Tensioning equipment capable of increasing tension

Abstract

The utility model discloses tensioning equipment for increasing tension, and particularly relates to the field of tensioning equipment, which comprises a fixed base, a limiting cylinder is welded at the center of the top of the fixed base, the middle of the limiting cylinder is connected with a movable shaft through a bearing, and two ends of the movable shaft penetrate through the limiting cylinder and extend to the outside. The outer wall of one end of the movable shaft is in key connection with a first wire passing wheel, the end, away from the first wire passing wheel, of the movable shaft is in key connection with a friction wheel, the upper portion of one side of the supporting column is connected with a connecting block through a bolt, the top of the connecting block is connected with an adjusting plate through a bolt, and an adjusting screw is arranged at the bottom of the adjusting plate. When the friction wheel rotates, due to the fact that the friction wheel abuts against the friction belt, the stress of the rotating friction wheel is increased, the tension of the first wire passing wheel is increased, the tension is increased when the first wire passing wheel and the second wire passing wheel conduct a steel wire rope, and it is guaranteed that the pay-off tension is even.

Description

Technical Field

[0001] The utility model relates to the field of tensioning equipment, and more specifically, to a tensioning equipment for increasing tension. Background Art

[0002] The wire rope needs to be tensioned during the release process to ensure the stability and safety of the wire rope in use;

[0003] After searching, the existing patent (publication number: CN216997424U) discloses a wire rope tensioning device and lifting equipment. The wire rope is released from the driving wheel and connected to the lifting object through the pulley assembly and the driven wheel in sequence; the pulley assembly can move along the radial direction of the wire rope in the track to adjust the tension of the wire rope. The utility model automatically adjusts the tension of the wire rope during use through the pulley assembly that moves along the radial direction of the wire rope and the adjustable compression spring, keeps the wire rope in a taut state at all times, and prevents the problem of the wire rope falling off the driving wheel and the driven wheel. In the process of realizing the utility model, the inventor found that the existing technology has the following problems:

[0004] Most of the wire pay-off equipment currently used in the market only uses the tension system for adjustment. The center wire pay-off is the same as the outer wire pay-off. Some equipment has an additional tensioning device for the center wire, which is relatively rough. Once the tension system is damaged or the friction plate is worn, the tension will be uneven, causing quality risks for the wire rope strands. In the process, the center wire pay-off tension needs to be greater than the outer wire tension, and the same tension system cannot effectively amplify the tension;

[0005] Therefore, in view of the above problems, a tensioning device for increasing tension is proposed. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides a tensioning device for increasing tension to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tensioning device for increasing tension, comprising a fixed base, a limiting cylinder welded at the top center of the fixed base, a movable shaft connected to the middle of the limiting cylinder through a bearing, both ends of the movable shaft extend to the outside through the limiting cylinder, a No. 1 wire-passing wheel is keyed to the outer wall of one end of the movable shaft, a friction wheel is keyed to the end of the movable shaft away from the No. 1 wire-passing wheel, a support column is welded to the top of the limiting cylinder, a connecting block is bolted to the upper side of one side of the supporting column, an adjusting plate is bolted to the top of the connecting block, an adjusting screw is arranged at the bottom of the adjusting plate;

[0008] A connecting ring is provided at the bottom of the adjusting screw, the top of the adjusting screw is threadedly connected with an adjusting nut through the adjusting plate, the bottom of the adjusting screw is connected with a hooked tension spring through the connecting ring, and the end of the hooked tension spring away from the connecting ring is connected with a friction belt.

[0009] Preferably, one end of the friction belt away from the hook tension spring wraps around the outer wall of the friction wheel and is connected to the connecting block.

[0010] Preferably, a limiting groove is provided on a side of the support column away from the connecting block, and a screw rod is connected to the middle of the limiting groove via a bearing.

[0011] Preferably, the outer wall of the screw rod is threadedly connected with a moving block, the outer wall of the moving block matches the inner wall of the limiting groove, and the moving block is embedded in the limiting groove.

