Tension control device for cable drum pay-off rack

Abstract

The utility model discloses a tension control device for a cable drum pay-off rack, and relates to the technical field of cable pay-off devices. The first belt pulley is mounted on an input shaft of the reduction gearbox; the mounting frame is arranged on the reduction gearbox; the air cooling cover is arranged on the mounting frame; the clutch is arranged on the mounting frame, and the clutch is located in the air cooling cover; the second belt pulley is installed at the output end of the clutch, a belt is installed between the second belt pulley and the first belt pulley, and the second belt pulley is located in the air cooling cover. According to the utility model, the technical problem of unstable tension of the cable unwinding device in the prior art is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of cable laying devices, and in particular to a tension control device for a cable reel laying frame. Background Technology

[0002] Existing cable reel unwinding frames present several problems in controlling cable tension during the unwinding process. On one hand, traditional tension control methods, such as using a brake and adjusting the spring force via a handwheel to control the tightness of the brake pads, have poor accuracy in tension adjustment and cannot meet the needs of high-precision cable laying or production. On the other hand, this adjustment method is inconvenient to operate, requiring frequent manual adjustments, increasing the labor intensity and difficulty for workers. The unwinding tension lacks precise measurement and control, and there is no intuitive numerical display. Therefore, the adjustment of cable unwinding tension is greatly influenced by the operating experience of production personnel. In principle, the cable product should not be stretched thin, and the cable tension must be kept stable during the unwinding process.

[0003] The existing equipment has the following problems when unwinding: (1) the reel and the cable it contains are not concentric, which will affect the stability of the unwinding tension; (2) the friction of the roller bearing of the pin shaft of the existing cable unwinding machine under heavy load will also lead to insufficient unwinding tension; (3) the cable reel will also have a greater impact on the unwinding tension when it is accelerated or decelerated rather than rotated at a constant speed. In summary, the above problems will lead to insufficient tension stability, thus affecting the quality of the cable. Utility Model Content

[0004] The purpose of this invention is to provide a tension control device for cable reel unwinding frame, which solves the technical problem of unstable tension in existing cable unwinding devices.

[0005] This application discloses a cable reel tension control device, comprising:

[0006] Gearbox;

[0007] The first pulley is mounted on the input shaft of the gearbox;

[0008] Mounting bracket, provided on the gearbox;

[0009] An air-cooled shroud is mounted on the mounting bracket;

[0010] A clutch is mounted on the mounting bracket and is located inside the air-cooling shroud;

[0011] The second pulley is installed at the output end of the clutch, and a belt is installed between the second pulley and the first pulley. The second pulley is located inside the air-cooling shroud.

[0012] In this embodiment, a clutch is added to the gearbox to provide braking force, which enables the cable to be unwound stably and slowly, thereby ensuring the stability of the tension during unwinding.

[0013] Based on the above technical solution, the embodiments of this application can be further improved as follows:

[0014] Furthermore, the mounting bracket includes:

[0015] A base plate, which is connected to the gearbox;

[0016] The bracket side plate is vertically mounted on the base plate, and the bracket side plate is located outside the air-cooling cover. The beneficial effect of this step is that the stability of the clutch after assembly can be guaranteed by the mounting bracket.

[0017] Furthermore, the clutch is a magnetic powder clutch, and the beneficial effect of this step is to achieve stable braking through a specific clutch.

[0018] Furthermore, the two ends of the clutch spindle are respectively connected to the side plate of the bracket. The beneficial effect of this step is that it can further ensure the stability of the clutch after assembly.

[0019] Furthermore, a pulley spacer is provided between the end of the second pulley and the inner wall of the air-cooling shroud. The advantage of this step is that it prevents other components such as the air-cooling shroud from affecting the stable operation of the second pulley.

[0020] Furthermore, a flange is installed at the end of the clutch, and a resilient pin is installed between the flange and the second pulley. The advantage of this step is that the resilient pin can further ensure the stability of the second pulley during operation.

[0021] Furthermore, the belt is a V-belt, and the beneficial effect of this step is that the V-belt can improve the stability of torque transmission.

[0022] Furthermore, the gearbox is a three-axis, two-stage gearbox.

