Double-wheel pay-off tensioner

Abstract

The utility model discloses a double-wheel pay-off tension machine which comprises a tension machine rack, a supporting frame fixed at the front end of the tension machine rack, wheels installed on the two sides of the tension machine rack and a motor installed on the left side of the tension machine rack, an inner cavity is formed in the tension machine rack, and two rotating shafts are installed on the inner wall of the inner cavity through embedded bearings. The outer rings of the shaft I and the shaft II are fixedly sleeved with a driving gear and a linkage gear respectively, the driving gear and the linkage gear are in transmission connection through an externally-meshed tooth-shaped chain, the driving gear is connected with the output end of the motor through the shaft I, and the end, away from the motor, of the shaft I penetrates through the inner wall of the inner cavity and is connected with a tension wheel set.

Description

Technical Field

[0001] The utility model belongs to the field of tension machines, and in particular relates to a double-wheel pay-off tension machine. Background Art

[0002] The tension machine is a wire-releasing device used for transmission line tensioning and aerial cableway erection operations. When the conductor is pulled by external force, it drives the two rollers to rotate. By adding a braking mechanism to the rollers, the conductor is evenly stressed during the wire-releasing process, which can effectively prevent the conductor from sagging and scratching the ground or branches. During operation, the device not only allows the tension wheel to release the conductor at a uniform speed, but also protects the outer skin of the conductor.

[0003] There are many designs of wire tension machines, among which single wheel and double wheel are the two most common structural forms. They each have different advantages and disadvantages and are suitable for different application scenarios:

[0004] Single-wheel tensioner has only one wheel, so it takes up less space and has a simple structure, making it relatively easy to operate and suitable for applications that require frequent adjustments. However, its tension distribution is uneven, especially when dealing with longer or heavier cables, which may affect the quality and consistency of the cables.

[0005] The double-wheel tension machine can distribute the tension more evenly, reduce the tension fluctuation of the cable during operation, and ensure the quality and consistency of the cable. However, it takes up a large space and is not suitable for use in space-constrained occasions.

[0006] Therefore, a tension machine with an adjustment function is needed to select whether to use a single wheel or double wheel form according to site needs. Utility Model Content

[0007] In view of the above defects, the utility model provides a double-wheel pay-off tension machine, including a tension machine frame, a support frame fixed to the front end of the tension machine frame, wheels installed on both sides of the tension machine frame, and a motor installed on the left side of the tension machine frame. An inner cavity is opened inside the tension machine frame, and two rotating shafts, namely shaft I and shaft II, are installed on the inner wall of the inner cavity through an embedded bearing I. The outer rings of shaft I and shaft II are respectively fixed with driving gears and linkage gears, and the driving gears and linkage gears are connected through an externally meshed toothed chain transmission. The driving gear is connected to the output end of the motor through shaft I, and one end of shaft I away from the motor passes through the inner wall of the inner cavity and is connected to a tension wheel group, and one end of shaft II away from the motor passes through the inner wall of the inner cavity and extends to the outside of the tension machine frame, and shaft II is connected through a linkage rod;

[0008] The tension wheel set includes a tension wheel I and a tension wheel II placed in the storage groove inside the tension wheel. A connecting frame is fixed to the inner ring of the tension wheel II, and a cross slot I is provided at the center of the connecting frame. A cross slot II adapted to the cross slot I is provided at one end of the linkage rod away from the shaft II;

[0009] A storage bin is also provided on the right side of the tension machine frame. The opening end of the storage bin is sealed by a hinged cover plate. A fixing mechanism and a support rod are placed inside the storage bin. The fixing mechanism includes a plug rod and a cross rod. The plug rod and the cross rod are connected by a bearing II. A threaded pipe is fixed to the bottom end of the plug rod. A threaded groove is provided on the bent surface of the tension machine frame. The threaded groove and the threaded pipe are threadedly connected at both ends of the support rod.

[0010] Furthermore, a rubber pad for limiting the tension wheel II is fixed to the inner ring of the tension wheel I.

