Tensioning device for carbon spring steel wire

Abstract

The utility model discloses a tensioning device of a carbon spring steel wire, which relates to the technical field of spring steel wire tensioning and comprises a tensioning device body, a pull rod is arranged on the inner side of the tensioning device body, and a steel wire rope is fixedly mounted at the upper end of the pull rod through a fixing part. By the adoption of the structure, after one end of the steel wire rope is connected with the fixing piece on the pull rod, the first screw can be rotated through the first rotating handle according to the installation position of the steel wire rope, so that the adjusting block which is in threaded connection with the outer side of the first screw and provided with the rectangular hole slides on the square frame; after the steel wire rope is pulled to be perpendicular to the pull rod in the stage, the steel wire rope can be limited in the perpendicular state by being matched with the limiting mechanism after being adjusted, and therefore the situation that when the steel wire rope is used in cooperation with an external component in the tensioning process, the steel wire rope is not damaged can be effectively avoided. And abrasion and deformation of the pull rod caused by deviation of the steel wire rope are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of spring wire tensioning, and particularly relates to a tensioning device for carbon spring wire. Background Technique

[0002] At present, high-altitude operations are generally required in the field of wind power generation. Lifting equipment is an important equipment used to transport personnel and materials during high-altitude operations. The safety of this kind of lifting equipment directly determines the personal safety of the operators. Most of this kind of lifting equipment uses steel wire ropes as guide rails, and the equipment runs up or down along the steel wire ropes. This requires the steel wire ropes to maintain a certain stiffness. Otherwise, it will cause the lifting equipment to deflect or even deviate from the running track during operation. Therefore, the tension of the steel wire ropes needs to be within a reasonable range. During the installation of the steel wire ropes, due to human errors, the tension of the steel wire ropes may be insufficient or excessive, which poses certain potential safety hazards to the safe operation of the lifting equipment.

[0003] Chinese Patent with Publication No. CN212639624U discloses a steel wire rope tensioning device, including: a platform, a steel wire rope, a support member, a connecting member, a scale, a die spring, a bearing, and an adjusting nut. One end of the connecting member is connected to the steel wire rope, passes through a reserved hole on the support member, and the other end is connected to the scale, the die spring, the bearing, and the adjusting nut, so that the tensioning device is connected to the steel wire rope; the platform is connected to the support member to form a stress member of the device, increasing the contact area between the device and the platform, and ensuring that the entire device has sufficient strength; the scale and the die spring are installed on the support member to provide tension for the entire device, and the magnitude of the tension is judged by observing the position corresponding to one end of the die spring on the scale; the bearing and the adjusting nut are used to adjust the magnitude of the tension applied to the steel wire rope.

[0004] However, in the actual use process of the above-mentioned steel wire rope tensioning device in the prior art, we found that there are still some deficiencies. For example, in the prior art, one end of the steel wire rope is connected to a fixing member and a pull rod, and there is a lack of a limiting structure on the platform plate of the tensioning device main body at the upper end of the steel wire rope. Therefore, when the upper end of the steel wire rope is used in cooperation with external components, it is easy for the position of the steel wire rope to shift, which will exacerbate the wear between the pull rod connected to the lower end of the steel wire rope and the frame body of the tensioning device main body and even cause deformation of the pull rod. Over time, it is also easy to reduce the stability of the use of the tensioning device main body. Content of the Utility Model

[0005] Aiming at the problems mentioned in the background technique, the purpose of the utility model is to provide a tensioning device for carbon spring wire to solve the problems mentioned in the above background technique.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions:

[0007] A tensioning device for carbon spring steel wire, comprising a tensioning device main body. A pull rod is arranged inside the tensioning device main body. A steel wire rope is fixedly installed at the upper end of the pull rod through a fixing piece. A platform plate is arranged at the upper end of the tensioning device main body. A through hole is formed inside the platform plate. An adjusting mechanism is fixedly installed at the lower end of the platform plate. A limiting mechanism is arranged inside the upper end of the adjusting mechanism;

