure block, pressing against the sample and leaving an indentation on the sample surface. By measuring the distance the testing head travels above and below the sample and the change in load on the pressure sensing base, the Brinell hardness value can be accurately calculated, and the material strength can be estimated accordingly. This utility model has the advantages of robust structure and ease of use, solving the problem in existing technologies where unreasonable design of the testing device prevents rapid testing of cable strength. Attached Figure Description

[0025] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0026] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0027] Figure 1 A perspective view of the cable strength testing device provided by this utility model;

[0028] Figure 2 A perspective view of the limiting component provided by this utility model;

[0029] Figure 3 A three-dimensional view of the combined pressing block provided by this utility model;

[0030] Figure 4 A perspective view of the sliding sleeve provided for this utility model;

[0031] Figure 5 A three-dimensional view of the strength testing lead screw provided by this utility model;

[0032] Figure 6 A perspective view of the pressure-sensing base provided for this utility model;

[0033] In the diagram: 1. Pressure sensing base; 11. Seat body; 12. Pressure sensor; 2. Limiting component; 21. Stand; 22. Slide groove; 23. Connecting plate; 3. Combined pressure block; 31. Upper pressure block; 32. Limiting protrusion; 33. Sliding sleeve; 34. Slot; 35. Guide groove; 36. Through hole; 37. Lower pressure block; 4. Worm gear; 5. Strength detection screw; 51. Guide block; 52. Slide rod; 53. Screw; 6. Worm gear mechanism; 61. Frame; 62. Worm; 63. Handle; 7. Spring; 8. Detection pressure head. Detailed Implementation

[0034] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0035] Please refer to this as well. Figures 1-6 This utility model discloses a cable strength testing device, which mainly calculates the tensile strength of the cable sample by detecting the Rockwell hardness of the cable sample. The technical solution disclosed in this utility model will be described below by way of specific embodiments.

[0036] In one specific embodiment of this utility model, the cable strength testing device includes a pressure-sensing base 1, a combined pressure block 3, and a strength testing screw 5. A limiting member 2 is installed on the top of the pressure-sensing base 1, and the combined pressure block 3 is slidably disposed within the limiting member 2. The combined pressure block 3 is located on the pressure-sensing base 1 to detect changes in force within the limiting member 2. Furthermore, the combined pressure block 3 abuts against one end of a spring 7, and the other end of the spring 7 abuts against the limiting member 2. The combined pressure block 3 is used to mount the cable sample to be tested. The release of the spring 7 effectively closes the combined pressure block 3, thereby fixing the cable sample.

[0037] In this embodiment, the strength detection screw 5 is inserted into the spring 7, and a detection pressure head 8 is provided at the end of the strength detection screw 5. The detection pressure head 8 passes through the limiting member 2 and is inserted into the combined pressure block 3, thereby squeezing the cable sample inside the combined pressure block 3. A worm wheel 4 is sleeved on the outside of the strength detection screw 5, and together with the worm wheel 4, they form a helical pair screw. At the same time, the worm wheel 4 is meshed and connected to the worm gear mechanism 6, which is installed on the side of the pressure sensing base 1. Thus, by rotating the worm gear mechanism 6, the worm wheel 4 can be rotated, which in turn drives the strength detection screw 5 to move up and down.

[0038] In this embodiment, the worm gear mechanism 6 includes a frame 61, a worm 62, and a handle 63. The handle 63 is coaxially connected to the worm 62. The worm 62 is horizontally rotatably mounted on the frame 61 and meshes with the worm wheel 4. Furthermore, the testing indenter 8 is spherical and, according to the Rockwell hardness testing standard, has a diameter of 1.588 mm. The mathematical relationship between Brinell hardness (HB) and tensile strength is σ... 抗拉 ≈3.5×HB, thus the tensile strength value can be estimated relatively accurately.

[0039] In some embodiments, the strength testing screw 5 includes a guide block 51 and a screw 53. The guide block 51 is prism-shaped and is inserted into the guide groove 35 of the combined pressure block 3 to form a planar pair. When the worm gear 4 rotates, the worm gear 4 drives the screw 53 to move up and down through the planar pair and the helical pair. The tail end of the guide block 51 is equipped with a testing head 8, which can drive the testing head 8 to squeeze the testing sample.

[0040] In this embodiment, the first end of the guide block 51 is connected to the slide rod 52, which slides into the sliding sleeve 33. The slide rod 52 is coaxially and fixedly connected to the bottom end of the lead screw 53, and the lead screw 53 passes through the limiting member 2 and inserts into the center of the worm gear 4. Thus, when the lead screw 53 moves upward, the guide block 51 can separate the combined pressure block 3 by dragging the sliding sleeve 33.

[0041] In this embodiment, a laser rangefinder is provided at the head end of the lead screw 53. The laser rangefinder is adapted to emit a detection beam upward, which can illuminate a fixed obstacle. Thus, when the lead screw 53 moves, the distance of the lead screw 53 moving up and down can be detected by the laser rangefinder.