[0011] Through the above technical solution, it is prevented that the tension wheel II located inside falls off when the tension wheel I rotates.

[0012] Furthermore, the connecting frame is in a cross shape.

[0013] Through the above technical solution, the stability during the transmission of the tension wheel II is increased.

[0014] Furthermore, the cross rod is adapted to the cross slot I and the cross slot II.

[0015] Through the above technical solution, subsequent linkage operations are ensured.

[0016] The present utility model has the following beneficial effects compared with the prior art:

[0017] Compared with the traditional double-wheel tension machine, the structure of a single wheel or a double wheel can be selected according to needs to adapt to different cable requirements in turn. In the case of light load or medium requirements, such as small wires, light optical fibers, etc., the single-wheel form can be used, while for occasions that require high-precision tension control and large load, such as heavy cables, large optical fibers, etc., it can be adjusted to the double-wheel form with higher tension requirements for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the present utility model in the single-wheel state.

[0019] Figure 2 It is a schematic diagram of the present utility model in the double-wheel state.

[0020] Figure 3 It is a schematic diagram of the tension wheel set in the present utility model.

[0021] Figure 4It is a schematic diagram of the fixing mechanism in the utility model.

[0022] Figure 5 It is a schematic diagram of the driving gear and the linkage gear in the utility model.

[0023] In the figure: 1. tension machine frame; 2. tension wheel group; 21. tension wheel I; 22. storage slot; 23. tension wheel II; 24. connecting frame; 25. cross slot I; 3. storage compartment; 4. threaded groove; 5. linkage rod; 6. fixing mechanism; 61. insertion rod; 62. bearing II; 63. cross rod; 64. threaded tube; 7. support rod; 8. driving gear; 9. linkage gear; 10. toothed chain. DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The drawings provide embodiments of the device. However, the device can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Example

[0027] like Figures 1-5 As shown, this embodiment provides a double-wheel pay-off tension machine, including a tension machine frame 1, a support frame fixed to the front end of the tension machine frame 1, wheels installed on both sides of the tension machine frame 1, and a motor installed on the left side of the tension machine frame 1. An inner cavity is opened inside the tension machine frame 1, and two rotating shafts are installed on the inner wall of the inner cavity through an embedded bearing I, namely, shaft I and shaft II. The outer rings of shaft I and shaft II are respectively fixed with a driving gear 8 and a linkage gear 9, and the driving gear 8 and the linkage gear 9 are connected by an external meshing toothed chain 10. The driving gear 8 is connected to the output end of the motor through the shaft I, that is, the driving gear 8 can be driven to rotate by the motor driving shaft I, and the linkage gear 9 driven by the toothed chain 10 can be driven to rotate synchronously. The end of the shaft I away from the motor passes through the inner wall of the inner cavity and is connected to the tension wheel group 2. The end of the shaft II away from the motor passes through the inner wall of the inner cavity and extends to the outside of the tension machine frame 1. The shaft II is connected with a linkage rod 5.

[0028] The tension wheel set 2 includes a tension wheel I 21 and a tension wheel II 23 placed at the storage groove 22 inside the tension wheel 21. A rubber pad for limiting the tension wheel II 23 is fixed on the inner ring of the tension wheel I 21. Its function is that when single-wheel operation is adopted, the tension wheel II 23 located inside the storage groove 22 is limited by the rubber pad (by filling the gap between the tension wheel II 23 and the storage groove 22 where it is located) so that the tension wheel II 23 will not fall off from inside the storage groove 22. A cross-shaped connecting frame 24 with good connectivity and stability is fixed on the inner ring of the tension wheel II 23. A cross slot I 25 is opened at the center of the connecting frame 24. A cross slot II adapted to the cross slot I 25 is opened at the end of the linkage rod 5 far from the shaft II.