[0023] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0024] 1. This application adds a clutch to provide stable braking force, which is then amplified by a reduction gearbox, so that the cable can be unwound slowly and stably, reducing the amplitude of tension changes and preventing the cable from being stretched thin, thus affecting product quality.

[0025] 2. This application provides braking torque through the cooperation of a clutch and a reduction gearbox, and by adjusting the clutch, provides different torques, thereby ensuring the stability of the cable during unwinding.

[0026] 3. This application uses the side plates of the brackets on both sides to fix the magnetic powder clutch and the pulley. The structure is simple, easy to disassemble and maintain, and the entire mechanism operates smoothly and is balanced in force.

[0027] 4. The second pulley and the magnetic powder clutch in this application are connected by a flexible coupling, which can compensate for the axial and radial displacement of both, reduce the installation accuracy requirements, and at the same time have low noise and can buffer and absorb vibration.

[0028] 5. The second pulley at the magnetic powder clutch end and the first pulley on the gearbox in this application are connected by a V-belt, which has an overload protection function. The V-belt slips on the pulley to prevent the gears and magnetic powder clutch from being damaged due to excessive force, thus playing a safety protection role. Attached Figure Description

[0029] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the tension control device for a cable reel pay-off frame according to a specific embodiment of the present invention;

[0031] Figure 2 for Figure 1 The left view;

[0032] The attached figures are labeled as follows:

[0033] 1-Gearbox; 2-First pulley; 3-Mounting bracket; 4-Air-cooled cover; 5-Clutch; 6-Second pulley; 7-Belt; 8-Flange; 9-Elastic pin; 10-Pulley spacer;

[0034] 301 - Base plate; 302 - Support side plate. Detailed Implementation

[0035] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0036] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0037] In the description of this application, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this utility model.

[0038] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] To better understand the above technical solutions, the following will provide a detailed description of the technical solutions in conjunction with the accompanying drawings and specific embodiments.

[0040] Example 1:

[0041] like Figure 1-2 As shown in the figure, this application discloses a cable reel tension control device, which is a redesign of the existing tension control device. It replaces the existing mechanical tension disc friction plate control form with a clutch and a gearbox rubber combination, which can ensure the stability of the tension.

[0042] like Figure 1 , 2 As shown, the specific structure of this application is as follows, including:

[0043] Gearbox 1, which is used to amplify torque, is an existing structure and will not be described in detail here;

[0044] The first pulley 2 is installed on the input shaft of the reduction gearbox 1. The first pulley 2 is an existing pulley, which, together with the subsequent clutch, can realize the function of amplifying torque.

[0045] Mounting bracket 3 is mounted on the gearbox 1. This mounting bracket 3 serves as a support component and is subsequently used for assembling components such as the clutch.

[0046] The air-cooled cover 4 is installed on the mounting bracket 3. The air-cooled cover 4 is used to cool down and prevent the temperature of the clutch and belt from getting too high, which would affect the stable operation of the entire device. Specifically, a centrifugal fan is subsequently installed on the air-cooled cover 4 to send air into the air-cooled cover, thereby achieving the cooling function.

[0047] The clutch 5 is mounted on the mounting bracket 3 and is located inside the air-cooled cover 4. The mounting bracket 3 serves as a support to ensure the stability of the clutch 5 installation. At the same time, the clutch 5 serves as a braking power component to control the tension.

[0048] The second pulley 6 is installed at the output end of the clutch 5, and a belt 7 is installed between the second pulley 6 and the first pulley 2. The second pulley 6 is located inside the air-cooling cover 4. This application utilizes the function of the clutch 5 to provide braking force, which can ensure the stability of the disc rotation, that is, complete the tension control. The reduction gearbox in this application can amplify the torque, thereby further ensuring the stability of the tension.

[0049] To further improve the stability of mounting bracket 3 when assembling other components, the mounting bracket 3 in this application includes:

[0050] The base plate 301 is connected to the gearbox 1. The base plate 301 mainly serves a supporting function and is connected to the top of the gearbox 1 by multiple bolts.