[0008] The adjusting mechanism includes a square frame fixedly installed at the lower end of the platform plate. A first screw rod is rotatably connected inside the square frame. One end of the first screw rod penetrates through the wall of the square frame and is fixedly installed with a first rotating handle. An adjusting block is threadedly connected to the outer side of the first screw rod. A rectangular hole is formed inside the adjusting block. One end of the adjusting block is slidably connected inside the square frame. The limiting mechanism is arranged inside the upper end of the rectangular hole. The upper end of the steel wire rope penetrates through the rectangular hole;

[0009] The limiting mechanism includes a fixed concave wheel rotatably connected to one side of the inner wall of the rectangular hole. A moving plate is slidably connected inside the rectangular hole. A moving concave wheel is rotatably connected to the side of the moving plate facing the fixed concave wheel. A second screw rod is threadedly connected to the inner side of the upper end of the adjusting block. One end of the second screw rod is fixedly installed with a second rotating handle. The other end of the second screw rod away from the second rotating handle is threadedly extended into the inside of the rectangular hole and is rotatably connected to the moving plate.

[0010] As a preferred technical solution, fixed blocks are symmetrically and fixedly connected to the outer side of the square frame. Fixing holes are formed inside the fixed blocks. The fixed blocks are fixedly installed at the lower end of the platform plate through screws penetrating through the fixing holes.

[0011] As a preferred technical solution, a first screw sleeve is fixedly installed inside the adjusting block. The adjusting block is threadedly connected to the outer side of the first screw rod through the first screw sleeve.

[0012] As a preferred technical solution, a first sliding rod is fixedly installed inside the square frame. One end of the adjusting block is slidably connected to the outer side of the first sliding rod.

[0013] As a preferred technical solution, an assembly block is fixedly installed inside the rectangular hole. The wheel frame of the fixed concave wheel is fixedly installed with the assembly block.

[0014] As a preferred technical solution, a second screw sleeve is fixedly installed inside the adjusting block. One end of the second screw rod is threadedly penetrated through the second screw sleeve.

[0015] As a preferred technical solution, side grooves are symmetrically formed inside the rectangular hole. Second sliding rods are fixedly installed inside the side grooves. The end of the moving plate extends into the inside of the side grooves. The end of the moving plate is slidably connected to the outer side of the second sliding rods.

[0016] In summary, the utility model mainly has the following beneficial effects:

[0017] First, after connecting one end of the steel wire rope to the fixing member on the pull rod, according to the installation position of the steel wire rope, the first screw rod can be rotated by using the first rotating handle, so that the adjusting block with a rectangular hole thread - connected to the outside of the first screw rod slides at the square frame. Then, after the upper end of the steel wire rope penetrates through the rectangular hole, it can be further adjusted by the first rotating handle. In this stage, after the steel wire rope is pulled to a vertical state with the pull rod, the vertical state of the steel wire rope can be limited by the adjustment and cooperation with the limiting mechanism. Thus, it can effectively avoid the problems of wear and deformation of the pull rod caused by the deviation of the steel wire rope when it is used in cooperation with external components during the tensioning process of the steel wire rope.

[0018] Second, during the adjustment process by the adjusting block, one side of the vertical steel wire rope is abutted against the concave part of the fixed cam in the rectangular hole of the adjusting block, and then the second rotating handle is rotated. The rotation of the second rotating handle drives the second screw rod to thread - extend and retract on the adjusting block, and it rotates to push the moving plate to slide, driving the concave part of the moving cam to abut against the other side of the steel wire rope. Thus, it can facilitate the vertical limitation of the steel wire rope, and further effectively avoid the situation of wear and deformation of the supporting part of the pull - rod tightening device main body connected to the lower end of the steel wire rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the structural schematic diagram of the utility model;

[0020] Figure 2 is the adjusting mechanism of the utility model;

