A tension loading tooling suitable for multi-configuration ropes

Abstract

The application provides a tension loading tool suitable for multi-configuration ropes, comprising a support frame, a position adjusting component in sliding connection with the support frame and fixed in position through a fastener, a plurality of cable force adjusting components, each of which is arranged on the position adjusting component, a rope connected between each two cable force adjusting components, and a display in electrical connection with the cable force adjusting components to display the tension value of the rope. The application can meet the tension cable loading requirements of various space deployable structure rope configurations through the arrangement of multiple groups of cable force adjusting components with variable poses, and the adjustment and loading of positions and angles are very convenient, which can significantly improve the tension cable loading efficiency in different working conditions in the field of space deployable device rope tension measurement.

Description

Technical Field

[0001] This application belongs to the field of space flexible rope testing technology, and in particular relates to a tension loading fixture suitable for multi-configuration ropes. Background Technology

[0002] With the rapid development of space activities such as space exploration, Earth remote sensing, ocean exploration and military reconnaissance, and the trend of space structures becoming larger and more complex, the size of spacecraft is gradually increasing. Flexible cables, with their advantages of light weight, high tensile strength and good traction, are widely used in space cable net capture structures and space deployable structures.

[0003] Since flexible cables play a crucial role in space structures, in order to ensure that these flexible cable structures maintain their shape robustness in the space environment, it is necessary to conduct research on the mechanical properties of the cables under different tension forces on the ground, including studies on stiffness and vibration characteristics.

[0004] With the diversification of deployable structures, the shape of ropes is no longer limited to a single rope configuration, and special configurations such as crossed ropes, parallel ropes, and cable nets have gradually emerged. In this case, traditional rope tension loading fixtures can only load a single rope, which cannot meet the requirements of loading multiple ropes and tension loading of cable assemblies. Furthermore, the traditional rope tension loading process is often accompanied by the stretching of the rope length. This drawback is that the single variable of tension is not controlled, which will affect the dynamic study of cable assemblies. Summary of the Invention

[0005] In view of this, this application aims to provide a tension loading fixture suitable for multi-configuration ropes to solve at least one of the above-mentioned problems.

[0006] To achieve the above objectives, the technical solution of this application is implemented as follows: This application provides a tension loading fixture suitable for multi-configuration ropes, comprising: Supporting framework; A position adjustment component is slidably connected to the support frame and its position is fixed by fasteners. A tension adjustment component, wherein there are at least two tension adjustment components, which are respectively disposed on the position adjustment component, and a rope is connected between each pair of tension adjustment components. The tension adjustment component is used to adjust the tension of the rope. A display, electrically connected to the cable tension adjustment member, is provided to display the tension value of the rope.

[0007] Furthermore, the support frame is formed by multiple grooved support members enclosing it; The position adjustment component includes two sliding plates, and sliding blocks are provided at the ends of the two sliding plates. The sliding blocks are slidably disposed in the inner groove of the support member, and the sliding plates and the sliding blocks are fixed in position by fasteners.

[0008] Furthermore, a groove is formed on the sliding plate; It also includes a connecting block that can be clamped on the sliding plate. The connecting block has a through hole corresponding to the through groove. The cable tension adjusting member passes through the through hole and the through groove and is detachably mounted on the connecting block.

[0009] Furthermore, the cable tension adjustment component includes a vibration damping connector, an adjusting bolt, a threaded sleeve, a tension / compression sensor, and a fixing component; The two vibration damping blocks of the vibration damping connector are connected by a connecting block. A connecting bolt is provided on one side of the outer wall of one of the vibration damping blocks. The connecting bolt passes through the through hole and the through groove and is fastened by a nut. The adjusting bolt passes through the vibration damping block and is threadedly connected to the threaded sleeve. The other end of the threaded sleeve is threadedly connected to a stud at one end of the tension / compression sensor. The stud at the other end of the tension / compression sensor is threadedly connected to the fixing component. The tension / compression sensor is connected to the display via an electrical connection wire. A gap is reserved between the fixing member and the other vibration damping block, and clamping bolts are provided on both side walls of the fixing member and the other vibration damping block to clamp the rope.

[0010] Furthermore, the main body of the adjusting bolt is a smooth rod structure, which penetrates the vibration damping block, and the end of the adjusting bolt is provided with an external thread; The diameter of the end is larger than the diameter of the body, and the external thread provided at the end matches the internal thread hole provided in the threaded sleeve.