[0042] In some embodiments, the combined pressure block 3 includes an upper pressure block 31, a sliding sleeve 33, and a lower pressure block 37, wherein the lower pressure block 37 and the upper pressure block 31 have the same structure and are arranged symmetrically in the horizontal direction. The top of the upper pressure block 31 is provided with a guide groove 35, within which a guide block 51 is slidably disposed. The guide groove 35 also has a through hole 36 suitable for the detection pressure head 8 to pass through. The bottom of the sliding sleeve 33 is disposed on top of the upper pressure block 31 and covers the guide groove 35. A limiting protrusion 32 is provided on the side of the upper pressure block 31, located within a groove 22 on the limiting member 2. A slot 34 is provided at the bottom of the limiting protrusion 32 for securing experimental samples.

[0043] In a specific embodiment of the present invention, the limiting component 2 includes a stand 21, a slide groove 22 and a connecting plate 23. A worm gear 4 is rotatably provided on the top of the connecting plate 23, and a pair of stands 21 are symmetrically provided on the bottom of the connecting plate 23. A slide groove 22 is provided in the middle of the stand 21, and a limiting protrusion 32 is slidably provided in the slide groove 22.

[0044] In some embodiments, the pressure sensing base 1 includes a base 11 and a pressure sensor 12. A worm gear mechanism 6 is mounted on the side of the base 11, and a pressure sensor 12 is provided at the center of the base 11. The pressure sensor 12 is located at the bottom of the lower pressure block 37, thereby measuring the force applied during the process of the pressure head squeezing the sample.

[0045] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A cable strength testing device, characterized in that, include: A pressure-sensing base (1) with a limiting member (2) mounted on top, and adapted to detect changes in force within the limiting member (2). The combined pressure block (3) has its bottom abutting against the pressure sensing base (1) and its top abutting against one end of the spring (7). The other end of the spring (7) abuts against the limiting member (2). The combined pressure block (3) is slidably disposed inside the limiting member (2). The strength detection screw (5) is provided with a detection head (8) at its end. The detection head (8) passes through the limiting member (2) and is inserted into the combined pressure block (3). A worm wheel (4) is sleeved on the outside and is threadedly connected to the worm wheel (4). The worm wheel (4) is meshed with the worm mechanism (6) for transmission. The worm mechanism (6) is installed on the side of the pressure sensing base (1). The spring (7) is sleeved on the strength detection screw (5), and the detection pressure head (8) is adapted to pass through the combined pressure block (3) to squeeze the cable sample.

2. The cable strength testing device as described in claim 1, characterized in that, The strength detection lead screw (5) includes: The guide block (51) is prism-shaped, with a detection pressure head (8) installed at the tail end and the head end connected to the slide rod (52); The lead screw (53) is coaxially and fixedly connected to the slide rod (52) at its bottom end. The lead screw (53) passes through the limiting member (2) and is inserted into the center of the worm gear (4).

3. The cable strength testing device as described in claim 2, characterized in that, The combined pressing block (3) includes: The upper pressure block (31) has a guide groove (35) on its top. A guide block (51) is slidably disposed in the guide groove (35). A through hole (36) suitable for the detection pressure head (8) to pass through is disposed in the guide groove (35). The sliding sleeve (33) is located at the top of the upper pressure block (31) and covers the guide groove (35). The upper pressure block (31) has a limit protrusion (32) on its side and a slot (34) at its bottom. A lower pressure block (37) is arranged below the upper pressure block (31). The lower pressure block (37) and the upper pressure block (31) have the same structure and are arranged symmetrically in the horizontal direction.

4. The cable strength testing device as described in claim 3, characterized in that, The limiting component (2) includes a stand (21), a slide groove (22) and a connecting plate (23). A worm gear (4) is rotatably provided on the top of the connecting plate (23). A pair of stands (21) are symmetrically provided on the bottom of the connecting plate (23). A slide groove (22) is provided in the middle of the stand (21). The limiting protrusion (32) is slidably provided in the slide groove (22).

5. The cable strength testing device as described in claim 3, characterized in that, The pressure sensing base (1) includes a base (11) and a pressure sensor (12). The worm gear mechanism (6) is installed on the side of the base (11). The pressure sensor (12) is located at the center of the base (11) and at the bottom of the pressure block (37).

6. The cable strength testing device as described in claim 3, characterized in that, A laser rangefinder is provided at the head end of the lead screw (53), and the laser rangefinder is adapted to emit a detection beam upward.

7. The cable strength testing device as described in claim 1, characterized in that, The worm gear mechanism (6) includes a frame (61), a worm (62) and a handle (63). The handle (63) is coaxially connected to the worm (62). The worm (62) is horizontally rotatably mounted on the frame (61) and meshes with the worm wheel (4).

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