[0021] Figure 3 is the limiting mechanism of the utility model;

[0022] Figure 4 is of the utility model Figure 3 The enlarged view of part A in

[0023] Reference numerals: 1, tightening device main body; 2, pull rod; 3, fixing member; 4, steel wire rope; 5, through - hole; 6, adjusting mechanism; 601, square frame; 602, first rotating handle; 603, adjusting block; 604, first screw rod; 605, rectangular hole; 7, first screw sleeve; 8, fixing hole; 9, fixing block; 10, first slide bar; 11, assembly block; 12, second screw sleeve; 13, limiting mechanism; 131, fixed cam; 132, second screw rod; 133, moving plate; 134, moving cam; 135, second rotating handle; 14, side groove; 15, second slide bar; 16, platform plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Refer to Figures 1 to 4, a tensioning device for carbon spring steel wire described in this embodiment includes a tensioning device main body 1. A pull rod 2 is provided inside the tensioning device main body 1. A steel wire rope 4 is fixedly installed at the upper end of the pull rod 2 through a fixing member 3. A platform plate 16 is provided at the upper end of the tensioning device main body 1. A through hole 5 is opened inside the platform plate 16. An adjusting mechanism 6 is fixedly installed at the lower end of the platform plate 16. A limiting mechanism 13 is provided inside the upper end of the adjusting mechanism 6; the tensioning device main body 1 in this technical solution also includes components such as a support member, a carbon spring, a bearing, a scale, and an adjusting nut; its working principle is the same as that of a steel wire rope 4 tensioning device with the publication number CN212639624U. Its working principle is: the platform plate 16 is arranged at the upper end of the support member. The lower end of the pull rod 2 slides through the reserved hole of the support member, and one end is sequentially connected to the scale, the carbon spring, the bearing, and the adjusting nut, and the other end is connected to the steel wire rope 4. By changing the position of the adjusting nut on the pull rod 2, the carbon spring is compressed or extended. The scale and the carbon spring are arranged on the support member. When one end of the carbon spring is within the preset range on the scale, it indicates that the steel wire rope 4 has reached the appropriate tension level; another example is a steel wire rope tensioning device disclosed in the publication number CN206298244U. When the external component connected to the steel wire rope 4 is a guide wheel, and the arc surface structure of the guide wheel body is also likely to cause the position of the steel wire rope 4 and the pull rod 2 to deviate, resulting in wear and deformation of the pull rod 2. However, through this technical solution, the verticality of the pull rod 2 can be guaranteed;

[0025] The adjusting mechanism 6 includes a square frame 601. The square frame 601 is fixedly installed at the lower end of the platform plate 16. A first screw rod 604 is rotatably connected inside the square frame 601. One end of the first screw rod 604 penetrates through the frame wall of the square frame 601 and is fixedly installed with a first rotating handle 602. An adjusting block 603 is threadedly connected to the outer side of the first screw rod 604. A rectangular hole 605 is opened inside the adjusting block 603. One end of the adjusting block 603 is slidably connected inside the square frame 601. The limiting mechanism 13 is arranged inside the upper end of the rectangular hole 605. The upper end of the steel wire rope 4 penetrates through the rectangular hole 605. After connecting one end of the steel wire rope 4 to the fixing member 3 on the pull rod 2, according to the installation position of the steel wire rope 4, the first screw rod 604 can be rotated by using the first rotating handle 602, so that the adjusting block 603 with a rectangular hole 605 threadedly connected to the outer side of the first screw rod 604 slides at the square frame 601. Then, after the upper end of the steel wire rope 4 penetrates through the rectangular hole 605, it can be further adjusted by using the first rotating handle 602. At this stage, after the steel wire rope 4 is pulled to a vertical state with the pull rod 2, after adjustment, the vertical state of the steel wire rope 4 can be limited in cooperation with the limiting mechanism 13, so as to effectively avoid the problem of wear and deformation of the pull rod 2 caused by the deviation of the steel wire rope 4 when the steel wire rope 4 is tensioned and used in cooperation with external components;