[0011] Furthermore, an anti-loosening nut is provided at the connection between the end and the threaded sleeve.

[0012] Furthermore, each wall surface of the fastener is provided with interconnected internal threaded holes, wherein the diameter of one of the internal threaded holes is equal to the diameter of the stud provided on the tension / compression sensor; One of the vibration damping blocks has an inner hole corresponding to the internal thread hole on the fixing member, so that the rope can pass through.

[0013] Furthermore, the clamping bolt has an axially through hole.

[0014] Furthermore, both the sliding plate and the support member are provided with scales.

[0015] Compared with the prior art, the tension loading fixture suitable for multi-configuration ropes described in this application has the following advantages: The tension loading fixture for multi-configuration ropes described in this application, by setting bolts for adjusting the position and adjusting bolts for adjusting the rope tension, can achieve convenient and rapid adjustment of the rope tension loading position and the rope tension magnitude. It can cope with different working conditions of rope tension loading for spatially deployable devices, avoiding the time-consuming, labor-intensive, and material-wasting problem of rebuilding the experimental frame due to changes in working conditions. While accurately loading the rope tension, it significantly improves the rope tension loading efficiency when switching between different working conditions. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of a tension loading fixture structure suitable for multi-configuration ropes, as described in an embodiment of this application. Figure 2 This is a schematic diagram of the position adjustment component structure described in the embodiments of this application; Figure 3 This is a schematic diagram of the cable tension adjustment component structure described in the embodiments of this application; Figure 4 This is a schematic diagram of the single rope tension loading structure described in Embodiment 1 of this application; Figure 5 This is a schematic diagram of the cross-rope tension loading structure described in Embodiment 2 of this application.

[0017] Explanation of reference numerals in the attached figures: 1-Support frame; 2-Position adjustment component; 21-Sliding plate; 22-Sliding block; 23-Groove; 24-Connecting block; 25-Through hole; 3-Cable tension adjustment component; 31-Vibration damping connector; 32-Adjusting bolt; 33-Threaded sleeve; 34-Tension / compression sensor; 35-Fixing component; 36-Clamping bolt; 37-Connecting bolt; 38-Anti-loosening nut; 39-Through hole; 4-Display; 5-Rope. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.

[0019] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this application should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in the embodiments of this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0020] Please see Figure 1 As shown, this embodiment provides a tension loading fixture suitable for multi-configuration ropes, including: Supporting framework 1; Position adjustment component 2 is slidably connected to support frame 1 and its position is fixed by fasteners; There are at least two cable tension adjustment components 3, which are respectively arranged on the position adjustment component 2. A rope 5 is connected between each pair of cable tension adjustment components 3. The cable tension adjustment components 3 are used to adjust the tension of the rope 5. Display 4 is electrically connected to cable tension adjustment component 3 to display the tension value of rope 5.

[0021] Specifically, in this embodiment, by setting a position adjustment component 2 on the support frame 1 and cooperating with the cable force adjustment component 3, the tension loading requirements of different rope configurations 5 can be met. During the cable force loading process, the length of the rope 5 is stretched, and the cable force adjustment component 3 is used to adjust and control the single variable of tension.

[0022] The rope tension loading fixture described in this embodiment, by setting bolts for adjusting the position and adjusting bolts 32 for adjusting the rope tension, can achieve convenient and quick adjustment of the rope tension loading position and the rope tension magnitude. It can cope with different working conditions of rope tension loading for spatial deployable devices, avoiding the time-consuming, labor-intensive, and material-wasting problem of rebuilding the experimental frame due to changes in working conditions. While accurately loading the rope tension, it significantly improves the rope tension loading efficiency when changing different working conditions.

[0023] In some embodiments, the support frame 1 is formed by a plurality of grooved support members enclosing it; like Figure 2As shown, the position adjustment component 2 includes two sliding plates 21, and the ends of the two sliding plates 21 are provided with sliding blocks 22. The sliding blocks 22 are slidably disposed in the inner groove of the support member, and the sliding plates 21 and sliding blocks 22 are fixed in position by fasteners. The sliding plate 21 has a groove 23. It also includes a connecting block 24 that can be clamped on the sliding plate 21. The connecting block 24 has a through hole 25 corresponding to the through groove 23. The cable tension adjustment member 3 passes through the through hole 25 and the through groove 23 and is detachably mounted on the connecting block 24.