[0012] Preferably, a fixed shaft is connected to a side of the movable block away from the limiting groove, and a middle outer wall of the fixed shaft is connected to a No. 2 wire passing wheel via a bearing.

[0013] Preferably, the No. 2 wire passing wheel and the No. 1 wire passing wheel are on the same straight line, and the middle outer walls of the No. 2 wire passing wheel and the No. 1 wire passing wheel are both provided with wire grooves.

[0014] Preferably, an adjusting knob is provided on the top of the support column, and an adjusting end of the adjusting knob is connected to the screw rod.

[0015] Preferably, mounting holes are arranged at the bottom of the fixed base.

[0016] Technical effects and advantages of the utility model:

[0017] Compared with the prior art, this tensioning device for increasing the tension can make the No. 1 wire-passing wheel and the friction wheel rotate synchronously through the movable shaft, so as to increase the tension of the wire. When the friction wheel rotates, it abuts against the friction belt, so that the force on the rotating friction wheel increases, thereby increasing the tension of the No. 1 wire-passing wheel, so that the tension of the No. 1 wire-passing wheel and the No. 2 wire-passing wheel is increased when transmitting the wire rope, thereby ensuring the uniform tension of the wire-paying. When the tension needs to be adjusted, the adjusting nut can be twisted to drive the adjusting screw to move up and down, so that the connecting ring drives the belt hook tension spring to move to tighten or loosen the friction belt, thereby realizing the adjustment and increase of the tension of the No. 1 wire-passing wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0019] Figure 2 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 3It is a schematic diagram of the structure of the No. 2 wire passing wheel of the utility model.

[0021] Figure 4 The utility model is a schematic diagram of the connection structure of the hook tension spring and the adjusting screw.

[0022] The accompanying drawings are marked as follows: 1. fixed base; 2. limiting cylinder; 3. movable shaft; 4. No. 1 wire wheel; 5. friction wheel; 6. support column; 7. connecting block; 8. adjustment plate; 9. adjusting screw; 91. connecting ring; 92. adjusting nut; 10. tension spring with hook; 11. friction belt; 12. limiting groove; 13. screw; 14. moving block; 15. fixed shaft; 16. No. 2 wire wheel; 161. wire groove; 17. adjusting knob; 18. mounting hole. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0024] As attached Figures 1 to 3 A tensioning device for increasing tension shown in the figure comprises a fixed base 1, a limiting cylinder 2 is welded at the top center of the fixed base 1, a movable shaft 3 is connected to the middle of the limiting cylinder 2 through a bearing, both ends of the movable shaft 3 pass through the limiting cylinder 2 and extend to the outside, a No. 1 wire-passing wheel 4 is keyed to the outer wall of one end of the movable shaft 3, a friction wheel 5 is keyed to the end of the movable shaft 3 away from the No. 1 wire-passing wheel 4, a support column 6 is welded to the top of the limiting cylinder 2, a connecting block 7 is bolted to the upper side of one side of the supporting column 6, an adjusting plate 8 is bolted to the top of the connecting block 7, an adjusting screw 9 is arranged at the bottom of the adjusting plate 8;

[0025] A connecting ring 91 is provided at the bottom of the adjusting screw 9, and the top of the adjusting screw 9 is threadedly connected with an adjusting nut 92 through the adjusting plate 8. The bottom of the adjusting screw 9 is connected to a hooked tension spring 10 through the connecting ring 91, and the end of the hooked tension spring 10 away from the connecting ring 91 is connected to a friction belt 11.

[0026] Wherein: the wire rope can be transmitted through the No. 1 wire wheel 4, and the No. 1 wire wheel 4 and the friction wheel 5 can rotate synchronously through the movable shaft 3, so as to increase the wire tension. When the friction wheel 5 rotates, it abuts against the friction belt 11, so that the force on the rotating friction wheel 5 increases, thereby increasing the tension of the No. 1 wire wheel 4, so that the tension of the wire rope is increased when the No. 1 wire wheel 4 and the No. 2 wire wheel 16 transmit the wire rope, ensuring the uniform wire release tension. When the tension needs to be adjusted, the adjusting nut 92 can be twisted to drive the adjusting screw 9 to move up and down, so that the connecting ring 91 drives the hook tension spring 10 to move to tighten or loosen the friction belt 11, thereby realizing the increase of the adjustment of the tension of the No. 1 wire wheel 4. Example