[0026] The limiting mechanism 13 includes a fixed cam 131 which is rotatably connected to one side of the inner wall of the rectangular hole 605. A moving plate 133 is slidably connected to the inside of the rectangular hole 605. A moving cam 134 is rotatably connected to the side of the moving plate 133 facing the fixed cam 131. A second screw 132 is threadedly connected to the inner side of the upper end of the adjusting block 603. One end of the second screw 132 is fixedly installed with a second rotating handle 135. The other end of the second screw 132 away from the second rotating handle 135 is threadedly extended into the inside of the rectangular hole 605 and rotatably connected to the moving plate 133. When the adjusting block 603 is adjusted to an appropriate position, on one side perpendicular to the steel wire rope 4, during the adjustment process through the adjusting block 603, the perpendicular side of the steel wire rope 4 is abutted against the concave part of the fixed cam 131 in the rectangular hole 605 of the adjusting block 603. Then, by rotating the second rotating handle 135, the rotation of the second rotating handle 135 drives the second screw 132 to threadedly extend and retract on the adjusting block 603, and its rotation pushes the moving plate 133 to slide and drives the concave part of the moving cam 134 to abut against the other side of the steel wire rope 4, so that the vertical limit of the steel wire rope 4 can be conveniently carried out, and further effectively avoid the situation that the support frame part of the tensioning device main body 1 connected to the lower end of the steel wire rope 4 is worn and deformed.

[0027] Reference Figure 2 , symmetrically fixed blocks 9 are fixedly connected to the outside of the square frame 601. Fixing holes 8 are opened inside the fixed blocks 9. The fixed blocks 9 are fixedly installed at the lower end of the platform plate 16 through screws penetrating the fixing holes 8. By using the fixed blocks 9 with the fixing holes 8, the installation of the square frame 601 at the lower end of the platform plate 16 can be facilitated.

[0028] Reference Figure 2 , a first screw sleeve 7 is fixedly installed inside the adjusting block 603. The adjusting block 603 is threadedly connected to the outside of the first screw 604 through the first screw sleeve 7. A first sliding rod 10 is fixedly installed inside the square frame 601. One end of the adjusting block 603 is slidably connected to the outside of the first sliding rod 10. By using the adjusting block 603 with the first screw sleeve 7, the sliding on the first sliding rod 10 inside the square frame 601 can be facilitated.

[0029] Reference Figure 3 , an assembly block 11 is fixedly installed inside the rectangular hole 605. The wheel frame of the fixed cam 131 is fixedly installed with the assembly block 11. By using the assembly block 11 at the rectangular hole 605, the installation of the wheel frame of the fixed cam 131 at the rectangular hole 605 can be facilitated.

[0030] Reference Figure 4, a second screw sleeve 12 is fixedly installed on the inner side of the adjusting block 603. One end of the second screw rod 132 threadedly penetrates through the second screw sleeve 12. Side grooves 14 are symmetrically formed on the inner side of the rectangular hole 605. A second sliding rod 15 is fixedly installed on the inner side of the side groove 14. The end of the moving plate 133 extends into the inner side of the side groove 14, and the end of the moving plate 133 is slidably connected to the outer side of the second sliding rod 15. By threading and telescoping the second screw rod 132 inside the second screw sleeve 12 of the adjusting block 603, it is convenient to rotate the second screw rod 132 to push the end of the moving plate 133 to slide at the second sliding rod 15 of the side groove 14.