[0024] Specifically, in this embodiment, the shape of the support frame 1 is not limited to a rectangle, but it is necessary to ensure that the rigidity of the platform is large enough, its fundamental frequency is greater than 5 times that of the fundamental frequency of the rope 5 component, and it is provided with an inner groove. The inner groove is marked with scale as needed to provide a reference for the longitudinal coordinate positioning of the position adjustment component 2, so as to ensure that the sliding plate 21 can be moved to the required position.

[0025] The sliding plate 21 is a rectangular plate with a groove 23 for the cage to move and rotate freely on it, and scales are marked as needed to provide a reference for the coordinate positioning of the cable force adjustment component 3.

[0026] Each pair of connecting blocks 24 forms a group, located on both sides of the sliding plate 21, with a through hole 39 in the middle, and connected to the sliding plate 21 and connecting blocks 24 by bolts provided on the cable tension adjustment component 3.

[0027] In some implementations, such as Figure 3 As shown, the cable tension adjustment component 3 includes a vibration damping connector 31, an adjusting bolt 32, a threaded sleeve 33, a tension / compression sensor, and a fixing component 35; The two vibration damping blocks of the vibration damping connector 31 are connected by the connecting block 24. One of the vibration damping blocks has a connecting bolt 37 on one side of its outer wall. The connecting bolt 37 passes through the through hole 25 and the through groove 23 and is fastened by a nut. Adjusting bolt 32 passes through the vibration damping block and is threadedly connected to threaded sleeve 33. The other end of threaded sleeve 33 is threadedly connected to a stud at one end of tension / compression sensor 34. The stud at the other end of tension / compression sensor 34 is threadedly connected to fixing member 35. Tension / compression sensor 34 is connected to display 4 via electrical connection line. The range of tension / compression sensor 34 can be freely selected, but it is necessary to ensure that the range covers the tension adjustment range of loading rope 5. Display 4 can display the real-time tension values ​​of four force sensors and has both real-time detection and peak hold functions. A gap is reserved between the fixing member 35 and another vibration damping block. Clamping bolts 36 are provided on both sides of the fixing member 35 and the other vibration damping block to clamp the rope 5. The main body of the adjusting bolt 32 is a smooth rod structure, which passes through the vibration damping block, and the end of the adjusting bolt 32 is provided with external thread; The diameter of the end is larger than the diameter of the main body, and the external thread provided at the end matches the internal thread hole provided in the threaded sleeve 33. An anti-loosening nut 38 is also provided at the connection between the end and the threaded sleeve 33.

[0028] Specifically, in this embodiment, the position of the adjusting bolt 32 is controlled, thereby adjusting the reserved gap width between the fixing member 35 and the vibration damping block. The display 4 displays the tension value of the tension sensor 34 in the current state to meet the loading requirements of the tension force on the rope 5.

[0029] In some embodiments, each wall surface of the fastener 35 is provided with interconnected internal threaded holes, wherein the diameter of one internal threaded hole is equal to the diameter of the stud provided on the tension / compression sensor. One of the vibration damping blocks has an inner hole corresponding to the internal thread hole on the fixing member 35, so that the rope 5 can pass through.

[0030] Specifically, in this embodiment, the fixing member 35 is a cube structure with threaded through holes 39 on 6 walls. One of them is threaded to the stud on the tension / compression sensor 34, two of them are threaded to the clamping bolt, one of them corresponds to the inner hole on the vibration damping block, and the other two are for the operator to observe the state and clamping position of the rope 5 in the hole.

[0031] In some embodiments, the clamping bolt 36 has an axially oriented through hole 39 to ensure the stability of the clamping.

[0032] Example 1: like Figure 4 As shown, the specific steps for applying a 5-tension load to a single rope using this fixture are as follows: 1) Select any two cable tension adjustment components 3, and adjust the position of the cable tension adjustment components 3 according to the length of the rope 5; 2) Use clamping bolts to clamp both ends of rope 5 to ensure that rope 5 does not loosen during loading; 3) Tighten the tension adjusting bolt 32 to tighten the rope 5, and adjust it to the required tension value according to the value on the display 4; 4) If a dynamic experiment of rope 5 is required, tighten the fastening bolts on the support frame 1; if a fixed length of rope 5 with rated tension is required, mark the scale on rope 5 and cut it.