[0051] The bracket side plate 302 is vertically installed on the base plate 301, and the bracket side plate 302 is located outside the air-cooling cover 4. In this application, there are two bracket side plates 302, which are spaced apart. They are mainly used to assemble the clutch 5 and to limit the air-cooling cover 4 to ensure stability.

[0052] Specifically, the clutch used in this application can be a magnetic powder clutch. Furthermore, the magnetic powder will generate heat during operation. The magnetic powder clutch is cooled by components such as an air-cooled cover to reduce its temperature, prevent damage, and extend its service life.

[0053] To ensure stable assembly of the clutch, this application uses a bracket side plate for support. Specifically, the two ends of the spindle of the clutch 5 are connected to the bracket side plate 302 respectively. This application has set screws installed on the bracket side plate 302. The ends of the set screws cooperate with the two ends of the spindle of the clutch 5, that is, to fasten the two ends of the spindle of the clutch 5, so as to ensure the stability of the clutch 5 when it is working.

[0054] In operation, the second pulley 6 needs to rotate stably. Since the second pulley 6 is located inside the air-cooling shroud 4, a pulley spacer 10 is provided between the end of the second pulley 6 and the inner wall of the air-cooling shroud 4. Specifically, the pulley spacer 10 is used to block the inner ring of the bearing of the second pulley 6, thereby reducing its contact with the air-cooling shroud 4, reducing friction, and ensuring the stable rotation of the second pulley 6.

[0055] To further ensure the stability of the assembly between the second pulley 6 and the clutch 5, a flange 8 is installed at the end of the clutch 5, and an elastic pin 9 is installed between the flange 8 and the second pulley 6. Because this application needs to ensure the stability of the structure, an elastic pin is added. The elasticity and compensation capability of the elastic pin 9 can compensate for the relative displacement between the second pulley and the flange, and absorb the vibration and impact during the operation of the pulley, so as to further ensure the stability during operation.

[0056] In another embodiment, the belt 7 is a V-belt, and the reduction gearbox 1 is a three-axis two-stage reduction gearbox, which can stably control the tension through corresponding components.

[0057] Further explanation is provided regarding this application:

[0058] This application is mainly used for tension control when cable reels rotate, that is, using a tension control method of clutch + reduction gearbox to control braking torque, thereby achieving precise control of cable tension.

[0059] Specifically, during use, the disc is installed on the gearbox 1, and then the centrifugal fan and clutch are started. During the process of the disc being pulled, the clutch provides braking torque, thereby ensuring the stable operation of the entire device.

[0060] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0061] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model 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. 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 this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A cable reel tension control device for a cable feeding frame, characterized in that, include: Gearbox (1); The first pulley (2) is mounted on the input shaft of the gearbox (1); Mounting bracket (3) is mounted on the gearbox (1); An air-cooled shroud (4) is mounted on the mounting bracket (3); The clutch (5) is mounted on the mounting bracket (3) and the clutch (5) is located inside the air-cooled cover (4); The second pulley (6) is installed at the output end of the clutch (5), and a belt (7) is installed between the second pulley (6) and the first pulley (2). The second pulley (6) is located inside the air-cooled cover (4).

2. The cable reel tension control device according to claim 1, characterized in that, The mounting bracket (3) includes: A base plate (301) is connected to the gearbox (1); The bracket side plate (302) is vertically installed on the base plate (301), and the bracket side plate (302) is located outside the air-cooled cover (4).

3. The cable reel tension control device according to claim 2, characterized in that, The clutch (5) is a magnetic powder clutch.

4. The cable reel tension control device according to claim 2, characterized in that, The two ends of the spindle of the clutch (5) are respectively connected to the side plate (302) of the bracket.

5. The cable reel tension control device according to claim 2, characterized in that, A pulley spacer (10) is provided between the end of the second pulley (6) and the inner wall of the air-cooled cover (4).

6. The cable reel tension control device according to claim 2, characterized in that, A flange (8) is installed at the end of the clutch (5), and an elastic pin (9) is installed between the flange (8) and the second pulley (6).

7. The cable reel tension control device according to claim 1, characterized in that, The belt (7) is a V-belt.

8. The cable reel tension control device according to claim 1, characterized in that, The gearbox (1) is a three-axis two-stage gearbox.

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