[0027] Based on Example 1, the solution in Example 1 is further detailed in combination with the following specific working method. Figures 1 to 4 As shown, see the following description for details:

[0028] As a preferred embodiment, the end of the friction belt 11 away from the hook spring 10 wraps around the outer wall of the friction wheel 5 and is connected to the connecting block 7; further, the connecting block 7 plays a connecting role, and the hook spring 10 plays a pulling role and has a certain elastic force to avoid excessive tightening force that makes the friction wheel 5 difficult to rotate.

[0029] As a preferred embodiment, a limiting groove 12 is provided on the side of the support column 6 away from the connecting block 7, and a screw rod 13 is connected to the middle of the limiting groove 12 through a bearing; further, the limiting groove 12 plays a limiting role, and the screw rod 13 can rotate in the limiting groove 12.

[0030] As a preferred embodiment, the outer wall of the screw 13 is threadedly connected to a moving block 14, the outer wall of the moving block 14 matches the inner wall of the limiting groove 12, and the moving block 14 is embedded in the limiting groove 12; further, the rotation of the screw 13 can drive the moving block 14 to perform lifting and lowering movements, the helix angle of the screw 13 and the moving block 14 is small and self-locking, and the limiting groove 12 can limit the moving block 14 to rotate with the screw 13.

[0031] As a preferred embodiment, a fixed shaft 15 is connected to the side of the moving block 14 away from the limiting groove 12, and the middle outer wall of the fixed shaft 15 is connected to the second wire-passing wheel 16 through a bearing; further, the fixed shaft 15 plays a fixing role, and the second wire-passing wheel 16 cooperates with the first wire-passing wheel 4 to transmit and increase the tension of the wire rope.

[0032] As a preferred embodiment, the second wire wheel 16 and the first wire wheel 4 are in the same straight line, and the middle outer walls of the second wire wheel 16 and the first wire wheel 4 are both provided with a wire groove 161; further, the wire groove 161 facilitates the wire rope to bypass the wire wheel to prevent the wire rope from slipping.

[0033] As a preferred embodiment, an adjusting knob 17 is provided on the top of the support column 6, and the adjusting end of the adjusting knob 17 is connected to the screw 13; further, the screw 13 can be driven to rotate by twisting the adjusting knob 17, and the rotation of the screw 13 can drive the movable block 14 to perform lifting and lowering movements, thereby driving the fixed shaft 15 and the No. 2 wire-passing wheel 16 to perform translational movements, thereby adjusting the wheel spacing between the No. 2 wire-passing wheel 16 and the No. 1 wire-passing wheel 4, which can help maintain the tension balance of the wire thread. Different degrees of wire rope can be adjusted at appropriate spacings through the adjuster to reduce or increase the friction between the wire rope and the wire-passing wheel itself during the transmission process, thereby reducing the risk of wear and breakage. The No. 1 wire-passing wheel 4 and the No. 2 wire-passing wheel 16 are fixed during the transmission process, and the tension will not jump, thereby ensuring uniform tension.

[0034] As a preferred embodiment, mounting holes 18 are arranged at the bottom of the fixed base 1 ; further, the fixed base 1 can be fixedly connected to the workbench by inserting bolts into the mounting holes 18 .