[0029] A storage bin 3 is also opened on the right side of the tension machine frame 1. The opening end of the storage bin 3 is sealed by a hinged cover plate. A fixing mechanism 6 and a support rod 7 are placed inside the storage bin 3. The fixing mechanism 6 includes a plug rod 61 and a cross rod 63. It should be noted that the cross rod 63 is adapted to the cross slot I 25 and the cross slot II. The plug rod 61 and the cross rod 63 are connected by a bearing II 62. A threaded pipe 64 is fixed at the bottom end of the plug rod 61. A threaded groove 4 is provided on the bent surface of the tension machine frame 1. The threaded groove 4 and the threaded pipe 64 are threadedly connected at both ends of the support rod 7.

[0030] For the double-wheel wire laying tension machine described in this embodiment, when single-wheel use is required, directly wind the cable around the outside of the tension wheel I 21, and drive the tension wheel I 21 to rotate synchronously through the drive of the motor.

[0031] When double-wheel use is required, first take out the tension wheel II 23, the fixing mechanism 6 and the support rod 7. Pass the cross rod 63 through the cross slot I 25 located at the center of the tension wheel II 23 and the cross slot II located at the linkage rod 5 in sequence, and fix the tension wheel II 23 in suspension on the side of the tension machine frame 1. Then fix the support rod 7 between the threaded pipe 64 and the threaded groove 4 by threaded connection to complete the support of the tension wheel II 23. At this time, turn on the motor. The driving gear 8 drives the tension wheel 21 to rotate, and the driven gear 9 driven by the toothed chain 10 synchronously can drive the tension wheel II 23 to rotate synchronously through the linkage rod 5 fixed by the shaft II, so as to achieve the effect of increasing the tension.

[0032] It should be noted that the structure described in the present invention can be implemented in many different forms and is not limited to the embodiments. Any equivalent transformation made by those of ordinary skill in the art using the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, such as the loading and unloading of other items, is included in the protection scope of the present invention.

Claims

1. A two-wheel wire pay-off tensioner, comprising a tensioner frame, a support frame fixed to the front end of the tensioner frame, wheels installed on both sides of the tensioner frame, and a motor installed on the left side of the tensioner frame, characterized in that: An inner cavity is provided inside the tension machine frame, and two rotating shafts, namely, shaft I and shaft II, are installed on the inner wall of the inner cavity through an embedded bearing I. The outer rings of shaft I and shaft II are respectively fixed with driving gears and linkage gears, and the driving gears and linkage gears are connected through an external meshing toothed chain transmission. The driving gear is connected to the output end of the motor through shaft I. One end of shaft I away from the motor passes through the inner wall of the inner cavity and is connected to a tension wheel set. One end of shaft II away from the motor passes through the inner wall of the inner cavity and extends to the outside of the tension machine frame, and a linkage rod is connected through shaft II. The tension wheel group includes a tension wheel I and a tension wheel II placed in a storage groove inside the tension wheel. A connecting frame is fixed to the inner ring of the tension wheel II. A cross slot I is opened at the center of the connecting frame. A cross slot II matching the cross slot I is opened at one end of the linkage rod away from the shaft II. A storage bin is also provided on the right side of the tension machine frame. The open end of the storage bin is sealed by a hinged cover plate. A fixing mechanism and a support rod are placed inside the storage bin. The fixing mechanism includes an insert rod and a cross rod. The insert rod and the cross rod are connected by bearing II. A threaded tube is fixed to the bottom end of the insert rod. A threaded groove is provided on the bending surface of the tension machine frame. The threaded groove and the threaded tube are connected by threads at both ends of the support rod.

2. The double-wheel wire pay-off tensioner according to claim 1, characterized in that: The inner ring of the tension wheel I is fixed with a rubber pad for limiting the position of the tension wheel II.

3. The double-wheel wire pay-off tensioner according to claim 1, characterized in that: The connecting frame is in the shape of a cross.

4. A double-wheel wire pay-off tensioner according to claim 1, characterized in that: The cross rod is adapted to the cross slot I and the cross slot II.

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