[0031] Principle and advantages of use: During use, after connecting one end of the steel wire rope 4 to the fixing member 3 on the pull rod 2, according to the installation position of the steel wire rope 4, the first screw rod 604 can be rotated by using the first rotating handle 602, so that the adjusting block 603 with a rectangular hole 605 threadedly connected to the outer side of the first screw rod 604 slides at the square frame 601. Then, after the upper end of the steel wire rope 4 penetrates through the rectangular hole 605, it can be further adjusted by the first rotating handle 602;

[0032] During the adjustment process by the adjusting block 603, one side of the vertical steel wire rope 4 is abutted against the concave part of the fixed cam 131 of the rectangular hole 605 of the adjusting block 603. Then, by rotating the second rotating handle 135, the second rotating handle 135 drives the second screw rod 132 to threadedly expand and contract on the adjusting block 603, and rotates to push the moving plate 133 to slide, driving the concave part of the moving cam 134 to abut against the other side of the steel wire rope 4, thus completing the limiting of the steel wire rope 4.

Claims

1. A tensioning device for a carbon spring steel wire, comprising a tensioning device body, characterized in that: A pull rod is provided on the inner side of the tensioning device body, a steel wire rope is fixedly installed on the upper end of the pull rod through a fixing piece, a platform plate is provided on the upper end of the tensioning device body, a through hole is opened on the inner side of the platform plate, an adjustment mechanism is fixedly installed on the lower end of the platform plate, and a limiting mechanism is provided on the inner side of the upper end of the adjustment mechanism; The adjusting mechanism comprises a square frame, the square frame is fixedly mounted on the lower end of the platform plate, the inner side of the square frame is rotatably connected with a first screw rod, one end of the first screw rod penetrates through the square frame wall and is fixedly mounted with a first rotary handle, the outer side of the first screw rod is threadedly connected with an adjusting block, a rectangular hole is provided on the inner side of the adjusting block, one end of the adjusting block is slidably connected to the inner side of the square frame, the limiting mechanism is arranged on the inner side of the upper end of the rectangular hole, and the upper end of the steel wire rope penetrates through the rectangular hole; The limiting mechanism includes a fixed concave wheel, which is rotatably connected to one side of the inner wall of the rectangular hole, a movable plate is slidably connected to the inner side of the rectangular hole, and the movable plate is rotatably connected to the movable concave wheel on the side facing the fixed concave wheel. The inner side of the upper end of the adjusting block is threadedly connected to a second screw rod, one end of the second screw rod is fixedly mounted with a second rotary handle, and the other end of the second screw rod away from the second rotary handle is threadedly extended into the inner side of the rectangular hole and rotatably connected to the movable plate.

2. A tensioning device for a carbon spring steel wire according to claim 1, characterized in that: The outer side of the square frame is symmetrically fixedly connected with a fixing block, the inner side of the fixing block is provided with a fixing hole, and the fixing block is fixedly installed by screws penetrating the fixing hole and the lower end of the platform plate.

3. A tensioning device for a carbon spring steel wire according to claim 1, characterized in that: A first screw sleeve is fixedly mounted on the inner side of the adjusting block, and the adjusting block is threadedly connected to the outer side of the first screw rod through the first screw sleeve.

4. A tensioning device for a carbon spring steel wire according to claim 1, characterized in that: A first sliding rod is fixedly installed on the inner side of the square frame, and one end of the adjustment block is slidably connected to the outer side of the first sliding rod.

5. A tensioning device for a carbon spring steel wire according to claim 1, characterized in that: An assembly block is fixedly installed on the inner side of the rectangular hole, and the wheel frame and the assembly block of the fixed concave wheel are fixedly installed.

6. A tensioning device for a carbon spring steel wire according to claim 1, characterized in that: A second screw sleeve is fixedly mounted on the inner side of the adjusting block, and one end of the second screw rod is threadedly penetrated through the second screw sleeve.

7. A tensioning device for a carbon spring steel wire according to claim 1, characterized in that: The inner side of the rectangular hole is symmetrically provided with side grooves, the inner side of the side grooves is fixedly provided with a second slide bar, the end of the movable plate extends into the inner side of the side grooves, and the end of the movable plate is slidably connected to the outer side of the second slide bar.

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