[0035] The working process of the utility model is as follows: first, the steel wire is sequentially wound around the second wire-passing wheel 16 and the first wire-passing wheel 4 for two circles for transmission, and the first wire-passing wheel 4 and the friction wheel 5 can be rotated synchronously through the movable shaft 3, so that the tension of the steel wire can be increased. When the friction wheel 5 is rotating, the friction belt 11 is abutted against the rotating friction wheel 5, so that the force on the rotating friction wheel 5 increases, thereby increasing the tension of the first wire-passing wheel 4, so that the tension of the wire rope is increased when the first wire-passing wheel 4 and the second wire-passing wheel 16 are transmitted, ensuring that the wire-releasing tension is uniform. When the tension needs to be adjusted, the adjusting nut 92 can be twisted to drive the adjusting screw 9 to perform a lifting movement, so that the connecting ring 91 drives the hook tension spring 10 to move to tighten or loosen the friction belt 11, thereby realizing the adjustment and increase of the tension of the first wire-passing wheel 4. , by twisting the adjusting knob 17, the screw 13 can be driven to rotate, and the rotation of the screw 13 can drive the moving block 14 to perform lifting and lowering movements, thereby driving the fixed shaft 15 and the No. 2 wire-passing wheel 16 to perform translational movements, thereby adjusting the wheel spacing between the No. 2 wire-passing wheel 16 and the No. 1 wire-passing wheel 4, which can help maintain the tension balance of the wire thread. Different degrees of wire rope can be adjusted by the appropriate spacing of the adjuster to reduce or increase the friction between the wire rope and the wire-passing wheel itself during the transmission process, thereby reducing the risk of wear and breakage. The No. 1 wire-passing wheel 4 and the No. 2 wire-passing wheel 16 are fixed during the transmission process, and the tension will not jump, thereby ensuring uniform tension. The fixed base 1 can be fixedly connected to the workbench by inserting bolts into the mounting hole 18. The above is the working principle of this tensioning device for increasing tension.

[0036] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A tensioning device for increasing tension, comprising a fixed base (1), characterized in that: A limiting cylinder (2) is welded at the center of the top of the fixed base (1); a movable shaft (3) is connected to the middle of the limiting cylinder (2) via a bearing; both ends of the movable shaft (3) pass through the limiting cylinder (2) and extend to the outside; an outer wall of one end of the movable shaft (3) is keyed to a first thread-passing wheel (4); an end of the movable shaft (3) away from the first thread-passing wheel (4) is keyed to a friction wheel (5); a support column (6) is welded to the top of the limiting cylinder (2); a connecting block (7) is bolted to the top of one side of the supporting column (6); an adjusting plate (8) is bolted to the top of the connecting block (7); an adjusting screw (9) is provided at the bottom of the adjusting plate (8); A connecting ring (91) is provided at the bottom of the adjusting screw (9); the top of the adjusting screw (9) passes through the adjusting plate (8) and is threadedly connected to an adjusting nut (92); the bottom of the adjusting screw (9) is connected to a hooked tension spring (10) via the connecting ring (91); and the end of the hooked tension spring (10) away from the connecting ring (91) is connected to a friction belt (11).

2. A tensioning device for increasing tension according to claim 1, characterized in that: One end of the friction belt (11) away from the hook tension spring (10) wraps around the outer wall of the friction wheel (5) and is connected to the connecting block (7).

3. A tensioning device for increasing tension according to claim 1, characterized in that: A limiting groove (12) is provided on a side of the support column (6) away from the connection block (7), and a screw rod (13) is connected to the middle of the limiting groove (12) via a bearing.

4. A tensioning device for increasing tension according to claim 3, characterized in that: The outer wall of the screw rod (13) is threadedly connected to a moving block (14); the outer wall of the moving block (14) matches the inner wall of the limiting groove (12); and the moving block (14) is embedded in the limiting groove (12).

5. A tensioning device for increasing tension according to claim 4, characterized in that: A fixed shaft (15) is connected to the side of the moving block (14) away from the limiting groove (12), and a middle outer wall of the fixed shaft (15) is connected to a second wire passing wheel (16) via a bearing.

6. A tensioning device for increasing tension according to claim 5, characterized in that: The second wire passing wheel (16) and the first wire passing wheel (4) are located on the same straight line, and the middle outer walls of the second wire passing wheel (16) and the first wire passing wheel (4) are both provided with wire grooves (161).

7. A tensioning device for increasing tension according to claim 4, characterized in that: An adjusting knob (17) is provided on the top of the support column (6), and an adjusting end of the adjusting knob (17) is connected to the screw rod (13).

8. A tensioning device for increasing tension according to claim 1, characterized in that: The bottom of the fixed base (1) is arranged with mounting holes (18).

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