[0033] Example 2: like Figure 5As shown, the specific steps for applying tension to a cross rope 5 or a rope 5 assembly with four ropes 5 connected in parallel using this fixture are as follows: 1) Select four cable tension adjustment components 3, and adjust the position and tilt angle of the cable tension adjustment components 3 according to the length of the rope 5; 2) Use clamping bolts to clamp the four ends of rope 5 assembly to ensure that rope 5 does not loosen during loading; 3) Tighten the four tension adjusting bolts 32 in sequence to tension each rope 5, and adjust them according to the values ​​on the display 4 so that the tension of the four ropes 5 reaches the required tension value. 4) If a dynamic experiment of rope 5 is required, tighten the fastening bolts on the support frame 1; if a fixed length of rope 5 with rated tension is required, mark the scale on each end of rope 5 and cut it.

[0034] Example 3: Using this fixture, the stiffness of rope 5 can be tested. The specific steps are as follows: 1) Select any two cable tension adjustment components 3, and adjust the position of the cable tension adjustment components 3 according to the length of the rope 5; 2) Use clamping bolts to clamp both ends of rope 5 to ensure that rope 5 does not loosen during loading; 3) Tighten the tension adjusting bolt 32 to tighten the rope 5, and record the tension value and current scale coordinates on the display 4. The stiffness of the rope 5 is obtained according to the formula k=ΔF / ΔL, where ΔF is the tension value of the display 4 at any two positions, and ΔL is the change in the elongation of the rope 5.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

[0036] The embodiments of this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the embodiments of this application should be included within the protection scope of this application.

Claims

1. A tension loading fixture suitable for multi-configuration ropes, characterized in that, include: Supporting framework; A position adjustment component is slidably connected to the support frame and its position is fixed by fasteners. The position adjustment component includes a sliding plate, and a groove is formed on the sliding plate; It also includes a connecting block that can be clamped on the sliding plate, and the connecting block has a through hole corresponding to the through groove; A tension adjustment component, wherein there are at least two tension adjustment components, which are respectively disposed on the position adjustment component, and a rope is connected between each pair of tension adjustment components. The tension adjustment component is used to adjust the tension of the rope. The cable tension adjustment component includes a vibration damping connector, an adjusting bolt, a threaded sleeve, a tension / compression sensor, and a fixing component; The two vibration damping blocks of the vibration damping connector are connected by a connecting block. A connecting bolt is provided on one side of the outer wall of one of the vibration damping blocks. The connecting bolt passes through the through hole and the through groove and is fastened by a nut. The adjusting bolt passes through the vibration damping block and is threadedly connected to the threaded sleeve. The other end of the threaded sleeve is threadedly connected to a stud at one end of the tension / compression sensor. The stud at the other end of the tension / compression sensor is threadedly connected to the fixing component. The tension / compression sensor is connected to a display via an electrical connection line to display the tension value of the rope. A gap is reserved between the fixing member and the other vibration damping block, and clamping bolts are provided on both side walls of the fixing member and the other vibration damping block to clamp the rope. The main body of the adjusting bolt is a smooth rod structure, which penetrates the vibration damping block, and the end of the adjusting bolt is provided with external threads; The diameter of the end is larger than the diameter of the body, and the external thread provided at the end matches the internal thread hole provided in the threaded sleeve.

2. The tension loading fixture suitable for multi-configuration ropes according to claim 1, characterized in that: The support frame is formed by multiple grooved support members. There are two sliding plates, and each of the two sliding plates has a sliding block at its end. The sliding block is slidably disposed in the inner groove of the support member, and the sliding plates and the sliding block are fixed in position by fasteners.

3. The tension loading fixture suitable for multi-configuration ropes according to claim 1, characterized in that: An anti-loosening nut is also provided at the connection between the end and the threaded sleeve.

4. The tension loading fixture suitable for multi-configuration ropes according to claim 1, characterized in that: Each wall surface of the fastener is provided with interconnected internal threaded holes, wherein the diameter of one of the internal threaded holes is equal to the diameter of the stud provided on the tension / compression sensor. One of the vibration damping blocks has an inner hole corresponding to the internal thread hole on the fixing member, so that the rope can pass through.

5. A tension loading fixture suitable for multi-configuration ropes according to claim 1, characterized in that: The clamping bolt has an axial through hole.

6. A tension loading fixture suitable for multi-configuration ropes according to claim 2, characterized in that: Both the sliding plate and the support member are provided with scales.

Images